C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
402/291, 260/306
C07D 487/10 (2006.01) C08G 59/06 (2006.01) C08G 59/26 (2006.01)
Patent
CA 1335596
A 1,6-diazaspiro[4,4]nonane-2,7-dione derivative having the formula I: Image (I) in which B has the formula II: Image (II) wherein s) Z1, Z2, Z3, Z4 are independently - C(Z')2 in which Z' independently is hydrogen or C1-4 alkyl, or - such that two adjacent Z atoms form part of a benzene ring; b) each R is independently a bivalent group of the formula III or IV: Image or Image (III) (IV) wherein A is a substituent replacing hydrogen selected independently from a C1-4 alkyl or halogen atom, n independently is 0, 1 or 2 and the free valence bond of C* is linked with a ring nitrogen atom of the spirodilactam of the formula II; c) m ? O; d) each X independently is hydrogen or a glycidyl-, acrylyl-, methacrylyl-, allyl- or propargyl group, with the proviso that when X is acrylyl, methacrylyl, allyl or propargyl then m is 0; e) Y is 2-hydroxy-1,3-propadiyl; f) each P independently is a divalent radical derived from a dihydric aromatic alcohol; g) p is on average of from 0 to 3; with the proviso that when R is a bivalent group of the formula III and simultaneously Z2 and Z3 are each CH2 and simultaneously Z1 and Z4 are each independently hydrogen or a C1-4 alkyl, then each X is not hydrogen or glycidyl. Ether derivatives of the compounds of the invention find utility as thermosetting resins which are employed in the production of cured or crosslinked products useful as surface coatings, in adhesive formulations and in fibre-reinforced composites.
608975
Shell Canada Limited
Smart & Biggar
Wang Pen Chung
LandOfFree
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