Process for the preparation of graft copolymers

Details Process for the preparation of graft copolymers Process for the preparation of graft copolymers

1978-12-15

1981-09-29

Anderson, Harold D.

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

Synthetic resins

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

260 27R, 525385, C08L 5108

Patent

active

RE0307548

ABSTRACT:
Process for the preparation of thermoplastic graft copolymers which comprises heating for about 15 seconds to 60 minutes, with mixing, a trunk copolymer of at least two monomers, at least one of said monomers providing amine-reactive sites taken from the group consisting of the anhydride group, e.g., maleic anhydride; a vicinal pair of carboxylic groups and a carboxylic acid adjacent to an alkoxycarbonyl group, wherein the alkoxy group contains up to 20 carbon atoms, and at least one of said monomers containing no amine-reactive sites, and at least one side chain polymer having per chain one active amine site taken from the group consisting of primary and secondary amines, the remainder of said side chain polymer being substantially unreactive with the reactive sites, e.g., amino-substituted polycaprolactam, polylaurolactam, polyethylene oxide, etc., of the trunk copolymer. The process provides control of the type and length of the side chain polymer grafted onto the trunk copolymer. Plastic graft copolymers are included, specifically those containing one or more side chain polymer types with the priviso that when only one type side chain polymer is present the side chain polymer contains only one nitrogen atom, said atom being found in the active amine site.

REFERENCES:
patent: 2524045 (1950-10-01), Flory
patent: 3136738 (1964-06-01), Hedrick et al.
patent: 3539664 (1970-11-01), Kray et al.
patent: 3644571 (1972-02-01), Anderson et al.
patent: 3676400 (1972-07-01), Kohan et al.

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