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US 4,666,991 AGranted
Fluorine-containing graft copolymer and adhesive and composite membrane made thereof
AssigneeSagami Chemical Research Center
InventorsKiyohide Matsui, Kazuhiko Ishihara
Life of this patent
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Abstract
A graft copolymer consisting essentially of a main chain polymer having a glass transition temperature (Tg) of at least 30.degree. C. and a graft chain fluorine-containing polymer having a repreating unit of the formula: ##STR1## wherein R.sup.1 is a hydrogen atom or a lower alkyl group, and R.sup.2 is a polyfluoroalkyl group.
Claims8
A graft copolymer consisting essentially of a main chain polymer having a glass transition temperature (Tg) of at least 30.degree. C. and a graft chain fluorine-containing polymer having a repeating unit of the formula:
- ##STR10## wherein R.sup.1 is a hydrogen atom or a lower alkyl group, and R.sup.2 is a polyfluoroalkyl group and wherein said graft copolymer is produced by solution polymerization and is soluble in a low boiling point solvent having an affinity with a fluorinated polymer.
Dependencies are inferred from the claim text.