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

1979-12-20

1982-06-01

Cockeram, H. S.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

424 78, 525192, 525193, 525194, 525197, 525198, 525207, 528501, 524 37, 524 40, 524 41, 524549, C08L 3302, C08L 112, A61K 4700, C08F 610

Patent

active

043329179

ABSTRACT:
Method for preparing a polymer alloy which is stable and homogeneous up to high temperatures, from 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, wherein first a solution of component (a) is prepared in an organic solvent, to which solution then component (b) is added, whereas component (a) in dissolved state is protolyzed in whole or in part, prior to or after the addition of component (b) under the action of protolyzing agents, whereupon the solvent is removed; together with the formed products obtained from such a polymer alloy, such as granules, fibres, foils, foam, etc.

REFERENCES:
patent: 2798053 (1957-07-01), Brown
patent: 3939123 (1976-02-01), Matthews et al.
patent: 3983095 (1976-09-01), Bashaw et al.
patent: 4073754 (1978-02-01), Cabasso et al.
patent: 4097429 (1978-06-01), Elghani et al.
patent: 4160754 (1979-07-01), Schapel et al.
patent: 4192727 (1980-03-01), Ward
patent: 4263183 (1981-04-01), Light et al.
Encyclopedia of Polymer Science & Technology, vol. 15, pp. 273-291, Wiley, N.Y., 1971.

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