Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1990-08-09
1991-10-08
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526313, 526332, 5262929, 526273, 526312, 526279, C08F 416, C08F 1224, C08F 1616
Patent
active
050555367
ABSTRACT:
A method of preparing vinyl ether polymers is provided. The process utilizes as a catalyst an iodine containing electrophile and a zeolite. The vinyl ethers cationically polymerize to polymers having narrow molecular weight distributions. The vinyl ether may be copolymerized with styrene, alkyl-substituted styrenes, alkoxy-substituted styrenes and mixtures thereof.
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Nagumo M.
Okorafor James O.
Schofer Joseph L.
Shell Oil Company
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