Thermoplastic composition comprising an aromatic...

Details Thermoplastic composition comprising an aromatic... Thermoplastic composition comprising an aromatic...

2003-03-19

2008-11-04

Yoon, Tae H (Department: 1796)

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...

C524S311000, C524S386000, C524S481000, C524S537000

Reexamination Certificate

active

07446141

ABSTRACT:
The invention relates to a thermoplastic composition comprising (a) an aromatic polycarbonate and/or a polyester, and (b) an effective amount of a mould release agent containing (b1) a fatty acid ester of an aliphatic polyol having 2-6 hydroxy groups and an aliphatic C10-C36carboxylic acid; and (b2) a saturated alpha-olefin oligomer of at least one C6-C18alpha-olefin; the mass ratio of components (b1) and (b2) being from 1/9 to 9/1. With this thermoplastic composition a very regular injection moulding processing is possible, with lower release forces needed during demoulding of parts, and with shorter total moulding cycle-times. The invention further concerns the use of the thermoplastic composition according to the invention for injection moulding of articles and to moulded articles thus obtained.

REFERENCES:
patent: 4521562 (1985-06-01), Rosenquist
patent: 4626566 (1986-12-01), Miller
patent: 5717021 (1998-02-01), Huang
patent: 5959063 (1999-09-01), Huang
patent: 2003/0096122 (2003-05-01), Mercx et al.
patent: 230 015 (1987-07-01), None
patent: 433 713 (1991-06-01), None
patent: 878 507 (1998-11-01), None

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