Fluororesin formed body and method for producing the same

Details Fluororesin formed body and method for producing the same Fluororesin formed body and method for producing the same

1983-04-11

1985-05-14

Robinson, Ellis P.

Stock material or miscellaneous articles

Composite

Of fluorinated addition polymer from unsaturated monomers

264127, 264221, 264259, 264265, 264317, 26433114, 264268, 428422, 428 68, 428 76, B32B 2730, B32B 110

Patent

active

045172471

ABSTRACT:
A shaped article having a synthetic resinous body and a thin fluoropolymer weld layer on its surface is formed by a process which comprises heating a heat conductive metallic core member, forming a thin fluoropolymer weld layer on the surface of the core member, treating the exposed surface of the fluoropolymer layer, forming a synthetic resinous body on the outer, treated surface of the fluoropolymer layer and removing the core member, such as by dissolving. In the shaped article thus produced, a thin fluoropolymer weld layer is formed on the surface of the synthetic resinous body, and the thickness of the fluoropolymer coating can be reduced. This permits the production of shaped articles at low cost and having high mechanical strength, even for complicated shapes. According to the invention, it is possible to produce articles having complex shapes such as corrosion resistant vessels, molds having good release characteristics, and so forth, at a comparatively low cost.

REFERENCES:
patent: 3205113 (1965-09-01), McFarland
patent: 3352714 (1967-11-01), Anderson
patent: 3420729 (1969-01-01), Roberts
patent: 3537700 (1970-11-01), Schenck
patent: 3967018 (1976-06-01), Jansta
patent: 3967042 (1976-06-01), Laskin
patent: 4215177 (1980-07-01), Strassel
patent: 4291463 (1981-09-01), Williams

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