Method for preparing acryl based impact-reinforcement

Details Method for preparing acryl based impact-reinforcement Method for preparing acryl based impact-reinforcement

2006-01-24

2006-01-24

Mullis, Jeffrey (Department: 1711)

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C525S071000

Reexamination Certificate

active

06989408

ABSTRACT:
The present invention relates to a preparation method of an acryl-based impact-reinforcement, and more particularly, to a preparation method of an acryl-based reinforcement prepared by blending latex having large particles and latex having small particles, being capable of enhancing impact-resistance of a polyvinyl chloride (PVC) resin. The present invention provides a method of preparing an acryl-based impact reinforcement comprising a step of blending a) 50 to 90 parts by weight of latex having large particles with a particle size of 200 to 500 nm and a core-shell structure and b) 10 to 50 parts by weight of latex having small particles with a particle size of 60 to 140 nm and a core-shell structure. In addition, the present invention provides an impact-reinforcement prepared by the method of the present invention, and a polyvinyl chloride (PVC) composition comprising the same.

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International Search Report; PCT/KR01/02162; Mar. 12, 2002.
International Preliminary Examination Report; PCT/KR01/02162; Mar. 18, 2003.

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