Carboxylic acid/anhydride copolymer nanoscale process aids

Details Carboxylic acid/anhydride copolymer nanoscale process aids Carboxylic acid/anhydride copolymer nanoscale process aids

2011-04-19

2011-04-19

Bernshteyn, Michael M (Department: 1762)

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...

C524S502000, C524S514000, C524S524000, C526S317100, C526S319000

Reexamination Certificate

active

07928158

ABSTRACT:
The present invention relates to copolymer process aids having a carboxylic anhydride or acid functionality and a hydrophobic functionality. The copolymer process aid can be used in the exfoliation of a nanoclay, where it can be made in situ; and can also serve as a compatibilizer for exfoliated nanoclays with a polymer matrix, including with impact modified polymer matrices.

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Hasegawa, Naoki, et al., “Preparation and Mechanical Properties of Polypropylene-Clay Hybrids Using a Maleic Anhydride-Modified Polypropylene Oligomer”,Journal of Applied Polymer Science, Jan. 3, 1998, vol. 67, pp. 87-92 (abstract only).

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