Process for producing fiber-reinforced elastic articles

Details Process for producing fiber-reinforced elastic articles Process for producing fiber-reinforced elastic articles

C - Chemistry, Metallurgy

08

L

18/1166, 18/1214

C08L 21/00 (2006.01) C08J 5/04 (2006.01)

Patent

CA 1099471

PROCESS FOR PRODUCING FIBER-REINFORCED ELASTIC ARTICLES ABSTRACT OF THE DISCLOSURE Disclosed is a process for producing fiber-reinforced elastic articles comprising: 1 to 20 parts by weight of 1,2-polybutadiene fibrils dispersed in a matrix of 100 parts by weight of a rubber material. In the process, the 1,2- -polybutadiene in the form of particles are dispersed in the matrix of rubber material; the dispersion is extruded through a die at a temperature of at least 5°C above the melting point of 1,2-polybutadiene, but not exceeding 240°C, to convert the particles of 1,2-polybutadiene into fibrils; the extruded dispersion is rolled by means of a pair of rollers to increase the degree of molecular orientation of the 1,2-polybutadiene fibrils, and; a composition comprising an elastic material matrix, the 1,2-polybutadiene fibrils dispersed in the elastic material matrix and a vulcanizing agent is shaped and vulcanized at an elevated temperature. - 1 -

299875

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