Asahi Glass Company, Limited

Nobuaki Kunii

Yukio Matsumoto

Takao Doi

Shigeyuki Kozawa

Shigehito Shibata

Takeshi Abe

Noriyuki Yoshihara

Joichi Saito

Masami Yamashita

Hiromitsu Takeyasu

Takashi Watabe

Noriko Itaya

Yoshio Hosaka

Hirotsugu Yamamoto

Hiroshi Wada

Toshihiko Higuchi

Hiroshi Ukihashi

Kiyoshi Tanabe

Makoto Noshiro

Yasumichi Ito

Sigeyuki Kozawa

Masahiko Ichimura

Yoshiyuki Yamaguchi

Tetsuya Uchino

Yasuhiko Nakano

A process for producing a condensed resin dispersion, which comprises subjecting an aldehyde and a compound condensable with the aldehyde, or their precondensate, to a condensation reaction in a dispersion medium consisting essentially of water and/or an organic solvent, to precipitate fine condensed resin particles which hardly settle in said dispersion medium, and then replacing the water and/or the organic solvent by an active hydrogen-containing compound having at least two active hydrogen-containing groups reactive with isocyanate groups.

Process for producing a condensed resin dispersion

A mold for preparing window glass provided with a gasket at a peripheral portion of a glass sheet for a window includes, placing a glass sheet in the shaping mold which has two mold parts to provide an inner cavity in which resilient sealing members are attached respectively to the two mold parts so as to come in contact with surfaces of the glass sheet so that a gasket forming cavity is formed at a peripheral area of the glass sheet by the cooperation of the inner cavity of the shaping mold, the resilient sealing members and the glass sheet, the resilient sealing member is then pushed to the contacting surface constituted by the resilient sealing member and a part of the shaping mold in the inner cavity via a pushing means after the assembling of the shaping mold. The glass sheet, and a gasket material is then injected into the gasket forming cavity to form a gasket.

Shaping mold for preparing a window glass with a gasket

The present invention relates a method for producing a polyether ester polyol containing polycarboxylic acid residues in the vicinity of the terminals, by means of a doubles metal cyanide complex catalyst. Namely, the present invention is a method for producing a polyether ester polyol by reacting a polyether polyol having a hydroxyl value of at most 400, a polycarboxylic anhydride and a monoepoxide by means of a double metal cyanide complex as a catalyst. The present invention relates also to a process for producing a flexible polyurethane foam or a polyurethane elastomer using this polyether ester polyol. The flexible polyurethane foam produced has a high thermal fusing properties, and by laminating it with e.g. cloth, it is possible to obtain a laminate having high bond strength. Further, this polyurethane elastomer has superior physical properties as compared with an elastomer obtainable by using a polyether polyol or a polyester polyol.

Methods for producing polyether ester polyols and polyurethanes

A moisture-curable resin composition containing a hydrolyzable silyl group-containing polyether compound as a curable component, said polyether compound comprising polyoxyalkylene chains derived from a polyoxyalkylene polyol having a hydroxyl value (x mgKOH/g) of from 5 to 35, a total degree of unsaturation (y meq/g) of not higher than 0.07 meq/g and y.ltoreq.0.9/(x-10), from 2 to 8 hydroxyl groups, and a content of oxyalkylene groups having at least 3 carbon atoms, of at least 60% by weight, and a hydrolyzable silyl group-containing terminal group present at least 1.3 terminals on the average of said polyoxyalkylene chains, said terminal group having a urethane bond linked to the polyoxyalkylene chain.

Moisture-curable resin composition

A method of preparing window glass provided with a gasket at a peripheral portion of a glass sheet for a window includes placing a glass sheet in a shaping mold which has two mold parts to provide an inner cavity in which resilient sealing members are attached respectively to the two mold parts so as to come in contact with surfaces of the glass sheet so that a gasket forming cavity is formed at a peripheral area of the glass sheet by the cooperation of the inner cavity of the shaping mold, the resilient sealing members and the glass sheet. The resilient sealing member is then pushed to the contacting surface constituted by the resilient sealing member and a part of the shaping mold in the inner cavity via a pushing means after the assembling of the shaping mold and the glass sheet. A gasket material is then injected into the gasket forming cavity to form a gasket.

Method of forming a gasket on window shaping mold for preparing such

A coating composition for forming a substantially non-porous moisture-permeable coating layer or film of a hydrophilic polyurethane resin, which comprises a polyol combination and a poloyisocyanate compound, or a prepolymer or polyurethane resin obtained by reacting them, said polyol combination comprising:

Prepolymer composition utilizing polyol combination for production of

A method for purifying a polyoxyalkylene alcohol, which comprises treating with a treating agent consisting essentially of a pH buffer, a polyoxyalkylene alcohol containing a double metal cyanide complex catalyst, synthesized by ring-opening polymerization of an alkylene oxide in the presence of said catalyst, and then removing the catalyst and the treating agent from the polyoxyalkylene alcohol.

Method for purifying a polyoxyalkylene alcohol

Prepolymer composition which comprises 10 to 95% by weight of a first isocyanate-group-containing prepolymer (A) obtained by reacting an excess equivalent of an aromatic diisocyanate (c) containing an isocyanate group directly bonded to the aromatic nucleus with an oxyethylene-group-containing polyoxyalkylene polyol (a) of a relatively high molecular weight; 90 to 5% by weight of a second isocyanate-group-containing prepolymer (B) obtained by reacting an excess equivalent of an organic diisocyanate (d) not containing an isocyanate group directly bonded to the aromatic nucleus with an oxyethylene-group-containing polyoxyalkylene polyol (b) of a relatively high molecular weight; and, as the case may be, an unreacted substance of diisocyanate which has been used in the production of the respective prepolymers (A) and (B), the prepolymer composition containing the isocyanate group in a range of from 3 to 15% by weight, wherein the polyoxyalkylene polyol (a) and the polyoxyalkylene polyol (b) are either same or different each other, each consisting of at least one polyoxyalkylene polyol, and wherein the polyoxyalkylene polyol (a) and the polyoxyalkylene polyol (b) in total contain functional groups in an average number of above 2 but below 3 and have an average hydroxyl value of from 30 to 80 and an average content of the oxyethylene group of from 70 to 95% by weight.

Prepolymer composition, process for its production, and its use

A coating composition for forming a substantially non-porous moisture-permeable coating layer or film of a hydrophilic polyurethane resin, which comprises a polyol combination and a polyisocyanate compound, or a prepolymer or polyurethane resin obtained by reacting them, said polyol combination comprising:

Coating composition a non-porous moisture-permeable coating layer or

A process for producing a shaped article of a non-cellular or microcellular polyurethane elastomer by reaction injection molding by using a high molecular weight active hydrogen compound component (A), a chain extender component (B) and a polyisocyanate compound component (C) as starting materials, wherein

Process for producing polyurethane elastomer and composition as starting

A process for producing a urethane-modified polyisocyanurate foam by using at least four components of a polyol, a polyisocyanate compound in an excess amount relative to the polyol, an isocyanate trimerizing catalyst and a foaming agent, as the essential starting materials, wherein a polyester ether polyol comprising, as the constituting units, residues of polyhydric phenols and/or polyhydric alcohols, residues of polybasic carboxylic acids and oxyalkylene groups and having a hydroxyl value of from about 100 to about 500, is employed as at least a part of said polyol.

Process for producing a urethane-modified polyisocyanurate foam

A polymer polyol is produced by polymerizing a monomer having a polymerizable unsaturated group in a nitrogen bond-containing unsaturated polyol or polyol mixture having at least two nitrogen-containing bonds formed by reacting isocyanate groups with active hydrogen groups, at least one polymerizable unsaturated group and at least 1.7 hydroxyl groups, as average. A polymer polyol is produced by polymerizing a monomer having a polymerizable unsaturated group in a nitrogen bond-containing unsaturated polyol or polyol mixture having at least 1.7 hydroxyl groups as average obtained by reacting a polyisocyanate with a mixture of a substantially saturated polyol having at least two hydroxyl groups and an unsaturated active hydrogen compound having at least one active hydrogen group and at least one polymerizable unsaturated group or by reacting said polyisocyanate with either of said substantially saturated polyol or said unsaturated active hydrogen compound and then reacting the remainder with the intermediate; or a polyol mixture obtained by diluting said nitrogen bond-containing unsaturated polyol or polyol mixture with a substantially saturated polyol.

Process for producing polymer polyol

Ethylene-tetrafluorethylene copolymer compositions are stabilized against thermal degradation by incorporating therein a small amount of a copper compound.

Stabilized ethylene-tetrafluoroethylene copolymer composition

A powder lining method which comprises coating a substrate with a synthetic resin powder containing 2 to 50 wt. % of a carbon fiber having a length of less than 1000 microns and subsequently baking. The use of a synthetic resin powder containing carbon fibers makes possible the preparation of significantly thicker linings in a single step than was possible previously.

Growing community of inventors

Yokohama, Japan

Nobuaki Kunii