Title:
LOW-TEMPERATURE, HEAT-ACTIVATED ADHESIVES WITH HIGH HEAT RESISTANCE PROPERTIES
Document Type and Number:
WIPO Patent Application WO2002024775
Kind Code:
A3
Abstract:
The present invention is directed to a polymer component having controlled branching, formed from the reaction product of a prepolymer and a chain extender, which prepolymer is itself formed form the reaction product of a mixture of a non-self-associating isocyanate component, a diol component having a molecular weight from about 1500 to 6000 grams/mole and present in an amount greater than about 50 % by weight based on the total weight of the prepolymer, and an ion-forming compound, where the chain extender includes an amine-containing compound and is present in an amount sufficient to react with at least about 99 % of the isocyanate groups present after the prepolymer has been formed, wherein the controlled branching of the polymer includes at least one of: a hydroxy-functional component having hydroxyl functionality greater than 2.0 and a molecular weight from about 700 to 2000; or a low molecular weight component having more than two hydroxyl groups. Methods of making and using such dispersion compositions are also included.
Inventors:
KOBYLANSKA IRINA
KONKUS DAVID M
LEY DAVID A
KONKUS DAVID M
LEY DAVID A
Application Number:
PCT/US2001/029083
Publication Date:
June 06, 2002
Filing Date:
September 18, 2001
Export Citation:
Assignee:
CYTEC TECH CORP (US)
International Classes:
C08G18/08; C08G18/10; C08G18/12; C08G18/32; C08G18/42; C08G18/66; C08G18/72; C08G18/76; C09J175/04; (IPC1-7): C08G18/08; C08G18/12; C08G18/66; C08G18/76; C09J175/04
Foreign References:
| US5912299A | 1999-06-15 | |||
| US5817733A | 1998-10-06 | |||
| US5494960A | 1996-02-27 |
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