Method of preparing a polymer mixture, formed products obtained

Details Method of preparing a polymer mixture, formed products obtained Method of preparing a polymer mixture, formed products obtained

1980-06-16

1982-07-06

Cockeram, H. S.

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

Synthetic resins

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

424 78, 521134, 525192, 525198, 525207, 525194, 528501, C08L 3302, C08L 112, A61K 4700, C08F 610

Patent

active

043384170

ABSTRACT:
Method for preparing a polymer alloy which is stable and homogeneous at high temperatures which comprises a component (a) one or more polymers of high molecular weight, having anhydride groups and component (b) one or more polymers of high molecular weight, having groups which have the ability to interact with hydrogen atoms to form hydrogen bonds. Initially, a solution of component (a) is prepared in an organic solvent and thereafter a solution of component (b) is added. Component (a), in the dissolved state, may be protolyzed in whole or in part, prior to or after the addition of component (b) by the action of protolyzing agents. After the solvent is removed formed products, such as granules, fibres, foils, foam, may be made from the polymer alloy.

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