Unitika Ltd.

Mitsui Petrochemical Industries, Ltd.

Sunstar Kabushiki Kaisha

Hiroshi Nishimura

Shigemitsu Murase

Fumio Matsuoka

Koichi Nagaoka

Norio Matsuzawa

Shigeru Wada

Hidesaburo Oi

Juntaro Sasaki

Masao Nakano

Masanobu Hioki

Atsushi Maehara

Kayoko Adachi

Sunao Kaneda

Atsushi Arahira

Shousuke Ito

Takanari Nakamura

Makoto Tada

A concealable film including 10 to 94% by mass of a crystalline polyamide resin, 1 to 40% by mass of an amorphous polyamide resin and 5 to 50% by mass of titanium oxide, with the proviso that the total content of these is 100% by mass.

Concealable film, laminate, and packaging material

A polylactic acid formed article and a production process therefor. A resin composition for the formed article comprises polylactic acid having an optical purity of not lower than 90% and a residual lactide amount of 0.1 to 0.6% by mass, and 1 to 25% by mass of a crystal nucleus agent. The formed article is characterized in that a difference (|&#x394;Hm|&#x2212;|&#x394;Hc|) between the absolute value of a crystal fusion heat amount &#x394;Hm as measured at a heat-up rate of 20&#xb0; C./min by means of a differential scanning calorimeter and the absolute value of a heat-up crystallization heat amount &#x394;Hc generated by heat-up crystallization is not lower than 25 J/g, and has a crystallinity of not lower than 35% as determined by X-ray measurement and a crystallization speed of not lower than 0.05 minat 130&#xb0; C.

Polylactic acid molding and process for producing the same

The present invention relates to a nonwoven fabric including a fine denier filament having a plexifilamentary structure in which the disadvantages of polyolefins and of polyesters are offset each other while advantages of them are well utilized with a fine fibrillated structure comprising said filament. The filament comprises a mixture which is at least composed of polyolefin and polyester which are immiscible with each other and has a plexifilamentary structure. The filament is so highly fibrillated that the fibril has not been available yet and, in addition, the filament is with high strength and modulus and exhibits a good dyeing ability. The above-mentioned nonwoven fabric contains the filaments having a plexifilamentary structure in which a mixture of polyolefin and polyester which are immiscible with each other in a mixing ratio within a range of from 5/95 to 95/5 by weight and said filaments are entirely or partially bonded. Said nonwoven fabric is with excellent strength, moisture permeability and waterproof pressure and exhibits a dyeing ability.

Filament having plexifilamentary structure, nonwoven fabric comprising

A dental or surgical adhesive filler containing (a) a polymerizable acrylic acid or methacrylic acid derivative, (b) a vinyl polymer powder, (c) an organic boron compound as a curing agent, and optionally, a polar organic compound and an inert diluent. The advantage of the above dental or surgical adhesive filler is that it is easy to handle due to stability in curing time and freedom of ignition.

Dental or surgical adhesive filler

A hair treating composition having excellent resistance to washing which comprises a dimethyl silicone rubber and a quaternary ammonium salt ingredient consisting of stearyltrimethylammonium chloride and behenyltrimethylammonium chloride.

Hair treating composition

An improved process for the polymerization of olefins in the presence of catalyst consisting essentially of:

Process for polymerization of olefins and catalyst composition therefor

An improved process for the polymerization of olefins in the presence of catalyst consisting essentially of: A. a titanium trichloride composition obtained by micro-pulverizing a titanium trichloride component prepared by reduction of titanium tetrachloride with a member selected from the group consisting of hydrogen, silicon, metallic titanium and metallic aluminum, in the presence of a complex of aluminum chloride or aluminum bromide with an electron-donor selected from the group consisting of oxygen-containing organic compounds, nitrogen-containing organic compounds and phosphorus-containing organic compounds, the amount of the complex being 0.005 to 0.5 mole per mole of the titanium trichloride component, and extracting the micro-pulverized titanium trichloride component with a solvent selected from the group consisting of saturated aliphatic hydrocarbons, aromatic hydrocarbons and halogenated aromatic hydrocarbons; and B. an organoaluminum compound, and the catalyst therefor.

Growing community of inventors

Kyoto, Japan

Hiroshi Nishimura