Warpage controlled polyesters

Details Warpage controlled polyesters Warpage controlled polyesters

1989-11-02

1991-06-25

Short, Patricia

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524538, 525425, C08L 6702

Patent

active

050267604

ABSTRACT:
Disclosed are thermoplastic polyester composition that display increased resistance to warpage. The compositions are comprised of at least one polyester resin modified with a warpage control agent, said warpage control agent being a high molecular weight polyetherimide ester elastomer. The resulting composition is preferably reinforced with glass fibers.

REFERENCES:
patent: 4598117 (1986-07-01), Liu
patent: 4639486 (1987-01-01), Liu
patent: 4659765 (1987-04-01), Liu

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