Polyester compositions

Details Polyester compositions Polyester compositions

1992-01-27

1992-11-24

Short, Patricia A.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524 86, 524 98, 524 99, 524104, 525 27, 525 28, 525 47, 525170, C08L 6706

Patent

active

051662914

ABSTRACT:
Unsaturated polyester fiber reinforced molding compounds containing low profile additives achieve moldings with improved shrinkage control, improved surface appearance, less separation and lower coefficient of thermal expansion by the addition of lactams.

REFERENCES:
patent: 2987499 (1961-06-01), Werner
patent: 3956421 (1976-05-01), Roberts
patent: 4035439 (1977-07-01), Stevenson
patent: 4374215 (1983-02-01), Atkins
patent: 4525498 (1985-06-01), Atkins
patent: 4673706 (1987-06-01), Atkins
patent: 4755557 (1988-07-01), Atkins

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