Esters of tetracarboxylic acids and resins derived therefrom
AssigneeICI Americas Inc.
InventorErich Kuehn
Life of this patent
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Abstract
Esters of tetracarboxylic acids having the following general formula: (RO.sub.2 C').sub.2 .dbd.X.dbd.(C"O.sub.2 R').sub.2 wherein .dbd.X.dbd. is selected from tetravalent 5 or 6 membered or a double 6 membered ring system and wherein C' and C" carbons are attached to separate pairs of vicinal carbons and R and R' are selected from halogenated organic radicals containing at least 2 atoms of chlorine or bromine and the other of each R and R' is selected from --H, --CH.sub.2 CH(OH)CH.sub.2 O.sub.2 CCR".dbd.CH.sub.2, and --CH[CH.sub.2 (OH)]CH.sub.2 O.sub.2 CCR".dbd.CH.sub.2 are useful in the preparations of high molecular weight polymers and copolymers which are improved in fire retardance and strength.
Claims12
A polymerizable composition comprising a carbocyclic tetracarboxylic ester monomer useful for imparting flame retardance to resins made therefrom and having a general formula:
- (RO.sub.2 C').sub.2 .dbd.X.dbd.(C"O.sub.2 R').sub.2
- wherein .dbd.X.dbd. is selected from a tetravalent 5- or 6-membered single- ring system wherein the C' carbons are attached to a pair of vicinal carbons in said ring system and the C" carbons are attached to another pair of vicinal carbons in said ring system which one each of R and R' is a halogenated ethylenically unsaturated organic radical containing at least two atoms selected from the group consisting of chlorine and bromine and the other of each R an R' is selected from the group consisting of --H,CH.sub.2 CH(OH)CH.sub.2 O.sub.2 CCR".dbd.CH.sub.2, and CH[CH.sub.2 (OH)]-CH.sub.2 O.sub.2 CCR".dbd.CH.sub.2, wherein R" is --H or --CH.sub.3 ;
- one or more ethylenically unsaturated monomers and an ethylenically unsaturated resin selected from the group consisting of polyesters, polyurethanes, polyepoxy condensation products, polyethers, epoxidized polybutadienes and polyisocyanurates.
Dependencies are inferred from the claim text.