Water resistant, pressure sensitive adhesive acrylic polymer (versions) and label made from said polymer (versions)

FIELD: chemistry.

SUBSTANCE: invention discloses versions of water resistant, pressure sensitive adhesive acrylic polymers having volume-average particle size of at least 250 nm, formed during polymerisation in the presence of a surfactant in an emulsion of a mixture of monomers. Disclosed also are versions of labels having a frontal base and a pressure sensitive adhesive, which is one of the versions of the disclosed water resistant acrylic polymers.

EFFECT: disclosed polymers enable to obtain pressure sensitive acrylic based adhesives, which during coating and drying in form of a film become transparent and resistance to whitening when exposed to water.

44 cl, 1 dwg, 2 tbl, 16 ex

 

The technical field to which the invention relates.

The subject of the invention are pressure-sensitive adhesives, and more specifically emulsion pressure-sensitive adhesives, acrylic-based, which upon coating and drying in the form of a film to become transparent and resistant to whitewash under the action of water.

The level of technology

There is a growing demand for transparent polymeric labels, because they can be used on decorated glass and plastic containers so that the label does not interfere with viewing. Paper labels block view of capacity and/or browse the contents of the container. Transparent labels improve the appearance of the packaging, and thus kind of products, and market decorative packaging their number grows much faster than paper labels, as companies producing consumer goods are constantly trying to improve the appearance of their products on the shelves.

For some embodiments of transparent labels with a pressure-sensitive adhesives (PSAs) requires a high degree of resistance to water whitewash, especially to hot water and/or very cold water. For example, bottles, labeled transparent film PSA labels, can be subjected to processing under conditions of pasteurization, and the label, as expected, remains transparent throughout p is ocess. In other embodiments labels, for example, bottles, labeled transparent PSA labels, long soak in very cold water, for example, are processed bottles for beer and beverages. Historically, for such applications, requiring special conditions, used the glue is solvent based. However, from a security perspective, the environment is favorable exception of solvents. This fact, as well as a higher rate of coverage achieved when using emulsion sensitive to pressure adhesives, favor their use instead of glue is solvent-based.

Pressure-sensitive adhesive polymers based on the emulsion produced in the presence of surfactants and other water-soluble eletrolytes, for example, in the presence of initiators of the reaction. In addition, to make binding properties or improve them use the comonomers, for example, unsaturated carboxylic acids, which tend to be on the surface of latex particles, and to remain there during the process of film forming. Films cast from such emulsions, water-sensitive and easily moutput when they drop of water. Almost always, when he gets hot water is guaranteed water whitewash, for example, when the temperature is round water is 70°C or higher.

In this art for a long time already there are complaints about the use of water-resistant polymer film on the acrylic-emulsion-based, in particular with regard to the paint film. In this technical field, it was observed that the presence of water-soluble electrolytes, surfactants and polyelectrolytes, such as polymethacrylate sodium, cause or enhance the sensitivity to water. It is also known that surface-active substance is a migratory particles, which move to the surface of the films and fade on them, also making them sensitive to water.

Technology teaches us that the use of surface-active substances in small quantities, reduction or elimination of soluble electrolytes, as well as the formation of cross-links between emulsion particles also contribute to improving or enhancing the moisture resistance.

Disclosure of inventions

In one embodiment of the invention water-resistant acrylic pressure-sensitive adhesive polymer formed by polymerization in emulsion a mixture of monomers containing at least one ester of acrylic acid and alkangovolo alcohol, the alkyl chain of which contains from 4 to 8 carbon atoms; at least one polar monomer; and, at the ore, one copolymerizing monomer selected from (a) styrene and styrene derivative monomers or (b) methyl methacrylate, ethyl acrylate, methyl acrylate, vinyl acetate and combinations of two or more monomers, where the monomer of (b) is used together with an agent for chain migration. For a pressure-sensitive adhesive polymer particle diameter averaged over the volume, approximately may be more than 210 nm, determined by laser scattering and opacity is less than 10%, as determined by the test for resistance to hot water, described in this document. In one embodiment, an increase in the degree of opacity for the PSA polymer is less than 5%, and in another embodiment, is less than 3%.

In one embodiment, water-resistant acrylic pressure-sensitive adhesive polymer formed by polymerization in emulsion a mixture of monomers consisting of about 55-98% by weight (calculated on the total weight of monomers), of at least one of ester of acrylic acid and alkangovolo alcohol containing 4 to 8 carbon atoms in the alkyl chain; about 0.5-5% by weight (calculated on the total weight of monomers)at least one polar monomer; and about 1-25% by weight (calculated on the total weight of monomers) least one copolymerizable monomer, kojima t is aetsa styrene or a derivative of styrene, where the average volume particle diameter pressure-sensitive linking of the polymer is more than about 210 nm, determined by laser scattering, and increase the opacity to it is approximately less than 10%of that determined by the test for resistance to hot water.

In one embodiment, water-resistant acrylic pressure-sensitive adhesive polymer formed by polymerization in emulsion a mixture of monomers comprising about 50-99% by weight (calculated on the total weight of monomers), of at least one of ester of acrylic acid and alkangovolo alcohol containing 4 to 8 carbon atoms in the alkyl chain; about 0.5-3% by weight (calculated on the total weight of monomers)at least one polar monomer; and about 5-50% by weight (calculated on the total weight of monomers) least one copolymerizable monomer selected from a methacrylate, acrylate, methyl acrylate, vinyl acetate and combinations of two or more monomers, about 0.1-50% by weight of the agent chain transfer. The average volume particle diameter pressure-sensitive adhesive polymer is more than about 210 nm, determined by laser scattering, and the increase in opacity for him is less than approximately 10, that determined by the test for resistance to hot water.

In addition to developing resistance to water whitewash under the action of hot water, pressure-sensitive adhesives can exhibit resistance to water whitewash under the action of very cold water. For pressure-sensitive adhesives in one embodiment, there is an increase in opacity is less than 10%of that determined by the test for resistance to cold water, described in this document. In one embodiment, the increase in opacity is less than 5%of that determined by the test for resistance to cold water.

Brief description of drawings

The drawing shows a graph of the resistance of acrylic emulsion pressure-sensitive adhesives of the size of the polymer particles.

The implementation of the invention

In accordance with the implementation of the invention prepared acrylic emulsion pressure-sensitive adhesive (PSA) polymer composition which, when coated and dried in the form of a film essentially do not change under the action of water, particularly when the action is hot (temperature above 65°C) and very cold (about 0°C) water.

In addition to providing opportunities beseeching view of a transparent and clear of facing the workpiece, where the stability of the adhesive in gnome whitewash makes them suitable for use as labels, it is also desirable that they were resistant to hot water pasteurization. Resistance to cold water is required for such applications where labels are subjected to prolonged exposure to very cold water, for example in terms of "frozen packaging. The adhesive should also have increased adhesive properties of "wet plates".

Water resistant sensitive acrylic pressure adhesive polymer is formed by emulsion polymerization of a mixture of monomers. In one embodiment, the monomer mixture contains at least one ester of acrylic acid and alkangovolo alcohol containing at least 4 carbon atoms in the alkyl chain; at least one polar monomer and at least one copolymerizing monomer is selected from styrene and strompreisvergleich monomers. In another embodiment, the monomer mixture contains at least one ester of acrylic acid and alkylboron alcohol containing at least 4 carbon atoms in the alkyl chain; at least one polar monomer and at least one copolymerizing monomer selected from methyl methacrylate, ethyl acrylate, methyl acrylate, vinyl acetate and combinations of two or more monomers.

Acrylic emulsion PSA polymers mainly composed the C one or more esters of acrylic acid and alkangovolo alcohol, containing at least 4 carbon atoms. In one embodiment, alkylacrylate contain from 4 to 8 carbon atoms in the alkyl chain. Among other, to complex alkylacrylate esters include n-butyl acrylate, 2-ethyl, 2-ethyl hexyl acrylate, hexidecimal, dellaquila, dodecylamine, isooctadecyl and the like. In one embodiment, complex alkylacrylate esters are present in an amount constituting at least about 50% of the total weight of all monomers. In one embodiment, the content ranges alkylacrylate is from about 50% to 99%, or from about 55 to 98%, or from about 75% to 90% of the total weight of all monomers. Acrylic emulsion PSA polymer contains at least one polar comonomer. Examples of such polar monomers include carboxylic acid containing from about 3 to 5 carbon atoms. Among the carboxylic acids are acrylic acid, methacrylic acrylic, maleic acid, fumaric acid, taconova acid and the like, and combinations of these two acids or more. You can also use other polar comonomers containing carboxylic and hydroxy-group. Examples of such polar comonomers include beta-carboxymethylchitin, monomethacrylates ethylsuccinate, monomethacrylates ethylphthalate, mono(meth)AK is ilati polyethylene(propylene) glycol, 2-hydroethyl(meth)acrylate, 2-hydroxypropyl(meth)acrylate and the like, and combinations of two or more comonomers. In one embodiment, the polar monomer is contained in an amount of from about 0.5% to 5%, or from about 0.5% to 3%, or from about 1% to 3% calculated on the total weight of all monomers.

In one embodiment, the acrylic emulsion PSA polymer also contains at least one styrene or stalprokatny monomer, for example, tert-butalbiral, dimethylstyrene, vinyltoluene and the like. In one embodiment, the styrene or staropromislovoe is present in amount from about 1% to 25%, or from about 1% to 15% calculated on the total weight of all monomers.

In one embodiment, the acrylic emulsion PSA also contains at least one copolymerizing monomer selected from methyl methacrylate, ethyl acrylate, methyl acrylate, vinyl acetate and combinations of two or more monomers. Copolymerizing monomer can be contained in an amount of about 0% to 50% (based on the total weight of monomers), or from about 5% to 50%, or from about 5% to 15%.

In one embodiment, the acrylic emulsion polymer may include multifunctional alafinova-unsaturated monomers. Such monomers include, for example, divinylbenzene, trivinylbenzene,dividercolor, diphenylpyridine, Divinington, divinycell, ethylene glycol di(meth)acrylate, trimethylolpropane three(meth)acrylate, divinely ether of diethylene glycol, trivinylcyclohexane, allyl(meth)acrylate, diethylene glycol di(meth)acrylate, propylene glycol di(meth)acrylate, trimethylolpropane three(meth)acrylate, 2,2-DIMETHYLPROPANE-1,3-di(meth)acrylate, 1,3-butyleneglycol di(meth)acrylate, 1,4-butanediol di(meth)acrylate, 1,6-hexanediol di(meth)acrylate, tripropyleneglycol di(meth)acrylate, triethylene glycol di(meth)acrylate, polyethylene glycol di(meth)acrylates, for example, polyethylene glycol 200 di(meth)acrylate and polyethylene glycol 600 di(meth)acrylate, tetraethylene glycol di(meth)acrylate, ethoxylated bisphenol a di(meth)acrylate, poly(butanediol) di(meth)acrylate, pentaerythritol three(meth)acrylate, trimethylolpropane triethoxide (meth)acrylate, glyceryl propoxide(meth)acrylate, pentaerythritol Tetra(meth)acrylate, dipentaerythritol of monohydroxyethyl(meth)acrylate, diphenylsilane, triphenylsilane, dimethylphenylsilane, diphenylmethylsilane methyltrienolone, diphenylguanidine, divinylbenzene, trivinylbenzene, diphenylmethylsilane, tetraphenylsilane, dimethylphenylsilane, poly(methylphenylsiloxane), poly(vinylcaprolactam), poly(fenilsalicilata) and combinations of two or more monomers.

In one embodiment, the content of the optional MES the measure in acrylic emulsion polymer varies from 0% to 20% (calculated on the total weight of monomers). In one embodiment, the content of the optional copolymerizable monomer varies from 0 to 15% (calculated on the total weight of monomers).

Other comonomers, including acetoacetamide (meth)acrylate, N-vinyl caprolactam, hydroxyethyl(propyl)(meth)acrylate and the like, can also be added to the monomer mixture. Chemical compounds, cross-linking of linear polymers, it is possible to make the quantity up to 1% (calculated on the total weight of monomers).

Acrylic emulsion PSA polymers formed in the presence of at least one surfactant. Suitable surface-active agents include anionic surfactants, nonionic surfactants and mixtures thereof. In one embodiment, is used as anionic and nonionic surfactants, the ratio of the added non-ionic substances to anion is at least about 1.5:1 by weight. In one embodiment, surfactants contribute in the ratio of from about 1.5:1 to 4:1, or from about 2:1 to 3:1.

To the anionic surfactant used in the polymerization process include those that contain sulphate, sulphonate, phosphate, polyoxyethylene sulfate, polyoxyethylene sulfate, polyoxyethylene phosphate groups and the like, as well as salts of such anionic groups, including alkali metal salts, ammonium salts, Quaternary amines and the like, including salts of the sulfated nonyl or octylphenoxypoly(ethyleneoxy) ethyl alcohols, alkyl sulphonates, alkylsulphonates, of polyoxyethylene alkyl sulphates, polyoxyethylene alkylarylsulfonates, polyoxyethylene sulfates alkylphenolic esters and combinations of two or more monomers. Typical commercially available anionic surfactants are laurilsulfate esters, for example, Disponil™ FES-32, Disponil™ FES-993, available from Cognis Corporation; di-2-ethyl hexyl sulfosuccinate sodium chloride from Cognis Corporation; salts of sulfated, nonyl and octyl phenoxy poly(ethyleneoxy) ethyl alcohols, for example, Aerosol™ NPES-458, Aerosol™-75, Aerosol™ A-501 available from Cytec Industries; aromatic ester phosphate surfactants, for example, Rhodafac™ D-510 available from the company Rhone Poulenc; copolymerizate surfactants, for example, sulfated acrylic polyesters, for example, SAM 211 from PPG Industries and the like. Other surface-active substances suitable for polymerization include dodecylbenzene sulfonate, lauryl and the like.

To the nonionic surfactant used in the process of polymer clay is Itachi, are those that contain modified fatty alcohol or acid ethoxide, alkyl phenol atoxic, polyoxyethylene alkyl phenol ether, polyoxyethylene alkyl ether and combinations of two or more substances. To commercially available non-ionic surface-active substances are modified esters of fatty alcohols and polyglycol, for example, Disponil™ AFX 1080 from the company Cognis Corporation; octyl and nonyl phenol ethoxide, for example, Igepal™ surfactants from the company Rhodia; and ethoxide11-C15secondary alcohols, for example, a series of Tergitol 15-S from Dow.

In one embodiment, surfactant contains ether of fatty alcohol and polyglycol containing C-12 hydrophobic substances and ethoxide group (EO) in an amount less than or equal to about 20 moles. In one embodiment, the EO content is 10 mol or less.

In addition to the monomers and surfactant described above, in the preparation of sensitive crushed adhesives you can use the optional ingredients, reagents, processing AIDS and other components. To an unlimited list their examples include catalysts (initiators) polymerization; electrolytes; agents of charge transfer, for example, those that contain one or more mercaptopropyl, n-dodecyl mercaptan (-DDM), halogenated groups, hydroxy-group and the like; alkaline solutions (e.g., an aqueous solution of sodium hydroxide, ammonium etc.); accelerators; defoamers, for example, DrewplusT-1201, commercially available from chemical company Ashland Specialty; and biocides, for example, Kathon LX is commercially available as a 1.5% solution from the company Rohm & Haas. In one embodiment, the polymer contains a monomer agent for the charge transfer in the amount of 0.01%to 0.5% by weight (calculated on the total weight of monomers).

For polymerization can be used in conventional water-soluble free-radical initiators. These include ammonium persulfate, potassium persulfate, and potassium persulfate. You can also use other initiators, for example, water-soluble azoinitiator, redox initiators, for example, the catalytic system persulfate/hydrosulfate. Typical concentration of the polymerization initiator is from about 0.05% to 1.0% by weight of the total monomers. After polymerization, the pH of the emulsion can be adjusted by adding to it a suitable base in an amount necessary to raise pH at least up to 7. In one embodiment, the pH is about 7.2-9, or about 7.5-8. Examples of suitable bases include hydroxides of alkali metals, hydroxides of alkaline-earth metals, ammonium hydroxide, amines and the m similar. Emulsion polymer typically has an average particle diameter, average volume, which is approximately 210 nm as determined by laser scattering using a spectrometer Nicomp Instrument. In one embodiment, the emulsion polymer has an average particle size averaged over the volume, which is at least 250 nm, or about 300 nm, or about 350 nm. In one embodiment, the emulsion polymer has a bimodal distribution of particle size.

In one embodiment of the invention receive emulsion polymers which have a high solids content and low viscosity. The solids content in the emulsion polymer may comprise at least 55% by weight. In one embodiment, the solids content is from about 55% to 70% by weight. Emulsified polymerization product may have viscosity values from about 300 to 15,000 centipoise. In one embodiment, the viscosity takes values in the range of from about 300 to 4000 centipoise.

Test for resistance to hot water

Test for resistance to hot water designed to simulate the effect occurring under conditions of pasteurization, and as a standard method for determining the opacity of the candidate adhesive polymeranalogous is defined as the ratio of the reflectance of the sample, having a base with a white background, the reflection coefficient of the sample, having a base with a black background, multiplied by 100 and expressed in percent (percent opacity). In this test, a pressure-sensitive adhesive applied on duono oriented polypropylene procurement (BORRA) with a thickness of 2 mils or basis in the form of a layer thickness of 1 mil, dried at 60°C in an oven for 10 minutes and cooled. After cooling, the film facing the workpiece or base is dipped in a glass of hot water (66+°C) and incubated for 60 minutes. PSA coated facing the workpiece is then immediately rolled into a transparent polyester film thickness of 2 mils using plastic rubber squeegee, and then measured the opacity of the obtained laminate using spectrocolorimeter (Hunter Lab ColorQuest 45/0). The percentage of opacity for the immersed sample is compared with nepodrozhaemym the sample, and the difference is recorded as Delta Opacity. Increase the opacity up to 5% is considered a good indicator. Increase the opacity up to 2.5% is considered an excellent indicator. The increase in opacity in excess of 10.0% is considered to be a poor indicator for applications that require neobalaenidae water PSA.

Test for resistance to cold water:

Test for resistance to cold in the e is designed to simulate the effect appearing in "frozen packaging, as well as the standard method for determining the opacity of the candidate adhesive polymer when it is used on bottles of various drinks. The test is essentially the same as the test for resistance to hot water, with the exception that the PSA coated facing the workpiece is immersed in the water bath at a temperature of about 0°C (32°F) and incubated for 72 hours, then measure the opacity using spectrocolorimeter. Increase the opacity to around 5% is considered an excellent indicator. The increase in opacity for more than 10.0% is considered to be a poor indicator for applications that require neobalaenidae water PSA adhesives.

When the coating on the substrate and drying the polymers become sticky and suitable for the production of adhesives including adhesive tapes, labels and other structures. In one embodiment, is covered with a design obtained by applying a polymer emulsion on the released layer, drying it, and applying finish material on facing the workpiece or other substrate, such as paper or film base. Alternatively, the emulsion can be applied directly facing the workpiece and dried, and then keep it to use protective layer or isoenergetically the opposite side of the structure. In another embodiment, coated design get a simple coating of emulsion polymer on the substrate, enabling him to be dried.

Examples

Example 1

Prepare a bootable reactor containing 307.2 g of deionized water. Primary emulsion soap solution obtained by dissolving 42.01 g product Disponil 993 (solids content of 32%, the production company Cognis Corp.), 7.26 g of Aerosol OT-75 (solids content 75%, the production company Cytec) in 120.03 g of deionized water.

A Monomeric mixture of 753.62 g 2-ethylhexyl acrylate, 89.75 g of methyl methacrylate, 44.88 g of styrene and 8.97 g of acrylic acid. The monomer mixture was added to a solution of the primary emulsion with stirring and stirred until then, until the viscosity will not accept values in the range 1000-4000 centipoise (Brookfield RV, #3/12 rpm).

Water boot initiator solution obtained by dissolution of 1.95 g of potassium persulfate in 77.96 g of deionized water. The initiator of the collisions get added 1.95 g of potassium persulfate. Boot the reactor is placed in a 1.5 liter reactor. Boot the reactor was heated to 78°C and add the initiator of the collision. The mixture was incubated for 5 minutes at 78°C. the Loading of the primary emulsion begin at speeds 4.637 g/min. Through twenty-five minutes after the start of loading of the primary emulsion begin an Addendum is their water initiation load at a speed of 0.347 g/min The primary emulsion is added during 3.83 hours. The addition of an aqueous initiator is carried out for 3.83 hours. For the duration of the download the internal temperature of the reactor support at 80-82°C. After completion of the download content is maintained at 80°C. for another one hour and then cooled. The latex is neutralized with dilute ammonium hydroxide solution to pH 7.5. The solids content in the final latex is 61.95%. The viscosity of 460 centipoise (Brookfield RV, #3/12 rpm). The measurement result of the particle size gives bimodal, which is 52.1% consists of particles with a size of 185.3 nm, and 47.9% consists of particles with a size of 578.3 nm. When tested in the above test resistance to hot water Delta opacity is 9.5%.

Example 2

Prepare a bootable reactor containing 283.81 g of deionized water. Primary emulsion soap solution obtained by dissolution of 17.65 g of the drug Disponil AFX-1080 (solids content 80%, the production company Cognis Corp.), 7.45 g of Aerosol OT-75 (solids content 75%, the production company Cytec) in 106.78 g of deionized water.

A Monomeric mixture of 772.74 g 2-ethylhexyl acrylate, 92.03 g of methyl methacrylate, at 46.01 g of styrene and 9.20 g of acrylic acid. The monomer mixture was added to a solution of the primary emulsion with stirring and stirred until then, until the viscosity will not accept the mother values in the range 1000-4000 centipoise (Brookfield, RV, #3/12 rpm).

Water boot initiator solution obtained by dissolution of 2.67 g of potassium persulfate in 118.54 g of deionized water. The initiator of the collisions produced by adding 2.67 g of potassium persulfate.

Boot the reactor is placed in a 1.5 liter reactor. Boot the reactor was heated to 78°C and add the initiator of the collision. The mixture was incubated for five minutes at 78°C. the Loading of the primary emulsion begin at speeds 4.574 g/min. Through twenty-five minutes after the start of loading of the primary emulsion start water loading of the initiator at a speed of 0.527 g/min Primary emulsion is added during 3.83 hours. The addition of an aqueous initiator is carried out for 3.83 hours. For the duration of the download the internal temperature of the reactor support at 80-82°C. After completion of the download content is maintained at 80°C. for another one hour and then cooled. The latex is neutralized and diluted ammonium hydroxide solution to pH 7.5. The solids content in the final latex is 62.46%. Viscosity is 1780 centipoise (Brookfield, RV1 #3/Ob/min). The measurement result of the particle size gives a bimodal distribution. When tested in the above test resistance to hot water Delta opacity is 3.75%.

Example 3

Prepare a bootable reactor containing 283.52 g of deionized water. The PE the primary emulsion soap solution obtained by dissolution of 17.65 g of the drug Disponil AFX-1080 (solids content 80%, production company Cognis Corp.), 7.44 g of Aerosol OT-75 (solids content 75%, the production company Cytec) in 106.67 g of deionized water.

A Monomeric mixture of 771,95 g 2-ethylhexyl acrylate, 91.93 g of methyl methacrylate, at 45.97 g of styrene, 9.20 g of acrylic acid and 1.54 g of tetraethylene glycol diacrylate (100% of the drug produced by the company Sartomer). The monomer mixture was added to a solution of the primary emulsion with stirring and stirred until then, until the viscosity will not accept values in the range 1000-4000 centipoise (Brookfield RV, #3/12 rpm).

Water boot initiator solution obtained by dissolution of 2.67 g of potassium persulfate in 1 18.42 g of deionized water. The initiator of the collisions produced by adding 2.67 g of potassium persulfate.

Boot the reactor is placed in a 1.5 liter reactor. Boot the reactor was heated to 78°C and add the initiator of the collision. The mixture was incubated for 5 minutes at 78°C. the Loading of the primary emulsion begin at speeds 4.576 g/min. Through twenty-five minutes after the start of loading of the primary emulsion start water loading of the initiator at a speed of 0.526 g/min Primary emulsion is added during 3.83 hours. The addition of an aqueous initiator is carried out for 3.83 hours. For the duration of the download the internal temperature of the reactor support at 80-82°C. After completion of the download soda is one maintained at 80°C. for another one hour, and then cooled. The latex is neutralized with dilute ammonium hydroxide solution to pH 7.5. The solids content in the final latex is 62.5%. Viscosity is 1560 centipoise (Brookfield RV, #3/12 rpm). The measurement result of the particle size gives a bimodal distribution. When tested in the above test resistance to hot water Delta opacity is 6.9%.

Example 4

Prepare a bootable reactor containing 283.52 g of deionized water. Primary emulsion soap solution obtained by dissolving 22.06 g of Igepal CO-887 (solids content 70%, the production company Rhodia), 7.44 g of Aerosol OT-75 (solids content 75%, the production company Cytec) in 106.67 g of deionized water.

A Monomeric mixture of 771.95 g 2-ethylhexyl acrylate, 91.93 g of methyl methacrylate, at 45.97 g of styrene, and 9.20 g of acrylic acid. The monomer mixture was added to a solution of the primary emulsion with stirring and stirred until then, until the viscosity will not accept values in the range 1000-4000 centipoise (Brookfield RV, #3/12 rpm).

Water boot initiator solution obtained by dissolution of 2.67 g of potassium persulfate in 118.42 g of deionized water. The initiator of the collisions produced by adding 2.67 g of potassium persulfate.

Boot the reactor is placed in a 1.5-liter reactor. Boot the reactor was heated to 78°C and add the initiator fighting the clusters. The mixture was incubated for five minutes at 78°C. the Loading of the primary emulsion begin at speeds 4.576 g/min. Through twenty-five minutes after the start of loading of the primary emulsion start water loading of the initiator at a speed of 0.526 g/min Primary emulsion is added during 3.83 hours. The addition of an aqueous initiator is carried out for 3.83 hours. For the duration of the download the internal temperature of the reactor support at 80-82°C. After completion of the download content is maintained at 80°C. for another one hour and then cooled. The latex is neutralized with dilute ammonium hydroxide solution to pH 7.5. The solids content in the final latex is 62.39%. Viscosity is 1340 centipoise (Brookfield RV, #3/12 rpm). The measurement result of the particle size gives a bimodal distribution. When tested in the above test resistance to hot water Delta opacity is 6.9%.

Example 5

Prepare a bootable reactor containing 283.52 g of deionized water. Primary emulsion soap solution obtained by dissolving 23.09 g product Disponil AFX-1080 (solids content 80%, the production company Cognis Corp.) in 117.4 g of deionized water.

A Monomeric mixture of 773.95 g 2-ethylhexyl acrylate, 91.93 g of methyl methacrylate, at 45.97 g of styrene and 9.20 g of acrylic acid. The monomer mixture was added to dissolve is the primary emulsion with stirring and stirred until while the viscosity will not accept values in the range 1000-4000 centipoise (Brookfield RV, #3/12 rpm).

Water boot initiator solution obtained by dissolution of 2.67 g of potassium persulfate in 118.42 g of deionized water. The initiator of the collisions produced by adding 2.67 g of potassium persulfate.

Boot the reactor is placed in a 1.5 liter reactor. Boot the reactor was heated to 78°C and add the initiator of the collision. The mixture was incubated for five minutes at 78°C. the Loading of the primary emulsion begin at speeds 4.576 g/min. Through twenty-five minutes after the start of loading of the primary emulsion begin adding water initiation load at a speed of 0.526 g/min Primary emulsion is added during 3.83 hours. The addition of an aqueous initiator is carried out for 3.83 hours. For the duration of the download the internal temperature of the reactor support at 80-82°C. After completion of the download content is maintained at 80°C. for another one hour and then cooled. The latex is neutralized with dilute ammonium hydroxide solution to pH 7.5. The solids content in the final latex is 62.5%. Viscosity is 1050 centipoise (Brookfield RV, #3/Ob/min). The result of measurement of particle size gives a bimodal distribution. When tested in the above test resistance to hot water Delta opacity is 8.35%.

Por what measures 6

Prepare a bootable reactor containing 283.81 g of deionized water. Primary emulsion soap solution obtained by dissolution of 17.65 g of the drug Disponil AFX-1080 (solids content 80%, the production company Cognis Corp.), 7.45 g of Aerosol OT-75 (solids content 75%, the production company Cytec) in 116.78 g of deionized water.

A Monomeric mixture of 772.74 g 2-ethylhexyl acrylate,92.03 g of methyl methacrylate, at 46.01 g of styrene and 9.20 g of acrylic acid. The monomer mixture was added to a solution of the primary emulsion with stirring and stirred until then, until the viscosity will not accept values in the range 1000-4000 centipoise (Brookfield RV, #3/12 rpm).

Water boot initiator solution obtained by dissolution of 2.26 g of ammonium persulfate in 118.54 g of deionized water. The initiator of the collisions produced by adding 2.26 g of potassium persulfate.

Boot the reactor is placed in a 1.5-liter reactor. Boot the reactor was heated to 78°C and add the initiator of the collision. The mixture was incubated for five minutes at 78°C. the Loading of the primary emulsion begin at speeds 4.574 g/min. Through twenty-five minutes after the start of loading of the primary emulsion begin adding water initiation load at a speed of 0.527 g/min Primary emulsion is added during 3.83 hours. The addition of an aqueous initiator is carried out for 3.83 the aces. For the duration of the download the internal temperature of the reactor support at 80-82°C. After completion of the download content is maintained at 80°C. for another one hour and then cooled. The latex is neutralized with dilute ammonium hydroxide solution to pH 7.5. The solids content in the final latex is 62.46%. Viscosity is 1120 centipoise (Brookfield RV, #3/12 rpm), and the size of the particles gives a bimodal distribution. When tested in the above test resistance to hot water measured Delta-opacity is 2.85%.

Example 7

Prepare a bootable reactor containing 40.0 g of 100 nm emulsion polymer (which, as you know, is the germ of crystallization or as preparation for embryo) 185.0 g of deionized water.

Primary emulsion soap solution obtained by dissolution of 15.34 g of the drug Disponil AFX-1080 (solids content 80%, the production company Cognis), and 6.48 g of Aerosol OT-75 (solids content 75%) 120.0 g of deionized water. A Monomeric mixture of 669.38 g 2-ethylhexyl acrylate (2-S), 79.69 g of methyl methacrylate (MMA), at 39.84 g of styrene and 7.97 g of acrylic acid (AA). The monomer mixture was added to the primary emulsion soap solution with stirring and stirred until then, until the viscosity will not be about 2000 centipoise (Brookfield RV, #3 12 rpm). The solution dozagruzki the floor shall indicate the dissolution of 3.19 g of potassium persulfate in 156.0 g of deionized water. The original solution of the initiator of the reaction is obtained by dissolution of 1.43 g of potassium persulfate in 47.5 g of deionized water. Boot reactor make a 1.5-liter, jacketed reactors, which is pre-filled with nitrogen. Boot the reactor is maintained at 82°C and add to it a solution of the initiator of the collision. The mixture was incubated for five minutes at 80°C. the Primary emulsion start downloading at a speed of 4.0 g/min. Through twenty-five minutes to begin initiating Szarotka at a speed of 0.69 g/min Primary emulsion load for four hours. During the download, the temperature inside the reactor is supported approximately at 80°C. After completion of all download content stand at approximately 80°C for one hour and then cooled. The latex is neutralized with dilute ammonium hydroxide solution to pH 7.0. The solids content in the final latex is 58.3%. Viscosity of 400 centipoise (Brookfield RV #4 at 20 rpm). The average diameter of the particles is 383 nm. When tested in the above test immersion in hot water Delta opacity is 3.8%.

Comparative Example 8

Prepare a bootable reactor containing 5.4 g of the drug Disponil AFX-1080 (solids content 80%, the production company Cognis), 2.24 g of Aerosol OT-75 (solids content 75%) 450.0 g of deionized the odes. Primary emulsion soap solution obtained by dissolving 5.4 g of the drug Disponil AFX-1080 (solids content 80%, the production company Cognis), and 2.24 g of Aerosol OT-75 (solids content 75%) 120.0 g of deionized water. A Monomeric mixture of 504.0 g 2-EHA, 60.0 g of MMA, 30.0 g of styrene and 6.0 g of AA. The monomer mixture was added to the primary emulsion soap solution with stirring and stirred until then, until the viscosity will not be about 2000 centipoise (Brookfield, RV, 3 #12). Boot reactor make a 1.5-liter, jacketed reactors, which is pre-filled with argon. Boot the reactor is maintained at 82°C and add to it the 3.8 g of potassium persulfate. The mixture was incubated for five minutes at 80°C. the Loading of the primary emulsion begin at a speed of 8.1 g/min Primary emulsion downloads for 1-1 .5 hours. During the download, the temperature inside the reactor is supported approximately at 80°C. After completion of all download content stand at approximately 80°C for one hour and then cooled. The latex is neutralized with dilute ammonium hydroxide solution to pH 7.0. The solids content in the final latex is 50.1%. The viscosity of 800 centipoise (Brookfield RV, #4 at 20 rpm). The average diameter of the particles is 154 Nm. When tested in the above test resistance to hot water the Delta opacity is 22.2%.

Examples 9 and 10

Examples 9 and 10 are chiefly in accordance with the procedure of Example 7, except that increases the number of added germ of crystallization, which leads to the fact that the average particle size becomes smaller. The drawing shows a graph based on the data presented in table 1.

Table 1
ExampleParticle size (nm)Delta opacity
7383the 3.8
815422,2
929213,8
1019516,5

Example 11

Prepare a bootable reactor containing 41.92 g 100 nm emulsion polymer (which, as you know, is the germ of crystallization or zagotovka for germ) in 183.4 g of deionized water. Primary emulsion soap solution obtained by dissolving 16.08 g of the drug Disponil AFX-1080 (solids content 80%, the production company Cognis) and 6.79 g of Aerosol OT-75(solids content 75%) in deionized water. A Monomeric mixture of 701.52 2-ENE, 83.52 g MMA, 41.75 g of styrene and 8.16 AA. The monomer mixture was added to the primary emulsion soap solution with stirring and stirred until then, until the viscosity will not be approximately 1000-4000 centipoise (Brookfield, RV, 3#12). The solution dozagruzki obtained by dissolution of 3.34 g of potassium persulfate in 163.49 g of deionized water. The original solution of the initiator of the collisions produced by dissolving 1.50 g of potassium persulfate in 52.4 g of deionized water. Boot reactor contribute 2.0-liter, jacketed reactors, which is pre-filled with nitrogen. Boot the reactor is maintained at 82°C and add to it a solution of the initiator of the reaction. The mixture was incubated for five minutes at 80°C. the Loading of the primary emulsion begin at a speed of 2.9 g/min Through twenty-five minutes, begin initiating Szarotka at a speed of 0.47 g/min Primary emulsion load during 5.83 hours. During the download, the temperature inside the reactor is supported approximately at 80°C. After completion of all download content stand at approximately 80°C for one hour and then cooled. The latex is neutralized with dilute ammonium hydroxide solution to pH 7.5. The solids content in the final latex is 58.3%. Viscosity is 780 centipoise (Brookfield RV, #4, rpm 20). The average diameter is Tr particle is 385 nm. When tested in the above test resistance to hot water Delta opacity is 0.52%.

Other samples, a-I, prepared from different amounts of acrylic acid (AA), styrene (Sty) and methyl methacrylate (MMA) in accordance with the procedure described in Example 11. Table 2 presents data detailing the impact styrene and MMA on Delta opacity after immersion in hot water.

Table 2
Sample2-SAAStyMMADelta Opacity
And8325107,35
In8411050,29
832105of 5.68
D84 11502,13
E8321502,03
F791200-
G741250-
N782155-
I7911010-

Example 12

Prepare a bootable reactor containing 11.33 g 70 nm emulsion polymer (which, as you know, is the germ of crystallization or as preparation for an embryo) in 226.59 g of deionized water. Primary emulsion soap solution obtained by dissolving 13.20 g of the drug Disponil AFX-1080 (solids content 80%, production is the primary objective of the company Cognis) and 5.55 g of Aerosol OT-75 (solids content 75%) in deionized water. A Monomeric mixture of 758.39 g 2-ENE, 45.14 g of MMA, 90.29 g of styrene, 8.83 g of AA and 2.27 g of tetraethylene glycol diacrylate. The monomer mixture was added to the primary emulsion soap solution with stirring and stirred until then, until the viscosity will not be approximately 1000-4000 centipoise (Brookfield, RV, 3 #12). The solution dozagruzki obtained by dissolution of 3.05 g of ammonium persulfate in 107.63 g of deionized water. The original solution of the initiator of the collisions is obtained by dissolution of 1.37 g of ammonium persulfate in 28.32 g of deionized water. Boot reactor contribute 2.0-liter, jacketed reactors, which is pre-filled with nitrogen. Boot the reactor is maintained at 82°C and add to it a solution of the initiator of the collision. The mixture was incubated for five minutes at 80°C. the Loading of the primary emulsion begin at a speed of 3.09 g/min in five minutes begin initiating Szarotka at a speed of 0.299 g/min Primary emulsion load during 5.83 hours. During the download, the temperature inside the reactor is supported approximately at 80°C. After completion of all download content stand at approximately 80°C for one hour and then cooled. The latex is neutralized with dilute ammonium hydroxide solution to pH 7.5. The solids content in the final latex is 61.5%. Viscosity is 320 centipoise (Brookfield RV, #3/12). The average diameter of the particles is around 385 nm. When tested in the above test resistance to hot water Delta opacity is 3.21%.

Example 13

Prepare a bootable reactor containing 10.73 g 70 nm emulsion polymer (which, as you know, is the germ of crystallization or as preparation for an embryo) in 225.37 g of deionized water. Primary emulsion soap solution obtained by dissolving 12.5 g of the drug Disponil AFX-1080 (solids content 80%, the production company Cognis) and 5.25 g of Aerosol OT-75 (solids content 75%) in 171.69 g deionized water. A Monomeric mixture of 719.56 g 2-ENE, 128.5 g of MMA, 8.57 g of AA and 3.51 g of n-dodecyl mercaptan (nDDM). The monomer mixture was added to the primary emulsion soap solution with stirring and stirred until then, until the viscosity will not be about 2000 centipoise (Brookfield, RV, 3 #12). The solution dozagruzki obtained by dissolution of 2.89 g of ammonium persulfate in 167.4 g of deionized water. The original solution of the initiator of the collisions is obtained by dissolving 1.3 g of potassium persulfate in at 26.83 g of deionized water. Boot reactor contribute 2.0-liter, jacketed reactors, which is pre-filled with nitrogen. Boot the reactor is maintained at 82°C and add to it a solution of the initiator of the collision. The mixture was incubated for five mine is at 82°C. Download primary emulsion begin at a speed of 5.81 g/min in five minutes begin initiating Szarotka at a speed of 0.895 g/min Primary emulsion load for five hours and fifty minutes. During the download, the temperature inside the reactor is supported at approximately 82°C. After completion of all download content stand at approximately 82°C for one hour and then cooled. The latex is neutralized with dilute ammonium hydroxide solution to pH 7.0. The solids content in the final latex is 58.5%, and Delta opacity - 2.1%.

Example 14

Prepare a bootable reactor containing 10.73 g 70 nm emulsion polymer (which, as you know, is the germ of crystallization or as preparation for the embryo) and 0.04 g of Fe2+EDTA in 225.37 where ionized water. Primary emulsion soap solution obtained by dissolving 12.5 g of the drug Disponil AFX-1080 (solids content 80%, the production company Cognis), 5.25 g of Aerosol OT-75 (solids content 75%), and 0.86 g Bruggeman FF-6 in 171.69 g of deionized water. A Monomeric mixture of 719.56 g 2-ENE, 128.5 g of MMA, 1.76 g nDDM and 8.57 GAA. The monomer mixture was added to the primary emulsion soap solution with stirring and stirred until then, until the viscosity will not be about 2000 centipoise (Brookfield, RV, 3 #12). The solution dozagruzki which are square-dissolution 6.85 g of ammonium persulfate in 167.4 g of deionized water. Boot reactor contribute 2.0-liter, jacketed reactors, which is pre-filled with nitrogen. Boot the reactor is maintained at 40°C, and Szarotka begin at a speed of 0.85 g/min Simultaneously start downloading primary emulsion at a speed of 5.81 g/min Primary emulsion load for five hours and fifty minutes. During the download, the temperature inside the reactor is supported approximately at 40°C. After completion of all download content stand at approximately 40°C for one and a half hours, and then cooled. The latex is neutralized with dilute ammonium hydroxide solution to pH 7.0. The solids content in the final latex is 60.1%.

Example 15

Prepare a bootable reactor containing 10.73 g 70 nm emulsion polymer (which, as you know, is the germ of crystallization or zagotovka for the embryo) and 0.04 g of Fe2+EDTA in 225.37 g of deionized water. Primary emulsion soap loading is obtained by dissolving 12.5 g of the drug Disponil AFX-1080 (solids content 80%, the production company Cognis), 5.25 g of Aerosol OT-75 (solids content 75%) and 0.86 g Bruggeman FF-6 in 171.69 g of deionized water. A Monomeric mixture of 719.56 g 2-ENE, 85.66 g MMA, 42.83 g of styrene and 8.57 g AA. The monomer mixture was added to the primary emulsion of soap solution when PE is emiliani and stirred until while the viscosity will not be about 2000 centipoise (Brookfield, RV, 3 #12). The solution dozagruzki obtained by dissolution of 6.85 g of ammonium persulfate in 167.4 g of deionized water. Boot reactor contribute 2.0-liter, jacketed reactors, which is pre-filled with nitrogen. Boot the reactor is maintained at 40°C, and Szarotka begin at a speed of 0.85 g/min Simultaneously start downloading primary emulsion at a speed of 5.81 g/min Primary emulsion load for five hours and fifty minutes. During the download, the temperature inside the reactor is supported approximately at 40°C. After completion of all download content stand at approximately 40°C for one and a half hours, and then cooled. The latex is neutralized with dilute ammonium hydroxide solution to pH 7.0. The solids content in the final latex is 60.1%.

Example 16

Prepare a bootable reactor containing 4.33 g of potassium persulfate in 511.50 g of deionized water. Primary emulsion soap solution obtained by dissolving 69.95 g product Disponil FES0993 and 12.09 g Hydropalat 875 in 199.86 g of deionized water. A Monomeric mixture of 1254.80 g 2-ENE, 149.44 g MMA, 74.72 g of styrene and 14.94 g of acrylic acid. To the monomer mixture is added 0.26 g of n-dodecylmercaptan. The monomer mixture was added to the primary emulsion was washing the resultant solution with stirring. Initiation load is obtained by dissolution of 129.81 g of ammonium persulfate in 129.81 where ionized water. Boot reactor contribute in jacketed reactors, which is pre-filled with nitrogen. Boot the reactor is maintained at 78°C, and the loading of the primary emulsion begin at a speed of 6.5 g/min after About 25 minutes start conducting initiation of dozagruzki at a speed of 0.6 g/min After completion of the download content stand at approximately 78-81°C for one hour and then cooled. The latex is neutralized 19.39 g 12% solution of ammonium hydroxide. Biocide, Acticide LA add in the amount of 2.33 g after the latex is cooled to 38°C.

With regard to the application, the pressure-sensitive adhesives of the invention can be used as part of the labeling of the coating or cladding of the preform, and they can be used in the form of adhesive tapes and labels. In one embodiment, the acrylic emulsion PSA is applied on a transparent polymer facing the workpiece to obtain a transparent labels. Polymer facing the workpiece can be polyolefins, polyesters, polyvinyl chloride, polycarbonate film or multiline structure containing layers of the same or different polymers. Multiline films can be castrogiovanni film. Examples of the mule is tolaini commercial available films include film FasClear® and film Primax® Avery Dennison Corp. The label may contain a protective layer bonded to the acrylic emulsion PSA. Tape or stickers can be applied on a transparent substrate, for example, glass or plastic bottles and similar containers.

In one embodiment, the label contains a transparent duono oriented polypropylene (BORRA) facing the workpiece thickness 2 mil with adhesive layer glued to it. You can stick a protective layer with a thickness of 1 mil of polyethylene terephthalate (PET) to the surface of the adhesive layer as opposed to facing the workpiece. The adhesive layer can be applied directly facing the workpiece or to put on the protective layer, and then laminated facing the workpiece.

Since the invention described in relation to its preferred embodiments, it should also be understood that the description for a person skilled in the art will be apparent various modifications of the embodiments. Therefore, it should be understood that the invention disclosed in the description of the application, provides coverage of all modifications that fall within the scope of the appended claims.

1. Water-resistant acrylic pressure-sensitive adhesive polymer formed by polymerization in the presence of surfactants in the emulsion mixture is suits, characterized in that it has an average volume particle diameter of at least 250 nm measurement by laser scattering, thus increasing the opacity of the polymer is less than about 10% when measured according to the test for resistance to hot water, and the mixture of monomers comprises at least one ester of acrylic acid and alkangovolo alcohol containing from 4 to 8 carbon atoms in the alkyl chain, at least one polar monomer, at least one copolymerizing monomer selected from the group comprising styrene and styrene-derived monomer, or at least one copolymerizing monomer selected from the group comprising a methacrylate, acrylate, methyl acrylate, vinyl acetate and combinations of at least two of them and used together with the agent for the charge transfer in the chain.

2. The polymer according to claim 1, wherein the polar monomer is a monomer containing a carboxyl group, a monomer containing a hydroxyl group, or combinations thereof.

3. The polymer according to claim 1, wherein the polar monomer contains a carboxylic acid containing 3 to 5 carbon atoms.

4. The polymer according to claim 1, wherein the polar monomer selected from the group comprising acrylic acid, methacrylic acid, maleic acid, fumar the new acid, taconova acid and combinations of at least two of them.

5. The polymer according to claim 1, wherein the polar monomer selected from the group comprising beta-carboxymethylchitin, monomethacrylates-ethylsuccinate, monomethacrylate, polyethylene-glycol monoacrylate, polypropylenglycol monoacrylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate, 2-hydroxyethylacrylate, 2-hydroxypropyl acrylate and combinations of at least two of them.

6. The polymer according to claim 1, characterized in that the ester of acrylic acid and alkangovolo alcohol contains 2-ethyl hexyl acrylate.

7. The polymer according to claim 1, characterized in that copolymerizing monomer contains at least a styrene or stalprokatny monomer.

8. The polymer according to claim 7, characterized in that copolymerizing monomer further comprises methylmethacrylate comonomer.

9. The polymer according to claim 7, characterized in that the styrene or staropromislovoe selected from the group including styrene, tributyltin, dimethylstyrene, vinyltoluene and combinations of at least two of them.

10. The polymer according to claim 1, characterized in that copolymerizing monomer selected from the group including methyl methacrylate, acrylate, methyl acrylate, vinyl acetate and combinations of at least two of them.

11. The polymer of claim 10, characterized in that the agent for the charge transfer in the chain contains the n-dodecylmercaptan.

12. The polymer according to claim 1, characterized in that the polymerization includes the presence of at least one nonionic surface-active substances.

13. The polymer according to claim 1, characterized in that the polymerization includes the presence of at least one anionic surfactant.

14. The polymer according to item 12, wherein the polymerization comprises additionally the presence of at least one anionic surfactant, and a mass ratio of nonionic surfactant to anionic surfactant is approximately from 1.5:1 to 4:1.

15. The polymer according to item 12, wherein the non-ionic surfactant selected from the group comprising modified fatty alcohol or acid atoxic, alkylphenol atoxic, polyoxyethylene alkyl phenol ether, polyoxyethylene alkyl ether and combinations of at least two of them.

16. The polymer according to item 13, wherein the anionic surfactant is selected from the group comprising salts of the sulfated nonyl or octyl phenoxypoly(ethyleneoxy)ethyl alcohols, alkylsulfonate, alkylsulfonyl, polyoxyethyleneglycol, polyoxyethylene-alkylarylsulfonate, polyoxyethylene alkyl phenol ether sulfate and a combination of at least two of them.

17. The polymer according to claim 1, characterized in that the solids content in the emulsion is at least about 55 wt.%.

18. The polymer according to claim 1, characterized in that the solids content in the emulsion is from about 55 to 70 wt.%.

19. The polymer according to claim 1, characterized in that the polymerization includes the presence of at least one water-soluble initiator.

20. The polymer according to claim 19, characterized in that the initiator is selected from the group comprising ammonium persulfate, potassium persulfate, sodium persulfate, azoinitiators and combinations of at least two of them.

21. The polymer according to claim 7, characterized in that the mixture of monomers further includes at least one monomer selected from the group comprising a methacrylate, acrylate, methyl acrylate, vinyl acetate and combinations of at least two of them.

22. The polymer according to claim 1, characterized in that the increase in opacity of the polymer is less than about 5% when measured according to the test for resistance to hot water.

23. The polymer according to claim 1, characterized in that the increase in opacity of the polymer is less than about 3% when measured according to the test for resistance to hot water.

24. The polymer according to claim 1, characterized in that the increase in opacity of the polymer is less than approximately 10% of the ri measurement on the test for resistance to cold water.

25. Water-resistant polymer according to claim 1, characterized in that the increase in opacity of the polymer is less than about 5%, as determined by the test for resistance to cold water.

26. Water-resistant acrylic pressure-sensitive adhesive polymer formed by polymerization in the presence of surfactants in emulsion a mixture of monomers, characterized in that it has an average volume particle diameter equal to at least 250 nm measurement by laser scattering, thus increasing the opacity of the polymer is less than approximately 10% in the measurement of test for resistance to hot water, and the mixture comprises about 70 to 98 wt.%, at least one of ester of acrylic acid and alkangovolo alcohol containing from 4 to 8 carbon atoms in the alkyl chain, approximately 0.5÷5 wt.%, at least one polar monomer and about 1 to 25 wt.%, at least one of styrene or straponsmodel copolymerizable monomer.

27. Water-resistant acrylic pressure-sensitive adhesive polymer formed by polymerization in the presence of surfactants in emulsion a mixture of monomers, characterized in that it has an average volume particle diameter equal to at least 250 nm PR is the measurement by laser scattering, the increase in opacity of the polymer is less than approximately 10% in the measurement of test for resistance to hot water, and the mixture includes approximately 50÷98 wt.%, at least one of ester of acrylic acid and alkangovolo alcohol containing from 4 to 8 carbon atoms in the alkyl chain, approximately 0.5÷3 wt.%, at least one polar monomer and about 1÷50 wt.%, at least one copolymerizable monomer chosen from the group comprising a methacrylate, acrylate, methyl acrylate, vinyl acetate and combinations of at least two of them, and about 0.01÷0.5 wt.% agent for charge transfer.

28. Water-resistant acrylic pressure-sensitive adhesive polymer formed by polymerization in the presence of surfactants in emulsion a mixture of monomers, characterized in that it has an average volume particle diameter equal to at least 250 nm measurement by laser scattering, thus increasing the opacity of the polymer is less than approximately 5% in the measurement of test for resistance to hot water, and the mixture of monomers comprises approximately 75÷90 wt.%, at least one of ester of acrylic acid and alkangovolo alcohol containing from 4 to 8 atoms angle of the ode in the alkyl chain, approximately 1.0÷3 wt.%, at least one polar monomer, about 1÷15 wt.%, at least one of styrene or styrene-derived copolymerizable monomer; about 0÷20 wt.%, at least one copolymerizable monomer selected from the group comprising a methacrylate, acrylate, methyl acrylate, vinyl acetate and combinations of at least two of them.

29. The label containing the front base and a pressure-sensitive adhesive, representing water-resistant acrylic polymer according to claim 1.

30. The label containing the front base and a pressure-sensitive adhesive, representing water-resistant acrylic polymer for p.

31. The label containing the front base and a pressure-sensitive adhesive, representing water-resistant acrylic polymer according to item 27.

32. The label containing the front base and a pressure-sensitive adhesive, representing water-resistant acrylic polymer for p.

33. Water-resistant acrylic pressure-sensitive adhesive polymer formed by polymerization in the presence of surfactants in emulsion a mixture of monomers, characterized in that it has an average volume particle diameter, greater than about 210 nm when measured by laser scattering, thus increasing the opacity of the polymer is m the her than about 10% when measured according to the test for resistance to hot water, and the mixture of monomers contains at least one ester of acrylic acid and alkangovolo alcohol containing from 4 to 8 carbon atoms in the alkyl chain, at least one polar monomer, at least one copolymerizing monomer, which is selected from the group comprising styrene and strapromania monomers, and at least one copolymerizing monomer, which is selected from the group comprising a methacrylate, acrylate, methyl acrylate, vinyl acetate and combinations of at least two of them.

34. The polymer p, characterized in that the mixture further comprises an agent for charge transfer in the chain.



 

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FIELD: chemistry.

SUBSTANCE: sheet contains base material and a pressure-sensitive layer. End-to-end holes which run from the front surface of the base material to the working surface of the adhesive layer are made in the pressure-sensitive adhesive sheet through laser thermal treatment. The base material used is material which, when heated at a rate of temperature increase of 20°C/min in a nitrogen atmosphere, temperature at peak thermal decomposition where thermal decomposition of this material is maximum does not exceed 450°C, and the difference between the peak thermal decomposition temperature of the base material and the melting peak temperature does not exceed 250°C. The base material is a film based on a synthetic resin, a foamed film or a laminated film.

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The invention relates to sealing compositions, in particular polyacrylate connecting the sealant composition of the copolymers and Acrylonitrile

The invention relates to a sticky water-based adhesive compositions based on acrylic copolymers, particularly to adhesives for adhesive tapes for paper, cardboard, plastic or metal bases, used for the manufacture of self-adhesive decorative and finishing materials, for gluing cardboard products on conveyor technology for labeling in paper, printing and other industries
The invention relates to adhesive substances, and more particularly to a method of manufacturing heat-sensitive adhesive compositions

The invention relates to a water dispersion glue-based dispersion of a copolymer or terpolymer with fire-retardant agent-based compounds of boron or aluminum

The invention relates to adhesive compositions intended for gluing paper, cardboard, wood, veneer, plywood, cotton fabrics in any combination, as well as facing chipboard and wood decorative paper laminate

The invention relates to adhesive compositions based on acrylic copolymers used for gluing PVC coating materials to various surfaces, in particular polyvinylchloride film to a wooden surface for facing buildings of television and radio

The invention relates to the field of production of adhesive compositions used for bonding of various materials to metal surfaces, such as PVC film to steel in the manufacture of metal, felt and cloth to detail from aluminum, bronze and anodized steel Assembly VCR

The invention relates to the production of adhesives, namely, adhesive compositions based on epoxy Dianova resin ED-20 obtained for adhesion of polymer films to metal surfaces

FIELD: chemistry.

SUBSTANCE: invention discloses versions of water resistant, pressure sensitive adhesive acrylic polymers having volume-average particle size of at least 250 nm, formed during polymerisation in the presence of a surfactant in an emulsion of a mixture of monomers. Disclosed also are versions of labels having a frontal base and a pressure sensitive adhesive, which is one of the versions of the disclosed water resistant acrylic polymers.

EFFECT: disclosed polymers enable to obtain pressure sensitive acrylic based adhesives, which during coating and drying in form of a film become transparent and resistance to whitening when exposed to water.

44 cl, 1 dwg, 2 tbl, 16 ex

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