Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
260879, 260880B, 526 25, 526 26, 526173, 526180, 526181, 526308, C08F 408, C08F 804, C08F23206
A copolymer is produced by polymerization of a mixture comprising a 1,3-cyclodiene and an acyclic conjugated diene wherein a substantial percentage by weight of the acyclic conjugated diene units of the copolymer is in the trans and vinyl configurations. A method for producing the copolymer is provided employing an organolithium initiator. A hydrogenated copolymer and method of its production is also provided.
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Levin Stanford M.
Phillips Petroleum Company
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