Asahi Kasei Chemicals Corporation

Michihiro Yatsuzuka

Masayuki Sukigara

Hisaaki Kobayashi

Mitsuyoshi Itada

A wrap film having very stable physical properties wherein a sock liquid maintains the lubricating effect as an opening agent while a sock is stabilized and parison width changes and meandering are reduced to eliminate parison wrinkles is provided. Specifically, the wrap film is a wrap film made of a polyvinylidene chloride-based resin prepared by melt-extruding a polyvinylidene chloride-based resin from a die in tubular form, cooling the outer side of the extrudate by using a coolant while an aqueous solution of a liquid that is compatible with water and forms one-component is retained in the hollow portion of the extrudate, and inflating the solidified extrudate, wherein the liquid that is compatible with water and forms one-component has a concentration of 80 to 95% by mass in the aqueous solution, and the liquid is applied to the wrap film in amounts of 50 to 4,000 ppm.

Wrap film made of polyvinylidene chloride-based resin and process for producing the same

A single-layer matte film or sheet which comprises a filler and a biodegradable resin (A) comprising a blend of a biodegradable polyester (1) having a glass transition temperature Tg of 10&#xb0; C. or lower and a biodegradable polyester (2) having a glass transition temperature Tg of 30&#xb0; C. or higher, and in which at least one side thereof has a surface gloss (45-degree gloss) as measured in accordance with ASTM-D2457-70 of 60% or lower.

Growing community of inventors

Tokyo, Japan

Michihiro Yatsuzuka