Abstract: A stabilizer composition comprising (A) a compound of the formula (I) wherein R is (CH2—CH2—O—)n, —R2; —CH2—CH(OH)—CH2—O—R2; or —CH(R3)—CO—O—R4; n is 0 or 1; R2 is C1-C13alkyl or C2C20alkenyl or C6-C12aryl or CO—C1-C18alkyl; R3 is H or C1-C8 alkyl; R4 is C1-C12alkyl or C2-C12alkenyl or C5C6cycloalkyl; and (B) one or more compounds selected from benzotriazoles of the formula (IIa), 2-hydroxybenzophenones of the formula (IIb), oxalanilides of the formula (IIc), 2-hydroxyphenyltriazines of formula (IId), cinnamates of formula (IIe), and benzoates of formula (IIf) as defined in claim 1, is especially effective towards stabilizing organic materials against degradation induced by light, heat or oxidation.
Type:
Grant
Filed:
September 23, 2003
Date of Patent:
February 19, 2008
Assignee:
Ciba Specialty Chemicals Corporation
Inventors:
Adalbert Braig, David George Leppard, Frédérique Wendeborn
Abstract: The present invention includes a molecular melt composition comprising an antioxidant and a coupling agent. The molecular melt is partially amorphous in nature. The invention also includes a method for making the molecular melt composition and a method for using the molecular melt to produce coupled polymers. The invention further includes a method for using an antioxidant to phlagmatize a coupling agent.
Type:
Grant
Filed:
November 27, 2006
Date of Patent:
February 5, 2008
Assignee:
Dow Global Technologies, Inc.
Inventors:
Marlin E. Walters, Marius W. Sorenson, Malcolm F. Finlayson, Robin J. Lee, Clark H. Cummins
Abstract: The present invention relates to a cyclic ketone peroxide formulation comprising one or more crystallizing cyclic ketone peroxides, one or more co-crystallizing compounds which solidify in said cyclic ketone peroxide formulation at a temperature above the crystallization temperature of the crystallizing cyclic ketone peroxide, and, optionally, one or more conventional phlegmatizers (diluents). These formulations show improved safety and storage stability compared to conventional cyclic ketone peroxide formulations. The invention also pertains to the use of these formulations in (co)polymerization and (co)polymer modification processes.
Type:
Grant
Filed:
December 1, 2003
Date of Patent:
August 7, 2007
Assignee:
Akzo Nobel N.V.
Inventors:
Bart Fischer, John Meijer, Rolf Hendrik Van Den Berg, Johan Nuysink
Abstract: The invention relates to an aqueous organic peroxide emulsion comprising an anti-freeze agent, a protective colloid, and a plasticiser wherein the plasticizer is an ester having a ratio of the number of carbon atoms present in the pasticiser molecule (excluding aromatic carbon atoms) to the number of ester groups in the molecule of higher than 8. These emulsions show a reduced droplet growth as compared to emulsions comprising a conventional plasticizer, i.e. the emulsions of the invention are more stable upon storage than the emulsions of the prior art. The invention emulsions are particularly useful in polymerization processes such as the polymerization of vinyl chloride monomer.
Abstract: The present invention includes a molecular melt composition comprising an antioxidant and a coupling agent. The molecular melt is partially amorphous in nature. The invention also includes a method for making the molecular melt composition and a method for using the molecular melt to produce coupled polymers. The invention further includes a method for using an antioxidant to phlagmatize a coupling agent.
Type:
Grant
Filed:
March 29, 2004
Date of Patent:
November 28, 2006
Assignee:
Dow Global Technologies Inc.
Inventors:
Marlin E. Walters, Marius W. Sorenson, Malcolm F. Finlayson, Robin J. Lee, Clark H. Cummins
Abstract: A high performance thermoplastic hose useful as a power steering hose, the high performance thermoplastic hose comprising a high performance engineering thermoplastic such as polyurethane and a chlorine-containing polyolefin such as chlorinated polyethylene, chlorinated polypropylene, chlorinated copolymers containing ethylene and propylene, chlorosulfonated polyethylene, chlorosulfonated polypropylene, chlorosulfonated copolymers of ethylene and propylene or mixture thereof, is disclosed. Also disclosed are a method for manufacturing the high performance thermoplastic hose, and a thermoplastic vulcanizate capable of resisting chemical attack and withstanding temperatures up to about 300° F.
Abstract: A curing agent for epoxy agent having N-phenyl-p-phenylenediamine(4-aminodiphenylamine). An epoxy resin combination having a main agent and a curing agent. The main agent has an epoxy resin. The curing agent has a N-phenyl-p-phenylenediamine(4-aminodiphenylamine).
Type:
Grant
Filed:
May 22, 2003
Date of Patent:
March 7, 2006
Assignee:
Applied Poleramic Inc.
Inventors:
Brian S. Hayes, Richard Moulton, Doyle Dixon, Leonid Vorobyev
Abstract: A flame-retardant curable resin composition which comprises (1) a polymerizable vinyl monomer having a glass transition temperature of its homopolymer of at most 0° C., (2) a polymerization initiator, (3) a reducing agent and (4) a flame retardant in an amount of from 25 to 75 parts by mass based on 100 parts by mass of the total of (1) the polymerizable vinyl monomer having a glass transition temperature of its homopolymer of at most 0° C., (2) the polymerization initiator and (3) the reducing agent.
Abstract: This invention relates generally to phenyl ether substituted triazines compounds and compositions containing same and their use to protect against degradation by environmental forces. A method for stabilizing a material by incorporating such triazines is also disclosed.
Type:
Grant
Filed:
November 9, 2001
Date of Patent:
February 15, 2005
Assignee:
Cytec Technology Corp.
Inventors:
Ram Baboo Gupta, Hargurpreet Singh, Russell C. Cappadona
Abstract: The present invention provides supported peroxides, and a method of forming supported peroxides. Supported peroxides according to the invention are solid particles that include an organic peroxide and a metallic soap. In accordance with the method of the invention, supported peroxides are preferably formed by dispersing a mixture that includes at least one peroxide and at least one C4 to C30 carboxylic acid into an aqueous solution that includes a compound that is capable of reacting with the C4 to C30 carboxylic acid to form a water soluble soap. Dispersing the mixture into the aqueous solution results in the formation of an emulsion. A polyvalent metal compound that is capable of reacting with the water soluble soap to form a water insoluble metallic soap is then added to the emulsion, which converts the water soluble soap into a water insoluble metallic soap that precipitates from the solution. The organic peroxide is entrained within the precipitate.
Abstract: A stabilizer mixture containing
(I) two different sterically hindered amine compounds, and
(II) at least one compound selected from the group consisting of an organic salt of Zn, an inorganic salt of Zn, Zn oxide, Zn hydroxide, an organic salt of Mg, an inorganic salt of Mg, Mg oxide and Mg hydroxide.
Abstract: The present invention provides a phthalate-free plasticizer for polymer resins. The phthalate-free plasticizer according to the invention includes a mixture of different triesters of glycerin, at least one of which meets the formula:
CH2(OOR1)CH(OOR2)CH2(OOR3)
wherein at least two of R1, R2, and R3 are different alkyl or aryl groups. Phthalate-free plasticizers according to the invention can be made by esterifying glycerin with a mixture of acids in the presence of a catalyst. Preferably, the mixture of acids includes at least two selected from the group consisting of alkyl acids and aryl acids, with each acid in the mixture containing up to about 11 carbon atoms, and more preferably from about 4 to about 9 carbon atoms each. The plasticizer according to the invention can be used to modify the properties of a wide variety of polymers including vinyl polymers, rubbers, polyurethanes, and acrylics, and has superb thermostability and low volatility.
Type:
Grant
Filed:
October 10, 2003
Date of Patent:
November 2, 2004
Assignee:
Ferro Corporation
Inventors:
Lei Zhou, George Schaefer, William W. Knickmeyer, David Paul
Abstract: An organic peroxide stabilizing composition comprises an organic peroxide and an organic peroxide stabilizing compound selected from one of the following general formulas (I) or (II):
Type:
Application
Filed:
April 25, 2003
Publication date:
October 28, 2004
Applicant:
CROMPTON CORPORATION
Inventors:
Lawrence A. Bock, Jeff Diffie, Peter Frenkel
Abstract: A reactive liquid crosslinking agent for use in the preparation of polymeric substances. The crosslinking agent comprises a substituted 1,3,5-triazine reacted with water, an acid alkyl sulfonate and/or phosphonate and a solidifying modifier containing an hydroxyl functional group to form a substituted 1,3,5-triazine hydrate. The reactive liquid polymer crosslinking agent has a solids content between 20-99% solids. The reactive liquid crosslinking agents (RLPC's) are useful as modifiers in the preparation of polymeric compounds which are suitable for one-component self-crosslinking adhesives, coatings and polymers used in optics, textiles, composites, casting and molding. RLPC systems containing from 1-30% RLPC provide fast single package thermosetting polymeric compounds with enhanced properties such as chemical, heat and abrasion resistance.
Abstract: An (meth)acryloyl group-modified ethylene-&agr;-olefin copolymer (A) which has (meth)acryloyl group as a the side-chain thereof, wherein the intrinsic viscosity [&eegr;] was 0.01 to 10 dl/g measured in decalin at a temperature of 135° C.; and a rubber composition which comprises said (meth)acryloyl group-modified ethylene-&agr;-olefin copolymer, a vulcanizing agent, and/or a crosslinking agent; in addition, a liquid curable rubber composition which comprises, component (A), reactive diluent (D), and if necessary, photopolymerization initiator (E).
Abstract: The present invention includes a molecular melt composition comprising an antioxidant and a coupling agent. The molecular melt is partially amorphous in nature. The invention also includes a method for making the molecular melt composition and a method for using the molecular melt to produce coupled polymers. The invention further includes a method for using an antioxidant to phlagmatize a coupling agent.
Type:
Grant
Filed:
May 4, 2001
Date of Patent:
August 17, 2004
Assignee:
Dow Global Technologies Inc.
Inventors:
Marlin E. Walters, Marius W. Sorenson, Malcolm F. Finlayson, Robin J. Lee, Clark H. Cummins
Abstract: The present invention provides supported peroxides, and a method of forming supported peroxides. Supported peroxides according to the invention are solid particles that include an organic peroxide, a metallic soap, and a polymer. In accordance with the method of the invention, supported peroxides are preferably formed by dispersing a mixture that includes at least one peroxide and at least one C4 to C30 carboxylic acid into an aqueous solution that includes a compound that is capable of reacting with the C4 to C30 carboxylic acid to form a water soluble soap. Dispersing the mixture into the aqueous solution results in the formation of an emulsion. Polymer is then added to the emulsion, and forms a polymer suspension. A polyvalent metal compound that is capable of reacting with the water soluble soap to form a water insoluble metallic soap is then added to the polymer suspension, which converts the water soluble soap into a water insoluble metallic soap that precipitates from the suspension.
Abstract: The present invention provides a phthalate-free plasticizer for polymer resins. The phthalate-free plasticizer according to the invention includes a mixture of different triesters of glycerin, at least one of which meets the formula:
CH2(OOR1)CH(OOR2)CH2(OOR3)
wherein at least two of R1, R2, and R3 are different alkyl or aryl groups. Phthalate-free plasticizers according to the invention can be made by esterifying glycerin with a mixture of acids in the presence of a catalyst. In the presently most preferred embodiment of the invention, the mixture of acids includes benzoic acid and butanoic acid. The plasticizer according to the invention can be used to modify the properties of a wide variety of polymers including vinyl polymers, rubbers, polyurethanes, and acrylics, and has superb thermostability and low volatility.
Abstract: A crosslinking agent for water-absorbing resins which comprises (A) at least one halohydrin compound selected between (A1) a first halohydrin compound having per molecule at least two halohydrin groups (D) represented by the general formula (I), wherein R1 represents hydrogen or alkyl and X represents chlorine or bromine and (A2) a second halohydrin compound having per molecule at least two halohydrin groups (D) represented by the formula (I) and having per molecule at least one ammonium group (M) represented by the general formula (II), wherein R2's each independently represents a C1-4 hydrocarbon group or benzyl.
Abstract: A polyol composition comprising a high concentration of ethylene oxide having a functionality of from about 2 to about 8, preferably 2; a polyisocyanurate composition having an isocyanate index of from about 180 to about 450 and comprising the reaction product of a polyisocyanate and the polyol composition; a rigid polyisocyanurate foam comprising the polyisocyanurate composition; and a process for making a polyisocyanurate foam which comprises reacting a polyisocyanate with the polyol composition in the presence of a trimerization catalyst.
Type:
Application
Filed:
October 15, 2002
Publication date:
April 15, 2004
Inventors:
Martijn M. Witteveen, Andrei K. Gantchev, Henri J.M. Gruenbauer, Ronald Van Den Bosch
Abstract: The present invention relates a reactive tertiary amine catalyst used in a phenolic urethane cold box process. Through the use of a reactive tertiary amine, the problems associated with vaporous amine waste streams can be eliminated. Some typical reactive tertiary amine catalysts that are useful in the present invention include 1-dimethylamino-2-propanol (DMA-2P), monoethanolamine and dimethylaminopropylamine (DMAPA).
Type:
Application
Filed:
August 7, 2003
Publication date:
March 18, 2004
Inventors:
Michael David Gernon, Christine Marie Trumpfheller, Bobby Allen Picker
Abstract: To sufficiently stabilize a hydroxyalkyl (meth)acrylate in spite of its easily polymerizable property, a hydroxyalkyl saturated-carboxylate and/or alkylene glycol as well as a phenol compound is added thereto.
Abstract: The invention relates to composition for crosslinking phenol-formaldehyde, phenol-resorcinol-formaldehyde, resorcinol-formaldehyde, tannin-formaldehyde, and similar thermosetting resins with a reactant nitroparaffin derivative, a pH adjuster, a viscosity controller, a polymerization shortstop, and water for use in Reinforced Thermal Plastic (RTP) Composite applications.
Abstract: The present invention relates to the use of cycloaliphatic diamines as cosolvents for hydrophobic amines in aqueous solution. The cycloaliphatic diamines of the present invention have a formula:
where n is 1 or 2, each R is independently selected from a group consisting of: hydrogen, a 1 to 6 carbon aliphatic, and a 0 to 6 carbon containing amine, wherein each R is chosen such that the cosolvent amine comprises at least two amine groups; and a quantity of water to maintain said solution as a homogeneous phase. The cosolvent diamines have particular utility in the formation of water based epoxy resin curing agents. Superior water miscibility is achieved for hydrophobic amines through the use of cycloaliphatic amines as compared to conventional cosolvents.
Abstract: A water slurry process is used to prepare a prepreg and to manufacture articles from macrocyclic polyester oligomers. In one embodiment, a process for preparing a water suspension of macrocyclic polyester oligomers includes the steps of contacting a macrocyclic polyester oligomer and a polymerization catalyst with water and a surfactant, and mixing the macrocyclic polyester oligomer and polymerization catalyst with water and the surfactant thereby forming a suspension. In another embodiment, a process for impregnating macrocyclic polyester oligomers for polymerization includes the steps of providing a suspension of a macrocyclic polyester oligomer and a polymerization catalyst in water, applying the suspension to a base material, drying to remove water from the suspension, and pressing the dried suspension to a desired form. In yet another embodiment, a composition of macrocyclic polyester oligomer includes a macrocyclic polyester oligomer, a polymerization catalyst, and water.
Abstract: A process is disclosed for the separation of a mixture of HF and CF3CClFCF3. The process involves placing the mixture in a separation zone at a temperature of from about −30° C. to about 100° C. and at a pressure sufficient to maintain the mixture in the liquid phase, whereby an organic-enriched phase comprising less than 50 mole percent HF is formed as the bottom layer and an HF-enriched phase comprising more than 90 mole percent HF is formed as the top layer. The organic-enriched phase can be withdrawn from the bottom of the separation zone and subjected to distillation in a distillation column to recover essentially pure CF3CClFCF3. The distillate comprising HF and CF3CClFCF3 can be removed from the top of the distillation column while essentially pure CF3CClFCF3 can be recovered from the bottom of the distillation column. The HF-enriched phase can be withdrawn from the top of the separation zone and subjected to distillation in a distillation column.
Type:
Grant
Filed:
April 1, 1999
Date of Patent:
January 13, 2004
Assignee:
E. I. du Pont de Nemours and Company
Inventors:
Ralph Newton Miller, V. N. Mallikarjuna Rao, Steven H. Swearingen
Abstract: The present invention provides a phthalate-free plasticizer for polymer resins. The phthalate-free plasticizer according to the invention includes a mixture of different triesters of glycerin, at least one of which meets the formula:
CH2(OOR1)CH(OOR2)CH2(OOR3)
wherein at least two of R1, R2, and R3 are different alkyl or aryl groups. Phthalate-free plasticizers according to the invention can be made by esterifying glycerin with a mixture of acids in the presence of a catalyst. Preferably, the mixture of acids includes at least two selected from the group consisting of alkyl acids and aryl acids, with each acid in the mixture containing up to about 11 carbon atoms, and more preferably from about 4 to about 9 carbon atoms each. The plasticizer according to the invention can be used to modify the properties of a wide variety of polymers including vinyl polymers, rubbers, polyurethanes, and acrylics, and has superb thermostability and low volatility.
Type:
Grant
Filed:
December 20, 2001
Date of Patent:
November 25, 2003
Assignee:
Ferro Corporation
Inventors:
Lei Zhou, George Schaefer, William W. Knickmeyer, David Paul
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:
Grant
Filed:
March 10, 2003
Date of Patent:
October 28, 2003
Assignee:
Bayer Aktiengesellschaft
Inventors:
Torsten Hagen, Friedhelm Kämper, Daniel Koch, Rudolf Uchdorf, Stefan Wershofen
Abstract: A reactive liquid crosslinking agent for use in the preparation of polymeric substances. The crosslinking agent comprises a substituted 1,3,5 Triazine reacted with water, an acid alkyl sulfonate and/or phosphonate and a solidifying modifier containing an hydroxyl functional group. The reactive liquid polymer crosslinking agent has a solids content between 20-99% solids. The reactive liquid crosslinking agents (RLPC's) are useful as modifiers in the preparation of polymeric compounds which are suitable for one-component self-crosslinking adhesives, coatings and polymers used in optics, textiles, composites, casting and molding. RLPC systems containing from 1-30% RLPC provide fast single package thermosetting polymeric compounds with enhanced properties such as chemical, heat and abrasion resistance.
Abstract: Light cured nail coatings that are applied to natural nails and/or artificial nail-tips for cosmetic purposes. An optional bond-enhancing compound can be used to strengthen the bond between the light curable coatings and the natural nail. Also, finishing compounds may be used to clean the surface of the uv curable coatings resulting in a high-gloss shine. The methods of applying uv-radiation curable nail coatings, bond-enhancing compounds, and finishing compounds to artificial nail-tips and natural nail are also discussed.
Abstract: Benzotriazole adducts contain a benzotriazole segment and a segment with a curable and polymerizable functionality, or an adhesion promoting functionality, particularly suitable for use on metal substrates or in adhesive, sealant or coating compositions for use in proximity to metal substrates.
Abstract: The present invention is directed to a an accelerator-gel additive used to deliver an accelerator such as sulfur, into a system for the production of polymer modified asphalt, vulcanized rubber or similar system. Unlike conventional methods of delivering accelerator into the system, the accelerator-gel additive suspends the accelerator in a gel system thereby preventing the sedimentation of the accelerator during processing. As a result, the polymer and asphalt are processed at lower temperature reducing the production of toxic and flammable gases such as hydrogen sulfide.
Type:
Grant
Filed:
March 14, 2000
Date of Patent:
May 27, 2003
Assignee:
Ergon, Inc.
Inventors:
Gaylon L. Baumgardner, Martin R. Burrow, John Dumas, Andrew Menapace, James Smith
Abstract: The present invention is directed to a an accelerator-gel additive used to deliver an accelerator such as sulfur, into a system for the production of polymer modified asphalt, vulcanized rubber or similar system. Unlike conventional methods of delivering accelerator into the system, the accelerator-gel additive suspends the accelerator in a gel system thereby preventing the sedimentation of the accelerator during processing. As a result, the polymer and asphalt are processed at lower temperature reducing the production of toxic and flammable gases such as hydrogen sulfide.
Type:
Grant
Filed:
August 9, 2002
Date of Patent:
May 27, 2003
Assignee:
Ergon, Incorporated
Inventors:
Gaylon L. Baumgardner, Martin R. Burrow, John Dumas, Andrew Menapace, James Smith
Abstract: Bicyclic nucleator compounds that provide highly versatile nucleation benefits for different polyolefins are provided. Such nucleator compounds provide very high peak crystallization temperatures and significantly reduced crystallization cycle time for certain thermoplastic formulations with or without the presence of other calcium stearate and/or peroxide components within the same type of formulation. Furthermore, such inventive nucleator compounds exhibits very little if any fugitivity from such thermoplastic formulations thereby providing excellent processing characteristics as well as excellent nucleation capabilities for a variety of different thermoplastic resins, independent of the presence of different, potentially necessary, additives (such as calcium stearate). Thermoplastic compositions as well as thermoplastic additive packages comprising such inventive nucleator compounds are also contemplated within this invention.
Abstract: Polymerization inhibitor compositions for the emulsion polymerization of chloroprene comprise a 4-(lower alkoxy)phenol and a hindered bis(phenol)methane in a molar ratio in the range of 0.5/1-2.5/1. Discoloration resistant polychloroprene rubbers are produced.
Abstract: Certain thermoplastic additives (combinations of clarifying and nucleating compounds) that induce simultaneously low clarity and high nucleation efficacy are provided. Such additives include combinations of certain bicyclic salts (which by themselves induce very high nucleation efficacy) and thermoplastic clarifying agents, including certain dibenzylidene sorbitol acetals and derivatives (hereinafter collectively referred to as “DBSs”)(which alone provide very low haze measurements and thus highly desirable clarity characteristics). In comparison, other types of standard thermoplastic nucleators, such as sodium benzoate and sodium 2,2′-methylene-bis-(4,6-di-tert-butylphenyl) phosphate provide relatively high peak crystallization temperatures, but do not combine synergistically with clarifiers, such as DBSs, to provide the same results as for the inventive combination of bicyclic salts and DBSs.
Abstract: The invention relates to aqueous and/or water-dilutable polyisocyanate crosslinkers blocked with diisopropylamine, to their preparation and use in one-component baking lacquers, for example as fillers in automotive lacquering.
Type:
Application
Filed:
July 10, 2002
Publication date:
March 6, 2003
Inventors:
Eberhard Konig, Jan Mazanek, Heino Muller, Joachim Petzoldt
Abstract: Disclosed herein is a composition comprising an aromatic diamine that is a solid at room temperature and a stabilizing quantity of a hindered amine light stabilizer and its use as a polyurethane curing agent.
Abstract: Certain thermoplastic additives that induce simultaneous low clarity and high nucleation efficacy are provided. Such additives include combinations of certain bicyclic salts (which by themselves induce very high nucleation efficacy) and certain benzylidene sorbitol acetals and derivatives (hereinafter collectively referred to as “DBSs”)(which alone provide very low haze measurements and thus highly desirable clarity characteristics). In comparison, other types of standard thermoplastic nucleators, such as sodium benzoate and sodium 2,2′-methylene-bis-(4,6-di-tert-butylphenyl)phosphate provide relatively high peak crystallization temperatures, but do not combine synergistically with DBSs to provide the same results as for the inventive combination of bicyclic salts and DBSs.
Abstract: A method and product which provides a solid, non-powdered homogeneous form to liquid and low melting point solid compounds which facilitates stability, storage, dispersability and handling and which may be added directly to formulations requiring the liquid compound or low melting point solid compound. The liquid or low melting point solid ingredient is combined with a binder which is comprised of at least a wax and thermoplastic polymer. During the method of forming the product, both the binder and the liquid compound (or low melting point solid compound) pass through a liquid phase during which they are mixed. The product is then formed and cooled.
Type:
Grant
Filed:
November 21, 2000
Date of Patent:
February 4, 2003
Assignee:
Rhein Chemie Corporation
Inventors:
Richard D. Cortelezzi, Clifford C. Martin
Abstract: A method of recovering a decomposition product from a polyurethane, the method comprising the steps of thermally decomposing a polyurethane into a liquid containing a polyol and a urea compound which is soluble in the polyol, and solids containing a urea compound which is insoluble in the liquid in the presence of a polyamine compound at a temperature of 120 to 250° C.; removing the solids; hydrolyzing the residue with water retained at a high temperature of 200 to 320° C. and a high pressure; and recovering the resulting polyamine and/or polyol.
Abstract: Water dilutable amine curing agents for aqueous epoxy resin dispersions, comprising a combination of an epoxide-amine adduct with an emulsifier, the epoxide-amine adduct being obtainable by reacting a polyepoxide with a reaction product of an amine and an epoxide component or an amine and subsequent reaction with an epoxide component, the amount of amine being chosen such that the number of nitrogen-attached hydrogen atoms the number of epoxide groups by a factor of from 2 to 10, and the emulsifier being obtainable by reacting diepoxides or polyepoxides with compounds that are at least difunctional with respect to epoxides, optionally with compounds D that are monofunctional with respect to epoxides, and with amines G which contain at least one tertiary and at least one primary or at least two secondary amino group(s).
Type:
Application
Filed:
May 6, 2002
Publication date:
January 2, 2003
Inventors:
Martin Gerlitz, Thomas Fischer, Andreas Gollner, Manfred Gogg, Elfriede Prucher, Heike Schneeberger, Josef Wenzl
Abstract: Light cured nail coatings that are applied to natural nails and/or artificial nail-tips for cosmetic purposes. An optional bond-enhancing compound can be used to strengthen the bond between the light curable coatings and the natural nail. Also, finishing compounds may be used to clean the surface of the uv curable coatings resulting in a high-gloss shine. The methods of applying uv-radiation curable nail coatings, bond-enhancing compounds, and finishing compounds to artificial nail-tips and natural nail are also discussed.
Abstract: The present invention relates to a composition comprising cyclic ketone peroxide and a phlegmatizer having a 95% boil-off point falling in the range of 220-265° C., most preferably 235-250° C. A preferred peroxide is cyclic methyl ethyl ketone peroxide. Preferably, a single phlegmatizer is used. Preferred phlegmatizers are Isopar® M and Soltrol® 170. The invention also pertains to the use of compositions according to this invention in (co)polymerization and polymer modification processes.
Type:
Grant
Filed:
May 29, 2001
Date of Patent:
March 19, 2002
Assignee:
Akzo Nobel N.V.
Inventors:
Pieter Schuurman, Bernhard DeVries, Willem Koelewijn, Johannes Jacobus De Groot
Abstract: A method of achieving a novel superior dispersion of insoluble sulfur comprises mixing polysulfur while it is in the rubbery state with a diluent, such as rubber, to obtain a novel uniform dispersion of the sulfur in the diluent.
Type:
Grant
Filed:
July 19, 2001
Date of Patent:
March 19, 2002
Assignees:
Saynad Corporation, The Brands Family Illinois Limited