Fluoroelastomer film compositions containing phenoxy resins and

Details Fluoroelastomer film compositions containing phenoxy resins and Fluoroelastomer film compositions containing phenoxy resins and

1982-07-23

1984-05-01

Pertilla, Theodore E.

Coating processes

With post-treatment of coating or coating material

Heating or drying

4273881, 4273897, 428413, 428417, 428418, 524508, 525133, 525144, 525930, B05D 302, C08L 6300

Patent

active

044461763

ABSTRACT:
The invention herein disclosed provides a method for preparing fluoroelastomer film compositions including the steps of dissolving a fluoroelastomer gum selected from the group consisting of copolymers of vinylidene fluoride and hexafluoropropylene, and terpolymers of vinylidene fluoride, hexafluoropropylene and tetrafluoroethylene in a solvent, adding a phenoxy resin to the gum solution, evaporating the solvent and baking the resulting film. A method is also provided for adhering fluoroelastomer film compositions, devoid of metallic oxides, to substrates which includes the steps of dissolving the fluoroelastomer gum in a solvent, adding a phenoxy resin to the gum solution, coating the substrate with the fluoroelastomer gum-phenoxy resin solution, evaporating the solvent and baking the resulting film, leaving a cured film firmly adhered to the substrate. The fluoroelastomer film compositions disclosed herein are also novel and can be used to coat a variety of substrates thereby providing other novel, useful articles.

REFERENCES:
patent: 3498939 (1970-03-01), Schier et al.
patent: 4143204 (1979-03-01), Fang
Hackett, "Adhering `VITON` to Metal During Vulcanization", duPont VITON Report VT-450.1, (pp. 1-16).
Bowman, "Solution Coatings of VITON", duPont VITON Bulletin No. 16, 1966, (pp. 1-10).
Alexander, "A Capsule View of the A, B and E Types of `VITON`", duPont VITON Report VT-000.1 (R2).
Arnold, Barney and Thompson, Rubber Chemistry and Technology, "Fluoroelastomers", 619-653.

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