Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Process of treating scrap or waste product containing solid...
Patent
1996-02-02
1998-05-26
Short, Patricia A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Process of treating scrap or waste product containing solid...
525444, 528302, C08G 63183
Patent
active
057565546
ABSTRACT:
This invention is a thermoplastic saturated polyester low profile additive (low profile additive) useful in sheet molding compounds for parts, especially vehicle parts. The additive has a major component derived from aromatic compounds such as terephthalic acid including recycled polyethylene terephthalate. Asymmetrical glycols are an important ingredient and can be used to digest recycled PET to make oligomeric glycols which are reacted with acids having fewer than 12 carbon atoms to make one of the low profile additives of this invention.
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Ashland Inc.
PIcken Mary E.
Short Patricia A.
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