Abstract: The present invention relates to the use of sacrificial agents to counteract the deleterious impact of gypsum contaminants on the effectiveness of certain stucco additives, particularly, water reducing agents and foaming agents, in a stucco slurry used to make gypsum wallboard.
Type:
Application
Filed:
August 5, 2014
Publication date:
July 27, 2017
Applicant:
Boral IP Holdings (Australia) Pty Limited
Abstract: Inorganic polymer compositions and methods for their preparation are described herein. The compositions include the reaction product of a reactive powder, an activator, and optionally a retardant. The reactive powder includes fly ash, calcium sulfoaluminate cement, and less than 10% by weight portland cement. In some examples, the composition is substantially free from alkanolamines. In some examples, the ratio of water to reactive powder is from 0.06:1 to less than 0.2:1. Also described herein are building materials including the compositions.
Type:
Grant
Filed:
November 30, 2011
Date of Patent:
October 21, 2014
Assignee:
Boral IP Holdings (Australia) Pty Limited
Inventors:
Redmond Richard Lloyd, Louise Margaret Keyte, Russell L. Hill, Zhaozhou Zhang, Mark Hollett, Li Ai
Abstract: Inorganic polymer compositions and methods for their preparation are described herein. The compositions include the reaction product of a reactive powder, an activator, and optionally a retardant in the presence of water and an aerating agent. The reactive powder includes 85% or greater fly ash. The aerating agent can be a blowing agent, a foaming agent, or a mixture of these. Also described herein are building materials including the compositions.
Type:
Grant
Filed:
October 5, 2012
Date of Patent:
August 5, 2014
Assignee:
Boral IP Holdings (Australia) Pty Limited
Inventors:
Russell L. Hill, Zhaozhou Zhang, Mark Joseph Hollett, Li Ai