Nissan Motor Company Limited

Eizo Yoshida

Toshihiko Uchiyama

Toshiki Okuyama

A process for manufacturing polyurethane-coated products is disclosed. These polyurethane-coated products are manufactured by press-forming a metal material coated with a lubricant inclusive of a compound having an oxygen-hydrogen bond into a core member of a desired shape and covering necessary portions of the core member a with polyurethane foam or coating formed by reacting the compound with an isocyanate of the polyurethane forming material without degreasing steps, i.e. pretreatments for washing off the lubricant.

Process for the manufacture of polyurethane-coated products

In producing an article having a structurally primary part obtained by press-forming of a metal sheet to which a lubricant is applied beforehand and a secondary part stuck to the primary part with an adhesive, troublesome procedures for removal of the lubricant from the press-formed metal part precedent to adhesion-bonding of the secondary part can entirely be omitted without sacrificing the strength of adhesion between the primary and secondary parts by using an adhesive that has high chemical affinity with the lubricant remaining on the surface of the press-formed metal part. Preferably use is made of a solid lubricant containing organic polymeric substance as its principal component. In many cases the secondary part is made of a nonmetallic material, either an organic material or an inorganic material.

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Chigasaki, Japan

Eizo Yoshida