Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1982-09-16
1984-06-12
Schofer, Joseph L.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
427140, 4273881, 4273898, 4273899, 427422, 4273936, 521 28, B32B 3500, B32B 2706, B32B 2712, B32B 2728
Patent
active
044539916
ABSTRACT:
A process is provided for making a liquid composition of a perfluorinated polymer having sulfonic acid or sulfonate groups in a liquid medium by contacting the polymer with a mixture of 25 to 100% by weight of water and 0 to 75% by weight of a second liquid component such as a lower alcohol, e.g., propanol or methanol, at a temperature of at least 180.degree. C. (at least 240.degree. C. when about 90% to 100% water is used), in a closed system. The liquid composition made by this process, or modified liquid products prepared therefrom, are used in coating various substrates, in casting films, and in repairing perfluorinated ion exchange films and membranes. The process is also useful in recovering perfluorinated polymer having sulfonic acid or sulfonate groups from scraps and used articles made of such polymer or containing such polymer as a component part thereof.
REFERENCES:
patent: 3282875 (1966-11-01), Connolly et al.
patent: 3301893 (1967-01-01), Putnam et al.
patent: 3321445 (1967-05-01), Lazerte et al.
patent: 3341366 (1967-09-01), Hodgdon et al.
patent: 3684747 (1972-08-01), Coalson et al.
patent: 3692569 (1972-09-01), Grot
patent: 3849243 (1974-11-01), Grot
patent: 3853720 (1974-12-01), Korach et al.
patent: 3853721 (1974-12-01), Darlington et al.
patent: 4038213 (1977-07-01), McClure et al.
patent: 4052475 (1977-10-01), McClure et al.
patent: 4056578 (1977-11-01), McClure et al.
patent: 4060565 (1977-11-01), McClure et al.
patent: 4065515 (1977-12-01), McClure et al.
patent: 4165440 (1979-08-01), Kim
patent: 4246353 (1981-01-01), Miyauchi et al.
patent: 4259226 (1981-03-01), Suhara et al.
Boundy & Boyer, "Styrene, Its Polymers, Copolymers and Derivatives", p. 680, Reinhold, 1952.
Solomon, "The Chemistry of Organic Film Farmers", pp. 287-291, Wiley, 1967.
E. I. Du Pont de Nemours and Company
Kulkosky Peter F.
Schofer Joseph L.
LandOfFree
Process for making articles coated with a liquid composition of does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for making articles coated with a liquid composition of , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for making articles coated with a liquid composition of will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-120114