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. 10, 1990
Filed:
Jun. 17, 1988
Dennis R De Wacker, Belle Mead, NJ (US);
Leon Rosenberg, Bridgewater, NJ (US);
National Starch and Chemical Investment Holding Corporation, Wilmington, DE (US);
Abstract
A one-step process for simultaneously compressing and tempering fiberboard panel, which includes the step of applying to the panel prior to compression thereof an aqueous treating composition which comprises a polyvinyl acetate emulsion and optionally up to 40% of a hydrocarbon emulsion, up to 3% of a fluid, water-soluble organosilicone polymer, or up to 5% by weight of a starch crosslinking agent. The polyvinyl acetate emulsion is prepared in the presence of 6-10% by weight of a starch stabilizer selected from the group consisting of derivatized starches and/or converted starches and 0.5-1.5% of a surfactant. The preferred emulsions are polymerized in the presence of alkenyl succinate starches, most preferably octenyl succinate waxy maize starches.