Active polymer modification of bitumen for use in roofing materials

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United States of America Patent

PATENT NO 9745473
SERIAL NO

15375462

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
GARLAND INDUSTRIES INC3800 EAST 91ST STREET CLEVELAND DE 44105

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Holland, Julia Cleveland, US 8 36
Mellott,, II Joseph W Stow, US 10 102
Rus, Melissa Cleveland, US 33 186
Smith, Jason D Strongsville, US 19 295
Sokol, David Vermillion Township, US 22 135

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