Cross-linked products with the structure of perfluoropolyethers

Details Cross-linked products with the structure of perfluoropolyethers Cross-linked products with the structure of perfluoropolyethers

1989-04-10

1992-04-14

McCamish, Marion E.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

522156, 528361, 528392, 204156, 20415792, C08G 6500, C08G 5934

Patent

active

051049112

ABSTRACT:
Cross-linked macromolecular products having the structure of perfluoropolyethers in which the cross-linking is due to C--C links between carbon atoms of different perfluoropolyether chains, said cross-linked products being obtained by treatment by means of U.V. radiations of the corresponding perfluoropolyethers containing at least three groups: ##STR1## arranged along the chain and at one or at both ends; the C--C link of cross-linking coming from the removal of two groups: ##STR2## of different perfluoropolyether chains.

REFERENCES:
patent: 3849504 (1974-11-01), Mitsch

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