Active Polymer Modification of Bitumen for Use in Roofing Materials

A modified bitumen consisting of a polyurethane wherein the polyisocyanate or polyisocyanate-dominated polyurethane prepolymer (or prepolymers) is first reacted with the bitumen to take advantage of the bitumen's hydroxyl and amine functionality and form an isocyanate-bitumen adduct to form a w...

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Bibliographic Details
Main Authors Smith, Jason D, Rus, Melissa, Sokol, David, Holland, Julia, Mellott, II, Joseph W
Format Patent
LanguageEnglish
Published 13.06.2019
Subjects
BUILDING
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
FIXED CONSTRUCTIONS
GUTTERS
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
ROOF COVERINGS
ROOF-WORKING TOOLS
SKY-LIGHTS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:A modified bitumen consisting of a polyurethane wherein the polyisocyanate or polyisocyanate-dominated polyurethane prepolymer (or prepolymers) is first reacted with the bitumen to take advantage of the bitumen's hydroxyl and amine functionality and form an isocyanate-bitumen adduct to form a weatherproofing product.
Bibliography:Application Number: US201916245684