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:
Sep. 12, 2000
Filed:
Mar. 30, 1999
Joel Erwin Goldstein, Allentown, PA (US);
Ronald Joseph Pangrazi, Fleetwood, PA (US);
Air Products and Chemicals, Inc., Allentown, PA (US);
Abstract
This invention relates to polymers particularly suited for use in preparing high quality nonwoven products. The binders for the banquet incorporate at least two different but reactive functionalities and which are capable of reacting with two other multifunctional reactants each of which will react with at least one of the functionalities present in the polymer. The two functionalities copolymerized into these backbones include the acetoacetoxy moiety and a carboxylic acid group. The crosslinking is effected by adding a compound capable of reacting and crosslinking the acetoacetoxy moiety and another compound capable of reacting and crosslinking the carboxylic acid functionality. The former can be a dialdehyde such as glyoxal or glutaraldehyde. The second functionality is a polyaziridine functional compound such as N-aminoethyl-N-aziridilethylamine, N,N-bis-2-aminopropyl-N-aziridilethylamine, N-3,6,9-triazanonylaziridine, the bis and tris aziridines of di and tri acrylates of alkoxylated polyols, the trisaziridine of the triacrylate of the adduct of glycerine and propylene oxide.