The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 27, 2021
Filed:
May. 09, 2017
Applicant:
Johns Manville, Denver, CO (US);
Inventors:
Kiarash Alavi, Littleton, CO (US);
Uranchimeg Lester, Littleton, CO (US);
Jawed Asrar, Englewood, CO (US);
Assignee:
Johns Manville, Denver, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 25/32 (2018.01); C09D 101/02 (2006.01); C08K 7/14 (2006.01); C03C 25/321 (2018.01); C08K 5/07 (2006.01); D04H 1/587 (2012.01); C08G 12/22 (2006.01); B05D 3/06 (2006.01); C08L 61/20 (2006.01); C08L 61/22 (2006.01);
U.S. Cl.
CPC ...
C03C 25/32 (2013.01); B05D 3/067 (2013.01); C03C 25/321 (2013.01); C08G 12/22 (2013.01); C08K 5/07 (2013.01); C08K 7/14 (2013.01); C08L 61/20 (2013.01); C08L 61/22 (2013.01); C09D 101/02 (2013.01); D04H 1/587 (2013.01);
Abstract
Formaldehyde-free binder compositions are described that include an aldehyde or ketone, a reaction product between a polyamine and an organic anhydride, and an acidic compound. The acidic compound may be an organic acid, an acidic catalyst, or both. The acidic compound is supplied in quantities that lower the pH of the binder composition to about 5 or less. The binder compositions may be used in methods of binding fiberglass and the resulting fiberglass products have an improved tensile strength due to the addition of the acidic compound.