Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
FUSION TREATMENT OF FLUOROPOLYMER
Document Type and Number:
Japanese Patent JPS54155273
Kind Code:
A
Abstract:

PURPOSE: To bond a film of a fluoropolymer having sulfonyl, carboxyl, or sulfonamide group in the side chains to its damage part in fusion without surface preparation, by heating the fluropolymer in the presence of an aqueous medium.

CONSTITUTION: A fluoropolymer having one or more functional groups seclected from the group consisting of sulfonic acid, carboxylic acid, or sulfonamide, and their salts is heated in the presence of an aqueous medium so that the decomposition of the fluoropolymer is prevented and its flow properties can be improved. Fluorinated ethylene which will form a main chain and a vinyl fluoride compound having a functional group in the side chain are polymerized in the presence of a catalyst in water or in an organic solvent to give the fluoropolymer. A copophymer of CF2= CF2 and a compound shown by the formula (n is 1 or 3) may be cited as the fluoropolymer.


Inventors:
Sagami, Hiroshi
Tsushima, Sakae
Miyauchi, Koji
Application Number:
JP1978000063867
Publication Date:
December 07, 1979
Filing Date:
May 30, 1978
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
ASAHI CHEM IND CO LTD
International Classes:
B29C71/02; B01J47/12; B29C65/02; B29C71/00; C08F6/00; C08J5/12; C08J5/22; C08K3/18; C08L27/12; C08L27/18; C08L27/22; C25B13/00; C25B13/08; (IPC1-7): C08J5/22; C08J7/08; C25B13/00