- Patent Title: Active polymer modification of bitumen for use in roofing materials
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Application No.: US17024935Application Date: 2020-09-18
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Publication No.: US11926738B2Publication Date: 2024-03-12
- Inventor: Jason D. Smith , Joseph W. Mellott, II , Melissa Rus , David Sokol , Julia Holland
- Applicant: Garland Industries, Inc.
- Applicant Address: US OH Cleveland
- Assignee: Garland Industries, Inc.
- Current Assignee: Garland Industries, Inc.
- Current Assignee Address: US OH Independence
- Agency: UB Greensfelder LLP
- Agent Brian E. Turung
- The original application number of the division: US14624672 2015.02.18
- Main IPC: C08L95/00
- IPC: C08L95/00 ; C08G18/44 ; C08G18/69 ; E04D5/10
Abstract:
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.
Public/Granted literature
- US20210002485A1 Active Polymer Modification of Bitumen for Use in Roofing Materials Public/Granted day:2021-01-07
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