Patent · US Expired

Gypsum composition with ionic styrene butadiene latex additive

US6525116B2 · kind B2 · utility

1Cited by

39References

42Claims

0Family size

Assignee

National Gypsum Properties, LLC · US

Inventors

Gopalakrishnan Sethuraman · East Amherst, US
W. Roy Burke · Tonawanda, US
Amba Ayambem · Kimberton, US

Key dates

Filing date	Sep 27, 2001
Grant date	Feb 25, 2003
Priority date	—
Expiry date	Sep 27, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31938
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Gypsum wallboard compositions are disclosed which contain functionalized styrene butadiene latex polymers. Methods for the use of the compositions in the manufacture of wallboard panels and sheets is presented.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.