High dimensional stability polyester compositions
AssigneeInvista North America S.A R.L.
InventorsSimon Paul Bradshaw, Peter John Coleman, Stephen Derek Jenkins, Sanjay Mehta, Lon J. Mathias
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Abstract
The invention relates to a composition comprising a polyester, a photoreactive comonomer and a co-reactant, wherein the co-reactant comprises at least one member selected from the group consisting of an unsaturated diol, an unsaturated aliphatic diacid, an unsaturated aromatic diacid, an unsaturated aliphatic ester, an unsaturated aromatic ester, an unsaturated anhydride and mixtures thereof. Other aspects of the present invention include articles produced from these compositions and processes for producing these compositions.
Claims27
A composition comprising a polyester, a photoreactive comonomer and a co-reactant, wherein said co-reactant comprises at least one member selected from the group consisting of an unsaturated diol, an unsaturated aliphatic diacid, an unsaturated aromatic diacid, an unsaturated aliphatic ester, an unsaturated aromatic ester, an unsaturated anhydride and mixtures thereof.
An article comprising a polyester, a photoreactive comonomer and a co-reactant, wherein said co-reactant comprises at least one member selected from the group consisting of an unsaturated diol, an unsaturated aliphatic diacid, an unsaturated aromatic diacid, an unsaturated aliphatic ester, an unsaturated aromatic ester, an unsaturated anhydride and mixtures thereof.
A method for producing a polyester article comprising:
- a) copolymerizing
- i) an alkane diol or cycloalkane diol;
- ii) an aliphatic dicarboxylic acid, a cycloaliphatic dicarboxylic acid or an aromatic dicarboxylic acid;
- iii) a photoreactive comonomer comprising at least one member selected from the group consisting of a diol of benzophenone, a dicarboxylic acid of benzophenone, a dicarboxylic ester of benzophenone, an anhydride of benzophenone and mixtures thereof;
- and
- iv) a co-reactant comprising at least one member selected from the group consisting of an unsaturated diol, an unsaturated aliphatic diacid, an unsaturated aromatic diacid, an unsaturated aliphatic ester, an unsaturated aromatic ester, an unsaturated anhydride and mixtures thereof
- to form a polyester;
- b) optionally compounding at least one member selected from the group consisting of a filler, an additive and mixtures thereof with said copolymerized polyester;
- c) molding said article from said polyester, and
- d) UV curing said article.
Dependencies are inferred from the claim text.