Toyo Seikan Kaisha, Ltd.

Toyo Seikan Daisha, Ltd.

Sachiko Machii

Katsuhiro Imazu

Tetsuo Miyazawa

Kenichirou Nakamaki

Masanori Aizawa

Yoshiki Takesue

Kazuhiro Sato

Yoshitsugu Maruhashi

Kouji Suzuki

Toshio Sue

Norimasa Maida

Masashi Ichishima

Kazuhiro Satoh

Kenichiro Nakamaki

A laminate obtained by laminating a resin composed chiefly of a polyester on a base material, said resin layer having a melt viscosity ratio (R) defined by the following formula (1),

Laminate and container made of the same

A laminate for can-making is disclosed, comprising a metal sheet and a thermoplastic resin layer provided on the surface of the metal sheet. The thermoplastic resin layer comprises a laminate film layer comprising a polyester-base resin intermediate layer (A) containing 10 wt % or more of coloring agent particles, a polyester-base resin outer surface layer (B) and a polyester-base resin backing layer (C). The outer surface layer (B) and the backing layer (C) each contains the coloring agent particles in an amount of 20 wt % or less and at the same time, in an amount less than that contained in the intermediate layer (A). Also disclosed is a process for making a can using the laminate.

Laminate sheet and process for making a seamless can using the same

A thin-walled, deep-draw-ironed seamless can comprising a laminate of a metal sheet and a biaxially stretched film of polyester or copolyester mainly comprising an ethylene terephthalate unit. The thickness of the side wall portion of the can is reduced to from 30 to 85% of the original thickness of the laminate. The film layer on the side wall portion of the can has a parallel component orientation (D1) defined by formula (1) of 65% or more and a half width (Wh) of the peak at an angle of diffraction 2.theta. of from 14.degree. to 20.degree. falling within 1.8.degree..

Seamless can

A laminated metal sheet obtained by laminating a polyester film on a metal sheet, wherein the polyester film has a double refraction represented by the following relation,

Polyester-metal laminated sheet and seamless cans using the same

A polyester laminated draw-formed can which suppresses frothing phenomenon when a carbonated beverage is contained therein and exhibits excellent corrosion resistance, and a coated metal plate used for the production of the cans. The coated metal plate for cans comprises a laminated material of a metal plate, a polyester film layer consisting chiefly of ethylene terephthalate units and, as required, an adhesive primer layer interposed between the metal plate and the polyester film, wherein the polyester film layer that is on the inner surface side of the can has a surface that is molecularly oriented in at least the biaxial directions, and larger protrusions on the surface over a visual field of 100 .mu.m.times.100 .mu.m as observed using an interatomic force microscope (AFM) have an average height (H) of three points of 0.20 .mu.m or smaller.

Coated metal plate for cans and seamless cans formed therefrom

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Yokohama, Japan

Sachiko Machii