B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 15/08 (2006.01) B21D 22/20 (2006.01) B21D 22/28 (2006.01) C08G 18/08 (2006.01) C08G 18/12 (2006.01) C08G 18/66 (2006.01) C09D 175/12 (2006.01) C08L 23/06 (2006.01)
Patent
CA 2428000
A metal product having surface lubricity and excellent moldability, characterized in that the product is obtained by coating one or each side of a metal with a film 0.5-10 µm thick formed from an alkali-soluble lubricating material comprising as the main components an alkali-soluble water-based polyurethane composition in which the polyurethane contains carboxyl or sulfo groups in the molecule and 1 to 30 wt.% lubricity-imparting agent based on the composition, and that the film after formation has a modulus as measured at 25~C of 0.5 to 20 GPa.
Produit métallique présentant d'excellentes caractéristiques de lubrification et de moulage de surface et fabriqué par revêtement d'un ou des deux côtés d'un métal par une pellicule d'épaisseur de 0,5-10µm constituée par une matière lubrifiante soluble en milieu alcalin dont les constituants principaux consistent en une composition aqueuse de polyuréthanne soluble en milieu alcalin dans laquelle la molécule de polyuréthanne contient des groupes carboxyle ou sulfo, et en 1-30 % en poids d'un agent lubrifiant sur la base de la composition, cette pellicule après formation possédant un module d'élasticité mesuré à 25 ·C de 0,5 à 20 Gpa.
Kanai Hiroshi
Kouda Chikako
Miyasaka Akihiro
Mori Yoichiro
Nishimura Mitsuhiro
Goudreau Gage Dubuc
Mitsui Takeda Chemicals Inc.
Nippon Steel Corporation
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