SU539930A1 - Adhesive composition - Google Patents

Description

(54) GLUE COMPOSITION

The invention relates to the compositions of adhesive compositions used in the shoe industry.

Known adhesive 88, used in the manufacture of footwear and containing (in weight, h) nairit 100, rosin 2, zinc oxide 5, magnesium oxide 12, altax 2, diphenylguanidine 1 and resin 101-100 N.

However, the adhesive is characterized by reduced storage stability.

A glue composition is also known, including (i.e. parts): polychloroprene rubber 10O, magnesium oxide 4-10, zinc oxide 5-15, alkylphenol formaldehyde resin 5-45, filler 5-20 and aerosil 5-20 2.

The natural disadvantage of the composition is the loss of stability during long-term storage — adhesive gelatin; loses its adhesive properties.

The purpose of the invention is to increase storage stability.

This goal is achieved by the fact that the adhesive composition, including polychloroprene rubber, alkylphenol-formaldehyde resin, zinc oxide, magnesium oxide and aerosil, additionally contains polyoxypropylene urethane and a mixture of cadmium and laurate of barium at a ratio of 2: 1 with the following ratio of all components (weight, h) :

Polychloroprene rubber 10O Alkylfeiol formaldehyde with S ol (with m ol 101K) 10-100

Zinc Oxide1-10

Magnesium Oxide 1-10

A mixture of cadmium and bari laurate 0.5-10

1 Ali okopir opilenureniedeep oka and p0,1-10

Aerosil, 2-20

Chlornaite can be added to the composition. Example 1. A rubber mixture of the following composition is prepared for contacting the adhesive (part by weight): copperite CT 1OO, resin 101K 10, chlorine erythite 20, zinc oxide 5, magnesium oxide 5, aerosil 5 , polyoxypropylene urethane 0.5 and cadmium and barium laurate 0.5.

Then a 15% solution in metaxylene is prepared. The stability of the glue is determined by the rate of change of the relative viscosity in the process of holding the solution in the Hepler viscometer at 1 ° C.

Other examples of compositions are presented in table. 1, the change in the relative viscosity of the adhesives when heated in the Toepler viscometer at 90 is given in Table. 2. As follows from the table. 2, the adhesive is characterized by increased viscosity stability, which

evidence of increased viability of the adhesive composition.

In tab. 3 shows the viability of the adhesive composition.

5 Data on bonding strength are presented in table. four.

Claims (2)

The proposed Composition is characterized by increased storage stability, fast-setting and sufficient strength, which makes it possible to use it for urgent repair of shoes. Table 1 Adhesive Compositions Adhesive Compositions Claims of Invention Adhesive composition comprising polychloroprene rubber, alkylphenol formaldehyde resin, zinc oxide, magnesium oxide, and aerosil, characterized in that, in order to improve the stability of the composition during storage, it also contains polyoxaccharide pasteboard, and in addition, you can also apply a poster to make a paste pattern. cadmium and bari in a 2: 1 ratio with the following ratio of all components (in weight parts): Polychloroprene rubber Spreadsheets 4 Change in viscosity of adhesives (in sec. By, nozzle 7 mm) during long-term storage (dry residue 23 ± 2; solvent gasoline: ethyl acetate 1: 1). Resistance to delamination of bondings (kersey with kersey, kg / cm) when using various types of adhesives (dry residue solvent gasoline: ethyl acetate 1: 1) Table 3 Alkylphenol formaldehyde resin 10-100 Zinc oxide 1-10 Magnesium oxide 1-10 Mixture of cadmium and barium 0, 5-10 P OLI oxypr opilenure tandiepoksid0, 1-10 Aerosil2-20 Sources of information taken into account during the examination: 1.D. A. Kardashev, Synthetic adhesives D. Chemie, 1968, pp. 297-298. 2. The patent of the USSR No. 55696, cl. 22 i 2, 73g. (prototype).