From Reactant Having At Least One -n=c=x Group (wherein X Is A Chalcogen Atom) As Well As Precursors Thereof, E.g., Blocked Isocyanate, Etc. Patents (Class 528/44)

From at least one blocked -n=c=x group (Class 528/45)

Process of polymerizing in the presence of a specified material other than reactant (Class 528/48)

From n=c=x reactant having at least two -c-nh-c(=x)- groups (Class 528/59)

With reactant compound containing three or more XH, -C(=X)-XH, -NH, =NH, or HNH groups or combination thereof (Class 528/60)
With organic nitrogen reactant which contains two NH, =NH, or HNH groups (Class 528/61)
With reactant having two -XH groups (Class 528/65)

From two or more reactants containing -n=c=x groups (Class 528/67)

With organic compound reactant containing at least two nh, hnh or =nh groups and wherein the reactant composition is devoid of -c-xh, -c(=x)xh or anhydride (Class 528/68)

Reactant contains a single -n=c=x group (Class 528/69)

Reactant contains a fluorine atom (Class 528/70)

Reactant contains at least one salt group, e.g., quaternary ammonium salt, etc. (Class 528/71)

Reactant contains at least one phosphorus atom (Class 528/72)

Reactant contains at least one heterocyclic ring (Class 528/73)

Reactant contains at least one bridged- or fused-ring system (Class 528/74)

Reactant which is a fatty acid glycerol ester, a fatty acid or salt derived from a naturally occurring glyceride, tall oil, or a fatty acid derived from tall oil (Class 528/74.5)

Reactant contains at least one ethylenically unsaturated group (Class 528/75)

With ether or thioether compound containing at least two -c-x-c- groups (Class 528/76)

With reactant compound containing at least two -c-c(=x)-x-c groups and which compound is devoid of c-nh, c=nh or c-n(h)-h groups (Class 528/80)

With reactant containing at least two -c-c(=x)-x groups (Class 528/84)

With reactant containing at least two -xh groups (Class 528/85)

New polyester polyurethanes, process for preparaing them, pseudolatices produced from the said polyester polyurethanes and their use in cosmetic compositions

Publication number: 20030191271

Abstract: The present invention relates to polyurethanes and a process for preparing them.

Type: Application

Filed: February 23, 2000

Publication date: October 9, 2003

Inventors: Jean Mondet, Bertrand Lion, Nathalie Mougin, Bertrand Piot, Valerie De La Poterie
Coating agent and method for producing same

Patent number: 6630537

Abstract: A two-component coating composition comprising (I) a component comprising at least one isocyanate as crosslinking agent and (II) a component comprising at least one binder having functional groups which react with isocyanate groups. Component (I) comprises at least one isocyanate Ia) having at least one diisocyanate structural unit which has an unsaturated/aromatic or non-aromatic ring structure having 5-10 ring atoms and two isocyanate groups attached to the ring structure. Instead of this isocyanate Ia) or in addition thereto it is possible to use an oligomer Ib) of this isocyanate Ia) having from 2 to 10 isocyanate units, especially a trimer Ib) and/or partially blocked isocyanates Ia) and/or oligomers Ib)(=crosslinkers Ic).

Type: Grant

Filed: January 17, 2000

Date of Patent: October 7, 2003

Assignee: BASF Coatings AG

Inventors: Hubert Baumgart, Heinz-Peter Rink, Bernd Bruchmann, Fritz Bartol, Günther Mohrhardt
Method for purifying nucleic acids from feces

Patent number: 6630585

Abstract: An object of the present invention is to provide a method capable of removing contaminants other than nucleic acids derived from feces at high efficiency, and thereby obtaining nucleic acids with high purity, although it is difficult to purify nucleic acids in high purity from feces. In the present invention, a feces sample is purified using a quaternary ammonium salt such as, for example, hexadecyltrimethylammonium bromide.

Type: Grant

Filed: June 19, 2001

Date of Patent: October 7, 2003

Assignee: Shimadzu Corporation

Inventor: Kouichi Kojima
Thermally setting substance mixture and use thereof

Publication number: 20030181539

Abstract: A heat-curable composition comprising

Type: Application

Filed: April 10, 2003

Publication date: September 25, 2003

Inventors: Hubert Baumgart, Uwe Meisenburg, Karl-Heinz Joost
Temperature-controlled process for preparation of homogeneous polymers

Publication number: 20030176602

Abstract: A process which allows for the preparation of a substantially uniform hydrogel, such as a polyacrylamide hydrogel, wherein the uniformity of the hydrogel, in terms of the rheological properties, is established by limiting the temperature differential in the reaction process to a very narrow range, such as no more than 5° C. This process allows for polymers novel in their uniformity also by means of being suitably a continuous process. A continuous process for the preparation of a substantially uniform hydrogel, such as a polyacrylamide hydrogel, led to high uniformity by preventing unreacted monomers, such as acrylamide, from surpassing the gel front in the pipe reactor. This was achieved by use of a static mixer. Polymer hydrogels are rendered biocompatible by means of a novel washing process wherein the polymer specific surface area is appropriately set.

Type: Application

Filed: August 26, 2002

Publication date: September 18, 2003

Inventors: Richard Schmidt, Robert Lessel, Jens-Erik Sorensen
Quick-setting mixtures and kits with polyfunctional cyanates and amines, the thermosets produced therefrom and methods for the production thereof

Publication number: 20030176616

Abstract: The invention describes a fast curable system for the preparation of amine modified thermosettings containing triazine groups, the system comprising at least one polyfuctional organic monomeric or prepolymerized cyanate and at least one primary or secondary amine, wherein the amount of amine is selected such that the molar ratio of cyanate radicals to amine radicals is from 95:5 to 50:50, and optionally additional additives, characterized in that the amine is present in a form having a blocked or decreased reactivity which can be reactivated without reacting it with a chemical participant of reaction. Further, it is directed to amine modified thermosetting materials containing triazine groups as well as to a method for preparing same.

Type: Application

Filed: November 8, 2002

Publication date: September 18, 2003

Inventors: Jorg Bauer, Monika Bauer, Christoph Uhlig
PROCESS FOR PRODUCING POLYISOCYANATES OF THE DIPHENYL METHANE SERIES HAVING A REDUCED COLOR VALUE

Publication number: 20030176626

Abstract: Polyisocyanates of the diphenyl methane series having reduced color values are obtained by a) reacting aniline and formaldehyde in the presence of an acid catalyst to form a polyamine, b) neutralizing the reaction mixture containing polyamine with a base, c) separating the neutralized mixture into the aqueous and the organic phases, d) adding a base to the organic phase and then e) phosgenating the resulting polyamine to produce the corresponding polyisocyanate.

Type: Application

Filed: March 10, 2003

Publication date: September 18, 2003

Inventors: Torsten Hagen, Friedhelm Kamper, Daniel Koch, Rudolf Uchdorf, Stefan Wershofen
High performance sealant formulations based on MDI prepolymers

Publication number: 20030176617

Abstract: Disclosed are certain moisture curable prepolymers formed by the reaction of diphenylmethane diisocyanate (MDI) with conventional polyether polyols to produce sealants and coatings exhibiting excellent combinations of physical properties, most notably, high tensile strength, high tear resistance, and high elongation. These combinations of physical properties in the moisture-cured polymer are superior to those obtained from prepolymers of the so-called “low unsaturation” polyether polyols. The moisture curable prepolymers offer improved polymer properties, reduced viscosity, and lower raw materials cost in relation to the prior art prepolymers based on low unsaturation polyether polyols.

Type: Application

Filed: April 16, 2003

Publication date: September 18, 2003

Inventor: Chin-Chang Shen
Polyurethane elastomers having improved physical properties and a process for the production thereof

Publication number: 20030176615

Abstract: A polyol composition having a number average molecular weight of from about 1,000 to about 3,000 Daltons is made up of (1) at least 60% by weight of a low monol polyoxypropylene polyol having a number average molecular weight of from about 2,000 to 12,000 Da and a degree of unsaturation less than or equal to 0.02 meq/g and (2) no more than 40% by weight of a polyol having a number average molecular weight of from about 400 to about 1,000 Da and a polydispersity index greater than 1.1. This polyol composition is reacted with a diisocyanate, a polyisocyanate, an isocyanate-terminated prepolymer or an isocyanate-terminated quasi-prepolymer to produce polyurethane elastomers having good physical and mechanical properties. Any of the known processes for producing polyurethane elastomers, including one-shot processes, may be used to produce elastomers in accordance with the present invention.

Type: Application

Filed: March 8, 2002

Publication date: September 18, 2003

Inventors: Bruce D. Lawrey, Kurt C. Frisch, Nigel Barksby
Continuous process for the synthesis of aromatic urethanes

Publication number: 20030171526

Abstract: Process for the preparation of aromatic urethanes consisting in reacting organic carbonates with aromatic amines in reactors operating in continuous, feeding a total quantity of aromatic amines in a percentage, with respect to the weight of the total mixture, ranging from 4 to 30, and maintening a low concentration of amine in the reactor.

Type: Application

Filed: March 24, 2003

Publication date: September 11, 2003

Inventors: Pietro Cesti, Aldo Bosetti, Ezio Battistel, Vittorio Carletti, Renzo Bignazzi
POLYURETHANE MATERIAL FOR TWO AND THREE PIECE GOLF BALLS AND METHOD

Publication number: 20030166819

Abstract: A novel composition useful for golf ball covers that comprises a blend of a dilsocyanate/polyol polyurethane prepolymer with a curing agent comprising a blend of slow-reacting diamine with a fast-reacting diamine such as dimethylthio 2,4-toluenediamine and diethyl 2,4-toluenediamine, respectively. A golf ball cover made with this composition exhibits the characteristic feel and playability of a balata cover with superior durability characteristics (cut and shear resistance) which exceed those of a balata or ionomer cover.

Type: Application

Filed: August 20, 1998

Publication date: September 4, 2003

Inventors: PIJUSH K. DEWANJEE, MICHAEL TZIVANIS, SANJAY M. KUTTAPPA
FILM FOR ACCELERATED COMPOST FERMENTATION

Publication number: 20030166820

Abstract: [Objective] The objective of the present invention lies in shortening the compost preparation period by a simple method and preventing contamination of underground water.

Type: Application

Filed: July 5, 2000

Publication date: September 4, 2003

Inventors: KIYOTAKA ISHINO, TAKATOSHI KURATSUJI, JUN YAMAMOTO, TAKASHI IKETAKI
Copolymers of tetrahydrofuran, ethylene oxide and an additional cyclic ether

Publication number: 20030166821

Abstract: A copolymer with recurring constituent units derived by polymerizing tetrahydrofuran, ethylene oxide and at least one additional cyclic ether that can be substituted or unsubstituted that decreases the hydrophilicity imparted to the copolymer by the ethylene oxide.

Type: Application

Filed: January 8, 2003

Publication date: September 4, 2003

Inventors: Gerfried Pruckmayr, Charles Francis Palmer, Gary Arthur Lodoen
Amphiphilic cationic associative polymers, preparation process, use as thickeners and composition comprising them

Publication number: 20030166822

Abstract: Novel water-soluble or water-dispersible amphiphilic cationic associative polymers, a process for preparing them and their use in compositions for topical application, such as for cosmetic use, as thickeners, and the compositions comprising these polymers.

Type: Application

Filed: January 21, 2003

Publication date: September 4, 2003

Inventors: Sylvie Benard, Simon Trouille, Mireille Arnaud-Roux
Polymers with antimicrobial, bioresistant and fungal resistant properties

Publication number: 20030166823

Abstract: A polymer that contains an antimicrobial, bioresistant and fungal resistant moiety that is linked into the backbone of the polymer. The moiety is a bromine atom and a nitro group linked to one or more of the carbon atoms forming the backbone. The moiety can appear in the polymer chain in various levels of occurence from 5 ppm to has high as 100% with a normal occurance of between 1000 ppm to 20,000 ppm. Polymer types that can be created with this moiety to display these properties include, but are not limited to, polyurethane, polyurea, polyamide, polyester, polycarbonate, polyether, polysiloxane, epoxy, polyacrylic, polyacrylate, polyvinyl.

Type: Application

Filed: January 23, 2003

Publication date: September 4, 2003

Inventor: Thomas Daly
Terminal-blocked isocyanate prepolymer having oxadiazine ring, process for producing the same, and composition for surface-coating material

Publication number: 20030162930

Abstract: The end-blocked isocyanate prepolymer having an oxadiazine ring according to the present invention is characterized in that at least one of isocyanate groups of a NCO-terminated isocyanate prepolymer, which has NCO groups at the ends and comprises units derived from an oxadiazinetrione compound (A) represented by the following formula (1) and units derived from an active hydrogen compound (B) represented by the following formula (2), is blocked with a unit derived from an end-blocking agent (C) having at least one active hydrogen in one molecule, and that the end-blocked isocyanate prepolymer has a softening point of not lower than 50° C.

Type: Application

Filed: November 12, 2002

Publication date: August 28, 2003

Inventors: Toshiaki Kuwatsuka, Hideaki Ogata, Manabu Shimoda, Ryuuji Haseyama, Izumi Mega
Polyurethane compositions with a low content of diisocyanate monomer(s)

Publication number: 20030162933

Abstract: The invention concerns processes for producing polyurethane compositions with a low content of diisocyanate monomer(s), the use of polyurethane compositions produced by these processes, especially in a bonding process or for coating purposes, and adhesives and coating compounds that contain these types of polyurethane compositions.

Type: Application

Filed: February 21, 2003

Publication date: August 28, 2003

Applicant: Jowat AG

Inventors: Theodor Hippold, Dieter Guse, Christian Terfloth
Process for the preparation of soft, low-shrinkage, thermoplastic polyurethane elastomers which can be easily released from the mold

Publication number: 20030162932

Abstract: The present invention relates to a process for the production of molding compositions, which can easily be released from the mold. These molding compositions comprise thermoplastic polyurethanes with a hardness of 45 to 65 Shore A, with good mechanical properties, with low shrinkage and good low temperature properties.

Type: Application

Filed: February 19, 2003

Publication date: August 28, 2003

Inventors: Wolfgang Brauer, Herbert Heidingsfeld, Hans-Georg Hoppe, Hans-Georg Wussow, Eva Brigitte Eggeling, Wolfgang Rohrig
Process for preparing an elastomer

Publication number: 20030162931

Abstract: Process for preparing a polyurethane elastomer having an apparent overall density of more than 150 kg/m3 comprising reacting a polyisocyanate and an isocyanate-reactive composition, optionally in the presence of water, wherein the reaction is conducted at an isocyanate index of 85 to 120, the polyisocyanate comprising: a) 80-100% by weight of a diphenylmethane diisocyanate comprising at least 40% by weight of 4,4′-diphenylmethane diisocyanate and/or a derivative of said diphenylmethane diisocyanate which derivative is liquid at 25° C.

Type: Application

Filed: January 3, 2003

Publication date: August 28, 2003

Inventors: Gerhard Jozef Bleys, Eric Huygens
Polyurethanes with improved tear propagation resistance

Patent number: 6610811

Abstract: Polyurethanes having improved tear resistance which are the reaction product of the following components: A) a polyol component containing dimer diol and/or trimer triol and/or an OH-terminated polyester produced from polycarboxylic acids, preferably dimer fatty acid and/or trimer fatty acid, and diols and B) an isocyanate component containing prepolymers obtained by reacting polyfunctional isocyanates with dimer diol and/or trimer triol and/or an OH-terminated polyester produced from polycarboxylic acids, preferably dimer fatty acid and/or trimer fatty acid, and diols; and processes for their manufacture.

Type: Grant

Filed: August 24, 1999

Date of Patent: August 26, 2003

Assignee: Henkel Kommanditgesellschaft auf Aktien

Inventors: Alfred Westfechtel, Roland Gruetzmacher, Rainer Hoefer
Continuous production of thermoplastic polyurethane elastomers

Publication number: 20030158365

Abstract: A continuous process for the preparation of a thermoplastic polyurethane elastomer is disclosed. The process is carried out at 130 to 250° C. and comprises reacting at least one polyether diol with at least one organic diisocyanate and 1,4-di-(2,2′-hydroxyethyl)-hydroquinone, in the presence of tin dioctoate as a catalyst. The resulting thermoplastic polyurethane has a glass transition temperature (Tg) below 50° C. The inventive thermoplastic polyurethane is suitable for making injection molded or extruded articles.

Type: Application

Filed: January 9, 2002

Publication date: August 21, 2003

Inventors: Wolfgang Brauer, Herbert Heidingsfeld, Hans-Georg Hoppe, Wolfgang Kaufhold, Bernhard Schulte, Jack C. Chan, Steven C. Manning, Nicholas R. Nardo
Low molecular weight polyurethane resins

Publication number: 20030158364

Abstract: Disclosed is a polyurethane resin having a number average molecular weight of up to 5,000 which is prepared by reacting a diisocyanate compound with at least one monomer diol compound and optionally a polymer diol compound without a chain extendor to form a polymer, wherein the molar ratio of the monomer diol compound over the polymer diol compound when present is above 1 followed by capping the polymer with a terminator.

Type: Application

Filed: December 28, 2001

Publication date: August 21, 2003

Inventor: Robert Auerbach
Lightweight tire support and composition and method for making a tire support

Publication number: 20030158366

Abstract: A polyurethane-polymer composition suitable for preparing a lightweight tire support includes at least one isocyanate, at least one polyol, and at least one chain extender. A polyurethane-polymer composition can also include an additive such as a catalyst, a filler, a surfactant, a colorant, and a mold-release agent. A lightweight tire support can be prepared from a polyurethane-polymer composition by, for example, reaction injection molding. Such a tire support desirably has temperature stability and load-bearing capability.

Type: Application

Filed: February 7, 2003

Publication date: August 21, 2003

Inventors: Alan K. Schrock, Ralph D. Priester, Wayne R. Willkom, Robert E. O'Neill, Martin C. Cornell, Christoper P. Christenson
Method of coating a packaging container using crosslinkable polyester-polyurethane

Publication number: 20030152778

Abstract: The present invention provides a method of coating a packaging container with a coating composition having crosslinkable polyester-polyurethane polymer with at least two carbamate sites, and a crosslinker. The method includes coating a generally planar substrate with the coating composition, curing and forming a container or a portion of a container. The present invention also provides a coating composition and coated substrates.

Type: Application

Filed: February 12, 2003

Publication date: August 14, 2003

Inventors: Girish G. Parekh, Gregory M. Paulson, Ronald L. Goodwin
Metal surface treatment agent, and metal material coated with same

Patent number: 6605356

Abstract: A metal surface treatment agent containing the following components (A) to (D), which securely adheres to a metal substrate such as aluminum, exhibits excellent corrosion preventive properties, even with a thin film thickness, and has excellent plasticity and adhesion to paints. (A) at least one organosilicon compound having three carbonyl groups and at least one alkoxysilyl group, the organosilicon compound being present in a weight ratio of 5 to 15, based on the total of the components (A) to (D) being 100; (B) at least one epoxy resin modified with an alkanolamine, the modified epoxy resin being present in a weight ratio of 10 to 30 relative to the above total; (C) at least one blocked polyisocyanate present in a weight ratio of 50 to 70 relative to the above total; and (D) at least one amino resin present in a weight ratio of ratio 5 to 15 relative to the above total.

Type: Grant

Filed: December 10, 2001

Date of Patent: August 12, 2003

Assignee: Nikko Materials Co., Ltd.

Inventors: Takashi Ouchi, Katsuyuki Tsuchida, Masashi Kumagai
Compatibilizing agent, polyester polyol mixture containing the same, and hot-melt adhesive obtained from the mixture

Publication number: 20030149216

Abstract: A compatibilizing agent is described for a mixture of

Type: Application

Filed: December 16, 2002

Publication date: August 7, 2003

Applicant: UBE Industries, Ltd.

Inventors: Hideki Ichihashi, Yukio Kaneko
Resilient, shear resistant polyurethane compositions for golf ball covers

Publication number: 20030149215

Abstract: Disclosed herein is a polyurethane elastomer comprising the reaction product of:

Type: Application

Filed: February 1, 2002

Publication date: August 7, 2003

Applicant: UNIROYAL CHEMICAL COMPANY, INC

Inventors: Vincent J. Gajewski, Glen C. Proctor
POLYURETHANES WITH IMPROVED TEAR PROPAGATION RESISTANCE

Publication number: 20030149214

Abstract: Disclosed are polyurethanes formed from (A) a polyol component containing dimeric diol and/or trimeric triol and/or a polyether containing dimeric diol units and/or a polyester with OH-terminal groups formed from polcarboxylic acids, preferably dimeric fatty acids or trimeric fatty acids and diols; and (B) an isocyanate component containing prepolymers obtainable from the reaction between polyfunctional isocyanates and dimeric diol and/or trimeric triol and/or a polyether containing dimeric diol units and/or a polyester with OH-terminal groups formed from polycarboxylic acids, preferably dimeric fatty acids or trimeric fatty acids and diols; at least one of the components (A) and (B) contain dimeric or trimeric fatty acid or dimeric or trimeric fatty alcohol. The proposed polyurethanes have excellent resistance to tear propagation.

Type: Application

Filed: August 24, 1999

Publication date: August 7, 2003

Inventors: ALFRED WESTFECHTEL, ROLAND GRUETZMACHER, RAINER HOEFER
Process and device for pressurizing flowable reaction components

Patent number: 6602971

Abstract: Flowable reaction components of a reaction mixture which form solid or foamed material comprising filling material are transported from a storage container to a high-pressure mixing head in pressure stages by the use of gear pumps connected in series without major wear of the gear pumps.

Type: Grant

Filed: April 20, 2001

Date of Patent: August 5, 2003

Assignee: Hennecke GmbH

Inventors: Hans-Michael Sulzbach, Reiner Raffel
High index and high impact resistant polythiourethane/urea material, method of manufacturing same and its use in the optical field

Publication number: 20030144452

Abstract: A transparent, non elastomeric, high index, impact resistant polythiourethane/urea material comprising the reaction product of:

Type: Application

Filed: November 14, 2001

Publication date: July 31, 2003

Applicant: ESSILOR INTERNATIONAL COMPAGNIE GENERALE D'OPTIQUE

Inventors: Aref Ben Ahmed Jallouli, Joey O. Obordo, Yassin Yusef Turshani, Peiqi Jiang, Fadi O. Adileh, Steven Weber
Polyurethane compositions based on polyester block copolymers

Publication number: 20030144454

Abstract: The present invention relates to compositions comprising reaction products of a polyisocyanate with a polyester block copolymer and a process for the preparation thereof. These are suitable as a moisture-curing hot melt adhesive. The hot melt adhesive composition may optionally also comprise a reaction product of a polyisocyanate with a polyester polyol and/or a reaction product of a polyisocyanate with a polyether polyol.

Type: Application

Filed: December 4, 2002

Publication date: July 31, 2003

Inventors: Michael Krebs, Christoph Lohr, Andreas Brenger, Ingolf Scheffler
Process for the production of polyurethanes and/or polyureas using amine-N-oxide catalysts and compounds containing amine-N-oxides

Publication number: 20030144453

Abstract: The subject of the invention is a process for the production of polyurethanes and/or polyureas using amine oxides as catalysts and a composition containing an amine oxide, a polyisocyanate with at least two isocyanate groups and a compound with at least two reactive hydrogen atoms.

Type: Application

Filed: January 18, 2002

Publication date: July 31, 2003

Inventors: Erich Frauendorfer, Werner Klockemann
Solvent-free, two-component, polyurethane reactive compositions and coatings produced therefrom that have good elongation and withstand cathodic protection

Publication number: 20030139561

Abstract: The present invention relates to a solvent-free, two-component polyurethane coating composition that is suitable for the production of coatings that have long term resistance to temperatures of to 30° C.

Type: Application

Filed: December 3, 2002

Publication date: July 24, 2003

Inventors: Jurgen Schwindt, Malte Homann, Karl-Heinz Kolping
Reacted PUR binders for coil-coating lacquers

Publication number: 20030139562

Abstract: The invention relates to reacted lacquer binders, their production and use in polyurethane single-component stoving enamels, in particular for the coil coating process.

Type: Application

Filed: December 6, 2002

Publication date: July 24, 2003

Inventors: Eberhard Koenig, Beate Baumbach, Christian Fussel
Polyurethane and water-compatible polyurethane resin

Publication number: 20030139560

Abstract: The present invention provides a polyurethane exhibiting a superior adhesive property, bonding property, weather resistance, water resistance, and the like, and comprising in a molecule: an acidic group which is neutralized by a basic compound; and a structural unit represented by general formula 1

Type: Application

Filed: November 14, 2002

Publication date: July 24, 2003

Inventors: Shohei Konishi, Shigeru Murata, Toshio Yamauchi
Polyisocyanate compounds, process for producing the same, and optical materials using the same

Patent number: 6596836

Abstract: The invention provides a novel polyisocyanate compound which is useful as a starting material for an optical material having a high refractive index, a low dispersion and excellent optical characteristics, and a process for producing this compound at good efficiency. The invention also provides an optical material having a high refractive index, a low dispersion, an excellent transparency without optical distortion and having good solvent resistance and weatherability.

Type: Grant

Filed: January 28, 2002

Date of Patent: July 22, 2003

Assignee: Hoya Corporation

Inventors: Yoshitaka Kitahara, Jian Jiang
Polyurethane cast elastomers based on durene diisocyanate

Publication number: 20030135008

Abstract: The present invention relates to polyurethane cast elastomers which are prepared from higher molecular weight polyhydroxy compounds, durene diisocyanate and low molecular weight chain-lengthening and/or crosslinking agents. These elastomers are particularly useful for the production of moldings exposed to high mechanical stresses.

Type: Application

Filed: January 15, 2000

Publication date: July 17, 2003

Inventors: Peter Heitkamper, Klaus Jost, Eduard Mayer, Thomas Munzmay, Joachim Wagner, Christian Wolfrum
Solid, radiation-curing powder coating binders and a process for preparing the same

Publication number: 20030134125

Abstract: The present invention relates to powder coating binders containing polyurethanes having (meth)acryloyl groups which are applied onto a substrate, fused with heat and cured by electromagnetic radiation and to a process for preparing the same.

Type: Application

Filed: November 15, 2002

Publication date: July 17, 2003

Inventors: Thomas Facke, Jan Weikard, Hanno Brummer, Peter Thometzek
Polyurethane resin and method for producing the same, resin composition and sheet-form article

Patent number: 6593419

Abstract: A method for producing a polyurethane resin which comprises reacting: (A) a compound having an active hydrogen-containing group, containing: (A1) a compound having one spiro ring and active hydrogen-containing groups at both ends; and (A2) an aliphatic polycarbonate polyol; (B) a polyisocyanate; and (C) a chain-extending agent. Also disclosed are a resin composition comprising the polyurethane resin and a sheet-form article comprising the poylurethane resin or the resin composition.

Type: Grant

Filed: October 11, 2001

Date of Patent: July 15, 2003

Assignee: Dainippon Ink and Chemicals, Inc.

Inventors: Hiroki Tanaka, Shigetoki Nishino, Hideyuki Takeuchi
Process for preparing a polyurethane material

Publication number: 20030130470

Abstract: Process for preparing a polyurethane material having no glass transition temperature below 25° C., which process comprises reacting a polyisocyanate and an isocyanate-reactive composition, optionally in the presence of water in an amount of less than 5% by weight on the below isocyanate-reactive composition, wherein the reaction is conducted at an isocyanate index of 80 to 140, the polyisocyanate consists of a) 80-100% by weight of diphenylmethane diisocyanate comprising at least 40%, preferably at least 60% and most preferably at least 85% by weight of 4,4′-diphenylmethane diisocyanate and/or a variant of said diphenylmethane diisocyanate which variant is liquid at 25° C.

Type: Application

Filed: January 30, 2003

Publication date: July 10, 2003

Inventors: Gerhard Jozef Bleys, Eric Huygens, Anja Vanhalle
Multifunctional allyl carbamates and coatings therefrom

Publication number: 20030130469

Abstract: Allyl carbamates are disclosed. The allyl carbamates are prepared by reacting an isocyanate with an allylic alcohol or alkoxylated allylic alcohol. Suitable isocyanates are selected from hexamethylene diisocyanate (HDI), HDI biuret, dimer, HDI trimer, HDI allophanate, isophorone diisocyanate (IPDI), IPDI trimer, IPDI allophanate, bis(isocyanatocyclohexyl)methane, and mixtures thereof. The allyl carbamates have at least two allyl functional groups per molecule. UV-curable and air-drying coatings formulated from the allyl carbamates show excellent chemical resistance and physical properties.

Type: Application

Filed: December 9, 2002

Publication date: July 10, 2003

Applicant: ARCO Chemical Technology, L.P.

Inventors: Daniel B. Pourreau, Peter J. Whitman, Stephen L. Goldstein, Stephen H. Harris
Condensation polymerisation method for isocyanates

Publication number: 20030130467

Abstract: The invention concerns a (cyclo)trimerisation method for isocyanates having at least two isocyanate functions, characterised in that it comprises: a) reacting initial isocyanate monomers having at least two isocyanate functions, optionally in the presence of other monomers reactive with the isocyanate monomers having at least two isocyanate functions at a temperature of at least 20° C., advantageously at least 50° C., and lower than 200° C., advantageously lower than 150° C., in the presence of a compound comprising at least one rare earth alcoholate function; b) stopping the reaction by inactivating the catalyst or its derivative forms in the reaction medium at a transformation rate of at least 2.5% and at most 90% of the initial isocyanate functions; and optionally c) distilling the reaction medium to eliminate the unreacted monomers.

Type: Application

Filed: June 18, 2002

Publication date: July 10, 2003

Inventors: Frederic Dallemer, Jean-Marie Bernard, Denis Relevant, Frederic Leising
Polyisocyanates blocked with epsilon-caprolactam and either diisopropylamine or 1,2,4-triazole, their preparation and use

Publication number: 20030130468

Abstract: The present invention relates to a blocked polyisocyanate containing:

Type: Application

Filed: November 18, 2002

Publication date: July 10, 2003

Inventors: Eberhard Konig, Beate Baumbach, Christian Fussel
Paint composition for automotive weather strip and glass run, and process for producing automotive weather strip and glass run

Patent number: 6590027

Abstract: A paint composition for automotive weather strips and glass runs which comprises a curable urethane-based emulsion paint having added thereto either at least two silane coupling agents selected from the group consisting of a silane coupling agent having an amino group, a silane coupling agent having an epoxy group, a silane coupling agent having a methacryloxy group and a silane coupling agent having an acryloxy group, or a reaction product obtained by previously mixing said at least two silane coupling agents. Also discloses are processes for producing automotive weather strips.

Type: Grant

Filed: March 19, 2001

Date of Patent: July 8, 2003

Assignee: Nishikawa Rubber Co., Ltd.

Inventors: Nobumasa Sato, Keigo Matsumoto, Sei Tomohiro
Compounds containing quaternary carbons, medical devices, and methods

Publication number: 20030125499

Abstract: Compounds that include diorgano groups having quaternary carbons and optionally urethane groups, urea groups, or combinations thereof (i.e., polyurethanes, polyureas, or polyurethane-ureas), as well as materials and methods for making such compounds.

Type: Application

Filed: November 13, 2002

Publication date: July 3, 2003

Inventors: Michael Eric Benz, Edward DiDomenico, Christopher M. Hobot, Randall V. Sparer, Kenneth B. Wagener, John E. Schwendeman
Injection-moldable, thermoplastic polyurethane elastomer

Publication number: 20030122282

Abstract: A thermoplastic polyurethane (TPU) elastomer and p-phenylene diisocyanate (PPDI)/polycaprolactone-based composition therefor having a unique chain extender combination for improved injection moldability. The elastomer is formed as the reaction product of: (A) from about 60 to 80% by weight of a hydroxyl-terminated poly(caprolactone) diol; (B) from about 17 to 22% by weight of a p-phenylene diisocyanate; (C) from about 3 to 10% by weight of a first hydroxyl-functional chain extender; and (D) less than about 2% by weight of a second hydroxyl-functional chain extender different from the first chain extender, the second chain extender being selected as effective to modify the crystallinity of the elastomer.

Type: Application

Filed: November 27, 2002

Publication date: July 3, 2003

Applicant: Parker-Hannifin Corporation

Inventors: Thomas L. Plummer, Val C. Comes, George R. Wallace
Two-part polyurethane adhesives for structural finger joints and method therefor

Publication number: 20030125449

Abstract: One aspect of the present invention is an adhesive composition formed from two packs. One pack includes an isocyanate-functional prepolymer formed by reacting a polyisocyanate with an alcohol (e.g., polyol). The isocyanate equivalents from the polyisocyanate exceed the hydroxyl equivalents from the alcohol. The second pack is an aqueous polymer emulsion. These two packs are combined to form the novel adhesive composition. Another aspect of the invention is a method for joining together two surfaces of wood products by application of an adhesive thereto. The first step in this method is to mist with water the wood product surfaces to be joined. An adhesive composition then is applied to the misted wood product surfaces. Alternatively, the water misting can be replaced with an aqueous emulsion being part of the adhesive composition. Finally, the adhesive composition is cured.

Type: Application

Filed: November 19, 2001

Publication date: July 3, 2003

Inventors: Gang-Fung Chen, Gary J. Walworth
Method for making transparent polythiourethane substrates in particular optical substrates

Publication number: 20030125410

Abstract: A method of fast curing polythiourethane transparent casted substrate, usable for making optical articles such as ophthalmic lenses, which comprises the steps of:

Type: Application

Filed: November 5, 2001

Publication date: July 3, 2003

Applicant: ESSILOR INTERNATIONAL COMPAGNIE GENERALE D'OPTIQUE

Inventors: Gabriel Keita, Joey O. Obordo, Pamela Anne McClimans, Yassin Yusef Turshani
Stable novel black polyurethane article colorants

Publication number: 20030115690

Abstract: Polyurethane article black colorants which comprise a novel blue polymeric anthraquinone colorant, rather than the previous standard polymeric triphenylmethane blue-type colorants are provided. Such a novel blend of colorants to produce black colorations within the target polyurethane foams exhibits very low color degradation within polyurethane foams, primarily due to the stability and resiliency of the novel anthraquinone-based polymeric colorant in the presence of high isocyanate levels, as well as large amounts of reactive tertiary amines (from catalyst residue, for example). A black colorant comprising such a novel blue polymeric colorant, as well as polyurethane foams comprising such a novel black coloring agent and methods of producing such foams are all contemplated within this invention.

Type: Application

Filed: October 26, 2001

Publication date: June 26, 2003

Inventors: Mark E. Ragsdale, Jusong Xiz, Sandy G Belue
NCO prepolymers prepared from isophorone diisocyanate and having a low monomer content

Publication number: 20030120019

Abstract: The present invention relates to solvent-free, NCO prepolymers having a residual IPDI monomer content of less than 2.0 wt. %, an NCO content of 2.0 to 5.0 wt.

Type: Application

Filed: December 11, 2002

Publication date: June 26, 2003

Inventors: Steffen Hofacker, Rolf Gertzmann, Olaf Fleck, Gerhard Ruttmann, Hanno Brummer

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