Plastic ovenware compositions

Details Plastic ovenware compositions Plastic ovenware compositions

1991-05-09

1992-07-21

Seidleck, James J.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524451, 524539, 525444, C08K 334, C08K 310, C08L 6703

Patent

active

051323362

ABSTRACT:
A molded article of permanent ovenware comprising (A) 35-85% by weight of a wholly aromatic polyester resin; (B) 15-65% by weight of a specifically defined talc containing a minimum amount of materials decomposable at elevated temperatures; and (C) 0-20% titanium dioxide, wherein the wholly aromatic polyester resin (A) is a blend comprising a first resin based on repeating units of hydroquinone, isophthalic acid (or mixtures of iso- and terephthalic acids), and para-hydroxybenzoic acid, and a second resin based on repeating units of biphenol, isophthalic acid, terephthalic acid and para-hydroxybenzoic acid. The ovenware shows excellent resistance to blistering, bubbling and cracking during molding and oven use.

REFERENCES:
patent: 3637595 (1969-05-01), Cottis
patent: 4563508 (1986-01-01), Cottis
patent: 4626557 (1986-12-01), Duska

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