Process for preparing synthetic resin powder having improved blo

Details Process for preparing synthetic resin powder having improved blo Process for preparing synthetic resin powder having improved blo

1994-06-17

1996-07-30

Jagannathan, Vasu S.

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

Synthetic resins

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

525 83, 525 87, C08L 5104

Patent

active

055412564

ABSTRACT:
A process for preparing a synthetic resin powder having an improved blocking resistance suitable as a modifier for vinyl chloride resins, which comprises coagulating an aqueous latex of a graft copolymer suitable as a modifier for vinyl chloride resins, mixing the resulting, slurry with a latex of a specific polymer of methyl methacrylate, an aromatic vinyl compound, a crosslinkling monomer and optionally other copolymerizable monomers or a slurry formed from the specific polymer latex by coagulation, and recovering a powder from the resulting mixture containing the coagulated graft copolymer and the coagulated specific polymer.

REFERENCES:
patent: 4275178 (1981-06-01), Yusa
patent: 4463131 (1984-07-01), Grandzol
patent: 4897462 (1990-01-01), Yusa
patent: 5306763 (1994-04-01), Matsumoto
patent: 5362795 (1994-11-01), Matsumoto
European Search Report for Application No. 94109089.6, mailed Sep. 6, 1994.

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