Processing aid for thermoplastic resin and thermoplastic...

Details Processing aid for thermoplastic resin and thermoplastic... Processing aid for thermoplastic resin and thermoplastic...

2006-09-12

2006-09-12

Lipman, Bernard (Department: 1713)

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S176000, C525S221000, C525S222000, C526S069000, C526S078000, C526S208000, C526S216000, C526S232300, C526S272000, C526S271000, C526S309000, C526S329700

Reexamination Certificate

active

07105602

ABSTRACT:
The present invention provides a processing aid for thermoplastic resin having a weight average molecular weight of 10,000 to 300,000, which is obtained by polymerizing an alkyl (meth)acrylate, or an alkyl (meth)acrylate and another vinyl monomer copolymerizable therewith, in the presence of a mercaptan having an alkyl ester group with C4-20alkyl group as a chain transfer agent, and/or an organic peroxide having a tertiary-butyl peroxy group as a polymerization initiator.

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