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:
Jan. 30, 2018
Filed:
Apr. 21, 2011
William Finch, Ambler, PA (US);
Haksu Lee, Ambler, PA (US);
Charles J. Rand, Philadelphia, PA (US);
Robert L. Sammler, Midland, MI (US);
Frances J. Timmers, Midland, MI (US);
Barry Weinstein, Dresher, PA (US);
William Finch, Ambler, PA (US);
Haksu Lee, Ambler, PA (US);
Charles J. Rand, Philadelphia, PA (US);
Robert L. Sammler, Midland, MI (US);
Frances J. Timmers, Midland, MI (US);
Barry Weinstein, Dresher, PA (US);
Dow Global Technologies LLC, Midland, MI (US);
Rohm and Haas Company, Collegeville, PA (US);
Abstract
The present invention provides thermosetting aqueous binder compositions of one or more diprimary diamine, e.g. lysine, or poly(primary amine), e.g. polyethylenimine, and one or more reducing sugar in which the number of equivalents of primary amine relative to the number of equivalents of carbonyl groups in the reducing sugar ranges from 0.4:1 to 2:1, the binders being suitable for use on fiber, nonwoven, woven web and finely divided substrates. The binders are at least substantially formaldehyde free, need no polycarboxylic or polycarboxylate component, and yet provide excellent hot wet tensile strength when cured for as little time as a minute or less in use.