Invention Grant
- Patent Title: Roofing shingles, tiles and shakes
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Application No.: US17099211Application Date: 2020-11-16
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Publication No.: US11326348B2Publication Date: 2022-05-10
- Inventor: Choung-Houng Lai , Mithun N. Kamath , Jia Liu , Liyan Ma , Gregory F. Jacobs
- Applicant: CertainTeed LLC
- Applicant Address: US PA Malvern
- Assignee: CertainTeed LLC
- Current Assignee: CertainTeed LLC
- Current Assignee Address: US PA Malvern
- Agency: McDonnell Boehnen Hulbert & Berghoff LLP
- Main IPC: E04D1/20
- IPC: E04D1/20 ; E04D5/02 ; E04D7/00 ; B32B5/18 ; B32B5/30 ; B32B7/12 ; B32B27/14 ; B32B27/20 ; B32B27/30 ; B32B27/40 ; B32B27/06

Abstract:
The present disclosure relates generally to roofing elements and methods for making them. In one embodiment, the disclosure provides a roofing element in the form of a roofing shingle that includes a body of a foamed cured cross-linked polymer, the body having a top surface and a bottom surface, the body extending substantially in a plane and having a thickness in the range of 0.5 mm to 35 mm; and a layer of weather-resistant roofing granules disposed on and adhered at the top surface of roofing element. The roofing element can be made by providing a body of wet foamed curable composition, and allowing the curable composition to cure to provide the body of foamed cured cross-linked polymer.
Public/Granted literature
- US20210071422A1 Roofing Shingles, Tiles and Shakes Public/Granted day:2021-03-11
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