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US 5,668,243 AGranted
Polyesters modified with 1,4-cyclohexanedimethanol having high clarity prepared utilizing an antimony containing catalyst/stabilizer system
AssigneeEastman Chemical Company
InventorsCheuk Chung Yau, Leslie Shane Moody
Life of this patent
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Abstract
This invention relates to a polyester resin prepared by adding one or more dicarboxylic acid components to one or more glycol components containing 1,4-cyclohexanedimethanol equalling 100 mole %, the polyester resin having been prepared in the presence of a catalyst/stabilizer system consisting essentially of antimony compounds and phosphorous compounds and compounds selected from the group consisting essentially of zinc compounds, gallium compounds, and silicon compounds.
Claims16
A polyester resin comprising organic and inorganic dyes,
- wherein one or more dicarboxylic acid components are added to one or more glycol components;
- wherein said one or more dicarboxylic acid components is selected from the group consisting of aliphatic dicarboxylic acids having a total of from 3 to 16 carbon atoms, alicyclic dicarboxylic acids having 7 to 12 carbon atoms, aromatic dicarboxylic acids containing a total of from 8 to 16 carbon atoms, and combinations thereof;
- wherein said 0.5 mole % or more of said one or more glycol components is 1,4-cyclohexanedimethanol;
- wherein the remaining 99.5 mole % or less of said one or more glycol components is selected from the group consisting of glycols other than 1,4-cyclohexanedimethanol having from 2 to 12 carbon atoms, glycol ethers having from 4 to 12 carbon atoms, and combination thereof, the total mole percentages of said one or more glycol components equalling 100 mole %;
- and
- wherein said polyester resin is prepared in the presence of a catalyst/stabilizer system consisting essentially of one or more antimony compounds and one or more phosphorous compounds and one or more compounds selected from the group consisting essentially of zinc compounds, gallium compounds, and silicon compounds.
3 more elements
Dependencies are inferred from the claim text.