Amorphous copolymers of two fluorinated ring monomers

Details Amorphous copolymers of two fluorinated ring monomers Amorphous copolymers of two fluorinated ring monomers

1993-11-09

1994-06-28

Schofer, Joseph L.

Electricity: conductors and insulators

Boxes and housings

Hermetic sealed envelope type

H01L 2328

Patent

active

053248899

ABSTRACT:
Copolymers of perfluoro(1,3-dimethyl-2,2-dioxole) with perfluoro(butenyl vinyl ether) and, optionally, with a third comonmer 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), Nakamura et al.

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