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:
Aug. 19, 1986
Filed:
Jan. 14, 1985
Kohjin Co., Ltd., Tokyo, JP;
Abstract
A water-resisting and oil-resisting laminated sheet, the oil resistance of which is not reduced by alcohol, prepared by laminating an ethylene-vinyl acetate copolymer layer and a paper, which paper is coated or impregnated with a liquid or a coating composition and then dried by heating. The copolymer layer has a vinyl acetate component of 10 to 30 mole %, a melt flow index of 2 to 20, and a thickness of 10 to 50.mu.. The liquid is in an amount of 0.5 to 5% by weight to the paper as solid component and is prepared by mixing an aqueous solution or an aqueous dispersion of an oil-resisting polymer such as polyvinyl alcohol, etc., with an aqueous dispersion of a perfluoroalkyl acrylate copolymer at 3:7 to 7:3 by solid component ratio, adding thereto 0.1 to 3% by weight of a penetrating agent such as polyalkylene glycol or derivatives thereof, and diluting with water. The coating composition is composed of 100 parts by weight of a reactive silicone-acrylate resin emulsion and 20 to 100 parts by weight of a perfluoroalkyl acrylate copolymer which is diluted with water in an amount of 0.5 to 5% by weight to the paper as solid component. Also, a water-resisting and oil-resisting food-keeping means capable of controlling the diffusing amount of alcohol vapor comprising a bag, at least a part of which is composed of the aforesaid laminated sheet prepared by using a previously printed paper, and an alcohol component enclosed in the bag.