Impact modifier, process for producing the same, and...

Details Impact modifier, process for producing the same, and... Impact modifier, process for producing the same, and...

2008-01-08

2008-01-08

Harlan, Robert D. (Department: 1713)

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C525S227000, C525S225000, C525S309000

Reexamination Certificate

active

07317043

ABSTRACT:
There is disclosed an impact modifier which comprises a graft copolymer comprising a rubber polymer (A) obtained from a mixture of one or more kinds of (meth)acrylic monomers as major ingredients, having a glass transfer temperature of 0° C. or lower, and forming particles having each of 80 wt % or more of them has a particle diameter within the range of 400 to 1,000 nm as determined from a particle diameter distribution on a weight basis, and branches (B) grafted thereto obtained from one or more kinds of vinyl monomers; a process for producing thereof; and a thermoplastic resin composition containing the impact modifier.

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U.S. Appl. No. 10/504,334, filed Aug. 25, 2004, Nakamura et al.

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