Diafoil Company, Ltd.

Diafoil Hoechst Company, Limited

Yuzo Otani

Naohiro Takeda

Nariaki Okajima

Shin-ichi Kinoshita

Masahiro Kita

Yoshihiko Ito

Takashi Harada

Masashi Inagaki

Toshifumi Takisawa

Masato Fujita

A polyester resin film which is biaxially oriented and again oriented in a machine direction and a coating layer formed on at least one surface of the film, in which the coating layer contains at least 50% by weight of a water-soluble or water-dispersible polyester resin having a glass transition temperature of at least 20.degree. C., which film has a good adhesion property.

Polyester film

There is disclosed an electrically conductive polyester film comprising a polyester base film and a coating layer which is formed by applying a coating liquid to said base film, thereafter stretching the coated film and heat-setting the film, wherein said coating liquid is an aqueous composition and contains carbon black in an amount of 30-60% by weight of the solid content and produces a layer when dried at 80.degree. C. for 10 minutes, the rupture elongation of said layer being at least 300% and is heat-settable at 10.degree.-200.degree. C., and said coating layer having a surface resistivity of 10.sup.4 -10.sup.10 .OMEGA./.quadrature. and a surface roughness of not more than 0.05 .mu.m. This polyester film exhibits good electric resistivity and light-shielding proper.

Electrically conductive film

Disclosed herein are a stretched antistatic laminate film comprising at least one coating layer containing a polymer having pyrrolidium rings in the main molecular chain, and a polyester film layer, a magnetic recording medium using the same, and a recording material for heat sensitive transfer printing using the same.

Magnetic recording medium comprising an oriented polyester substrate, an

Disclosed herein is a magnetic recording medium comprising a polyester film layer, a coating type magnetic layer provided on one side of said polyester film layer, and a back-coat layer provided on the other side of said polyester film layer.

Magnetic recording medium comprising a polyester film substrate, a

Stretched polyester film having an antistatic coating comprising a

There is disclosed a sublimation type thermal ink transfer recording material comprising a biaxially drawn film substrate consisting of a polyester base film and an applied primer layer of a reaction product of a polymerizable compound having carbon-carbon unsaturated bonds and a polyester, said substrate being drawn after a solution containing said reaction product is applied on the polyester film; a layer of sublimation type ink formed on said applied layer; and a slippery layer formed on the side opposite to said ink layer. This material has an ink layer which is not easily peeled off and has excellent image-forming ability.

Sublimation type thermal ink transfer printing material

Disclosed herein is a magnetic recording medium comprising a substrate polyester film having on both sides or one side thereof a coating layer comprising a polyurethane having anionic group or a mixture of a polyurethane having anionic group and a polyester having sulfonic group, and an electron radiation cured magnetic layer formed on said coating layer.

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Tokyo, Japan

Yuzo Otani