Invention Grant
- Patent Title: Light weight gypsum board
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Application No.: US17724025Application Date: 2022-04-19
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Publication No.: US11884040B2Publication Date: 2024-01-30
- Inventor: Qiang Yu , Weixin D. Song
- 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.
- Agent Philip T. Petti; Pradip K. Sahu
- Main IPC: C04B28/14
- IPC: C04B28/14 ; B32B13/08 ; B32B3/26 ; B32B5/02 ; B32B13/14 ; B32B17/02 ; B32B29/00 ; C04B111/00 ; C04B111/40
Abstract:
This invention provides gypsum wallboards with a unique microstructure where the walls between voids are enhanced in thickness and strength to substantially improve the strength and handling properties of the wallboards. A method of making lightweight gypsum wallboards is also provided.
Public/Granted literature
- US20220242092A1 LIGHT WEIGHT GYPSUM BOARD Public/Granted day:2022-08-04
Information query
