Butyral resin sheet containing bifunctional surface modifier

FIELD: chemistry.

SUBSTANCE: invention refers to butyral resin sheets containing bifunctional surface modifier covering sheet surface, to method for making this sheet and to laminated nonshattering glass. Bifunctional surface modifier covers plastificised polymer sheet. Herewith bifunctional surface modifier includes block-resistant segment and compatible segment. The block-resistant segment contains hydrocarbon group with linear hydrocarbon chain, cyclic group or combined linear hydrocarbon chains and cyclic groups. The compatible segment contains sulphonate, sulphatic, carboxylate or phosphatic radical. Method for making polymer sheet involves coating polymer sheet surface with surface bifunctional modifier. Herewith bifunctional surface modifier includes block-resistant segment and compatible segment, including sulphonate, sulphatic, carboxylate or phosphatic radical.

EFFECT: improved blocking resistance of butyral resin sheet with maintaining optical transparency of laminates and sheet adhesion to glass.

15 cl, 4 tbl, 2 ex

 

This description refers to the leaves of the polymer and, more specifically, to sheets of polymer containing polyvinyl butyral having improved resistance to caking, given by the action of a bifunctional surface modifier applied to the surface of the sheet of plasticized polyvinyl butyral.

The level of technology

Plasticized polyvinyl butyral (hereinafter in this document "PVB") is widely used for the manufacture of sheets of polymer for use as an intermediate light transmitting layers in the laminates, such as shatterproof glass or polymer laminates. Shatterproof glass is usually referred to as a transparent laminate comprising a sheet of polyvinyl butyral, enclosed in the form of a "sandwich" structure between the two panes of glass. Shatterproof glass is often used to create a transparent barrier in the openings/holes in the architecture and the automotive industry. Its main function is the absorption of energy, such as caused by the impact of the object, preventing it from entering through the opening/hole, which, therefore, will minimize damage or injury received by objects or persons in surrounded by a shell space. Additives to the composition of the sheet generally include additives to improve grip, (the DOS"), intended for modifying the adhesion of the sheet to the glass, so that you can sustain an appropriate level of adhesion to prevent delamination of the glass cracking and still provide adequate energy absorption upon impact. The sheet of the intermediate layer can also be modified to provide additional advantageous features shatterproof glass, such as attenuation of acoustic noise reduction in the transmittance of UV and/or IR radiation and/or improve the aesthetic appeal of the window openings.

Shatterproof glass is usually obtained by the method in which two layers of glass and an intermediate layer of plastic, such as PVB, collected in a single product in the press pre-pressing, glue obtaining prior laminate and subjected to final processing of obtaining optically transparent laminate. The Assembly phase in a single product includes laying a piece of glass laying on top of it a layer of PVB, the laying of the second piece of glass, and then trimming the excess PVB on the edges of the glass sheets.

An intermediate layer of plastic in the General case is obtained polymer mixing PVB with one or more plasticizers and, optionally, with one or more other ingredients and processing the mixture in the melt with getting Listova what about the paintings, which usually collect and roll for storage and transportation. In the method of laminating to the automobile windshield from the coil usually cut section of the sheet of PVB, and the data cut section is formed into and/or stack to be assembled in a single product. Then cut section is removed from the stack and used for Assembly into a single product in the form of a layered structure together with a rigid substrate (e.g. a glass sheet having special optical quality) so that the surface of the hard substrate and the surface of the cut section was in direct contact and formed a single product Assembly in the form of a laminate for pre-press pressing. Alternatively, this single product Assembly in the form of a laminate can be molded in the result of prokleivanija short cut sections (sections) together with several stiff leaves.

The sheet of plasticized PVB, be it in the form of a roll or in the form of laying in a pile inherent tendency to stick to itself ("sticking") at ambient temperatures, usually occurring before and during the implementation of the method of lamination. It was made many attempts to improve the resistance to adhesion of PVB, including mechanical shaping surfaces of the sheet roughness(for example, embossing), drawing on the surface of the sheet of powder such as sodium bicarbonate, and chemical or physical surface treatment sheets of PVB. Unfortunately, such surface treatment is often the cause of unwanted problems associated with convenience in handling or adhesion to glass. In another common practical option to prevent such adhesion sheet canvas PVB can be proclivity together with another sheet material such as polyethylene, or it can be stored and transported under refrigeration, for example, at temperatures in the range from approximately 5 to approximately 15°C. However, in the case of modifications of standard sheets of PVB, such as canvas sheet of PVB, which is characterized by a high content of plasticizer to ensure the implementation of features improved noise suppression (acoustic), coalescence can occur even when the cooling conditions.

In addition, it was suggested that the introduction of PVB different materials having resistance to sticking. However, the introduction of such materials into the PVB may have a negative impact on the optical properties of the resulting laminate or on the characteristics of adhesion of the sheet of PVB to the glass.

Accordingly, for improved what I resistance of the sheet of PVB adhesion necessary for more advanced methods, which would not have a negative impact on the optical transparency of laminates and characteristics of adhesion to the glass for the resulting sheet of PVB.

Summary

Surprisingly, but at present it was found that in accordance with the present invention is a polymer sheet containing bifunctional surface modifier deposited on the surface of the above-mentioned polymer sheet, resulting in the improved characteristics of resistance to caking, not causing negative consequences for the optical properties and adhesion. In addition, it was found that the properties of resistance to sticking, you can give the surface of the polymer sheet manufacturing method comprising coating the surface of the above-mentioned polymer sheet bifunctional surface modifier. In addition, the present invention includes a laminated safety glass comprising two sheets of glass together with an intermediate layer in the form of a polymer sheet that is located between them, where the polymer sheet contains bifunctional surface modifier applied to the surface of the above-mentioned polymer sheet.

This document describes examples of implementation options sheets of polymer containing bifunctional surface modifiers, Nansen the e on the surface, methods of manufacturing sheets of polymer containing bifunctional surface modifier deposited on the surface, and methods of improving the resistance of the polymer sheets sticking together. In one implementation, the polymer sheet contains polyvinyl butyral, a plasticizer, put into butyral, and bifunctional surface modifier applied on the surface of the plasticized polyvinyl butyral. Bifunctional surface modifier includes a segment giving resistance to caking, and the segment, giving compatibility. The segment, which imparts resistance to caking, includes a hydrocarbon group, such as a linear hydrocarbon chain. The segment, giving compatibility, includes a polar group such as a sulphonate, sulphate, carboxylate or phosphate radical. Therefore, segments, giving resistance to adhesion and compatibility, ensure the modifier the bifunctional nature in the form of resistance to adhesion and compatibility with the polymer sheet, respectively.

A method of manufacturing a polymer sheet includes the processing of the polymer in the melt with a receiving sheet and a coating on the surface of the polymer sheet bifunctional surface modifier, with bifunctional surface modifier includes a segment giving resistance to caking, and segm the NT, giving compatibility. The segment, which imparts resistance to caking, includes a hydrocarbon group, such as a linear hydrocarbon chain. The segment, giving compatibility, includes a polar group such as a sulphonate, sulphate, carboxylate or phosphate radical.

Laminated safety glass consists of two sheets of glass placed between them an intermediate layer in the form of a sheet of polymer, where the polymer sheet contains bifunctional surface modifier applied to the said surface of the polymer sheet, these bifunctional surface modifier includes a segment giving resistance to caking, and the segment, giving compatibility.

Detailed description

Plasticized polymer in the form of a sheet corresponding to the present invention includes bifunctional surface modifier applied to the surface of the polymer sheet. Although the embodiments described below relate to the polymer is a PVB should be understood that the polymer may be any polymer, characterized by a suitable glass transition temperature. Conventional such polymers include polyvinyl butyral, polyurethane, polyvinyl chloride, copolymer of poly(ethylene vinyl acetate), and combinations of the foregoing polymers, and the like. Ufuncs the regional surface modifier improves the resistance of the polymer sheet sticking together and includes the segment, giving resistance to caking, and the segment, giving compatibility. The segment, which imparts resistance to caking, includes a hydrocarbon group, such as a linear hydrocarbon chain. The segment, giving compatibility, includes a polar group such as a sulphonate, sulphate, carboxylate or phosphate radical, which gives a suitable affinity with the polymer sheet.

PVB in General get by known methods azetilirovanie, which include carrying out the reaction with participation of polyvinyl alcohol (PVOH) and Butyraldehyde in the presence of an acid catalyst, followed by neutralization of the catalyst, separation, stabilization and drying of the resin. The polymer typically contains from about 13 to about 30 weight percent (% wt.)) hydroxyl groups in the calculation of the polyvinyl alcohol, and preferably from about 15 to about 22% (wt.) hydroxyl groups when based on polyvinyl alcohol (PVOH). The polymer further comprises up to about 10% (wt.) the residual ester groups, and preferably up to about 3% (wt.) residual ester groups calculated based on polyvinyl acetate, with the balance to 100% acetal, preferably Butyraldehyde, but not including other acetylene group, e.g. the, 2-ethylhexanediol group. Normally, the product PVB is characterized by a molecular weight in excess of approximately 70000 grams of one mole (g/mol). In accordance with the usage in this document, the term "molecular weight" must be understood as the average molecular weight. Details concerning appropriate ways to obtain a PVB specialists in the relevant field are known. PVB is commercially available in Solutia Inc., St. Louis, Missouri resin Butvar™.

The PVB polymer can be added additives to improve its operational characteristics in the final product. Such additives include, but are not limited to: dyes, pigments, stabilizers (for example, ultraviolet stabilizers), antioxidants, and combinations of the preceding additives and the like.

The PVB sheet typically contains from about 20 to 80, and more often from 25 to 60 parts of plasticizer per hundred parts of resin ("h/100 h resin"). The amount of plasticizer influences the glass transition temperature (Tg- glazing temperature) of the PVB sheet. Usually increasing the amount of plasticizer leads to reduction of Tg. In the General case, the PVB sheets are characterized by a value of Tgequal to approximately 30°C or less. The PVB sheets, characterized by the value of Tgless approximately 20°is, often used as acoustic PVB sheets. Commonly used plasticizers are esters of polybasic acid or a polyhydric alcohol. Suitable plasticizers include, for example, triethyleneglycol(2-ethyl butyrate), triethyleneglycol(2-ethylhexanoate), triethylenemelamine, tetraethylorthosilicate, vexillaria, dioctyladipate, hexyltrichlorosilane, mixtures of heptyl and nonradiative, disneylandia, getinvolved, dibutylsebacate, polymeric plasticizers, such as modified oil sabotinova alkyd resins and mixtures of phosphates and adipates, such as described in U.S. patent No. 3841890, and adipate, such as described in U.S. patent No. 4144217. Commonly used plasticizers are also mixed adipate obtained from C4-C9alilovic alcohols and cyclo-C4-C10alcohols described in U.S. patent No. 5013779. The preferred plasticizers are complex With4-C8the esters of adipic acid such as disaccredit.

The PVB polymer and additives as plasticizers subjected to heat treatment and molded to the shape of the sheet. An example of one method of forming the sheet of PVB includes extruding molten resin PVB + plasticizer + additives (hereinafter in this document to "melt") in financial p is Tata push the melt through a slit extrusion head (for example, extrusion head having an aperture which is substantially greater in one direction than the perpendicular direction). An example of another method of forming a sheet of PVB includes the casting of the molten resin or semi-molten resin from the extrusion head to the cushion, the curing of the resin and then removing the hardened resin in the form of a sheet. In either case, the implementation of surface texture on either side or on both sides of a sheet can be adjusted in the modification of the surfaces of the holes of the extrusion head or create texture on the surface of the roller. Other methods of regulation texture sheet include the variation of parameters substances, reagents (e.g., water content in the resin and/or plasticizer, melt temperature, or combinations of the preceding parameters). In addition, the sheet can be molded with the inclusion located at intervals of protrusions that define the temporal irregularity of the surface, facilitating the removal of air from the sheet during the implementation of the methods of lamination, after which elevated temperature and pressure in the method of laminating will cause the tabs plavjatsja in the sheet, thereby resulting in obtaining a smooth end surface. In any case i.e. monitoring) reference and extruded sheets are usually characterized by a thickness in the range from about 0.3 to about 2.5 millimeters (mm).

Bifunctional surface modifier is preferably applied to the surface of the PVB sheet in the form of a coating, and it includes the segment, giving resistance to caking, and the segment, giving compatibility. Examples of implementation options modifiers include alkylbenzenesulfonate (RC6H4SO3M), alkyl sulphonates (RSO3M), alkyl sulphates (ROSO3M), alkylcarboxylic (RCOOM), polyalkoxyalkyl (R(OCH2CH2)nOCH2The SOOMA) and esters alkylphosphoric acid (ROPO3M2); where M represents hydrogen or a metal cation (e.g. sodium, potassium, magnesium, calcium and the like)or ammonium ion, R represents an alkyl group, and n is the number of duplicate elementary units has a value >1. Preferably the modifier includes at least one sulphonate radical. In the example, the preferred embodiments shown next segment, which imparts resistance to caking, represents X and the segment, giving compatibility is a sulphonate group having a positively charged counterion Y that is in the position of sulfate groups (-SO3-Y). The resulting structure has the form

X-(-SO3-)-Y,

where X represents a hydrocarbon group, and Y represents the FDS is th hydrogen, ion ammonium or alkali metal ion. In particular, the hydrocarbon group is an aliphatic group, an aromatic group or a combination of aliphatic and aromatic groups (for example, a linear hydrocarbon chain, cyclic group (for example, benzyl group), or a combination)containing at least about 8 carbon atoms, and more preferably from about 8 to about 50 carbon atoms. Preferably imparts resistance to sticking of the segment X is alifaticheskii-aromatic compound which has a molecular structure that gives the sheet of polymer suitable characteristics of resistance to caking and has the form

where R represents a linear hydrocarbon chain containing from about 2 to about 44 carbon atoms.

On the other hand, the segment of the modifier, giving compatibility (for example, -SO3Y) has a degree of affinity with the PVB sheet, sufficient to make the modifier degree of compatibility with the PVB sheet to prevent or at least minimize the occurrence of adverse effects on the optical characteristics of the PVB sheet while simultaneously effective to improve the resistance of the sheet of PVB adhesion. In particular, a suitable p is regular group show affinity with PVB sheet, sufficient to give the modifier can form on the surface of the PVB thin homogeneous coating in such a way as to minimize the tendency for the dispersion of light as it passes through the PVB.

Compounds preferred for use as bifunctional surface modifiers are alifaticheskii-aromatic sulfonates. Particularly preferred are dodecylbenzensulfonate acid (hereafter in this document referred to "DSH"), which is described by the formula

and sodium and magnesium salts dodecylbenzenesulfonic acid (hereafter in this document referred to “DSNa” or “DSMg”), an example of one possible implementation of which is described by the formula

and that can be used in combination with DSH.

Examples of methods of applying bifunctional surface modifier on the surface of the PVB sheet include, but are not limited to: physical application of the modifier on the surface of the sheet. Options physical modifier application include, but are not limited to: methods of coating by spraying, methods of immersion (dipping), methods of coating by way of the deep is the first printing and the like. In one example of the method of coating according to the method of spraying the modifier is administered (e.g., dispersed or dissolved in a liquid carrier, a finely pulverized and releasing at least part of at least one side of surfaces of the PVB sheet. The carrier may be water or may contain solvent (e.g. ethanol, methanol, acetone, metaliteracy ketone, a combination of the foregoing solvents, and the like). After the deposition of the PVB sheet carrier evaporates, leaving the modifier applied to the surface of the PVB sheet. The concentration of modifier in the carrier should be sufficient to achieve the desired concentration of the modifier on the surface of the sheet. In a typical method of spraying the concentration of the bifunctional surface modifier in the media is in the range from about 0.1 to about 40% (wt.) when calculating the total mass of the liquid.

In one example variant of implementation of the method of immersing the PVB sheet is immersed in water or solvent liquid containing the modifier, so that after removing the sheet volatilization of the carrier sheet surface had a floor formed by the modifier. In the method of immersing the concentration of modifier in the carrier is preferably in the range from about 0.01 to is about 20% (wt.), more preferably from about 0.05 to about 5% (wt.), and even more preferably from about 0.1 to about 2% (wt.).

In one example variant of implementation of the method of coating according to the method of gravure printing bifunctional surface modifier is administered (e.g., dispersed or dissolved in a liquid carrier and the liquid carrier is transferred onto the sheet of polymer by using an apparatus for applying coatings by the method of gravure printing. After that, the medium from the surface of the polymer sheet is removed, e.g. by evaporation.

The resulting sheet of PVB containing bifunctional surface modifier applied to it, characterized by the number of adhesion of at least about 50%, preferably at least about 70%, and more preferably at least about 90% smaller numbers adhesion of the polymer sheet containing the PVB resin and not containing bifunctional surface modifier. The transparency of the PVB sheet containing bifunctional surface modifier applied to it, you can determine the measurement result of the number of turbidity, which represents the percentage of transmitted light that is scattered so that its direction deviates more than a specified in the ol from the direction of incident beam, and which can be determined in accordance with ASTM D1003. Preferably the number of turbidity largest is less than about 3%, more preferably less than about 2%, and most preferably less than about 1%.

Adhesion of the PVB sheet containing bifunctional surface modifier, printed on its surface, the presence of a bifunctional surface modifier essentially no influence. Preferably the adhesion value (quantitative trends PVB sheet to stick to the glass) is within about 20%, more preferably within about 10%, and most preferably within about 5% of the adhesion of the PVB sheet not containing bifunctional surface modifier applied to the surface. Adhesion can be measured, for example, as a result of testing the adhesion strength when hitting, which allows to measure the strength of adhesion between the sheet of PVB and glass.

EXAMPLES

In the examples used the following tests:

1. The adhesive beats

Samples of laminates with two layers of glass were obtained using standard conditions lamination in an autoclave. The laminates were cooled to about 17.8 mln°C and manually subjected nanese the Oia shock, striking them with a hammer for breaking the glass. After that, all the broken glass, not adhered to the PVB sheet was removed, and the amount of glass remaining adhered to the PVB sheet were visually compared with a set of standards. Standards consistent with the scale at which the glass remained adhered to the PVB sheet in varying degrees. In particular, when the standard attack, corresponding to zero, no glass, stuck to the sheet of PVB, not left. When standard strikes corresponding to 10, 100% of the glass remains adhered to the PVB sheet.

2. Adhesion

This test measured the tendency of the PVB sheet to stick to itself. In this test two rectangular strips of foils cut and put together to form a fully overlapping pairs. The top sheet of each pair was glued to the piece of tape with the appropriate size. A couple of films have centered between two steel plates, and product Assembly was subjected to pressure 69 kPa at a temperature of 7°C for 24 hours. After this strip was taken away millimetre from each other at a 90-degree test flaking when using the apparatus for testing a peeling rate of exfoliation, equal to 84 inches per minute. Quantitative characteristics for the strength of adhesion was obtained in the form of pounds per linear inch (lbs/inch).

3. turbidity (transparency)

This test measured the transparency of the laminate obtained by using a sheet of PVB, and the test was performed in accordance with ASTM D1003-61 (Re-approved 1977) - A Procedure - using Illuminant C, the angle of the observer 2 ° and apparatus for the measurement of turbidity was Hazemeter, Model D25, which is available in the company Hunterlab.

EXAMPLE 1: Manufacture of PVB sheet

The composition of plasticized PVB, designed to produce sheets of PVB containing 100 mass parts PVB resin, characterized by a content of hydroxyl 16,3% (wt.) in calculating the PVOH, 52 of triethyleneglycol(2-ethylhexanoate) and other additives, including additives, extra grip, absorbers of ultraviolet radiation, antioxidant, and other ingredients were subjected to preliminary mixing, the use of high-intensity mixer. Then plasticized composition was melted in the extruder and in molten form pushed through the slotted extrusion head, characterized by the presence at its front end a rectangular orifice of the extrusion head, which is limited by a pair of opposite cheeks of the extrusion head. The melt temperature was equal to approximately 180°C. the thickness of the extruded sheet was approximately 30 mils (0.76 mm). Each side of the sheet had a rough surface, to the which during the implementation of the method of laminating made it possible to remove air from the interfacial surface between the sheet and the glass.

EXAMPLE 2: the coating on the PVB sheet by immersion

The coating on the PVB sheet by immersing spent in the immersion of the original sheet of PVB in the appropriate aqueous solution containing its corresponding bifunctional surface modifier, at room temperature over a period of time ranging, for example, 20 seconds, followed by drying. Some of the samples after coating by immersion was immersed in a bath of clean water. Some samples of the coating in immersion was applied at elevated temperatures. Samples having the coating applied by immersion, and control samples were kondicionirovanie until the moisture content of 0.35% in the conditioning. Examples of conditions of the coating by immersion, including the type of bifunctional modifier surface (surface modifier), solution concentration, immersion time, and the like, are presented in tables 1-4, respectively, together with the results of the test when hitting on adhesion and turbidity for samples having the coating applied by immersion.

Table 1 illustrates the results of testing when hitting on adhesion and turbidity for samples having the coating applied on spaceborne when using aqueous solutions of sodium salt polystyrenesulfonate acid (PSSNa), DSH or DSNa, followed by a second immersion in water for a time duration equivalent to the specified time of the dive.

Table 1
Sample numberThe surface modifierConcentration (% (wt.)The immersion time, (sec)The number of adhesion (lbs./
inch)
% turbidityThe adhesive bumps
1. Control---2,000,506,6
2.PSSNa32,0601to 1.860,456,6
3.DSH2,06010,060,406,5
4.DSNa2,0 6010,750,503,2
5. Control---2,960,406,8
6.DSH2,06010,420,304,8
7.DSH2,04010,270,306,5
8.DSH2,02010,480,309,0
9.DSH2,0201,20,480,309,0
10.DSH1,02010,109,0
11.DSH0,52010,140,307,3
1Followed by a second immersion in water for a time duration equivalent to the specified time of the dive.
2The temperature of the solution was increased to 40°C.
3PSSNa denotes sodium salt polystyrenesulfonate acid.

Table 2 illustrates the results of testing when hitting on adhesion and turbidity for samples having the coating applied by the method of immersion when using aqueous solutions DSH characterized by a variety of concentrations, at different times of immersion at room temperature.

Table 2
Sample numberThe surface modifierConcentration (% (wt.)The immersion time, (sec)The number of adhesion (lbs./
inch)
% turbidityThe adhesive beats
12. Control---4,140,407,5
13.DSH2,0600,100,309,0
14.DSH2,0200,120,409,0
15.DSH1,0600,150,409,0
16.DSH1,0200,240,409,0
17.DSH0,5600,400,309,0
18.DSH0,5 200,510,408,8

Table 3 illustrates the results of testing when hitting on adhesion and turbidity for samples having the coating applied by the method of immersion when using aqueous mixtures DSH/DSNa with a concentration of 1% (wt.), characterized by a variety of mass ratios DSH/DSNa, during different times of immersion at room temperature.

Table 3
Sample numberThe surface modifierConcentration (% (wt.)The immersion time, (sec)The number of adhesion (lbs./
inch)
% turbidityThe adhesive bumps
19. Control---2,800,506,2
20.100% DSH/
0% DSNa
1,0600,030,40 9
21.100% DSH/
0% DSNa
1,0200,040,409
22.75% DSH/
25% DSNa
1,0600,040,409
23.75% DSH/
25% DSNa
1,0200,070,609
24.50% DSH/
50% DSNa
1,0600,050,404,5
25.50% DSH/
50% DSNa
1,0200,060,506,5

Table 4 illustrates the results of testing when hitting on adhesion and turbidity for samples having the coating applied by the method of immersion when using aqueous solutions of a mixture of DSH/DSNa (or DSMg) with a concentration of 1% (mA is.), characterized by a variety of mass ratios DSH/DSNa (DSMg), for 20 seconds at room temperature.

Table 4
Sample numberThe surface modifierConcentration (% (wt.)The immersion time, (sec)The number of adhesion (lbs./
inch)
% turbidityThe adhesive bumps
26. Control---3,500,66
27.100% DSH/
0% DSNa
1200,050,59
28.75% DSH/
25% DSNa
1200,050,59
29.50% DSH/
50% DSNa
120 0,080,57,8
30.25% DSH/
75% DSNa
1200,070,53
31.5% DSH/
95% DSNa
1200,080,50
32.0% DSH/
100% DSNa
1200,090,50
33.75% DSH/
25% DSMg
1200,070,59
34.50% DSH/
50% DSMg
1200,050,59
35.25% DSH/
75% DSMg
1200,100,5
36.5% DSH/
95% DSMg
1200,280,50
37.0% DSH/
100% DSMg
1200,230,50
38. Control---to 2.060,46,5
39.20% DSH/
80% DSMg
1200,020,31,5
40.40% DSH/
60% DSNa
1200,040,48
41.30% DSH/
70% DSNa
1200,040,37,5
42. 20% DSH/
80% DSNa
1200,070,36,5
43.10% DSH/
90% DSNa
1200,220,35,5

The above-described embodiments of the PVB sheets containing bifunctional surface modifier applied on their surfaces, are suitable for use in typical applications shatterproof laminated glass with an intermediate layer of PVB. In addition, the above-described implementations due to the modification of the surfaces of the sheet are particularly suitable for use in the manufacture of acoustic products with an intermediate layer of PVB without prokleivanija.

The above-described sheet of PVB is also characterized by the presence of several advantages in comparison with the PVB sheet which does not contain bifunctional surface modifiers applied on their surface. First, the PVB sheet containing bifunctional surface modifier applied on its surface, characterized by a significantly reduced tendency to stick together while maintaining sufficient) the ski quality and appropriate characteristics of adhesion to glass, when the sheet is introduced into the laminated shatterproof glass. Therefore, due to their low tendency to adhesion of the PVB sheet can be stored and transported at reduced cooling needs or prokeivanie. Secondly, because the bifunctional surface modifiers, described above, are at least partially compatible with PVB, there is no need for additional stages of processing, such as cleaning sheet for removing powder. Specialist in the relevant field will readily become apparent and other benefits.

Although the invention has been described with reference to the examples of implementation options, specialists in the relevant field should understand that there can be made a variety of changes, and its elements can be replaced by equivalents without deviating from the scope of claims of the invention. In addition, you can perform many modifications to adapt a particular situation or material to the provisions of the invention without deviating from the substantial amount of its claims. Therefore, it is assumed that the invention is not limited to a particular variant of the implementation described in the best mode contemplated for the implementation of this invention, but that the invention will include all implementations falling within scope of the claims appended claims.

1. The polymer sheet for laminated shatterproof glass containing bifunctional surface modifier applied on the above-mentioned polymer sheet, these bifunctional surface modifier includes a segment giving resistance to caking, and the segment, giving compatibility, while the polymer is a plasticized polyvinyl butyral, and the aforementioned segment, giving compatibility, includes sulphonate, sulphate, carboxylate or phosphate radical, with the above segment, which imparts resistance to caking, includes hydrocarbon group containing a linear hydrocarbon chain, cyclic group, or a combination of linear hydrocarbon chains and cyclic groups, and optionally the specified segment, giving compatibility; includes the counterion, which represents sodium.

2. The polymer sheet according to claim 1, in which the aforementioned hydrocarbon group contains from about 8 to about 50 carbon atoms.

3. The polymer sheet of claim 1, wherein the aforementioned cyclic group include benzyl group.

4. The polymer sheet according to claim 1, where the polymer is a polyvinyl butyral resin containing from about 13 to about 30 wt.% hydroxyl groups in the calculation of the polyvinyl alcohol.

5. The polymer sheet of claim 1, wherein the polymerase is ω is plasticized polyvinyl butyral, when the plasticizer is contained in an amount of from about 20 to 80 hours of plasticizer per 100 hours of tar.

6. The polymer sheet according to claim 5, in which the polymer is plasticized polyvinyl butyral, and the plasticizer is contained in an amount of from about 25 to 60 hours of plasticizer per 100 hours of tar.

7. The polymer sheet according to claim 5, in which the polymer is plasticized polyvinyl butyral and a plasticizer selected from the group consisting of triethyleneglycol(2-ethylbutyrate), triethyleneglycol(2-ethylhexanoate), triethylenemelamine, tetraethylorthosilicate, vexillata, dioctyladipate, hexyltrichlorosilane, mixtures of heptyl and nonradiative, diisononylphthalate, heptylaniline, dibutylsebacate and mixtures thereof.

8. The polymer sheet according to claim 1 where the above-mentioned bifunctional surface modifier includes sodium salt dodecylbenzenesulfonic acid.

9. A method of manufacturing a polymer sheet, in which the said method comprises processing the polymer in the melt with the receiving sheet, and applying a bifunctional surface modifier on the surface of the above-mentioned polymer sheet, these bifunctional surface modifier includes a segment giving resistance to caking, and the segment, giving compatible; polymer submitted is a plasticized polyvinyl butyral; these segment, giving compatibility, includes sulphonate, sulphate, carboxylate or phosphate radical, and the aforementioned segment imparts resistance to caking, includes hydrocarbon group containing a linear hydrocarbon chain, cyclic group, or a combination of linear hydrocarbon chains and cyclic groups; advanced segment, giving compatibility, includes a counterion, which represents sodium.

10. The method according to claim 9 in which the said application mentioned bifunctional surface modifier on the surface of the above-mentioned polymer sheet is performed with the use of a technique selected from the group consisting of the methods of coating by spraying, immersion techniques, methods of coating by the method of gravure printing, and combinations of the above-mentioned methods.

11. The method according to claim 10 where the above-mentioned method of coating according to the method of spraying includes the introduction of the above-mentioned modifier in liquid media, fine grinding a mixture of the above-mentioned modifier and the above-mentioned liquid medium, the production of the finely ground mixture to the said polymer sheet and the volatilization mentioned liquid carrier from the surface of the above-mentioned polymer sheet.

12. The method according to claim 10, in which said method includes immersion in rugenge mentioned sheet of polymer in the liquid, containing the aforementioned bifunctional surface modifier, removing the above-mentioned polymer sheet and the volatilization mentioned liquid carrier from the surface of the above-mentioned polymer sheet.

13. The method according to claim 10 where the above-mentioned method of coating according to the method of gravure printing includes the introduction mentioned bifunctional surface modifier in liquid media, the transfer of a liquid medium containing the aforementioned bifunctional surface modifier, the above-mentioned polymer sheet using the apparatus for applying coatings by the method of gravure printing, and removing said carrier from the surface of the above-mentioned polymer sheet.

14. The method according to claim 9 where the above-mentioned bifunctional surface modifier includes sodium salt dodecylbenzenesulfonic acid.

15. Laminated safety glass comprising two sheets of glass placed between them an intermediate layer in the form of a sheet of polymer in which the polymer sheet contains bifunctional surface modifier applied on the above-mentioned polymer sheet, these bifunctional surface modifier includes a segment giving resistance to caking, and the segment, giving compatibility, while the polymer is a plasticized polyvinyl butyral; these segments is, giving compatibility, includes sulphonate, sulphate, carboxylate or phosphate radical, and the aforementioned segment, which imparts resistance to caking, includes hydrocarbon group containing a linear hydrocarbon chain, cyclic group, or a combination of linear hydrocarbon chains and cyclic groups; advanced segment, giving compatibility, includes a counterion, which represents sodium.



 

Same patents:

FIELD: chemistry.

SUBSTANCE: invention refers to butyral resin sheets with improved blocking resistance. Butyral resin sheet contains bifunctional surface modifier covering plastificised butyral resin sheet surface. Bifunctional surface modifier includes block-resistant segment and compatible segment. Herewith bifunctional modifier includes amphiphilic block polymer polyethylene-poly(ethylene glycol) of general formula CH3CH2(CH2CH2)m-(OCH2CH2)mOH, where m is approximately 5 to 24, and n is approximately 3 to 30. Method for making polymer sheet with improved blocking resistance includes processing polymer in melt thus making a sheet, and coating polymer sheet surface with surface bifunctional modifier. Laminated nonshattering glass contains two glass sheets and intermediate polymer sheet covered with bifunctional surface modifier.

EFFECT: improved blocking resistance of butyral resin sheet with maintaining optical transparency and glass adhesion while butyral resin sheet is introduced in laminated nonshattering glass.

16 cl, 5 tbl, 4 ex

FIELD: inorganic chemistry.

SUBSTANCE: invention concerns film production applied as intermediate layer for triplexes. This film is made of composition containing plasticizer based on partially acetalized polyvinyl alcohols. This invention also covers triplex with at least one glass and specified film adjacent to this glass, and method of transportation and/or storage of rolled film. Task of this invention lies in: production of film characterized by required superior adhesion to glass, as well as reduced self-adhesiveness, i.e. blocking tendency; as well as provision of optimal method of transportation and/or storage of specified film. Assigned task is solved due to the fact that composition used for specified film production contains as an addition agent one or more pentaeritrit ethers of specified structural formula. This addition does not influence film adhesion to glass, however sufficiently reduces self-adhesiveness. Method of transportation and/or storage of rolled film is carried out at temperature at least 20°C. That substantially reduces necessity of film cooling for stacking or rolling-on.

EFFECT: production of film characterized by higher adhesion to glass and reduced self-adhesiveness, that is blocking tendency, production of triplex with this film, as well as provision of optimal method of transportation and/or storage of this film.

10 cl, 6 tbl, 16 ex

FIELD: chemical industry; other industries; production of the absorbing the infrared radiation butyric resin composition, the layer produced out of the composition and the multilayered glass containing the layer.

SUBSTANCE: the invention is pertaining to the absorbing the infrared radiation butyric resin composition, which consists of the reprocessing in the smelt of the butyric resin containing for absorption of the IR radiation dispersed in it (i) lanthanum hexaboride in amount from 0.005 up to 0.1 mass % in terms of the composition mass, or (ii) the mixture of lanthanum hexaboride in amount from 0.001 up to 0.1 mass % in terms of the composition mass, and at least, one component selected from the mixed indium oxide and stannous and the mixed antimony oxide and stannous. At that the mixed indium oxide and stannous and-or the indicated mixed antimony oxide and stannous are present in the indicated mixture in amount from 0.05 up to 2.0 mass % in terms of the composition mass. The invention is also pertaining to the sheet layer made out of the butyric resin composition, which absorbs the IR radiation, and to the multilayered glass containing two sheets of the glass with the placed between them the sheet layer made out of the butyric resin composition absorbing the IR radiation. The butyric resin sheet layer is used for the motor cars glassing, for the architectural glassing, for production of the sight-seeing glass coatings and for production of the protective glass for paintings, documents, etc., and it also absorbs the energy and prevents destruction.

EFFECT: the invention ensures production of the butyric resin sheet layer used for the motor cars glassing, the architectural glassing, for production of the sight-seeing glass coatings, production of the protective glass for paintings, documents, etc., absorption of the energy and prevention of destruction.

16 cl, 7 ex, 2 dwg

FIELD: polymer materials.

SUBSTANCE: invention relates to a method of producing plasticized polyvinylbutyrals, to use thereof for molding, in particular when manufacturing films employed as interlayer in laminated protective spectacles. Plasticized polyvinylbutyral contains, as plasticizer, at least one alkylene benzoate and/or polyalkylene glycol benzoate mixed with at least one further plasticizer from group consisting of aliphatic diol esters or (poly)alkylene glycol esters or, respectively, esters of (poly)alkylenepolyols with aliphatic carboxylic acids and diesters of aliphatic or aromatic dibasic C2-C18-carboxylic acids with aliphatic C4-C12-alcohols. Described are also a method for production of above-defined polyvinylbutyral, utilization of polyvinylbutyral to produce compositions for molding and to obtain films, as well as a film containing indicated polyvinylbutyral. Films thus obtained show adhesive strength at a level of 8.5 in Pummel F scale, opacity 0.06, color variation factor 0.3, melt flow rate MFR 190 at a level of 3.55 g/10 min.

EFFECT: improved characteristics of films.

11 cl, 3 dwg, 5 tbl, 7 ex

FIELD: polymer materials.

SUBSTANCE: sound-insulation film for manufacturing layered shatterproof glasses contains 0.15-0.8 % water; 50-79.85% partially acetylated polyvinyl alcohol having 10-25% vinyl alcohol groups and 0-20% acetate groups; and 20-49.85% plasticizer. The latter contains 30 to 70 % by weight of (based on the total weight of plasticizer mixture) one or several poly(alkylene glycols) from group including poly(alkylene glycols) having general formula HO-(R-O)nH wherein R represents ethylene, propylene, or butylene and n>5; block copolymers from ethylene and propylene glycols having general formula HO-(CH2-CH2-O)n-(CH2-CH(CH3)-O)mH wherein n>2, m>3, and (n+m)<25; derivatives of block copolymers from ethylene and propylene glycols having general formulas R1O-(CH2-CH2-O)n-(CH2-CH(CH3)-O)mH and HO-(CH2-CH2-O)n-(CH2-CH(CH3)-O)m-R1 wherein n>2, m>3, and (n+m)<25 and R1 is organic residue with 1 to 15 carbon atoms; poly(alkylene glycol) derivatives having general formula R1-O-(R2-O)nH wherein R2 represents ethylene, propylene, or butylene and n ≥ 2, in which hydrogen atom of two terminal hydroxyl groups of poly(alkylene glycol) is substituted by organic residue R1; and at least one plasticizer - the rest.

EFFECT: improved sound-insulation capacity of film even at ambient temperature.

1 dwg, 2 tbl, 11 ex

FIELD: organic chemistry, polymers, chemical technology.

SUBSTANCE: invention relates to new high-molecular cross-linked polyvinyl butyrals, to a method for their synthesis and to their applying also. Invention describes high-molecular cross-linked polyvinyl butyrals prepared by cross-linking polyvinyl butyral with diethyl- and/or dimethyl oxalate. Method for preparing indicated polyvinyl butyrals involves addition of a cross-linking agent and, if necessary, a plasticizing agent to the parent polyvinyl butyral, homogenization of the mixture and thermal cross-linking at temperature from 80°C to 280°C. Polyvinyl butyrals prepared by such method are components of films useful for manufacturing the triplex. Films made by using such polyvinyl butyrals show the rupture strength value at the level 29 N/mm2 and glasses made of such films show stability against the impact in F- and Sn-directions as 8 and 4, respectively.

EFFECT: improved preparing method, improved and valuable properties of films.

9 cl, 2 dwg, 13 ex

The invention relates to the field of recording information on the basis of the polymerization reaction, namely holographic recording

Polymer composition // 2182580
The invention relates to polymer compositions intended for the manufacture resistant to fogging of the film and to obtain a concentrate hydrophilic additives used in the manufacture of such films

Polymer composition // 2100390
The invention relates to the field of phenolic and related compositions, filled with chopped layered materials based on cotton fabrics, in particular the crushed waste PCB, and intended for the manufacture of electrical equipment with high reliability

FIELD: metallurgy.

SUBSTANCE: invention concerns method for composite material receiving, including padding, containing stratum of thermoplastic compound, at that padding contains deposited from vapor phase stratum, containing aluminum or aluminum oxide or silicon oxide, including stage of deposition from vapor phase of triazine-bearing compound to padding at pressure 1x10-6 Pa or higher, but not less than 1000 Pa. During the deposition stage temperature of padding is in the range between -15°C and +90°C. Triazine-bearing compound corresponds melamine, melam, melem, melon or its mixtures. Padding before deposition stage from vapor phase is treated by plasma, corona discharge, ultraviolet radiation, electron-beam radiation or reactionary gas.

EFFECT: creating of effective method of composite material receiving.

11cl, 1 ex

FIELD: inorganic chemistry.

SUBSTANCE: invention relates to the method of forming thin films of oxide on the surface of carrying base, a device for forming thin films (variants), and thin film forming process monitoring methods, and can be used during production of packages in different industries. A gaseous mixture containing gaseous monomer and an oxidising reaction gas is converted into plasma by changing the ratio of the gaseous monomer flow value to the reaction gas flow value so that the said ratio is within a set range of over 0 to 0.05. This allows to form thin films with gas protection properties stably and without deviations. In the process of thin film formation, it is determined if a thin film with the required surface properties is formed, by measuring the intensity of the α line of hydrogen and the oxygen emission, which are radiated by the plasma during the thin film formation. The measured values are compared to the corresponding reference intensity values, at which thin films with required layer properties were obtained. The corresponding devices are also developed for the forming and monitoring methods.

EFFECT: formation of thin films with gas protection properties.

17 cl, 11 dwg, 19 ex, 6 tbl

FIELD: polymer materials.

SUBSTANCE: invention relates to synthetic and natural water-soluble polymers coated with liquid glass imparting improved solubility if water and aqueous solutions. Invention is directed to modifying water-soluble polymers with minimum amounts of modifying agent so as that they could be reliable dissolved under complicated conditions. Objective is achieved by applying liquid soda glass onto water-soluble polymers.

EFFECT: enhanced water solubility of polymers.

20 cl, 2 ex

FIELD: application of coat on surfaces of articles made from polymer scintillation materials.

SUBSTANCE: proposed method includes mechanical treatment of surface of article, degreasing of this surface, treatment of this surface and drying in air. Surface of article is subjected to treatment with mixture of solvent of aromatic and chlorinated hydrocarbon and precipitating agent of lower monatomic alcohol and aliphatic hydrocarbon at ratio of 1: (1-2.5) continued for 25-35 s, after which article is washed in precipitating agent for 60-120 s for effective light reflection and maximum light collection; as a result, light efficiency is increased by 1.1-1.2 times.

EFFECT: enhanced technology of method; reduction of time required for forming the coats.

1 tbl, 6 ex

FIELD: polymer materials.

SUBSTANCE: method comprises stage E according to which surface of products is treated, under environmental conditions, with organic solution composed of organic peroxide and organic solvent (solution S). Solution S further contains UV stabilizer or additional stage E' following stage E, in which surface of product is treated with organic solution other than solution S, which contains UV stabilizer and organic solvent (solution S').

EFFECT: facilitated restoration of polymer coatings.

12 cl

FIELD: cleaning agents.

SUBSTANCE: manufacture of self-cleaning surfaces with bulges and deepenings, wherein bulges are spaced at 0.1 to 200 μm intervals and their heights range between 0.1 and 100 μm, is accomplished by applying and then drying solution, distillation, or emulsion containing hydrophobic material providing surface capable of self-cleaning upon evaporation of solvent, after which applied material is removed with detergents. Hydrophobic material is selected from wax and waxy substances such primary or secondary alcohols and alkanediols.

EFFECT: facilitated cleaning procedure.

7 cl, 4 ex

The invention relates to the qualitative and quantitative composition of composite materials for the combination of crumb rubber, which is obtained by grinding waste rubber with other ingredients such rubber mixtures, which are intended for forming of new rubber products

The invention relates to compositions for improving operational characteristics of polymeric coatings, materials, and composites and can find application in the chemical industry and in mechanical engineering

The invention relates to a composition for etching rubber surface before metallization and can be used in mechanical engineering, in particular, the coating composition, anti-friction protective polymeric coatings on mechanical rubber goods (MRG) by the electroplating method

FIELD: chemistry.

SUBSTANCE: invention refers to butyral resin sheets with improved blocking resistance. Butyral resin sheet contains bifunctional surface modifier covering plastificised butyral resin sheet surface. Bifunctional surface modifier includes block-resistant segment and compatible segment. Herewith bifunctional modifier includes amphiphilic block polymer polyethylene-poly(ethylene glycol) of general formula CH3CH2(CH2CH2)m-(OCH2CH2)mOH, where m is approximately 5 to 24, and n is approximately 3 to 30. Method for making polymer sheet with improved blocking resistance includes processing polymer in melt thus making a sheet, and coating polymer sheet surface with surface bifunctional modifier. Laminated nonshattering glass contains two glass sheets and intermediate polymer sheet covered with bifunctional surface modifier.

EFFECT: improved blocking resistance of butyral resin sheet with maintaining optical transparency and glass adhesion while butyral resin sheet is introduced in laminated nonshattering glass.

16 cl, 5 tbl, 4 ex

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