Invention Grant
- Patent Title: Gypsum composition comprising uncooked starch having mid-range viscosity, and methods and products related thereto
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Application No.: US17306460Application Date: 2021-05-03
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Publication No.: US11773020B2Publication Date: 2023-10-03
- Inventor: Yijun Sang , Brian J. Christ
- 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: Greer, Burns & Crain, Ltd.
- Agent Philip T. Petti; Pradip Sahu
- Main IPC: C04B24/10
- IPC: C04B24/10 ; B32B13/02 ; C04B24/38 ; C04B28/14 ; E04B2/72 ; C08B31/06 ; C08L3/02 ; C08L3/06 ; C04B2/02 ; C04B111/00
Abstract:
Disclosed are product (e.g., board), slurry, and methods relating to an uncooked starch that can be used to enhance strength in one or more gypsum layers in the board. The uncooked starch has a hot water viscosity of from about 20 BU to about 300 BU according to the HWVA method, and/or a mid-range peak viscosity of from about 120 Brabender Units to about 1000 Brabender Units.
Public/Granted literature
Information query
