Processes for forming thin, durable coatings of perfluorocarbon

Details Processes for forming thin, durable coatings of perfluorocarbon Processes for forming thin, durable coatings of perfluorocarbon

1995-09-07

1998-05-05

Aftergut, Karen

Plastic and nonmetallic article shaping or treating: processes

Removal of liquid component or carrier through porous mold...

By direct application of vacuum or pneumatic pressure

264122, 264127, 264232, 264340, B28B 126, B29C 7100

Patent

active

057469547

ABSTRACT:
An improved process for forming a thin, durable coating of a perfluorosulfonated, salt- or acid-form ionomer on a selected substrate, which comprises contacting the substrate with an aqueous, surface active dispersion of the thermoplastic, sulfonyl fluoride precursor of the perfluorosulfonated, salt- or acid-form ionomer, contacting the dispersion-wetted substrate with a salt solution or a strongly ionizing acid solution of a sufficient ionic strength to cause a thin, adherent coating of the precursor particles in said dispersion to be formed on the substrate, then removing excess dispersion and excess salt or acid solution, annealing the coated substrate at an elevated temperature and thereafter converting the precursor to the desired acid or salt form ionomer.

REFERENCES:
patent: 3072618 (1963-01-01), Turbak
patent: 3772059 (1973-11-01), Shikada
patent: 3799901 (1974-03-01), McCann et al.
patent: 4036728 (1977-07-01), Babinsky
patent: 4038213 (1977-07-01), McClure et al.
patent: 4112149 (1978-09-01), Babinsky
patent: 4169024 (1979-09-01), Fang
patent: 4181592 (1980-01-01), Babinsky
patent: 4243504 (1981-01-01), Fang et al.
patent: 4266036 (1981-05-01), Baczek et al.
patent: 4272560 (1981-06-01), Baczek et al.
patent: 4303551 (1981-12-01), Vaughan
patent: 4330654 (1982-05-01), Ezzell et al.
patent: 4348310 (1982-09-01), Silva et al.
patent: 4358545 (1982-11-01), Ezzell et al.
patent: 4433082 (1984-02-01), Grot
patent: 4444640 (1984-04-01), Tsai et al.
patent: 4453991 (1984-06-01), Grot
patent: 4454176 (1984-06-01), Buckfelder
patent: 4470859 (1984-09-01), Benezra et al.
patent: 4568441 (1986-02-01), Couitch et al.
patent: 4606805 (1986-08-01), Bon
patent: 4661411 (1987-04-01), Martin et al.
patent: 4666573 (1987-05-01), DuBois et al.
patent: 4680101 (1987-07-01), Darlington et al.
patent: 4720334 (1988-01-01), DuBois et al.
patent: 4731263 (1988-03-01), Martin et al.
patent: 4791081 (1988-12-01), Childress et al.
patent: 4853101 (1989-08-01), Hruska et al.
patent: 4990252 (1991-02-01), Tomaschke et al.
patent: 5069914 (1991-12-01), Gagliardi, Jr.
patent: 5082697 (1992-01-01), Patton et al.
patent: 5094895 (1992-03-01), Branca et al.
patent: 5136474 (1992-08-01), Sarangapani et al.
patent: 5183545 (1993-02-01), Branca et al.
patent: 5206279 (1993-04-01), Rowland et al.
Thin and composite high-flux membranes of perfluorosulfonated ion-exchange polymer vol. 54, pp. 51-61; Journal of Membrane Science (1990).
Structure and related properties of solution-cast perfluorosulfonated ionomer films; Macromolecules 1987 vol. 20 pp. 1425-1428.
Dissolution of Perfluorinated ion-containing polymers; Anal Chem. 1982 1639-1641, vol. 54.
Morphology and chemical properties of the Dow perfluorosulfoate ionomers; Macromolecules 1989 pp. 3593-3599 vol. 22.
Chemical and morphological properties of solution-cast perfluorosulfonated ionomers; Macromolecules 1988, pp. 1334-1139, vol. 21, No. 5.
Silane coupling agents for attaching nafion to glass and silica; Anal.Chem. 1986, pp. 661-662 vol. 58.
Rod like micellar structures in perfluorinated solutions J. Phys. France 1988, 2101-2109, vol. 49.
Swelling study of perfluorosulphonated ionomer membranes, Polymer 1993 vol. 34 No. 2.
Small angle neutron scattering of perfluorosulfonated ionomers in solution; Macromolecules 1986; pp. 2651-2653, vol. 19, No. 10.

Affiliated with

Also associated with

Rating

Processes for forming thin, durable coatings of perfluorocarbon does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Processes for forming thin, durable coatings of perfluorocarbon , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Processes for forming thin, durable coatings of perfluorocarbon will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-50582