Composition for sticky materials
(57) Abstract:Usage: sticky materials in electrical engineering, and medicine. The inventive composition comprises, by weight. including : low-molecular polyorganosiloxane with terminal hydroxyl groups (rubber SCTN, SDFN - 50, SCTN 2F - 6) 30 - 70; polyfunctional hydroxyl-containing organosilicon resin (copolymer with SiO2and (CH3)3Si0.5links in their mass ratio of 1 : (0,6 - 1,2), respectively, or a copolymer with SiO2, R3SiO0.5and R1SiO1.5links, where R is methyl, R1- phenyl, in their mass ratio 1 : (0,9 - 0,1) : (0,1 - 0,9) 30 - 70 and the curing catalyst (a mixture of 5 - 75%- aminopropyltriethoxysilane and 95 to 25% of tetraethoxysilane or a product of partial hydrolysis) 8 - 15 100 including a polymeric component. The strength of bonding with the metal at breaking 35 - 300 g/see 2 C. p. F.-ly. The invention relates to organosilicon compositions of cold hardening and can be used for sticky materials used in various fields, in particular in electrical engineering and medicine.Known siloxane adhesive composition, which is obtained by mixing polyorgano the asty silicone oil, containing 50% of 4,4-bis- (vinylethylene)benzoyl peroxide. The resulting mixture is placed on a substrate and inserted into shape for adhesion for 10 min at 165aboutWith under a pressure of 20 kg/cm2. Thus obtained vulcanized film, adhesion to steel is 7.4 to 9.5 kg/cm2 .The disadvantage of this composition is that its curing requires the use of high temperatures.Known organic silicon composition to obtain a sticky adhesive with improved adhesion  . The composition comprises the product of cocondensate at 80-150aboutWith a mixture of 100 wt. including polydimethylsiloxane with terminal silanol groups with a viscosity of 1 to 107FTAs; 15-200 wt. including soluble in benzene resinous copolymer having a molar ratio of units of R3SiO0,5: SiO2= 0.5 to 1 and 2-10 wt. including flaming silicon dioxide with a surface of 100 m2/, To obtain a pressure-sensitive composition of siloxane product is dissolved in a solvent, followed by curing with peroxides.The disadvantages of this composition are also mandatory application of the solvent and the use of elevated temperatures during peroxide Oteri. retinoid polysiloxane end of trimethylsiloxy groups having 2% of the silanol groups and the ratio of CH3SIO, SIS units and SiO2links (0,4-1,2): 1; 25-55 wt. including siloxane rubber, obtained by the reaction of dimethylcyclohexylamine and liquid polysiloxane with terminal HE-groups in the presence of an alkaline catalyst (silanolate potassium): 0.5 to 10 wt. including siloxane cluster compounds of the formula R Si[OSi(OR1)3]2where R is methyl, R1- secondary butyl, resinous silicate-treated hexamethyldisilazane in xylene, isopropanol and the reaction product tetramethylguanidine and 2-ethylhexanoic acid  . The adhesive material has a relatively high ratio of resin to polymer. The composition is mixed with 1 wt. including benzoyl peroxide and applied to aluminum or Teflon strips and subsequent vulcanization by heating at 70aboutC for 15 min and then at 150aboutC for 5 minutes Despite the fact that the vulcanizate compositions possess high adhesive characteristics (adhesion at breaking away from aluminum not less than 650 g/cm), but they cannot be obtained at room temperature and in the absence of solvent. Furthermore, the known arrangement has the obvious is more close to the technical nature of the compositions according to the invention is a composition for adhesive tape composition: 100 wt. including a mixture of 40-75% soluble in benzene retinoid copolymer having 90% of aliphatic radicals and the ratio of units of R3SiO0,5: SiO2= (0,6-0,9): 1, and 25-60% of polyorganosiloxane with terminal hydroxyl groups, 0.1 to 5 wt. hours of vulcanization catalyst (organic peroxide), 5-20 wt. including filler (titanium dioxide, aluminum hydrate, zinc oxide, silicon dioxide, calcium carbonate, asbestos). The composition is applied on an aluminum foil, followed by curing by heating to 150aboutC for 5 min  .The disadvantages of the mentioned songs are the necessity of using a hot-curing and the presence of a solvent.The use of vulcanizing systems that require to obtain adhesive compositions to elevated temperatures (70-150about) restricts the use of this method as on the technology of adhesive compositions, and the nature of the substrate. The solvent has a negative impact on the environment.The technical task of the invention is to provide silicone compositions which combine the property of stickiness with the ability to vulcanizates at room temperature in the absence of solvent.
Low molecular weight poly-
organosiloxane with the end-
new hydroxyl groups 30-70
organic resin 30-70
The curing catalyst 8-15
The invention consists in that at room temperature, conducting the mixture to a homogeneous state linear-dihydroxyphenylethylamine (low-molecular polyorganosiloxane) with hydroxyl-containing polyfunctional organosilicon resin, after which the composition is administered curing catalyst.
Low-molecular polyorganosiloxane with terminal hydroxyl groups of 30 - 70
Polyfunctional hydroxyl-containing organosilicon resin 30 - 70
The specified curing catalyst 8 - 15
2. The composition according to p. 1, characterized in that as a polyfunctional hydroxyl-containing silicone resin contains a copolymer of (CH3)3SiO0,5and SiO2-links in their mass ratio (0,6 - 1,2) : 1 respectively.3. The composition according to p. 1, characterized in that as a polyfunctional hydroxyl-containing silicone resin contains a copolymer with SiO2, R3SiO0,5and R1SiO1,5-links, where R is methyl, R1- phenyl, in their mass zoonosen 1 : (0,9 - 0,1) : (0,1 - 0,9) respectively.
FIELD: rubber industry.
SUBSTANCE: invention, in particular, relates to attaching acrylate rubber to metal during vulcanization and can be used in manufacture of general mechanical rubber goods (e.g. seals) for automobile industry operated under effects of air and working medium at elevated temperatures (gearset). Carcass is successively treated, in the first stage, with adhesive composition containing 2-5% aminopropyltriethoxysilane, 15-25% ethyl alcohol. And deionized water to 100%. In the second stage, treatment is effected with 0.2-0.4% aqueous solution of resorcinol-formaldehyde resin (SF-282) followed by drying at 100-150°C. Consumption of composition in the first and second stages of treatment of carcass achieves 60-80 ml/m2 for each stage.
EFFECT: increased strength of attachment.
FIELD: production of adhesive underlayers (adhesive primers) from compositions on base of organosilanes used for attaching of rubber on base of natural, isoprene, butadiene, butadiene-nitrile, butadiene-styrene, chloroprene and butyl rubber.
SUBSTANCE: proposed composition is single-layer adhesive for hot attaching of rubber on base of fluorine-containing and acrylic rubber to metal in the course of vulcanization. This composition may be used for manufacture of rubber-metal articles in automobile industry, mechanical engineering and other industries. Proposed composition contains 3-aminopropyl-triethyl ethoxy-silane, dimethacrylic ether of triethylene glycol, paraform solution in mono-ethanol amine, ethyl alcohol, glycerin and distilled water.
EFFECT: high strength of attaching rubber mixes to metals at vulcanization; enhanced corrosion resistance, heat resistance and ecological safety; low cost of product.
SUBSTANCE: surface of fibre glass-filled polytetrafluoroethylene is treated with a sodium-naphthalene complex in tetrahydrofuran. The surface is washed and dried. 2-4 wt % solution of 3-aminopropyl triethoxy silane in ethanol is deposited and the surface is dried at 70-90°C.
EFFECT: method ensures high adhesion strength of acrylate and fluoride rubber to the surface of fibre glass-filled polytetrafluoroethylene.
2 tbl, 4 ex
SUBSTANCE: invention relates to an adhesive composition for attaching fluorinated rubber to metal. The adhesive composition contains 3-aminopropyl triethoxy silane, paraformaldehyde-based resin in monoethanolamine, ethyl alcohol, deionised water and additionally glycerine. The adhesive composition is meant for spray-treating fittings and then drying the fittings at temperature 140-150°C with adhesive consumption of 60-80 ml/m2.
EFFECT: adhesive composition is capable of providing sufficient adhesive strength with low content of dry residue.
2 tbl, 3 ex
SUBSTANCE: invention relates to an adhesive composition for mutual attachment of two objects and a method of attaching an article to a substrate and can be used to attach articles to building walls and similar bases. The adhesive composition is double-packed in form of mounting set. The adhesive composition consists of a mixture of an aerobic adhesive substance and a hydrophilic material. The set has two containers for separate storage of the aerobic adhesive substance and the hydrophilic material. The adhesive aerobic substance is silane MS polymers. The method of attaching an object to a base using the adhesive composition involves mixing the aerobic adhesive substance with the hydrophilic substance, attaching the object by pressing a layer of the adhesive composition to the base and hardening the adhesive composition.
EFFECT: invention provides fast hardening of the adhesive layer and easier attachment of objects to each other.
8 cl, 3 dwg
SUBSTANCE: invention relates to chemical industry and production of fire-resistant materials. The composition contains liquid low-molecular weight siloxane rubber, ethyl silicate-40, tetrabutoxytitanium, boric acid and cobalt phthalocyanine.
EFFECT: invention increases fire resistance and wear resistance of coated material, provides a place for connecting components made from said material with resistance to an open flame, high strength and elasticity for a long period of time.
SUBSTANCE: invention relates to hot melt glues that are able to absorb aqueous liquids. Glue comprises from about 10% to about 50% of block-copolymer representing linear or radial copolymer structure of the formula: (A-B)x wherein block A represents polyvinylarene block; block B represents poly(monoalkenyl) block; x means number of polymeric links and represents a whole number equal to 1 or above, and from about 20% to about 80% resin enhancing adhesiveness, and from about 1% to about 60% of polymer absorbing an aqueous liquid. Also, invention relates to absorbing article comprising moisture-penetrable upper layer, moisture-proof protecting layer, absorbing member between upper and protecting layers wherein moisture-penetrable upper layer or moisture-proof protecting layer is attached to absorbing member by the proposed hot melt glue. The prepared thermoplastic gluing material can be used for adhesion joining backings and for conferring additional moisture-absorbing capacity to nonwoven materials.
EFFECT: valuable properties of glue.
19 cl, 1 tbl, 12 dwg, 1 ex
FIELD: process for producing of double-layer thermally shrinkable insulating tape for corrosion protection of steel main pipelines used in various branches of industry.
SUBSTANCE: method involves extruding substrate tape from high pressure polyethylene or copolymer of ethylene and vinyl acetate "Sivilane" with 5-30% content of vinyl acetate groups; performing calendaring; carrying out electronic-chemical modification by irradiating with the use of flow of accelerated electrons until dose of 0.1-1.8 MGy is absorbed; providing uniaxial orientation by 3-10% at temperature of 60-65 C, followed by applying of polymer-bitumen adhesive onto cold substrate tape.
EFFECT: provision for producing of double-layer thermally shrinkable tape with desired strength characteristics as well as thermal shrinkage properties.
2 cl, 1 tbl, 7 ex
FIELD: gluing materials.
SUBSTANCE: invention relates to a method for preparing a pressure-sensitive gluing composition for sticky bands with enhanced heat stability and designated for protection of heated steel surfaces against corrosion. The composition comprises rubber with unsaturated bonds, resinous agent for enhancing stickiness, filling agent, polyisocyanate, vulcanizing agent chosen from the group comprising aromatic dinitroso-compound as a monomer or polymer and comprising from 2 to 6 aromatic rings and at least two nitroso-groups, or aryldioxime, or dithiocarbamate derivative, or alkylphenolformaldehyde resin and, additionally, 2,2,4-trimethyl-6-R-1,2-dihydroquinoline or its polymer wherein R means hydrogen atom (H), alkyl, ethoxyl or phenyl group.
EFFECT: improved and valuable properties of composition.
2 tbl, 7 ex
SUBSTANCE: invention provides thermocontracting multilayer adhesive band, which may be used to insulate metal surfaces as well as insulating materials applied thereon, preferably metal tubes and conductor cable housings both in manufacture and during reparation. Band is comprised of at least (i) radiation-updated polyolefin-based polymer support, (ii) additive selected from group consisting of antioxidant, stabilizer, and tackiness agent, and (iii) adhesive layer based on ethylene/vinyl acetate copolymer and containing aluminosilicate and low-molecular weight polymer based on C3-C6-polyolefines.
EFFECT: enhanced adhesion in site wherein band is joined in overlapped manner and increased mechanical strength of coating.
4 cl, 5 ex
FIELD: chemistry of polymers, chemical technology.
SUBSTANCE: invention relates to a bicomponent polymerazible composition consisting of two components. The first component includes complex of organoborane and amine comprising trialkylborane and one or some compounds comprising at least one heterocyclic fragment with an opening cycle. The second component includes Lewis acid able to initiate polymerization of compounds comprising heterocyclic functionality with opening cycle. These compounds are able to take part in free-radical polymerization wherein heterocyclic fragment with opening ring represents a substituted three-membered ring with oxygen atom as a heteroatom. Also, invention relates to a method for polymerization of abovementioned composition, to method for gluing two or more substrates each with other, to method for modifying a polymer surface of low surface energy, to method for applying cover on substrate using the claimed composition, and to composition for applying a cover comprising abovementioned composition, and to laminate. Invention provides preparing adhesive compositions able providing adhesion to substrates of low surface energy and to glue their to other substrates without carrying out the vast preliminary treatment. The composition possesses improved stability, strength and adhesion at increased temperatures.
EFFECT: improved and valuable properties of compositions.
11 cl, 15 tbl, 81 ex
FIELD: manufacture of self-adhesing films for laying floor coats.
SUBSTANCE: proposed self-adhesing film has carrier layer which is coated with contact adhesive on upper surface facing the floor coat and on lower surface facing the floor. Layer of contact adhesive on upper surface is covered with removable covering anti-skid layer. Carrier layer is made from polymer film.
EFFECT: enhanced reliability in treatment and laying of film; low expenses.
20 cl, 5 dwg
SUBSTANCE: invention relates to stable low-viscosity hot melt adhesive compositions, to special block copolymers used therein, and also to tapes and labels including said compositions. Objective of invention is to provide hot melt adhesive compositions having viscosity by 5% lower or higher than initial value when heated for 24 h at 177°C and having melt viscosity = 80 Pa·s at 177°C. Composition comprises: (a) at least one block copolymer containing at least two terminal polyvinyl-aromatic blocks and at least one core block composed of copolymerized isoprene/butadiene mixtures at weight ratio between 45:55 and 55:45 and having polyvinyl-aromatic content 17-20%, apparent common molecular mass 180000-190000, content of 1,2-vinyl bonds and/or 3,4-vinyl bonds not more than 15 wt% in conjugated diene blocks while bonding efficiency 63 to 80% at weight ratio 40-45% of the total mass of composition; (b) aliphatic/aromatic hydrocarbon resin increasing adhesiveness, containing less than 16 wt % of aromatic structure as measured by H-NMR method, having glass transition temperature (Tg) 30 to 55°C as measured by differential scanning calometry technique, and softening point (Ring & Ball) between 85 and 95°C at weight ratio 45-55% of the total mass of composition; and (c) plasticizer in amount 5-15% of the total mass of composition.
EFFECT: optimized physicochemical characteristics.
3 cl, 4 tbl, 2 ex
FIELD: gluing materials.
SUBSTANCE: invention relates to gluing compositions of constant stickiness and self-gluing materials based on aluminum foil, polymeric films and other backings designated for exploitation aircraft technique, automobile manufacture, ship building and others fields of technique at temperature from -60°C to +80°C. Proposed composition comprises isoprene rubber-3,4-polyisoprene rubber of molecular mass 120000-240000 Da with the content of vinyl links 83-88%, vaseline oil or low-molecular polybutadiene as a plasticizing agent, terpene-phenolic resin as an adhesion additive, and nefras as a solvent. Invention provides enhancing cohesion strength - resistance to dynamic and static shift - and adhesion - strength at separating to aluminum foil and aluminum alloys of the claimed composition, and enhancing shift strength and separating self-gluing material.
EFFECT: improved and valuable technical properties of composition.
3 cl, 3 tbl, 3 ex
SUBSTANCE: device (10) with protected information (16), for example, a code, an identifier, a personal identifying number (PIN -code) or another similar information, consists of item (20) with protected information (16) applied thereto, of opaque protecting sticker (14), concealing protected information (16) and of additional layer (30,32,42,46) applied between item (20) and protected information (16) and containing paint or lacquer layer (30,34,40) applied directly on item (20), at that an area of protecting sticker (14) is less than item area (20), while an adhesion property of additional layer (30, 32, 42, 46) with protecting sticker (14) at least at separate areas exceeds adhesion property of this layer with item (20). Also a method of the said item fabrication is presented.
EFFECT: increase of information protecting level.
36 cl, 5 dwg
FIELD: packaging industry.
SUBSTANCE: invention pertains to labels, more specifically to polymer film stickers, used on containers with use of a water adhesive. The engineering problem is solved by that, the label consists of a polymer outer material with upper and lower surfaces, a porus layer with upper and lower surfaces and a water adhesive, put in contact with the lower surface of the porous layer. The upper surface of the porous layer is located under the outer material. The porous layer has pores with average diameter approximately ranging from 1 nm to 100 nm, while its porosity approximately ranges between 0.1 ml/g and 2 ml/g.
EFFECT: label can be put onto a container using a water adhesive, in which case drying the adhesive and pasting the label to the container takes place after a set period of time.
50 cl, 3 tbl, 74 ex, 11 dwg