Teijin Limited

Takeyuki Kawaguchi

Hiroyoshi Minematsu

Yuzuru Hayashi

Yutaka Taketani

Shigeyoshi Hara

Takahiro Daido

Hiroaki Kuwahara

Noriaki Sasaki

Satoru Ohmori

Shunichi Matsumura

Takanori Miyoshi

Takashi Shiro

Tomoyoshi Ono

Hironori Matsuda

Katsushi Sasaki

Kaoru Iwata

Eiichi Kitazono

Susumu Maruo

Koh Mori

Masaaki Tsukioka

Fumio Ueda

Michio Iwai

Ko Mori

The adhesive agent composition of the present invention comprises from 50 to 90% by weight of an acrylic adhesive agent, 2.5 to 50% by weight of a polyhydric alcohol-containing liquid component, and 0.01 to 10% by weight of a salt of a mono- to tri-valence metal of an aliphatic acid that contains a hydrocarbon group of 8 to 18 carbon atoms. The adhesive agent composition shows good adhesion, cohesive force and permeability, and an adhesive drug composition having the above properties can be prepared by adding a drug (medicine, etc.) to the adhesive composition. An adhesive tape excellent in permeability or an adhesive tape preparation excellent in permeability and cutaneous absorption of the drug can be produced by coating a substrate with the adhesive agent composition or adhesive drug composition.

PRESSURE-SENSITIVE ADHESIVE COMPOSITION AND MOISTURE-PERMEABLE PRESSURE-SENSITIVE ADHESIVE TAPE, PRESSURE-SENSITIVE ADHESIVE DRUG COMPOSITION, AND PRESSURE-SENSITIVE ADHESIVE TAPE PREPARATION EACH CONTAINING THE COMPOSITION

The gel adhesive of the present invention contains an elastomer component (A), a self-adhesive polymer component (B) compatible with the elastomer component (A), and a liquid component (C) compatible with the elastomer component (A) and the self-adhesive polymer (B), the liquid component (C) being held in a mixture of the elastomer component (A) and the self-adhesive polymer (B) without exuding, to form as a whole, a gel, and is useful for forming a self-adhesive layer of an adhesive material or a pharmaceutical-containing self-adhesive layer of an adhering pharmaceutical preparation, which layer is capable of being firmly adhered to a surface to be adhered, and particularly a body skin surface, and of being easily removed therefrom without leaving a portion of the layer on the adhered surface.

Gel-form pressure-sensitive adhesive, and adhesive material and adhesive medicinal preparation both containing the same

A high-strength, heat-resistant and high-safety electrolytic-solution-supporting polymer film which can be applied to secondary batteries typified by lithium and lithium ion secondary batteries and which has an ionic conductivity of at least 5&times;10,S/cm at 25&deg; C., a puncture strength of at least 300 g and a mechanical heat resistance of at least 300&deg; C.

Electrolytic-solution-supporting polymer film and secondary battery

A novel polyalkyl ether/polyaryl ether sulfone or ketone copolymer and a specific polyether ester copolymer are useful for producing a medical material to be used to contact the blood; and methods for producing the medical material comprising said polyalkyl ether/polyaryl ether sulfone or ketone copolymer or a specific polyether ester copolymer.

Application of sulfone, ketone and ester containing polyalkyl ether

A blood dialyzer is produced by a process in which a plurality of artificial composite fibers having core portions consisting of a water-insoluble core liquid and surrounded by sheath portions consisting of a fiber-forming polymer are subjected to a removal of almost all of the core liquid; the resultant hollow fibers are bundled; the hollow fiber bundle is packed in a cylindrical case having open end; end portions of spaces left between the hollow fibers peripheries and between the hollow fibers and the inside surface of the cylindrical case are sealed with a bonding material, to fix the hollow fiber bundle to the cylindrical case at the end portions thereof; and the hollow fibers in the cylindrical case are cleaned with a cleaning liquid comprising at least one aliphatic monohydric alcohol having 3 to 8 carbon atoms.

Process for producing a blood dialyzer

A blood dialyzer having semipermeable polymeric dialyzing membranes is sterilized by impregnating the dialyzing membranes, for example, dialyzing hollow fibers, with an aqueous solution of a .gamma.-ray-absorbent and water-soluble dihydric aliphatic alcohol and irradiating .gamma.-rays to the dialyzing membranes, to prevent the deterioration of the dialyzing membranes and the generation of ultraviolet-ray-absorbent substance in the dialyzing membrane.

Method of sterilizing a blood dialyzer having semipermeable polymeric

A sulfur compound-coordinate bonded organic coloring matter, having a high resistance to ultraviolet rays and usable for a photorecording medium, comprises a reaction product of a transition metal complex of the formula: ##STR1## wherein n is zero, 1 or 2, A is a cation when n is 1 or but when n is zero, no cation A exists, X.sub.1, X.sub.2, X.sub.3 and X.sub.4 are --O--, --S--, --SH--, --NH-- or --NH.sub.2 --, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are an unsubstituted or substituted phenyl, cyano or alkyl, optionally the groups of the formulae ##STR2## are cyclized to form a substituted or unsubstituted phenylene or naphthylene or divalent heterocyclic ring containing O, S or N, and M is a transition metal atom having a coordinate number of 4 or more, with an organic sulfur compound having a mercapto or disulfide radical, to form at least one coordinate bond between the transition metal atom M and the mercapto or disulfide radical.

Sulfur compound-coordinate bonded organic coloring matter, compositions

An erasable optical recording medium having a recording layer formed by a transparent and crosslinked polymer having Tg within a range of 50.degree. C.-300.degree. C. and exhibiting a rubbery state at a temperature higher than the Tg, in which is incorporated a dye which absorbs a light and converts it to heat; and a method for recording, reading and/or erasing by using said medium.

Erasable optical recording medium and method for writing, reading and/or

A method for detecting a component of a biological system, which comprises contacting a biological component detecting device composed of a light reflecting substrate (I) substantially free from diffused reflection, a light interference layer (II) formed on the substrate (I), and a layer (III) of a substance for detecting said biological component provided at least in a region on the layer (II), with a solution presumed to contain the biological component to be detected, then forming a light-transmitting reflecting layer (IV) on its surface, and thereafter detecting the color of light interference or the brightness of the reflected light on the surface of the device.

Method and kit having layered device for detecting biological component

An amphoteric ion-permeable composite membrane composed of a microporous substrate, and supported on the substrate, a thin amphoteric ion-exchange film formed of an active amino group-containing polymer which has been interfacially crosslinked at least at the surface portion of the thin film, said membrane being produced by forming a thin layer comprising an active amino group-containing polymer containing 1.0 to 23 milliequivalents/g, as amino equivalent, of an active amino group selected from primary and secondary amino groups and 0 to 18 milliequivalents/g, as amino equivalent, of a tertiary amino group and/or an ammonium salt group per molecule with the total amino content thereof being in the range of 2.0 to 23 milliequivalents/g on the microporous substrate and then contacting the thin layer on the substrate interfacially with a polyfunctional aromatic compound containing at least two functional groups selected from carbonyl halide groups, sulfonyl halide groups, carboxylic acid anhydride groups, sulfonic acid anhydride groups and derivative groups of carboxylic acids and sulfonic acids having equivalent reactivity to the aforesaid halide and anhydride groups.

Amphoteric ion-permeable composite membrane

A semipermeable composite membrane comprising a thin semipermeable film of a polymeric material deposited on one side of a microporous substrate, the polymeric material being prepared by crosslinking a soluble polymer containing at least 30 mole % of a recurring unit of the formula ##STR1## wherein all symbols are as defined herein, and having at least 0.5 milliequivalent, per gram of said polymer, of an amino group containing 1 or 2 active hydrogen atoms, with a polyfunctional compound containing at least two functional groups capable of reacting with the amino group having 1 or 2 active hydrogen atoms; and a process for preparing the same. The semipermeable composite membrane of this invention is especially useful for desalination of saline or brackish water by reverse osmosis.

Semipermeable composite membrane

A semipermeable composite membrane comprising a thin semipermeable film of a polymeric material deposited on one side of a microporous substrate, said polymeric material being prepared by crosslinking a soluble polymer containing at least 30 mole % of a recurring unit of the formula ##STR1## wherein all symbols are as defined in claim 1, and having at least 0.2 milliequivalent, per gram of said polymer, of an amino group containing 1 or 2 active hydrogen atoms, with a polyfunctional compound containing at least two functional groups capable of reacting with the amino group having 1 or 2 active hydrogen atoms; and a process for preparing the same. The semipermeable composite membrane of this invention is especially useful for desalination of saline or brackish water by reverse osmosis.

A permselective membrane comprising a thin permselective film of a polymeric material, said polymeric material being prepared by cross-linking a polyaddition product between a polyepoxy compound and a polyamino compound having at least two amino groups capable of reacting with epoxy groups with a polyfunctional compound selected from the group consisting of aromatic, heterocyclic and alicyclic compounds containing at least two functional groups selected from acid halide, sulfonyl halide, isocyanate and acid anhydride groups; and a process for producing the same. The permselective membrane of this invention is especially useful for desalination of saline or brackish water by reverse osmosis.

Permselective membrane

A process and composition for producing a permselective composite membrane. The process comprises dissolving a specified imidazolone ring-containing aromatic polymer in an aqueous liquid medium containing a water-miscible amine having a pKa of more than 5.0 in a concentration of at least 5% by weight, coating the polymer solution on a microporous substrate, and drying the coating to form an ultrathin film on the substrate. The permselective composite membrane obtained is especially useful as a reverse osomsis membrane.

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Iwakuni, Japan

Takeyuki Kawaguchi