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:
Jan. 17, 1995
Filed:
Mar. 30, 1992
Kouji Fukuda, Ohtsu, JP;
Shigeharu Sugihara, Ohtsu, JP;
Takeshi Kamoto, Ohtsu, JP;
Keiji Mori, Ohtsu, JP;
Seiki Nishihara, Ohtsu, JP;
Katsuya Emoto, Ohtsu, JP;
Toshikazu Nishiwaki, Ohtsu, JP;
Hiroshi Takeuchi, Ohtsu, JP;
Toyo Boseki Kabushiki Kaisha, Osaka, JP;
Abstract
A polyester resin (A) having branched chain, a reduction viscosity (.eta. sp/c) of not less than 0.7, and a Z average molecular weight (Mz) relative to standard polystyrene of not less than 250.times.10.sup.3 and not more than 800.times.10.sup.3, a polyester resin composition comprised of resin (A) and a polyester resin (B) without branched chain and having a reduction viscosity (.eta. sp/c) of not less than 0.7., and a polyester resin composition comprised of resin (A) and a polyester resin (C) having branched chain and a melting point lower than that of the polyester resin (A). The sealant made from the polyester resin (A), or the resin compositions of the present invention is superior in heat-sealing properties, flavor retention, and film moldability (extrusion processing characteristics), and is suitable for a sealant for paper and plastic food containers.