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:
Nov. 03, 1998
Filed:
Dec. 20, 1991
Akber Ali Khanshab, Freehold, NJ (US);
William R Zacher, Middletown, NJ (US);
Aqualon Company, Wilmington, DE (US);
Abstract
An alcohol-free and encapsulated nitrocellulose which is primarily suitable for printing inks, varnishes and coatings consists of 65-75% nitrocellulose, 3-8% water, 10-15% non-solvating plasticizer and 10-15% of an active solvent suitable for both nitrocellulose and the plasticizer. A product is produced by drying water-wet nitrocellulose and spraying on a solution of plasticizer in solvent. Upon blending to a uniform consistency, the nitrocellulose becomes partially dissolved and encapsulated within the plasticizer/solvent mixture. The advantages of the invention are improved safety indicated by a lower rate of burning and reduced environmental pollution wherein the product is alcohol-free such that no additional alcohol recovery system is required.