Perfluorocarbon polymeric coatings having low critical surface t

Details Perfluorocarbon polymeric coatings having low critical surface t Perfluorocarbon polymeric coatings having low critical surface t

1983-03-18

1986-05-13

Ives, P. C.

Stock material or miscellaneous articles

Composite

Of polyisocyanurate

428421, 428461, 428412, 428576, 4284231, 428543, 524165, 427230, 427234, 427235, B32B 2700, B05D 722

Patent

active

045886431

ABSTRACT:
Coated internal surfaces of molding apparatus and a process for reducing the amount of sticking of material on the internal surface of a molding apparatus are disclosed. The coated substrate and the process both employ release compositions having very low surface tensions comprising (1) a linear or branched polymer containing ionic functional moieties and (2) a perfluorocarbon compound having a counterionic character. Such compositions dissolve in volatile acidic or basic solutions and result in salt precipitates which adhere to substrates upon the evaporation of the volatile acidic or basic solution.

REFERENCES:
patent: 3033833 (1962-05-01), LeFevre et al.
patent: 3692673 (1972-09-01), Hoke
patent: 3773544 (1973-11-01), Newton et al.
patent: 4075134 (1978-02-01), Morehouse, Jr. et al.
patent: 4140834 (1979-02-01), Marcantomo et al.
patent: 4344993 (1982-08-01), Schmidt et al.
patent: 4393119 (1983-07-01), Concannon

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