Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1977-01-24
1980-12-16
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526 75, 526216, 526224, 526227, 526232, 526328, 5263295, 526346, 5263292, C08F 200, C08F 434, C08F22014
Patent
active
042398754
ABSTRACT:
The present invention relates to a method for producing prepolymers based on vinyl monomers such as methacrylic acid esters, or a mixture of esters of methacrylic and acrylic acids, or styrene, or a mixture of styrene with methacrylic acid esters. The method consists in conducting mass polymerization of said vinyl monomers at a temperature of 90.degree. to 160.degree. C. in air, or in oxygen-enriched air, or in an inert gas medium in the presence of an initiating system. The system is made of a mixture consisting of:
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Etlis Volf S.
Fomin Valery A.
Mikhalev Nikolai A.
Radbil Tatyana I.
Shtarkman Boris P.
Lilling Herbert J.
Schofer Joseph L.
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