Abstract: A radiation curable resin composition suitable for making three dimensional objects comprising at least one epoxy compound, a cationic photoinitiator, wherein the resin composition has a first color or no color before cure and wherein a three dimensional object made from the resin by subjecting the resin to radiation shows a second color which is different from the color of the resin composition before cure.
Type:
Application
Filed:
October 13, 2006
Publication date:
March 8, 2007
Applicant:
DSM IP Assets B.V.
Inventors:
Glen Thommes, John Lawton, Xiaorong You
Abstract: Process for the preparation of enantiomerically enriched amino aldehydes and amino alcohols, wherein a corresponding enantiomerically enriched amino nitrile is subjected to hydrogenation in the presence of hydrogen, a hydrogenation catalyst, preferably a Pd-catalyst and a mineral acid. For the preparation of an amino aldehyde hydrogen preferably is present at a hydrogen-pressure between 0.1 and 2 MPa, in particular between 0.5 and 1 MPa. The amino aldehyde preferably is isolated in the form of a chemically and configurationally stable derivative. For the preparation of an amino alcohol, preferably at least during part of the hydrogenation hydrogen is present at a hydrogen-pressure between 2 and 10 MPa, in particular between 4 and 6 MPa. In a preferred embodiment the hydrogen-pressure initially is between 0.5 and 2 MPa and subsequently, after most of the nitrile starting material is converted, the hydrogen pressure is increased to a value between 2 and 10 MPa.
Type:
Grant
Filed:
April 7, 2003
Date of Patent:
February 27, 2007
Assignee:
DSM IP Assets B.V.
Inventors:
Bernardus Henricus Nicolaas Dassen, Bernardus Kaptein, Quirinus Bernardus Broxterman
Abstract: The invention relates to a radiation curable composition comprising relative to the total weight of the composition (A) 0–29 wt % of a cationically curable component having a linking aliphatic ester group, (B) 10–85 wt % of an epoxygroup containing component other than A, (C) 1–50 wt % of an oxetanegroup containing component, (D) 1–25 wt % of a multifunctional acrylate and a radical photoinitiator and a cationic photoinitiator.
Type:
Grant
Filed:
July 21, 2003
Date of Patent:
February 27, 2007
Assignee:
DSM IP Assets B.V.
Inventors:
Jens C Thies, Aylvin J. A. A. Dias, John A. Lawton, David L. Winmill, Jigeng Xu, Xiaorong You
Abstract: Compositions comprising a catechin as found in green tea, e.g., epigallocatechin gallate, and ligand which activates the peroxisome proliferatoractivated receptor gamma (PPAR-gamma are useful for the treatment and prevention of diabetes mellitus).
Type:
Application
Filed:
September 15, 2004
Publication date:
February 22, 2007
Applicant:
DSM IP Assets B.V.
Inventors:
Daniel Raederstorff, Sandra Teixeira, Ying Schmidt, Peter Weber, Swen Wolfram
Abstract: The present invention is a method for the treatment or prevention of preferably non-insulin dependent (NIDDM or so-called Type II) diabetes mellitus, or other conditions associated with impaired glucose tolerance such as obesity, and in particular to the use of phytanic acid derivatives for the said treatment and/or prevention. A method of making a composition for the treatment or prevention of non-insulin dependent diabetes mellitus and related diseases comprising combining phytanic acid or derivatives thereof with a pharmaceutically acceptable additive or adjuvant, and a composition for the treatment or prevention of non-insulin dependent diabetes mellitus comprising phytanic acid or derivatives thereof are also provided.
Type:
Grant
Filed:
January 27, 2004
Date of Patent:
February 20, 2007
Assignee:
DSm Nutritional Products, Inc.
Inventors:
Beat Fluehmann, Manuel Heim, Willi Hunziker, Peter Weber
Abstract: The present invention provides a test medium comprising a test microorganism, an indicator and a metal in ionized form, wherein the valence of said metal is at least 2 and the concentration of said metal is between 0.001 M and 1 M. Furthermore, there is provided a method for the determination of the presence of an antibiotic characterized in that a metal salt is added to said test medium and/or to said sample of fluid. Finally, there is provided a kit suitable for the determination of an antibiotic in a fluid.
Abstract: An aqueous composition comprising components: (A) 50 to 99 wt. % of a vinyl polymer(s) having a gradient polymeric morphology; and (B) 1 to 50 wt. % of at least one polymer not having a gradient polymeric morphology, wherein components (A) and (B) add up to 100%.
Type:
Grant
Filed:
September 27, 2002
Date of Patent:
February 6, 2007
Assignee:
DSM IP Assets B.V.
Inventors:
Jurgen Scheerder, Tijs Nabuurs, Gerardus Cornelis Overbeek, Alfred Jean Paul Buckmann
Abstract: The invention relates to a method for producing monocarbonyl compounds or biscarbonyl compounds or hydroxyl compounds by ozonizing, unsaturated organic carbon compounds that, per molecule, have one or more olefinic or aromatic double bonds, which can be cleaved by ozone, and by subsequently processing the ozonization products.
Type:
Grant
Filed:
February 13, 2002
Date of Patent:
January 30, 2007
Assignee:
DSM Fine Chemicals Austria NFG GmbH & Co KG
Inventors:
Alexander Sajtos, Engelbert Kloimstein, Curt Zimmermann
Abstract: A coated optical fiber can have a primary coating and a secondary coating, where the primary coating can have good microbending resistance and is obtained by curing a composition having a high cure speed. In one example, a coated optical fiber can include as optical fiber, a primary coating and a secondary coating. The optical fiber can have an attenuation increase of less than 0.650 dB/km at 1550 nm, with the primary coating having a modulus retention ratio of at least 0.5, a glass transition temperature of ?35° C., and where the primary coating is obtained by curing a primary coating composition having a cure dose to attain 95% of the maximum attainable modulus of less than 0.65 J/cm2.
Type:
Grant
Filed:
October 3, 2005
Date of Patent:
January 30, 2007
Assignee:
DSM IP Assets B.V
Inventors:
Jan van Eekelen, Sandra Nagelvoort, Duurt Alkema, Paul Buijsen, Huimin Cao, Robert W. Johnson, David M. Szum
Abstract: A process for the manufacture of 3-phytyl-2,5,6-trimethylhydroquinone-1-acetate, and optionally therefrom tocopheryl acetate, comprises either C-alkylating 2,3,6-trimethylhydroquinone-1-acetate with isophytol or phytol in the presence of a sulphur(VI) containing catalyst of the formula R1SO2OH, wherein R1 signifies hydroxy, halogen, lower alkyl, halogenated lower alkyl or aryl, in an aprotic organic solvent, or O-alkylating 2,3,6-trimethylhydroquinone-1-acetate with a phytyl halide in a polar aprotic organic solvent in the presence of a base, and subjecting the so-obtained 4-O-phytyl-2,3,6-trimethylhydroquinone-1-acetate to a rearrangement reaction, and in each case optionally submitting the so-obtained 3-phytyl-2,5,6-trimethylhydroquinone-1-acetate to a ring closure reaction to produce tocopheryl acetate.
Type:
Grant
Filed:
September 29, 2003
Date of Patent:
January 30, 2007
Assignee:
DSM IP Assets B.V.
Inventors:
Werner Bonrath, Claus Dittel, Thomas Netscher, Thomas Pabst, Rudolf Schmid
Abstract: The invention relates to two-component chemical fastening systems, the A-component containing an unsaturated polyester and a reactive diluent, and the B-component containing a peroxide and an extender, wherein the extender is either a monomeric component according to formula 1 (A—CH?CH—O)n—R ??(formula 1) or a resinous compound comprising, in a covalently built-in manner, a component having vinyl ether group(s), and the content of the peroxide in the B-component is from 0.5 to 99 wt. %. In the formula A, R and n are specified as hydrogen or C1-3 alkyl; C1-20 (hetero)-aliphatic with hydroxyl or amino groups, or poly(C2 or 3)glycol with 2–120 glycol units; and 1 to 4, respectively. The resinous compounds with built-in vinyl ether group(s) (0.5 to 50 wt.
Type:
Grant
Filed:
December 19, 2001
Date of Patent:
January 23, 2007
Assignee:
DSM IP Assets B.V.
Inventors:
Jan H Udding, Agnes E Wolters, Heinz Wilhelm, Armin Pfeil, Thomas Bürgel, Lutz Sager
Abstract: Endless rope containing primary strands, the primary strands containing laid-up secondary strands, the laid-up secondary strands containing rope yarns, wherein the primary strands have been laid up from 3, 4 or 6 secondary strands, wherein the rope contains a splice in at least every primary strand and wherein the rope preferably has been laid up from 3, 4 or (1+6) primary strands or, alternatively, has been braided from 8 or 12 primary strands.
Type:
Grant
Filed:
May 27, 2003
Date of Patent:
January 23, 2007
Assignee:
DSM Ippassets B.V.
Inventors:
Paulus Johannes Hyacinthus Marie Smeets, Christiaan Henri Peter Dirks
Abstract: A pressurized fluid conduit includes a mono-layer of a semi-crystalline thermoplastic material that has a hardness of between 50 and 65 Shore D and a modulus at 150° C. of at least 60 MPa. The semi-crystalline thermoplastic material may be used for making a mono-layered pressurized fluid conduit via an extrusion molding process, such as an extrusion blow-molding process.
Abstract: The invention relates to a process for preparing nitric acid by treating an aqueous medium containing organic compounds and phosphate, said process comprising: feeding the aqueous medium to a nitric acid synthesis zone; forming nitric acid by contacting the aqueous medium with a gaseous medium in said nitric acid synthesis zone, said gaseous medium containing NO2; discharging an off-gas from said nitric acid synthesis zone; wherein the total organic carbon concentration in the aqueous medium entering the nitric acid synthesis zone is less than 0.03 wt. %.
Type:
Grant
Filed:
December 2, 2002
Date of Patent:
January 9, 2007
Assignee:
DSM IP Assets B.V.
Inventors:
Arno Herald Benneker, Hendrik Oevering, Johannes Antonius Leonardus Brouwers
Abstract: The invention relates to peroxide compositions comprising a reactive diluent for the peroxide, wherein the diluent is either a component containing one or more vinyl ether group(s) and having a monomeric structure according to formula 1, (A—CH?CH—O)n—R, or is a suitable resinous compound comprising, in a covalently built-in manner, a component containing one or more vinyl ether group(s). In the formula A represents hydrogen or an alkyl group with 1–3 C atoms, and individual A groups may be different R either represents an aliphatic group, optionally branched, with 1–20 C atoms, etc. ?or represents a polyethylene or polypropylene glycol with 2 to 120 glycol units, etc. and n is 1, 2, 3 or 4.
Type:
Grant
Filed:
December 19, 2001
Date of Patent:
January 9, 2007
Assignees:
DSM IP Assets B.V., Hilti Aktiengesellschaft
Inventors:
Jan H Udding, Agnes E Wolters, Heinz Wilhelm, Armin Pfeil, Thomas Bürgel, Lutz Sager
Abstract: A process for the manufacture of (all-rac)-?-tocopherol by the acid-catalyzed reaction of trimethylhydroquinone with isophytol or phytol is characterized by carrying out the reaction in the presence of methane trisulphonate as the catalyst in an organic solvent. The product of the process is the most active and industrially most important member of the vitamin E group.
Type:
Grant
Filed:
September 30, 2003
Date of Patent:
December 26, 2006
Assignee:
DSM IP Assets B.V.
Inventors:
Werner Bonrath, Alois Haas, Simone Hoppmann, Thomas Netscher, Horst Pauling
Abstract: An optical fiber comprises a flame retardant tight-buffer coating. The tight-buffer coating has a limiting oxygen index of at least 20% and preferably has a durable tensile strength. Flame retardant, inner primary, outer primary, ink, ink base and single coatings and coating compositions as well as flame-retardant matrix materials are also provided.
Type:
Grant
Filed:
November 7, 2002
Date of Patent:
December 26, 2006
Assignee:
DSM IP Assets B.V.
Inventors:
Edward J. Murphy, Nancy L. Coster, Keri Lynn Unterzuber, Christopher Todd Baker
Abstract: A process for the manufacture of 2,3,5-trimethylhydroquinone diacylate comprising reacting ketoisophorone with an acylating agent in the presence of a NH- or CH-acidic catalyst, particularly certain bis(perfluorinated hydrocarbyl sulphonyl) imides and metal salts thereof and, respectively, certain tris(perfluoroalkanesulphonyl or pentafluorobenzenesulphonyl) methanes and metal salts thereof. The acylating agent is particularly an acid anhydride, an acyl halide or an enol ester. The so-obtained 2,3,5-trimethylhydroquinone diacylate can be converted into (all-rac)-?-tocopherol by transesterification to yield 2,3,5-trimethylhydroquinone and reaction of the latter with isophytol. (all-rac)-?-Tocopherol itself is the most active member of the vitamin E group.
Abstract: The invention relates to a method for alkylating cross-linked polymers containing N- or amino, ammonium or spiro-bicyclic ammonium groups. According to said method, the gelated polymers, obtained by polymerization and cross-linking, are a) optionally, deprotonated in water, an organic solvent or in a mixture of an organic solvent and water, by adding a base, b) optionally, washed once or more with water, an organic solvent or a mixture of an organic solvent and water, then c) one or more alkylators are added to the gel suspension which is stirred in water, an organic solvent or in a mixture of an organic solvent and water, at a temperature of between 5 and 160° C. at normal or increased pressure, with a base being added after a short mixing time and d) reprotonation is carried out using a mineral acid, optionally after one or more washing steps, resulting in the alkylated, cross-linked polymers containing N- or amino, ammonium or spirobicyclic ammonium groups, accordingly.
Type:
Grant
Filed:
November 20, 2001
Date of Patent:
December 12, 2006
Assignee:
DSM Fine Chemicals Austria Nfg GmbH & Co KG
Abstract: An aqueous coating composition containing a non-crosslinkable water-dispersible oligomer(s); a dispersed polymer(s); water and optionally co-solvent wherein the composition has an open time of at least 20 minutes; a wet edge time of at least 10 minutes; a tack free time of ?24 hours and an equilibrium viscosity of 5,000 Pa·s.
Type:
Grant
Filed:
March 21, 2003
Date of Patent:
December 5, 2006
Assignee:
DSM IP Assets B.V.
Inventors:
Emilio Martin, Jurgen Scheerder, Gerardus Cornelis Overbeek, Ronald Tennebroek, Tijs Nabuurs, Pablo Steenwinkel