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:
Feb. 20, 1979
Filed:
Dec. 29, 1975
Frederick D Godfrey, Jr, Maplewood, NJ (US);
Gulf & Western Corporation, New York, NY (US);
Abstract
This invention provides coated tobacco product having a hydrophobic coating on at least one surface thereof, the coating comprising a cellulose propionate having an acetyl content of less than about 6% by weight, a hydroxyl content of at least 1.5% by weight, and a content of acyl groups of more than about 3 carbon atoms of less than about 10% by weight. The coating preferably comprises a mixture of the aforesaid cellulose propionate with a glyceride having the general formula: ##STR1## wherein preferably one of the R groups is a group selected from the group consisting of acetyl and propionyl, at least another R residue group represents an acyl containing at least about 12 carbon atoms, any remaining R group is hydrogen. The coating composition is applied, e.g. to a reconstituted tobacco product, as a clear solution in a volatile solvent. The volatile solvents which are suitable include alcohol-water mixtures, esters, and anhydrous alcohol-ester mixtures. If desired, a cross-linking agent may be present to increase the water-resistance of the resulting hydrophobic film.