Cyclic polymerization
AssigneeAsahi Glass Company, Limited
InventorsMasaru Nakamura, Isamu Kaneko, Kazuya Oharu, Gen Kojima, Masashi Matsuo, Shunichi Samejima, Motoi Kamba
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Abstract
A method for cyclic polymerization, wherein a fluorine-containing monomer is subjected to cyclic polymerization, the fluorine-containing monomer having two carbon-carbon multiple bonds, each having different polymerizability, as linked by a linking chain having a straight chain portion to from 2 to 7 atoms, and having a fluorine content of at least 10% by weight.
Claims12
A method for cyclic polymerization, which comprises subjecting a fluorine-containing monomer to cyclic polymerization, said fluorine-containing monomer having two acyclic carbons bonded to each other by a multiple bond, one carbon of which is linked by a linking chain to one carbon of two other acyclic carbons bonded to each other by a multiple bond, the carbon-carbon multiple bonds each having different polymerizability, the linking chain having a straight chain portion of from 2 to 7 atoms, and the monomer having a fluorine content of at least 10% by weight, said cyclic polymerization being carried out with an initial monomer concentration of said monomer of greater than 12% by weight.
Dependencies are inferred from the claim text.