Core-shell polymer and its use

Details Core-shell polymer and its use Core-shell polymer and its use

1990-10-23

1994-01-18

Kight, III, John

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

Synthetic resins

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

525183, 525902, 523201, C08F26502

Patent

active

052800750

ABSTRACT:
The invention provides a core-shell polymer which comprises (a) a core phase having carboxyl groups on surface part of the core and (b) a shell phase which is a glassy polymer containing neither functional groups reactive to the the carboxyl group nor functional groups reactive to the amino group, wherein the toluene-soluble fraction is not higher than 10% by weight based on the whole core-shell polymer; polyamide resin compositions comprising said core-shell polymer; and molded articles produced by molding said compositions.
Impact strength of the resin composition or its molded articles was improved by using the core-shell polymer.

REFERENCES:
patent: 3668274 (1972-06-01), Owens et al.
patent: 3944630 (1976-03-01), Ide et al.
patent: 4495324 (1985-01-01), Chacko et al.
patent: 4584344 (1986-04-01), Baer
patent: 4594363 (1986-06-01), Blakenship et al.
patent: 4707513 (1987-11-01), Baer
patent: 4920160 (1990-04-01), Chip et al.
patent: 4985469 (1991-01-01), Chip et al.

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