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 Sokol David, Holland Julia, Mellott, II Joseph W, Rus Melissa, Smith Jason D
Format Patent
LanguageEnglish
Published 29.08.2017
Subjects
BUILDING
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
FIXED CONSTRUCTIONS
GUTTERS
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: US201615375462