Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Reexamination Certificate
2007-03-27
2007-03-27
Seidleok, James J. (Department: 1711)
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
C427S213300, C427S213310, C264S004100, C106S285000
Reexamination Certificate
active
10980720
ABSTRACT:
The present invention relates to core-shell polymers having a hydrophilic copolymer shell, and a high level of core material of from 75 to 95 weight percent. The hydrophilic shell provides better coverage of the core resulting in better powder properties such as anti-blocking. The hydrophilic shell also allows for a thinner shell and a larger elastomeric core. Core-shell polymers of the invention are especially useful as impact modifiers for plastic materials.
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Edgecombe Brian
Hong Sheng
Pirri Rosangela
Arkema Inc.
Haider Saira B.
Roland Thomas F.
Seidleok James J.
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