Copolymerisation of unsaturated esters

Details Copolymerisation of unsaturated esters Copolymerisation of unsaturated esters

1990-05-30

1993-01-12

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526319, 526325, 526328, 5263297, C08F 428

Patent

active

051791820

ABSTRACT:
The reaction cycle time for the copolymerization of unsaturated esters such as alkyl fumarates and vinyl acetate, and for the polymerization of methacrylates and acrylates may be dramatically reduced by carrying out the polymerization at elevated temperatures and pressures. An additional feature is the addition of initiator during polymerization which leads to improved products especially for lubricating oil pour depressants and fuel and crude oil flow improvers.

REFERENCES:
patent: 3522228 (1970-07-01), Fukui et al.
patent: 3720651 (1973-03-01), Imoto et al.
patent: 4085264 (1978-04-01), Seib et al.
Sorenson et al.: Preparative Methods of Polymer Chemistry: Interscience Publishers, Inc. (1961), pp. 9, 160 and 161.

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