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:
May. 14, 2013
Filed:
Jan. 29, 2008
Kenichi Harano, Kobe, JP;
Tatsuya Amano, Noda, JP;
Hisao Matsumiya, Noda, JP;
Asics Corporation, Kobe-shi, JP;
Abstract
The method of manufacturing shoes of the present invention comprises a pre-step of heating a following reactive hot-melt adhesive to melt it and providing the melted adhesive on a joining surface of at least one adherend, an ultraviolet treating step of irradiating the adhesive with ultraviolet light having irradiation energy more than 100 mJ/cmand less than 1200 mJ/cmto polymerize a polyurethane prepolymer, and a joining step of overlaying a joining surface of another adherend on the adhesive to bond both adherends together. The reactive hot-melt adhesive contains a polyurethane prepolymer having an (meth)acryloyl group and an isocyanate group at the end of a molecule, and a photopolymerization initiator. The polyurethane prepolymer includes a non-crystalline polyol and a crystalline polyol, wherein the non-crystalline polyol is contained from 20% by mass to 90% by mass with respect to the whole polyols. The viscosity of the reactive hot-melt adhesive at 80° C. is 300 Pa·s or less. The method of manufacturing shoes of the present invention can simplify a work process and shorten working hours, and it is possible to manufacture shoes having excellent durability.