Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2006-07-21
2010-06-15
Nerangis, Vickey (Department: 1796)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S3550AC, C428S343000, C428S500000, C524S423000, C524S429000
Reexamination Certificate
active
07736764
ABSTRACT:
A coating for preparing a floor underlayment to receive an adhesive includes a water-soluble, latex polymer, a defoamer and a dual-function surface enhancing agent. The surface enhancing agent includes a set accelerator that also functions to cross link the adhesive, hardening the surface of the underlayment using at least two mechanisms. One embodiment of the invention is a dry mixture that forms a coating when added to water. The dry mixture includes from about 10% to about 50% of the redispersible polymer by weight based on the mixture, from about 50% to about 90% of the surface enhancing agent and from about 0.15% to about 0.25% of the defoamer by weight based on the mixture. Other embodiments describe a liquid coating formed by adding from about 1 to about 8 parts water to 1 part of the dry mixture by volume based on the mixture.
REFERENCES:
patent: 3947398 (1976-03-01), Williams
patent: 4075374 (1978-02-01), Jorgenson et al.
patent: 5032225 (1991-07-01), Saji et al.
patent: 5491209 (1996-02-01), Helmer et al.
patent: 5702828 (1997-12-01), Adler et al.
patent: 6387504 (2002-05-01), Mushovic
patent: 6406779 (2002-06-01), Carbo et al.
patent: 6436185 (2002-08-01), Ayambem et al.
patent: 6476099 (2002-11-01), Cimaglio et al.
patent: 6593417 (2003-07-01), Anderson et al.
patent: 6599599 (2003-07-01), Buckwater et al.
patent: 6610777 (2003-08-01), Anderson et al.
patent: 6623791 (2003-09-01), Sadvary et al.
patent: 6635341 (2003-10-01), Barancyk et al.
patent: 6663979 (2003-12-01), Deodhar et al.
patent: 6689460 (2004-02-01), Wen et al.
patent: 6727318 (2004-04-01), Mathauer et al.
Ellicson John W.
Liu Qingxia
McDonald David
Greer Burns & Crain Ltd.
Janci, Esq. David F.
Nerangis Vickey
Sahu, Esq. Pradip
United States Gypsum Company
LandOfFree
Surface enhancing coating for gypsum-containing floor... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Surface enhancing coating for gypsum-containing floor..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surface enhancing coating for gypsum-containing floor... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4189095