REACTIVE POLYURETHANE PLASTICIZERS AND ADHESIVES MADE THEREFROM

A reactive plasticizer is comprised of a reaction product of an isocyanate having two isocyanate groups and a linear polyether monol. The monol has a weight average molecular weight of about 500 to about 2000 grams/mole. The amount of isocyanate and linear polyether monol are such that the isocyanat...

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Bibliographic Details
Main Authors ZHOU, Lirong, SOPHIEA, Daniel P, YOUNG, Caitlin E
Format Patent
LanguageEnglish
French
German
Published 14.03.2018
Subjects
ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE
ADHESIVES
CHEMISTRY
COMPOSITIONS BASED THEREON
DYES
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL
ORGANIC MACROMOLECULAR COMPOUNDS
PAINTS
POLISHES
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF MATERIALS AS ADHESIVES
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Summary:A reactive plasticizer is comprised of a reaction product of an isocyanate having two isocyanate groups and a linear polyether monol. The monol has a weight average molecular weight of about 500 to about 2000 grams/mole. The amount of isocyanate and linear polyether monol are such that the isocyanate groups are in molar excess of the amount of alcohol groups and the reaction product has an isocyanate content of 0.1% to 1% by weight of the reaction product, The reactive plasticizer is particularly useful for formulating one part moisture cured polyurethane adhesives comprised of the reactive filler, an isocyanate terminated prepolymer, filler and a catalyst.
Bibliography:Application Number: EP20160721053