Tough flexible polymer blends

Details Tough flexible polymer blends Tough flexible polymer blends

1988-10-25

1991-03-26

Marquis, Melvyn I.

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

Synthetic resins

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

525 81, 525125, 525127, 525162, 525 64, 525 66, 525 74, 525 67, 524 91, 4284244, C08L 6104, C08L 5100, C08L 3304, B32B 2740

Patent

active

050030043

ABSTRACT:
A blend of a softer continuous phase polymer reinforced with harder acrylic star polymer particles having reactive functional groups with crosslinking ability built in or provided by a third polymer. The harder polymer has a T.sub.g at least 10.degree. C. above that of the softer polymer, and the acrylic star polymer is preferably made by group transfer polymerization. This blend provides coating compositions, films and bulk polymer with enhanced toughness and flexibility.

REFERENCES:
patent: 4048254 (1977-09-01), Hilliev et al.
patent: 4417034 (1983-11-01), Webster
patent: 4659783 (1987-04-01), Spinelli
International Publication WO86/00626, Spinelli, Published, Jan. 30,1986.

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