Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1981-10-08
1984-01-03
Cockeram, H. S.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
528 59, 528 73, 2643281, C08G 1858, C08G 1834, C08G 1880, C08G 5942
Patent
active
044243162
ABSTRACT:
Reaction of a diepoxide with a mono-, or, preferably, dicarboxylic acid yields a prepolymer having both hydroxy and epoxy groups. This prepolymer, when reacted with a polyisocyanate, yields a poly(oxazolidone/urethane) thermoset composition which is substantially free of isocyanurate linkages. The thermoset contains oxazolidone linkages in its backbone which are separated from one another by ester linkages. Urethane linkages are present in side chains attached to the polymer backbone of the thermoset.
REFERENCES:
patent: 2830038 (1958-04-01), Pattison
patent: 3238273 (1966-03-01), Hampson et al.
patent: 3242108 (1966-03-01), McGary et al.
patent: 3313747 (1967-04-01), Schramm
patent: 3373221 (1968-03-01), May
patent: 3445436 (1969-05-01), Lake et al.
patent: 3484413 (1969-12-01), Kaufman
patent: 3639655 (1972-02-01), Jones
patent: 3761452 (1973-09-01), Dawson
patent: 3781235 (1973-12-01), Trott et al.
patent: 3847874 (1974-11-01), Murakami et al.
patent: 4066628 (1978-01-01), Ashida et al.
patent: 4070416 (1978-01-01), Narahara et al.
patent: 4143009 (1979-03-01), Dewey
patent: 4162274 (1979-07-01), Rosenkrantz
patent: 4220731 (1980-09-01), Zuppinger
patent: 4239857 (1980-12-01), Harper
Lee, Article in Rubber Chemistry and Techn., vol. 53, Jul.-Aug. 1980, No. 3, pp. 542-599.
DiSalvo Anthony L.
Yu Arthur J.
Cockeram H. S.
Fennelly Richard P.
Stauffer Chemical Company
LandOfFree
Compositions for forming poly(oxazolidone/urethane) thermosets a does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Compositions for forming poly(oxazolidone/urethane) thermosets a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compositions for forming poly(oxazolidone/urethane) thermosets a will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1032369