Modified epoxy resins

Details Modified epoxy resins Modified epoxy resins

C - Chemistry, Metallurgy

08

L

400/4303, 400/55

C08L 9/02 (2006.01) C08G 18/10 (2006.01) C08G 18/12 (2006.01) C08G 18/63 (2006.01) C08G 18/69 (2006.01) C08G 59/02 (2006.01) C08L 63/00 (2006.01) C08L 75/00 (2006.01) C08L 75/04 (2006.01) C08L 75/14 (2006.01) C09J 175/14 (2006.01)

Patent

CA 1334700

Compositions are described which contain A) a liquid copolymer based onbutadiene, a polar, ethylenically unsaturated comonomer and optional a further ethylenically unsaturated comonomer, and B) a compound of the formula I Image (I), in which m is 2 to 6, R1 is the m-valent radial of an elastomeric pre- polymer after removal of the terminal isocyanate, amino or hydroxyl groups, which is soluble or dispersible in epoxy resins, X is -O- or -NR2-, where R2 is hydrogen, C1-C6alkyl or phenyl, Y is -O-, R3 is the radical of a monophenol or of an aliphatic or cycloaliphatic mercapto- alcohol after removal of one hydroxyl group, or Y and R3 form jointly the radical of an aliphatic lactam which is attached to the carbonyl group via the N atom, with the proviso that at least one of the groups -X- or -Y-R3 contain a nitrogen atom. The compositions may be used to render epoxy resins more flexible.

596722

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