Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1974-04-18
1976-06-01
Levin, Stanford M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
260 5, 260897A, 260897B, 526283, 526308, 526339, 526350, C08F23204, C08F 206
Patent
active
039608239
ABSTRACT:
Hydrocarbon resins having a softening point of 60.degree.-140.degree.C and a Gardner color of 6 or less and having excellent cohesive strength and thermal stability prepared by copolymerizing 1,3-pentadiene and cyclopentene, together with, if desired, 1,3-butadiene or isobutene and small amounts of incidental other olefins in the presence of aluminum chloride.
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patent: 3817953 (1974-06-01), Younger
Ishikawa Atsuo
Komai Hisataka
Levin Stanford M.
Nippon Zeon Co. Ltd.
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