Fluorine-containing cyclic polymer

Details Fluorine-containing cyclic polymer Fluorine-containing cyclic polymer

C - Chemistry, Metallurgy

08

F

402/527

C08F 16/32 (2006.01) B01D 71/44 (2006.01) C08G 65/00 (2006.01)

Patent

CA 1302638

ABSTRACT A fluorine-containing thermoplastic resinous polymer which consists essentially of a group (a) of repeating units of a cyclic structure to be represented by the following general formula: Image and/or Image (where: n is an integer of 1 or 2); the polymer having a molecular weight such that the intrinsic viscosity thereof may become at least 0.1. A fluorine-containing thermoplastic resinous polymer which consists essentially of: i) a group (a) of repeating units to be represented by the following general formula: Image and/or Image (where: n is an integer of 1 or 2), and ii) a group (b) of repeating units to be represented by the following general formula: ?CF2-CFX? (where: X is selected from fluorine, chlorine. O-CF2CF2CF3, O-CF2CF(CF3)OCF2CF2SO2F, and O-CF2CF2CF2COOCH3) the polymer containing therein at least 80% by weight of the group of repeating units (a), and having a molecular weight such that the intrinsic viscosity thereof may be become at least 0.1.

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