Patents Represented by Attorney, Agent or Law Firm Tiffany A. Levato
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Patent number: 6831113Abstract: A method for making a one-component epoxy resin system comprises reacting (A) an epoxy resin and (B) an amine solidifying system present in insufficient quantities to cause gelation in the presence of a latent hardener (C) and an expanding agent (E), each of which remains unreacted under the reaction conditions for (A) and (B), to yield a product with a Kofler Heat Bank melting point of less than 55° C. and a melting point stability of at least six months at normal workshop temperatures.Type: GrantFiled: November 13, 2001Date of Patent: December 14, 2004Assignee: Huntsman Advanced Materials Americas Inc.Inventor: Peter Drummond Boys White
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Patent number: 6827810Abstract: A process for surface pretreatment, including providing a clean metal surface which is aluminum or an aluminum alloy; applying a composition including an organosilane to the clean metal surface to form a coated surface; and exposing the coated surface to a laser which produces an elevated temperature on the coated surface.Type: GrantFiled: December 5, 2001Date of Patent: December 7, 2004Assignee: Huntsman Advanced Materials Americas Inc.Inventor: Jochem Sauer
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Patent number: 6797749Abstract: The invention provides a powder coating composition in which powder particles are an agglomerate of individual particulate components fused or bonded together into composite particles. Maximizing the amount of larger-sized uncolored component(s) gives cost advantages, and the invention allows a rapid and flexible manufacture of a range of colored powder coating compositions.Type: GrantFiled: December 11, 2001Date of Patent: September 28, 2004Assignee: International Coatings LimitedInventor: Andrew George Cordiner
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Patent number: 6784221Abstract: A carboxyl group-containing epoxy acrylate is prepared by the reaction of an epoxy resin advanced with an aromatic biphenol compound which is reacted with a polycarboxylic acid anhydride in the presence or absence of a catalyst and a polymerization inhibitor at an elevated temperature. The carboxyl group-containing epoxy acrylate is mixed with a photoinitiator to obtain a photoresist formulation.Type: GrantFiled: August 17, 2001Date of Patent: August 31, 2004Assignee: Huntsman Advanced Materials Americas Inc.Inventors: Martin Roth, Roger Salvin, Kurt Meier, Bernhard Sailer, Rolf Wiesendanger
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Patent number: 6783809Abstract: A photosensitive composition of (a) a compound of formula (Ia) or (Ib) and (b) a bifunctional acrylate or methacrylate.Type: GrantFiled: September 17, 2001Date of Patent: August 31, 2004Assignee: Huntsman Advanced Materials Americas Inc.Inventors: Bettina Steinmann, Adrian Schulthess, Max Hunziker
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Patent number: 6774250Abstract: The invention relates to the process for the preparation of liquid reaction products of cycloaliphatic epoxides with mono- or multifunctional hydroxy compounds. The process comprises reacting a polyfunctional cycloaliphatic epoxy resin with a mono- or multifunctional hydroxy compound in the presence of a heterogeneous surface-active catalyst. The invention also relates to curable compositions containing the product obtained by the process.Type: GrantFiled: August 2, 2002Date of Patent: August 10, 2004Assignee: Huntsman Advanced Materials Americas Inc.Inventors: Kevin B. Hatton, Pauline G. Barker, Claus W. Rabener, Christiane Rabener
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Patent number: 6764616Abstract: A composition comprising (a) an epoxy resin, (b) an OH-terminated polysiloxane, (c) a cyclic polysiloxane and (d) a non-ionic, fluoroaliphatic surface-active reagent, exhibits excellent hydrophobicity properties and can be used as electrical insulating material.Type: GrantFiled: June 7, 2001Date of Patent: July 20, 2004Assignee: Huntsman Advanced Materials Americas Inc.Inventors: Christian Beisele, Thomas Kainmüller, Qian Tang
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Patent number: 6759506Abstract: Compounds of formula Ia or Ib wherein A is an (n+1)-valent aliphatic, cycloaliphatic, araliphatic or aromatic radical and n is an integer from 0 to 5, E is an (m+1)-valent aliphatic, cycloaliphatic, araliphatic or aromatic radical and m is an integer from 0 to 3, X is —O—, —COO— or —CHR4—, R1 and R2 are, each independently of the other, hydrogen or methyl, R3 is hydrogen, and R5 is a monovalent aliphatic, cycloaliphatic, araliphatic or aromatic radical, are highly reactive curing agents for epoxy resins and yield cured products having improved resistance to chemicals.Type: GrantFiled: January 25, 2002Date of Patent: July 6, 2004Assignee: Huntsman Advanced Materials Americas Inc.Inventors: Walter Fischer, Claudio A Gabutti, Isabelle Frischinger, Rolf Wiesendanger
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Patent number: 6753040Abstract: A curable composition comprising a) an epoxy resin having on average more than one epoxide group per molecule and b1) an alkyldipropylenetrimine of general formula (I) and/or b2) an adduct of an alkyldipropylenetrimine of general formula (I) with b3) an epoxide compound having on average at least one epoxide group per molecule in which R is hydrocarbon radical 8 to 22 carbon atoms, and the use of this composition for mineral and metallic substrates.Type: GrantFiled: March 21, 2002Date of Patent: June 22, 2004Assignee: Vantico GmbH & Co. KGInventors: Wolfgang Scherzer, Jörg Volle
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Patent number: 6747101Abstract: Epoxy acrylates and carboxyl group-containing epoxy acrylates of formulae III and IV of the claims that are relatively polymolecular and are chemically crosslinkable can be used in photoresist formulations with the additional use of highly polymerized polymer binders. Such resist formulations are used in particular in the field of printed circuit boards and printing plates, are applicable from aqueous medium, are almost tack-free and have very good edge coverage, especially on conductors.Type: GrantFiled: June 28, 1994Date of Patent: June 8, 2004Assignee: Huntsman Advanced Materials Americas Inc.Inventors: Martin Roth, Roger Salvin, Kurt Meier, Bernhard Sailer, Rolf Wiesendanger
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Patent number: 6686122Abstract: Process for the production of a resist coating, in which (a) a substrate is coated with a resist composition which comprises at least one component which absorbs radiation in the near infrared region with warming of the coating; and (b) the resist composition or a composition derived therefrom and obtained during the process is subjected at least once during the process to thermal treatment with the aid of radiation in the near infrared region.Type: GrantFiled: June 21, 2001Date of Patent: February 3, 2004Assignee: Vantico Inc.Inventor: Frans Setiabudi
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Patent number: 6683122Abstract: A filler mixture comprising an organophilic layer silicate obtainable by treatment of a natural or synthetic layer silicate with a swelling agent selected from sulfonium, phosphonium and ammonium compounds (salts of melamine compounds and cyclic amidine compounds being excluded as ammonium compounds) and a mineral filler different therefrom, yields, in combination with thermosetting resins, nanocomposites having improved mechanical properties.Type: GrantFiled: January 14, 2002Date of Patent: January 27, 2004Assignee: Vantico A&T US Inc.Inventors: Carsten Zilg, Rolf Mülhaupt, Jürgen Finter
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Patent number: 6649311Abstract: A process is provided for producing a polymeric layer having a desired image thereon or a three dimensional article comprising a number of such layers in which a layer of a liquid photocurable composition which comprises photo colorable particles is cured by light and selected areas thereof are irradiated with light of a different dose, thereby forming the desired image which composition comprises particles dispersed in it which are micro-capsules containing a photosensitive color changing composition within a barrier layer which is substantially impermeable to the components of the color changing composition or are solid particles comprising an immobilized photosensitive color changing composition. The process permits the use of the same initiating mechanism to cure the resin and to change the color of the particles.Type: GrantFiled: May 2, 2001Date of Patent: November 18, 2003Assignee: Vantico LimitedInventors: Dianne Beth Shirley, Ian Malcolm Shirley, Ajay Haridas Popat, Martin Russell Edwards, Kevin Thomas McAloon, Herbert Benson Scher