Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2011-01-04
2011-01-04
Harlan, Robert D. (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C524S556000, C524S565000
Reexamination Certificate
active
07863359
ABSTRACT:
Provided are a method of preparing a transparent copolymer resin by continuous bulk polymerization of a polymerization mixture obtained by adding a phenol-based antioxidant and/or a phosphate-based antioxidant, a chain transfer agent, and an organic peroxide initiator to a monomer mixture including a styrene monomer, an acrylate monomer, and an acrylonitrile monomer, and a transparent copolymer resin prepared by the method, having good chemical resistance, fluidity, and discoloration resistance.
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Han Chang Hun
Lee Dae-woo
Lee Seeun
Cantor & Colburn LLP
Harlan Robert D.
LG Chem Ltd.
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