Polyamide compositions comprising poly(amide-ether) block copoly

Details Polyamide compositions comprising poly(amide-ether) block copoly Polyamide compositions comprising poly(amide-ether) block copoly

1990-08-27

1992-10-06

Carrillo, Ana L.

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

Synthetic resins

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

525434, C08L 7700

Patent

active

051532751

ABSTRACT:
Nylon compositions useful for molding and film applications with film properties and impact strength are made of a polyamide resin and a block copolymer of poly(amide-ether) of the formula ##STR1## where R is an alkyl or substituted alkyl group with from one to 12 carbons, n is an integer from 2 to 20, m is an integer from 1 to 6, and x and y are numbers from about 50 to about 30,000. In one embodiment, a non-polymeric amide is added to the composition. Articles made from the claimed compositions have improved impact strength; films made from the compositions have improved drapeability over the unmodified resin, both at room temperature and after heat-aging. Reinforced compositions are obtained by including mineral and other reinforcing fillers, including glass fibers, in the extrusion process. The reinforced compositions exhibit improved impact characteristics.

REFERENCES:
patent: 3549724 (1970-12-01), Okazaki et al.
patent: 4331786 (1982-05-01), Foy et al.

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