Thermosetting resin compositions prepared from isocyanates and e

Details Thermosetting resin compositions prepared from isocyanates and e Thermosetting resin compositions prepared from isocyanates and e

1974-06-25

1976-10-05

Lee, Lester L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 37EP, 260 37N, 260 47CB, 260 49, 260 50, 260831, 260838, C08G 1806, C08G 1858

Patent

active

039843769

ABSTRACT:
Thermosetting resin compositions are obtained by mixing a resinous addition product produced by reacting an isocyanate compound having a molecular weight of 100 to 2000 and containing at least two isocyanate groups in its molecule with an epoxyphenol compound represented by the formula, ##EQU1## wherein R is a bi- or more valent group containing phenyl, R.sub.1 is hydrogen, methyl or ethyl, m and n each are an integer of 1-8, and optionally an ordinary thermosetting epoxy resin, and 0.01 to 10 % by weight of a basic heterocycle forming catalyst based on the weight of said resinous addition product, said isocyanate compound and said epoxyphenol compound being blended so that said OH group may be present in an amount of 1/3 to 1 equivalent per equivalent of said isocyanate group and said epoxy group may be present in an amount of one-fifth to two-thirds equivalent per equivalent of said isocyanate group. The said addition product can be converted into a stable B-stage and is particularly useful as a varnish for prepreg.

REFERENCES:
patent: 2946767 (1960-07-01), Gassmann
patent: 3020262 (1962-02-01), Speranza
patent: 3471442 (1969-10-01), DiLeone
patent: 3682845 (1972-08-01), Longley et al.

Affiliated with

Also associated with

Rating

Thermosetting resin compositions prepared from isocyanates and e does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thermosetting resin compositions prepared from isocyanates and e, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermosetting resin compositions prepared from isocyanates and e will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-654252