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:
Dec. 26, 2006
Filed:
May. 31, 2004
Junji Tan, Sodegaura, JP;
Yasuhiro Mutou, Sodegaura, JP;
Seiji Ota, Sodegaura, JP;
Toyoaki Sasaki, Sodegaura, JP;
Junji Tan, Sodegaura, JP;
Yasuhiro Mutou, Sodegaura, JP;
Seiji Ota, Sodegaura, JP;
Toyoaki Sasaki, Sodegaura, JP;
Mitsui Chemicals, Inc., Tokyo, JP;
Abstract
The present invention provides a polyester resin which comprises (a-1) 45 to 99% by mole of an oxycarboxylic acid unit having 5 carbon atoms or less, (a-2) 0.5 to 27.5% by mole of an aromatic dicarboxylic acid unit, and (a-3) 0.5 to 27.5% by mole of an aliphatic diol unit having 4 carbon atoms or less, and containing (a-1) to (a-3) in a total amount of 95% by mole or greater, wherein the relationship between the content of the oxycarboxylic acid, expressed as M % by mole, and the density ρ (kg/m) of the polyester resin, satisfies the formula ρ≧1349+M×0.85.