Preparation of vulcanizable compositions by extruder mixing

Details Preparation of vulcanizable compositions by extruder mixing Preparation of vulcanizable compositions by extruder mixing

1976-10-22

1980-04-08

Lieberman, Allan

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

Synthetic resins

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

264174, 264236, 264349, 525214, 525232, 525240, C08L 900, C08L 2316, C08L 2704, C08L 3306

Patent

active

041973810

ABSTRACT:
Cross-linkable polymers are prepared by the introduction of the cross-linking agent to the main body of the polymer to be cross-linked in an extruder. This method reduces the "heat history" of the cross-linkable polymer and allows greater pre-extruder processing flexibility. Thus, mixing times can be reduced and the shelf life of the pre-extruded polymeric composition can be extended. After extrusion, the product may be cross-linked by heating.

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