Teijin Limited

Tamaki Kanai

Hirofumi Yoshikawa

Kenji Suzuki

Takashi Yamagishi

Yoshikatsu Ohta

Sadayoshi Miura

Teruo Takahashi

Teruo Matsunaga

Tetsuya Ohta

Hiroatsu Moriyama

Kazunobu Natori

Takashi Yamagichi

A readily adhesive polyester film comprising a polyester film having provided on at least one surface thereof a readily adhesive thin layer (a primer layer) containing an aqueous phenoxy resin; and a process for preparation of a readily adhesive polyester film which comprises applying an aqueous coating containing an aqueous phenoxy resin on at least one surface of a polyester film before completion of crystalline orientation, and then subjecting the resulting film to drying, stretching and heating treatments to complete crystalline orientation of the film.

Readily adhesive polyester film and process for preparation thereof

A heat transfer recording sheet comprising

Heat transfer recording sheet

A polyester film having on at least one surface thereof a primer layer comprising a crosslinked product of a polyurethane having at least one functional group selected from a carboxyl group, a sulfo group, a hemisulfate group, and salts of these groups and a polyepoxy compound. The polyester film having a primer layer can be produced by coating an aqueous primer coating composition comprising a polyurethane having at least one of a carboxylic acid salt group, a sulfonic acid salt group and a hemisulfate salt group on at least one surface of a polyester film before its crystallization and orientation are completed, and thereafter completing the crystallization and orientation by subjecting the coated film to drying, stretching and heat-treatment, and is useful as a base film for magnetic recording media.

Process for surface treating a polyester film

A process for producing a slippery biaxially stretched polyester film, which comprises coating one or both surfaces, preferably one surface, of a running polyester film, before the completion of its crystalline orientation, with an aqueous solution or dispersion containing

Process for the production of slippery biaxially stretched polyester

Slippery biaxially stretched polyester films

A process for producing an easily adherable biaxially stretched polyester film, which comprises coating a primer composition consisting of (A) and aqueous dispersion of polyurethane and (B) a montan wax salt and optionally a nonionic or anionic surface-active agent on the surface of a polyester film which has not yet been stretched completely, drying the coating, completing the stretching of the coated film, and then heat-setting it thereby to form a primer coated layer on the film surface.

Process for producing easily adherable polyester film

A linear aromatic polyester comprising, in the polymer molecule, at least 50 mole % of a repeating unit being represented by the formula ##SPC1## In which

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Machida, Japan

Tamaki Kanai