SU783327A1 - Glue - Google Patents

Description

San-1,3. melted in a mixer at 130-16 ° C. With continuous stirring, ethylene-vinyl acetate copolymer is gradually added to the melt, raising the temperature to 180-190 ° C. After the mixture is completely homogenized, the composition is cooled to 100-120 seconds and molded from a melt. Coking is applied to the surface to be glued in the molten state at 150-190 ° C. Specific compositions of the adhesive compositions are given in Table. 1. In table. 2 shows the results of the sticking quality of gluing with nOMObtH pre; agaema adhesive composition of synthetic cladding materials to the edges of panel parts with a filler made of foam plastic of the PSI PPU-Zs brands. V. , The characteristics of the known L2j and the proposed adhesive compositions are given in Table. 3. Example 2. Prepared glue. kc position as in example 1; using 2-phenyl-4,5- {Г, 2, 2, 3., 4 as a stabilizer. , 5-hexachloroprop-4-cyclopenthen-l, 3, -ylen) -dioxane-1, 3. Specific compositions of adhesive compositions are given in table. 4. In table. Figure 5 shows the results of gluing quality testing using the proposed adhesive composition of synthetic facing materials to KpoMKciM board parts with a filler made of foam plastic grades PS-1 and PPU-ZS. A comparative characteristic of the known AND and the proposed adhesive glue are shown in Table. 6. The use of a new adhesive composition significantly increases the bonding strength of materials: resistance to tearing increases by more than 3 times as compared with resistance to fracture increases by 2 times as compared with the known composition. a b and c a 1

Copolymer

ethylene with

vinley brush

{content

vinyl acetate

28.2 wt.%

indicator

yield strength

melt

200 g / 40 min) 10

Glycerin

live air

rosin

(temperature

spreading

acid

number 12.1)

2-phenyl-4,5- (4-cyclopentan-1, 3-ylene) -dioxan-1, 3

PS-1 31.4 34.8 38.0 31.4 34.8 Zb, 0 28.1 30.0 36.3 PPU-Zs28.4 30.5 40.6 28.1 30.0 40.5 24.6 29D 38.1

faces

T a; 00 100 75 0.5

nC-l 35.6 38.0 40.9 35.6 37.8 40.8 31.9 34.1 -29.9

PPU -.-: h;, .., ..: .-, :: -.-.; ...,:

3c 32.0 34.8 43.5 32.0 33.9 43.3 30.1 32.4 40.8

7833276

Table 3

100

88100

1.32.0; Formula of the invention Glue, including a copolymer of ethyl with viniladetat, rosin ester and a stabilizer, is given a compound of the general formula I as a stabilizer for the purpose of increasing the bonding strength; , ... -. where X is hydrogen or halogen) R and R is alkyl or aryl.

Table 6 with trace ratio of components, parts by weight: Ethylene-vinyl copolymer. acetate .100 Ether, rosin 75-100 Stabilizer 0.5-2. Sources of information, taken into account for expert examination 1, Kapgauies, D. A., Synthetic adhesives, M., Hdada, 1976, p. 348. 2. USSR author's certificate number 551353, cl. From 09 J 3/14. 23,09.75 (prototype). I 3. USSR author's certificate. No. 450799, cl. C 07 O 319/08, 05/17/73.

Claims (1)

Claim An adhesive comprising a copolymer of ethylene with vinyl acetate, rosin ester and a stabilizer, with the fact that, in order to increase strength, bonding, it contains as a stabilizer a compound of the general formula I , · »···· X Xv X > 0 ^: ] X- (I) - “ 1 where is x-hydrogen OR halogen) R * and R _a - alkyl or aryl in the following ratio of components, parts by weight: A copolymer of ethylene with vinyl. acetate 100 Ether, rosins 75-100 The stabilizer is 0.5-2.