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:
Oct. 23, 2001
Filed:
Aug. 25, 1999
Shinya Nishikawa, Osaka, JP;
Hiroshi Hayami, Osaka, JP;
Kiyoaki Moriuchi, Osaka, JP;
Akira Nishimura, Osaka, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
A hot-melt adhesive comprises a resin composition comprising (a) from 0.1 to 50 parts by weight of a polyolefin resin obtained by copolymerizing 80% by weight or more of a non-polar &agr;-olefin with 20% by weight or less in total of a monomer containing 5% by weight or more of a carboxyl group and a polar &agr;-olefin, or with 20% by weight or less in total of a monomer containing 0.5% by weight or more of an acid anhydride group and a polar &agr;-olefin, (b) from 0 to 80 parts by weight of a copolymer of ethylene and a non-polar&agr;-olefin, or a polyolefin resin containing 20% by weight or less of a polar &agr;-olefin, and (c) from 10 to 90 parts by weight of a polyamide, provided that the total amount of the components (a), (b) and (c) is 100 parts by weight, the resin composition having a melt index of 5 g/10 min or more and less than 500 g/10 min. The hot-melt adhesive resin composition of the invention has excellent adhesiveness to both non-polar and polar adherends. A heat recoverable article using the hot-melt adhesive is valuable for processing a joint and an end of electric cables.