Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Reexamination Certificate
2006-12-12
2006-12-12
Hightower, P. Hampton (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
C528S125000, C528S126000, C528S128000, C528S170000, C528S171000, C528S172000, C528S173000, C528S176000, C528S179000, C528S183000, C528S185000, C528S220000, C528S229000, C528S350000, C528S351000, C528S352000, C528S353000, C525S432000, C525S434000, C525S436000
Reexamination Certificate
active
07148314
ABSTRACT:
A method for preparation of a sulfonic and or sulfonic acid salt containing polyimide resins comprising melt reaction of a polyimide resin with an organic compound, wherein the organic compound contains at least one aliphatic primary amine functionality and at least one other functionality selected from the group consisting of sulfonic acids, sulfonic acid salts or mixtures thereof.
REFERENCES:
patent: 2991273 (1961-07-01), Hechelhammer et al.
patent: 2999835 (1961-09-01), Goldberg
patent: 3028365 (1962-04-01), Schnell et al.
patent: 3148172 (1964-09-01), Fox
patent: 3153008 (1964-10-01), Fox
patent: 3271367 (1966-09-01), Schnell et al.
patent: 3271368 (1966-09-01), Goldberg et al.
patent: 4217438 (1980-08-01), Brunelle et al.
patent: 4574144 (1986-03-01), Yates et al.
patent: 4588805 (1986-05-01), Williams, Jr.
patent: 5618334 (1997-04-01), Ozcayir et al.
patent: 5725633 (1998-03-01), Ozcayir et al.
patent: 5744575 (1998-04-01), Nakanishi et al.
patent: 6245881 (2001-06-01), Faure et al.
patent: 2005/0070684 (2005-03-01), Gallucci et al.
Gallucci Robert R.
Smith Tara J.
General Electric Company
Hampton Hightower P.
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