METHOD OF PRODUCING MODIFYING AGENT FOR POLYVINYL CHLORIDE COMPOSITION PROCESSING Russian patent published in 1996 - IPC

Abstract RU 2065452 C1

FIELD: polymers. SUBSTANCE: method involves emulsion polymerization of 3-5 wt.-% butylacrylate followed by radical copolymerization of 95 wt.-% methylmethacrylate and 5 wt. -% butylacrylate in an aqueous medium in the presence of methylhydroxypropylcellulose and starch mixture up to preparing dispersion at particle size 7-15 mcm and filled density of copolymer 0.5-0.6 g/cm³.. Obtained modifying agent for polyvinyl chloride processing shows enhanced dynamic thermostability, smelt index and fluidity limit at stretching. EFFECT: enhanced quality of agent. 4 ex, 1 tbl

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RU 2 065 452 C1

Authors

Nikolaeva T.V.

Kulikova A.E.

Sergeev S.A.

Rudyka V.I.

Kovalev Ju.E.

Leushkina T.V.

Dates

1996-08-20—Published

1993-10-08—Filed