Invention Grant
- Patent Title: Lightweight, reduced density fire rated gypsum panels
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Application No.: US17096551Application Date: 2020-11-12
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Publication No.: US11780113B2Publication Date: 2023-10-10
- Inventor: Qiang Yu , Srinivas Veeramasuneni , Weixin D. Song , Wenqi Luan
- Applicant: United States Gypsum Company
- Applicant Address: US IL Chicago
- Assignee: United States Gypsum Company
- Current Assignee: United States Gypsum Company
- Current Assignee Address: US IL Chicago
- Agency: Leydig, Voit & Mayer, Ltd.
- Main IPC: B28B1/50
- IPC: B28B1/50 ; C04B20/06 ; C04B28/14 ; B32B38/00 ; B28B11/12 ; B28B11/24 ; B32B5/16 ; B32B9/00 ; E04B1/94 ; E04C2/04 ; C04B111/00 ; C04B111/28

Abstract:
A reduced weight, reduced density gypsum panel that includes high expansion vermiculite with fire resistance capabilities that are at least comparable to (if not better than) commercial fire rated gypsum panels with a much greater gypsum content, weight and density.
Public/Granted literature
- US20210060816A1 LIGHTWEIGHT, REDUCED DENSITY FIRE RATED GYPSUM PANELS Public/Granted day:2021-03-04
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