Unitika Ltd.

Unitka Ltd.

Kiwamu Yuki

Atsuko Noda

Takayoshi Okuzu

Makoto Nakai

Hideki Kuwata

Tsunetoshi Matsuda

Yasumasa Fukushima

Kazuyoshi Yamazawa

Nobuhiro Tanaka

Chiemi Nishitani

Hiroshi Sakakura

The present invention provides a polyester film wherein an adhesive layer including a thermoplastic elastomer including a monovinyl substituted aromatic hydrocarbon and a conjugated diene, a compatibilizer having a glass transition temperature of 35 to 150&#xb0; C., and a polyester resin having a glass transition temperature of 35 to 150&#xb0; C. and a carboxyl group content of 10 to 100 mg KOH/g is laminated on a polyester substrate.

Polyester film and photosensitive resin structure

Disclosed is a biaxially stretched polyamide resin film which is a biaxially stretched film having a layer of a polyamide resin with caproamide as a repeating unit thereof and has an amount of the caprolactam monomer extracted from the biaxially stretched polyamide resin film of 0.1% by mass or less, and also disclosed is a packaging material including the biaxially stretched polyamide resin film.

Biaxially stretched polyamide resin film and production method thereof

Disclosed is a highly adhesive polyester film having a highly adhesive primer layer disposed on at least one side of a substrate polyester film. The substrate polyester film is a stretched film having linear tearability and formed of a mixed polyester resin containing polyethylene terephthalate and a modified polybutylene terephthalate, and the highly adhesive primer layer contains a polyester resin (A) having an acid number of 20 to 60 mg KOH/g and a hydroxyl number of 30 to 150 mg KOH/g, and having an oligomer content of 2.0% by mass or less, and substantially contains no crosslinking agent component.

Highly adhesive polyester film and packaging material using the same

At an optional stage in the production step of a biaxially stretched film using a polyamide resin including, as a first component, nylon 6, and as a second component, a polyamide including xylylenediamine and an aliphatic dicarboxylic acid having 4 to 12 carbon atoms, the film is brought into contact with water set at 40&#xb0; C. or higher and lower than 70&#xb0; C. for 1 to 10 minutes and further with water set at 70&#xb0; C. or higher for 1 to 10 minutes. In the film thus obtained, the content of low molecular weight compounds is 0% by mass to 0.2% by mass.

Biaxially stretched polyamide resin film, and process for production thereof

A poly(ethylene terephthalate) polyester composition which is decreased in the amount of a cyclic trimer of ethylene terephthalate formed in melting, and a method for producing the same.

Growing community of inventors

Kyoto, Japan

Kiwamu Yuki