Low melting polyurethane elastomers
A technology of elastomer and thermoplastic polyurethane, which is applied in the field of thermoplastic polyurethane elastomer composition, and can solve the problems such as the reduction of resilience of TPU elastomer
Inactive Publication Date: 2010-11-24
LUBRIZOL ADVANCED MATERIALS INC
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
As disclosed in U.S. Patent No. 6,221,999, this is because an increase in the content of 2,4'-MDI or 2,2'-MDI isomers results in an undesirably reduced resilience of the TPU elastomers produced therefrom
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment
[0050] Tables 1 and 2 illustrate various polyurethane elastomer formulations, Comparative Examples 1-6. Tables 3-8 list Examples 1-18 of the present invention.
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Abstract
The present invention relates generally to polyurethane elastomer compositions; and more preferably to thermoplastic polyurethane elastomer compositions. In one embodiment, the polyurethane elastomer compositions of the present invention have low melting points while still behaving in an elastomeric manner. In one embodiment, the polyurethane elastomer compositions of the present invention are prepared from the reaction of a polyol component, a polyisocyanate component, and a diol chain extender. In another embodiment, the polyurethane elastomer compositions of the present invention are prepared from the reaction of a polyester polyol component, a methylene diphenyl diisocyanate (MDI) component, and a linear diol chain extender having either 5 carbons or 7 or more carbons between the OH groups of the diol.
Description
technical field [0001] The present invention relates generally to polyurethane elastomer compositions; more preferably to thermoplastic polyurethane elastomer compositions. In a specific embodiment, the polyurethane elastomer composition of the present invention has a low melting point while still maintaining elastic properties. In a specific embodiment, the polyurethane elastomer composition of the present invention is prepared from the reaction of a polyol component, a polyisocyanate component and a diol chain extender. In another specific embodiment, a polyester polyol component, a methylene diphenyl diisocyanate (MDI) component, and a diol having 5 or 7 or more carbons between the OH groups of the diol Reaction of linear diol chain extenders to prepare the polyurethane elastomer compositions of the present invention. Background of the invention [0002] Thermoplastic polyurethane elastomers are generally produced by reacting polyol compounds with diisocyanates and chai...
Claims
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IPC IPC(8): C08G18/42C08G18/66C08G18/32
CPCC08G18/3206C08G18/664C08G18/4238
Inventor D·A·梅尔特泽
Owner LUBRIZOL ADVANCED MATERIALS INC