RIM ELASTOMERS WITH IMPROVED HEAT DISTORTION AND TEAR PROPERTIES

RIM ELASTOMERS WITH IMPROVED HEAT DISTORTION AND TEAR PROPERTIES

RIM ELASTOMERS WITH IMPROVED HEAT DISTORTION AND TEAR PROPERTIES (D#75, 797-F) The invention covers a method for making reaction injection molded polyurethanes of improved properties. The elastomeric products having superior heat distortion and tear properties comprise the reaction product of an aro...

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Hauptverfasser: CUSCURIDA, MICHAEL, DOMINGUEZ, RICHARD J.G, RICE, DORIS M
Format: Patent
Sprache:eng ; fre
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CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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creator CUSCURIDA, MICHAEL
DOMINGUEZ, RICHARD J.G
RICE, DORIS M
description RIM ELASTOMERS WITH IMPROVED HEAT DISTORTION AND TEAR PROPERTIES (D#75, 797-F) The invention covers a method for making reaction injection molded polyurethanes of improved properties. The elastomeric products having superior heat distortion and tear properties comprise the reaction product of an aromatic polyisocyanate, a high molecular weight polyol and a chain extending agent. Said polyol providing said improved properties is a poly(oxybutyleneoxyethylene) glycol having a molecular weight range of about 2,000-6,000. The polyurethane elastomer is prepared by injecting the above three agents through a RIM head into a mold cavity of the desired configuration. Reaction injection molded elastomers are useful as molded articles of commerce including, but not limited to, vehicle body parts. -I-
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The elastomeric products having superior heat distortion and tear properties comprise the reaction product of an aromatic polyisocyanate, a high molecular weight polyol and a chain extending agent. Said polyol providing said improved properties is a poly(oxybutyleneoxyethylene) glycol having a molecular weight range of about 2,000-6,000. The polyurethane elastomer is prepared by injecting the above three agents through a RIM head into a mold cavity of the desired configuration. 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subjects CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
title RIM ELASTOMERS WITH IMPROVED HEAT DISTORTION AND TEAR PROPERTIES
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