Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1984-09-07
1986-05-13
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526206, C08F 228
Patent
active
045887918
ABSTRACT:
A suspension polyvinyl chloride is produced which is especially suited for processing by injection molding because it exhibits a greatly improved flowability. Polymerization takes place with an ascending temperature control at at least two different temperatures, a regulator being added to the polymerization mixture by a one-time addition at a conversion of .gtoreq.20% by weight and .ltoreq.70% by weight.
REFERENCES:
patent: 3956251 (1976-05-01), Feiler et al.
patent: 3956985 (1976-05-01), Ishii
patent: 4072806 (1978-02-01), Ravey
Bieringer Heimo
Engler Martin
Holtrup Wolfgang
Huels Aktiengesellschaft
Michl Paul R.
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