Process for preparing predispersed fiber compositions

Details Process for preparing predispersed fiber compositions Process for preparing predispersed fiber compositions

1987-10-06

1989-05-23

Lilling, Herbert J.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524 34, 524198, 524209, 524315, 524483, 524491, 524506, 524507, 524513, 524519, 524524, 524525, 524526, 524514, 525178, 525184, C08K 502, C08K 501

Patent

active

048331910

ABSTRACT:
A process for preparing a predispersed fiber composition useful for dispersing discontinuous fibers into a rubber or plastic polymer compound is disclosed which comprises mixing at least about 15 percent by weight of a pourable binder composition with up to about 85 percent by weight of discontinuous fibers at a temperature of from about 40.degree. C. to about 150.degree. C. until a homogeneous predispersed fiber composition is obtained. The binder composition comprises from about 50 to 100 percent by weight of a rubber or plastic polymer, from 0 to about 50 perecnt by weight of a plasticizer or peptizer for the polymer, and from 0 to about 45 percent by weight of critical chemical additives, and is pourable at ambient tmeperature or becomes pourable upon being heated to a temperature of up to about 135.degree. C. and has a Brookfield viscosity of less than about 1,300,000 centipoises at the temperature at which it is pourable.

REFERENCES:
patent: 4125493 (1978-11-01), Posiviata et al.

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