SU1098948A1 - Adhesive composition for adhesive tapes - Google Patents

Abstract

ADHESIVE COMPOSITION FOR adhesive tape comprising a chlorinated natural rubber, a copolymer of butyl (meth) acrylate with methacrylic acid or an amide of methacrylic acid, a plasticizer, modifisch1ruyuschuyu additive polyether and a solvent, characterized in that, in order to increase adhesion and reduce cold flow, it comprises as polyether, polyether of cyanuric acid with phenylglycidyl ether and maleic anhydride with a molar ratio of the indicated starting components of 0.1: 0.6: 0.3, respectively, as a modi, f I. SteV, 4, ,,, .. cessative supplement - perchlorovinyl, phenol-formaldehyde resin, rosin or their mixture and additionally melamine cyanurate in the following ratio, wt.%: Chlorinated natural rubber 20.0-35.8 Perchlorovinyl resin, phenol-maldehyde resin , rosin or a mixture of them 2,0-8,0 Plasticizer 15,0-31,2 Butyl (meth) acrylate copolymer with methacrylic acid or amide (L methacrylic acid 2, 0-8.0 Melamine cyanurate 0.5-4.0 Polyester cyanuric acid with phenylglycidyl ether and: maleic anhydride with molar the introduction of these 00 source components of 4 tov 0.1: 0.6: 0.3 0.5 to 4.0 Solvent Remaining 00

Description

The invention relates to the preparation of rubber-based compositions used in the manufacture of adhesive tapes for temporarily securing wires when hidden wired to a brick, plaster, stucco, asbestos, concrete base at normal and elevated temperatures.

Until now, gypsum, alabaster, metal staples, nails were used to temporarily fix the wires, which is an inefficient and time-consuming process.

Adhesive compositions are known for fastening various materials.

Known adhesive GIPK-219 based on chloroprene rubber, modified phenol-formaldehyde resin in a mixture of solvents 1.

However, the adhesive does not have the necessary adhesive strength at normal and elevated temperatures to concrete, asbestos, brick and other building materials.

Known adhesive composition for adhesive tape HIPC-225, containing chlorinated natural rubber, perchlorovinyl, phenol-formaldehyde resins, rosin, plasticizer and solvent 2.

However, the adhesive composition does not have sufficient strength, cold-melting strength at both normal and elevated temperatures.

The closest in technical essence and result to the invention is the adhesive composition for adhesive tapes 3, comprising, in May.%:

Chlorinated natural rubber 2.5-6.3 Modifying additives:

perchlorovinyl resin 12.5-20 rosin 10-12,5

plasticizer 19-31,3 Acrylic resin (copolymer of butyl methacrylate with methacrylic acid or with amide of methacrylic acid) 2.55-5.0

Complex polyester based on aliphatic dicarboxylic acid and polyhydric alcohol 1.6-2.5 Filler1-2.55

Solvent Remaining

However, the known adhesive composition does not have sufficient

adhesion, has a superior cold flow.

The purpose of the invention is to improve adhesion, reducing cold flow.

The goal is achieved in that the adhesive composition for adhesive tapes, containing chlorinated natural rubber, copolymer — butyl (meth) acrylate with methacrylic acid or amide of methacrylic acid, plasticizer, modifying agent, polyether and solvent, contains polyether cyanuric acid with phenyl glycidyl as polyester ether and maleic anhydride with a molar ratio of the starting components, respectively, 0.1: 0.6: 0.3, perchlorovinyl, phenol-formaldehyde resin, can Fol or a mixture thereof, and further - melamine cyanurate in the following ratio, wt.%:

Chlorinated natural rubber 20.0-35.8 Perchlorovinyl resin, phenol-formaldehyde resin, rosin, or their

mix2-8-8.0

Plasticizer 15.0-31.2 Butyl (meth) acrylate copolymer with methacrylic acid or methacrylic acid amide2, 0-8.0 Melamine cyanurate 0.5-4.0 Polyether of cyanuric acid with phenylglycidyl ether and maleic anhydride with the molar ratio of the starting materials components

0.1: 0.6: 0.3 0.5-4.0 Solvent Else

Chlorinated natural rubber (HNK) of the grades HNK-20, HNK-40 (TU-6-01-109276) is used as an approved natural rubber.

As perchlorovinyl resin, a resin grade PSX (GOST 1004-72) is used.

As a phenol-formaldehyde resin, resins of the grades 101K-p-tert-butylphenol-formaldehyde resin (TU 6-10-1261-74), resins phenol-formahyde SF-340A, SF-340, SF-341, SF-342 (GOST 18694-7-73) are used. obtained by polycondensation of phenol, aniline, formaldehyde. cnc-sn-cn oo II o O-C-CH CH-C-O-OHgIII 5 o is prepared according to the following technology. Charged to the reactor 12.9 g (0.1 mol) of cyanzopic acid, 45 g (0.3 mol, d - 1.1) of phenylglycidyl ester and 0.3 g of tetramethylammonium chloride (catalyst). With stirring, the temperature of the reaction medium is brought up to 130 s, and the process at this temperature is continued until the cyanuric acid is completely dissolved (3-4 h.). The reaction zone is then cooled down and 29.4 g (0.3 mol) of maleic anhydride is added. After adding maleic anhydride, the temperature is raised to 130 ° C, and the reaction is carried out for 3 hours. Then a second portion of 45 g (0.3 mol of phenylglycidin ether) is added, and the process at this temperature is continued for another 3-4 hours. An amorphous product is obtained Brown, Yield - quantitative, T.Sh1. 85-90 ° C. The following absorption bands were found in the IR spectra: 763, 1700, 1340, SOY, 1410, 3450 cm, corresponding to the isocyanurate ring: -sng-o- 0 - n he - respectively. Elemental analysis. Found,%: C 62.35; N 3.05, L 25.38

As a plasticizer, dibutyl phthalate, dioctyl phthalate, dioxebacyanate, tricresyl phosphate are used.

Methyl ethyl ketone, acetone, ethyl acetate are used as solvents.

As an acrylic resin, AC resin is used: butyl acrylate copolymer with methacrylic acid amide (TU 6-01-370-69), BMK-5 resin — butyl methacrylic resin, butyl methacrylate copolymer with methacrylic acid.

Polyl ester of cyanuric acid with phenylglycidyl ether and maleic anhydride of the formula CH-CHgO - CfegNjO H ,, Calculated 1%,%: C 62.58; N 3.17; H 5.21. Maleic cyanurate (TU 6-03-407-76) is obtained by mixing melamine and cyanuric acid (12.6: 12.9). The adhesive composition is obtained according to the following technology. Chlorinated natural rubber with plasticizer is loaded into a Z-paddle mixer. After dissolution, the modifying additive, solvent, and acrylic resin are added. A mixture of melamine cyanurate and cyanuric polyester with phenylglycidyl ether and maleic anhydride is then introduced. After complete homogenization, discharge is performed. An adhesive tape is made from the finished adhesive composition. The table shows the compositions and properties of the proposed adhesive composition in comparison with the known and control examples. The tests are carried out on materials: sticky tape on paper-based concrete. As can be seen from the table, the proposed adhesive composition has a high adhesion, reduced coldtext. The adhesive composition for adhesive tape can be used in construction, 10989486

In order to temporarily fix metal nails with metal clips for concealed wiring, there are breakdowns in the insulation, which instead of the current one will contribute to a marriage in construction. Attaching wires with alabaster, hyping the proposed adhesive compound with metal straps, nail - 5 times a day, the adhesive tape is released. These methods are labor-consuming building material (gypsum, alabaster), and are not effective. When crepe-eliminate marriage.

6.3 31.2

12.5 1.0

- 1.0

12.5 1.0

31.3 31.2

2.55

.

2.55 3.5

- 2, 3

  , 1,0

31.2 31.2

31.2

1.0

1.0

1.0

1.0

1.0

1.0

1.0 1.0 1.0 31.2 31.0 31.2

3.5 3.5

3.5

1.0

1.0

1.0

1.0

30.1

30.0

Perchlorovinyl

PXC resin

Phenol formaldehyde resin grades

101 K

SF-340 Rosin

Dibutyl phthalate

eight

1098948 Continuation of the table

30.0

30.1

30.0

3.0

2.0

8.0 30.0 10.0

10.0

Table continuation

Claims (2)

GLUE COMPOSITION FOR ADHESIVE TAPES, containing chlorinated natural rubber, a copolymer of butyl (meth) acrylate with methacrylic acid or methacrylic acid amide, a plasticizer, a modifying additive, a polyester and a solvent, characterized in that, in order to increase adhesion and reduce cold flow, as a polyester, a polyester of cyanuric acid with phenyl glycidyl ether and maleic anhydride with a molar ratio of the indicated starting components of 0.1: 0.6: 0.3, respectively, as a modifying additive, per lorvinilovuyu, phenol-formaldehyde resin, rosin or a mixture thereof and optionally melamine cyanurate in the following ratio, wt.%: Natural chlorinated rubber Perchorvinyl resin, phenol-formaldehyde resin, rosin or a mixture thereof Plasticizer Butyl (meth) acrylate copolymer with methacrylic acid or methacrylic acid amide Melamine cyanurate Cyanuric acid polyester with phenyl glycidyl ether and maleic anhydride with a molar ratio of the indicated starting components 0.1: 0.6: 0.3 Solvent 20.0-35.8 2.0-8.0 15.0-31.2 2.0-8.0 0.5-4.0 0.5-4.0 Else