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:
Sep. 06, 2011
Filed:
Sep. 09, 2005
Ichiro Ohkawachi, Ibaraki, JP;
Akira Iwai, Ibaraki, JP;
Minoru Kato, Tokyo, JP;
Yupo Corporation, Tokyo, JP;
Abstract
This invention provides printing paper which comprises an aliphatic polyester resin utilizing a plant resource-derived biomass material, is excellent, for example, in traveling stability on a printing machine, material strength, reproduction of dots, print sharpness, and waterfastness and is suitable for use in applications where sheet offset printing is carried out, for example, commercial printing applications such as outdoor posters and maps, catalogs, pamphlets, and menues, and a label using the same. The printing paper is a film formed of an aliphatic polyester resin composition comprising 40 to 90% by weight of an aliphatic polyester resin (a) comprising a binary or higher material of aliphatic diol units represented by formula (I) and aliphatic dicarboxylic acid units represented by formula (II) and 60 to 10% by weight of an inorganic fine powder (b). The film has a Gurley stiffness of 50 to 3,000 mg, a surface area S, per projected area 4,292 μm, of the film surface of 5,000 to 50,000 μm, and a convex part volume V, per projected area 4,292 μm, of the film surface of 2,000 to 20,000 μm: —O—(CH)—O— . . . (I) wherein m is an integer of 2 to 10; and —CO—(CH)—CO— . . . (II) wherein n is an integer of 1 to 12.