Impact strength modifiers for polyvinyl chloride resin and...

Details Impact strength modifiers for polyvinyl chloride resin and... Impact strength modifiers for polyvinyl chloride resin and...

2011-08-30

2011-08-30

Zemel, Irina S (Department: 1765)

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

Synthetic resins

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

C525S078000, C525S081000, C525S082000, C525S084000, C525S191000, C525S242000, C525S243000, C525S305000, C525S902000

Reexamination Certificate

active

08008397

ABSTRACT:
Provided are a rubber latex having a multi-layer structure, wherein an inner-layer rubber latex has a refractive index greater than that of an outer-layer rubber latex, a graft copolymer prepared from the rubber latex, a polyvinyl chloride (PVC) resin blend containing the graft copolymer, and a method of preparing the rubber latex. The PVC resin blend containing the graft copolymer including the rubber latex according to the present invention has improved color property and low-temperature impact strength than conventional PVC resins.

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