Invention Grant
US07767019B2 Gypsum products utilizing a two-repeating unit dispersant and a method for making them
有权
采用双重重复单元分散剂的石膏产品及其制备方法
- Patent Title: Gypsum products utilizing a two-repeating unit dispersant and a method for making them
- Patent Title (中): 采用双重重复单元分散剂的石膏产品及其制备方法
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Application No.: US11449924Application Date: 2006-06-09
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Publication No.: US07767019B2Publication Date: 2010-08-03
- Inventor: Qingxia Liu , Michael P. Shake , David R. Blackburn , John W. Wilson , Brian Randall , Dennis M. Lettkeman
- Applicant: Qingxia Liu , Michael P. Shake , David R. Blackburn , John W. Wilson , Brian Randall , Dennis M. Lettkeman
- 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 David F. Janci, Esq.; Pradip Sahu, Esq.
- Main IPC: C04B11/00
- IPC: C04B11/00 ; C04B24/04
Abstract:
A gypsum slurry includes water, a hydraulic component including stucco and a polycarboxylate dispersant. The dispersant has two repeating units wherein the first repeating unit is an olefinic unsaturated mono-carboxylic acid repeating unit or an ester or salt, and the second repeating unit is a vinyl or allyl group bound to a polyether by an ether linkage. The slurry can be made into a gypsum panel.
Public/Granted literature
- US20060278130A1 Gypsum products utilizing a two-repeating unit dispersant and a method for making them Public/Granted day:2006-12-14
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