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. 02, 2003
Filed:
Oct. 10, 2000
Mitsui Chemicals Inc., Tokyo, JP;
Abstract
The adhesive ethylene copolymer composition of the invention comprises a specific long-chain branched ethylene/&agr;-olefin copolymer (or this copolymer and its graft-modified product) and a tackifier (or a specific ethylene/vinyl acetate copolymer), and has specific density, MFR, crystallinity and graft quantity. The composition containing the tackifier can form a layer having good adhesive force to polystyrene resins, ABS resin, polyacrylonitrile resins and ethylene/vinyl acetate copolymer saponified resins even in an atmosphere of high temperatures. The composition containing the ethylene/vinyl acetate copolymer can form a layer having good adhesive force to polyester resins, polycarbonate resins, polyvinylidene chloride resins and ethylene/vinyl acetate saponified resins even in an atmosphere of high temperatures. The other adhesive ethylene copolymer composition of the invention comprises a blend of a graft-modified linear ethylene/&agr;-olefin copolymer and an olefin elastomer. This composition has excellent heat stability, moldability and transparency, and can form a film layer having good adhesive force to metals and materials of high polarity.