Patent ID: 6306923
Filing Date: 2001-10-23
Classification: C08F,C08G,C09D

Abstract:
Compositions polymerizable and/or crosslinkable by ultraviolet or visible light, comprising at least one compound (A) containing electron depleted olefinic double bonds; and at least one compound (B) containing electron enriched olefinic double bonds, wherein said at least one compound (A) is selected from the group consisting of prepolymers having maleimide functional groups (f): ##STR16##wherein each of Rand R.sup.2 represents independently H, a C.sub.1 -C.sub.12 alkyl group, or a halogen,being prepared by reacting:at least one maleic anhydride represented by formula (I): ##STR17##at least one amino functional compound (II) having at least one --NH.sub.2 functional group and at least one other functional group F selected from the group consisting of --OH, --NH.sub.2, --NH--, --COOH, ##STR18##whereinR.sup.3 is a C.sub.1 -C.sub.5 alkyl group;at least one compound (III) to form the chain of the prepolymers by polycondensation and/or polyaddition, said compounds (III) being defined as:when the N-substituted maleimide has a functional group F which is --OH, NH.sub.2 or --NH--, said compound (III) comprises(a) at least one compound selected from the group consisting of a polyacid, a cyclic anhydride; and mixtures thereof;(b) at least one compound selected from the group consisting of a polyol, a mono- or polyfunctional epoxy, a polyamine, and a polyisocyanate; or(c) at least one polyisocyanate; or at least one polyisocyanate and at least one compound selected from the group consisting of a polyol, a mono- or polyfunctional epoxy, a polyacid, a cyclic anhydride, and a polyamine;when the N-substituted maleimide has a functional group F which is --COOH, said compound (III) comprises(a) at least one compound selected from the group consisting of a polyol, a mono- or polyfunctional epoxy, and a polyamine; or(b) at least one compound selected from a polyol a mono- or a polyfunctional epoxy and a polyamine; and at least one compound selected from a polyacid, a cyclic anhydride and a polyisocyanate; or(c) of at least one polyisocyanate; or(d) at least one polyisocyanate and at least one compound selected from a polyol, a mono-or polyfunctional epoxy, a polyacid, a cyclic anhydride and a polyamine;when the N-substituted maleimide has a functional group F which is --C(O)--O--R.sup.3 said compound (III) comprises(a) at least one compound allowing transesterification, having a functional group --OH and at least one other functional group selected from the group consisting of --OH, --NH-- and --COOH; wherein when said other functional group is --OH or --NH--, the compounds (III) are(i) at least one compound selected from the group consisting of a polyacid and a cyclic anhydride and at least one compound selected from the group consisting of a polyol, a mono- or polyfunctional epoxy, a polyamine, and a polyisocyanate; or(ii) at least one polyisocyanate; or(iii) at least one polyisocyanate and at least one compound selected from the group consisting of a polyol, a mono- or polyfunctional epoxy, a polyacid, a cyclic anhydride and a polyamine; andwherein when said other functional group is --COOH, the compounds (III) comprise(i) at least one compound selected from the group consisting of a polyol, a mono- or polyfunctional epoxy and a polyamine; or(ii) at least one compound selected from the group consisting of a polyol, a mono- or polyfunctional epoxy and a polyamine; and at least one compound selected from a polyacid, a cyclic anyhydride and a polyisocyanate; or(iii) at least one polyisocyanate; or(iv) a polyisocyanate and at least one compound selected from the group consisting of a polyol, a mono- or polyfunctional epoxy, a polyacid, a cyclic anhydride and a polyamine.when the N-substituted maleimide has a functional group F which is --O--C(O)--R.sup.3, the compounds (III) comprise(a) at least one compound allowing transesterification, having an acid functional group and at least one other functional group selected from the group consisting of --OH, --NH-- and --COOH; whereinwhen said another functional group is --OH or --NH, the compounds (III) comprise(i) at least one compound selected from the group consisting of a polyacid and cyclic anhydride; and at least one compound selected from the group consisting of a polyol, a mono- or polyfunctional epoxy, a polyamine, and a polyisocyanate; or(ii) at least one polyisocyanate; or(iii) a polyisocyanate and at least one compound selected from the group consisting of a polyol, a mono- or polyfunctional epoxy a polyacid, a cyclic anhydride and a polyamine;when said other functional group is --COOH, the compounds (III) comprise(i) at least one compound selected from the group consisting of a polyol, a mono- or polyfunctional epoxy, and a polyamine; or(ii) at least one compound selected from the group consisting of a polyol, a mono- or polyfunctional epoxy and a polyamine; and at least one compound selected from the group consisting of a polyacid, a cyclic anhydride and a polyisocyanate; or(iii) at least one polyisocyanate; or(iv) at least one polyisocyanate and at least one compound selected from the group consisting of a polyol, a mono- or polyfunctional epoxy, a polyacid, a cyclic anhydride and a polyamine;said compounds (II) having first reacted with said maleic anhydrides (I) in order to open the maleic anhydride rings to form F functional compounds having groups of the formula (f'): ##STR19##heating to form maleimides N-substituted by groups having a functional group F; andreacting said maleimides N-substituted by groups having a functional group F with at least one polyfunctional compound III, said compound III having functional groups reactive with said functional group F, without gelation of the reaction medium.