Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Patent
1993-11-09
1994-08-16
Cannon, James C.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
360110, 360134, 360135, 427 96, 427127, 427162, 427164, 427165, 428203, 428422, 4289088, 428922, B05D 500, B32B 1702, B32B 1710, B32B 3300, G11B 5255, G11B 572
Patent
active
053386086
ABSTRACT:
Copolymers of perfluoro(1,3-dimethyl-2,2-dioxole) with perfluoro(butenyl vinyl ether) and, optionally, with a third comonomer are amorphous in all monomer proportions, and soluble in perfluoro(2-butyl tetrahydrofuran). These copolymers are suitable in many high technology applications, especially where solubility is important, e.g., in applying coatings to substrates or articles for protection against mechanical, chemical, or environmental hazards. Dipolymers of the present invention have lower glass transition temperatures than dipolymers of perfluoro(1,3-dimethyl-2,2-dioxole) with tetrafluoroethylene having the same monomer proportions.
REFERENCES:
patent: 3978030 (1976-08-01), Resnick
patent: 4754009 (1988-06-01), Squire
patent: 4897457 (1990-01-01), Nakamida et al.
patent: 5276121 (1994-01-01), Resnick
Cannon James C.
E. I. Du Pont de Nemours and Company
Tocker Edwin
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