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. 11, 2007
Filed:
Jun. 18, 2004
Saichi Ono, Tokyo, JP;
Shinichi Hirakawa, Osaka, JP;
Yoichiro Yotsuya, Osaka, JP;
Hirofumi Okada, Osaka, JP;
Saichi Ono, Tokyo, JP;
Shinichi Hirakawa, Osaka, JP;
Yoichiro Yotsuya, Osaka, JP;
Hirofumi Okada, Osaka, JP;
Kureha Corporation, Tokyo, JP;
Abstract
A packaging material is formed by a substrate, and an inner sealing layer comprising a polyolefin layer and an aqueous dispersion-type polyester resin layer successively disposed on the substrate. The aqueous dispersion-type amorphous polyester resin layer contains an anionic surfactant or an amphoteric surfactant and is substantially free from an organic solvent having a boiling point of at most 100° C. The thus-formed packaging material is excellent in aroma-retentivity, aroma non-adsorptivity, particulate non-adhesion, low residual solvent and sealability. The packaging material is also free from environmental problem and is therefore suitable as a packaging material for particulate medical supplies and health foodstuff.