Polyamide fibers

Details Polyamide fibers Polyamide fibers

1994-04-11

1994-12-06

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

4274071, 427412, 428382, 428383, 525178, 525184, 525427, B05D 136, B32B 2500, C08F28304

Patent

active

053711530

ABSTRACT:
The present process for producing aromatic polyamide fibers for reinforcement of rubbers lies in that, in the first step, the fibers are dipped in an epoxy treating solution containing aromatic glycidylamines having 2 or more epoxy groups in one molecule and aromatic amines at a specific ratio and dried and cured, and thereafter, in the second step, the fibers are dipped in a treating solution for the second step containing resorcin formaldehyde resins and rubber latices and dried and cured. More preferably, specific chlorophenol compounds are added to the treating solution for the second step.
The aromatic polyamide fibers obtained by the process of the present invention provide rubber products excellent in water resistance when they are used for reinforcement of rubbers, and the products have high adhesive strength in initial adhesion and besides, small decrease in adhesive strength even if they are dipped in water for a long time.

REFERENCES:
Br. Polym. J., 3:58 Mar. 1971, Mather.

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