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:
Jul. 09, 1991
Filed:
Jan. 12, 1990
Paul Mudge, Belle Mead, NJ (US);
Sirisoma Wanigatunga, Bridgewater, NJ (US);
National Starch and Chemical Investment Holding Corporation, Wilmington, DE (US);
Abstract
Emulsion binders which do not generate formaldehyde during cure are prepared for use in nonwoven products by using a emulsion copolymer comprising by weight about 100 parts C.sub.1 -C.sub.8 alkyl acrylate or C.sub.1 -C.sub.8 alkyl acrylates in combination with styrene, acrylonitrile, vinyl acetate and combinations thereof, about 1 to 20 parts hydroxyalkyl acrylate or methacrylate, about 2 to 20 parts meta or para isopropenyl-.alpha.,.alpha.-dimenthyl benyl isocyanate and optionally 0.1 to 5 parts of a multifunctional monomer. The binders are useful in the formation of heat resistant flexible products for use in roofing, flooring and filtering materials, as well as for facings and other applications in general purpose nonwoven products.