Patents Represented by Attorney Michael J. Kelly
  • Patent number: 6153672
    Abstract: A process for preparing a tris-lactam crosslinking agent, tris-pyrrolidonyl triazine, from N,N',N"-tris(4-chlorobutyryl)melamine by treatment of the chlorobutyryl derivative with a base such as sodium or potassium carbonate to effect intramolecular cyclization to the tris-lactam. A curable composition comprised of tris-pyrrolidonyl triazine as the crosslinking agent and a hydroxyfunctional or aminofunctional material as a resin. Thick films with no pinholes are prepared from the curable compositions using powder coating techniques.
    Type: Grant
    Filed: January 7, 1993
    Date of Patent: November 28, 2000
    Assignee: Cytec Technology Corp.
    Inventors: Ram B. Gupta, Robert G. Lees
  • Patent number: 6130297
    Abstract: A crosslinker composition based on a combination of 1,3,5-tris-(2-carboxyethyl)isocyanurate and a dicarboxylic acid crosslinking agent is provided. Also provided is a curable epoxy composition employing, as the crosslinker component, a combination of 1,3,5-tris-(2-carboxyethyl)isocyanurate and a dicarboxylic acid crosslinking agent, which curable composition finds use, for example, in coating applications.
    Type: Grant
    Filed: December 29, 1998
    Date of Patent: October 10, 2000
    Assignee: Cytec Technology Corp.
    Inventor: Subban Ramesh
  • Patent number: 6107441
    Abstract: Described is a liquid, partially alkoxymethylated melamine crosslinker composition having from about 2.6 to about 4.6 moles of combined formaldehyde per mole of melamine, from about 1.4 to about 4.4 moles of alkyl per mole of melamine, from about 1.3 to about 3.4 moles of NH per mole of melamine, a free formaldehyde level of less than about 0.5 weight percent based on 100 percent solids, and an N-methylol level of less than about 6.0 weight percent; processes for its preparation; a low formaldehyde emitting curable composition containing the crosslinker; as well as a method of coating a substrate and substrates so coated.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: August 22, 2000
    Assignee: Cytec Technology Corp.
    Inventors: John H. Bright, Barry A. Lawless, Robert G. Lees, Lon-Tang Wilson Lin, Jeno G. Szita
  • Patent number: 6107369
    Abstract: A process for preparing a tris-lactam crosslinking agent, tris-pyrrolidonyl triazine, from N,N',N"-tris(4-chlorobutyryl)melamine by treatment of the chlorobutyryl derivative with a base such as sodium or potassium carbonate to effect intramolecular cyclization to the tris-lactam. A curable composition comprised of tris-pyrrolidonyl triazine as the crosslinking agent and a hydroxyfunctional or aminofunctinoal material as a resin. Thick films with no pinholes are prepared from the curable compositions using powder coating techniques.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: August 22, 2000
    Assignee: Cytec Technology Corp.
    Inventors: R. B. Gupta, Robert G. Lees
  • Patent number: 6096886
    Abstract: Novel morpholino end-capped polyamino-1,3,5-triazines, methods for their use as light stabilizers for materials which are subject to degradation (for example, by actinic radiation), stabilizer compositions based on these morpholino end-capped polyamino-1,3,5-triazines and methods for their synthesis are herein described.
    Type: Grant
    Filed: November 3, 1998
    Date of Patent: August 1, 2000
    Assignee: Cytec Technology Corp.
    Inventor: Martin L. Cohen
  • Patent number: 6045906
    Abstract: The instant invention involves a process used in preparing fibrous tows which may be formed into polymeric plastic composites. The process involves the steps of (a) forming a carbon fiber tow; (b) forming a thermoplastic polymeric fiber tow; (c) intermixing the two tows; and (d) withdrawing the intermixed tow for further use.
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: April 4, 2000
    Assignee: Cytec Technology Corp.
    Inventors: Paul E. McMahon, Tai-Shung Chung, Lincoln Ying
  • Patent number: 6015485
    Abstract: Provided are high activity catalysts based upon gamma alumina containing substrates impregnated with one or more catalytically active metals, which catalysts in addition contain a nanocrystalline phase of alumina of a crystallite size at the surface of less than 25 .ANG.. Also provided are processes for preparing such high activity catalysts and various uses thereof.
    Type: Grant
    Filed: September 25, 1995
    Date of Patent: January 18, 2000
    Assignee: Cytec Technology Corporation
    Inventors: Peter Joseph Shukis, James Donald Carruthers, Vincent Joseph Lostaglio
  • Patent number: 6013797
    Abstract: At least bis-imido 1,3,5-triazines and processes of preparing the same are disclosed. Also disclosed are prepolymers having at least bis-imido functionality and curable compositions comprising at least bis-imido 1,3,5-triazines or prepolymers thereof in combination with active hydrogen and/or epoxy functional materials. The at least bis-imido 1,3,5-triazines and prepolymers may be advantageously employed as crosslinking agents which crosslink by a ring opening reaction that eliminates the release of volatile organic compounds.
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: January 11, 2000
    Assignee: Cytec Technology Corp.
    Inventors: Lon-Tang Wilson Lin, Robert G. Lees, William F. Jacobs, III, Subban Ramesh
  • Patent number: 5981074
    Abstract: A non-yellowing one-package polyurethane coating composition containing an oxime-blocked polyisocyanate, an isocyanate-reactive material, and an imino-functional amino resin is provided. The coating composition is applied onto an acid-cured base coat and cured. The clear coat produced in this manner has good yellowness resistance and intercoat adhesion.Articles such as multi-layered coated substrates are prepared using the coating method of this invention. The coated substrates typically contain an acid-cured first layer and an adjacent layer derived from a curable composition containing an oxime-blocked polyisocyanate, an isocyanate-reactive material, and an imino-functional amino resin.
    Type: Grant
    Filed: May 24, 1994
    Date of Patent: November 9, 1999
    Assignee: Cytec Technology Corp.
    Inventors: Kuang Jong Wu, Feeha Lee
  • Patent number: 5955566
    Abstract: Thermosetting polymers with high temperature capability for composite and adhesive applications are disclosed. Inhibitors for improving pot life, gel time and storage stability are disclosed. These polymers are ideally suited for adhesives and RTM, resin film infusion, and prepreg methods to make polymer matrix, fiber reinforced composite parts.
    Type: Grant
    Filed: November 13, 1996
    Date of Patent: September 21, 1999
    Assignee: Cytec Technology Corporation
    Inventors: Jean Lee, Jack Douglas Boyd, Albert Kuo
  • Patent number: 5932635
    Abstract: Fiber-reinforced prepregs with superior tack containing thermosetting resin systems containing particulate, elastomers having a Tg of 25.degree. C. and below, as well as the composites prepared therefrom are disclosed.
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: August 3, 1999
    Assignee: Cytec Technology Corp.
    Inventors: Jean Lee, Albert Kuo, Jack Douglas Boyd, Daniel Chang
  • Patent number: 5925285
    Abstract: A novel crosslinker composition based on a combination of 1,3,5-tris-(2-carboxyethyl)isocyanurate and a dicarboxylic acid crosslinking agent is provided. Also provided is a curable epoxy composition employing, as the crosslinker component, a combination of 1,3,5-tris-(2-carboxyethyl)isocyanurate and a dicarboxylic acid crosslinking agent, which curable composition finds use, for example, in coating applications. When cured, these coatings provide hard, durable and resistant films of low gloss.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: July 20, 1999
    Assignee: Cytec Technology Corp.
    Inventor: Subban Ramesh
  • Patent number: 5871839
    Abstract: Galvanic degradation under salt spray or salt water conditions in hybrid structures containing a corrosible metal and a conductive fiber reinforced polymer matrix composite is reduced through the addition to the polymer matrix of the composite of an effective amount of an inorganic corrosion/degradation inhibitor.
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: February 16, 1999
    Assignee: CYTEC Technology Corporation
    Inventors: Jack D. Boyd, Lawrence C. Hopper
  • Patent number: 5817709
    Abstract: Sulfonimide cure catalysts are used with aminoplast crosslinking agents and resins capable of reacting with aminoplast crosslinking agents to prepare heat curable compositions capable of crosslinking to form coatings and articles. Liquid or solid curable compositions may be prepared. Solid sulfonimide catalysts used in combination with solid glycoluril type crosslinking agents are well suited for powder coating systems containing hydroxy- and carboxy-functional resins.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: October 6, 1998
    Assignee: Cytec Technology Corp.
    Inventors: Jeno G. Szita, Subban Ramesh, William Jacobs, III, John Colin Brogan
  • Patent number: 5795499
    Abstract: Polymers are stabilized against degradation by the addition of a liquid composition comprising an organic solvent and at least 40% by weight of a triaryl triazine of the formula (I): ##STR1## wherein X, Y, and Z are each the same or different aromatic carbocyclic radicals, and at least one of X, Y, and Z is substituted by a hydroxy group ortho to the point of attachment to the triazine ring, and at least one of R1 to R9 is an alkoxy radical of the formula, --O-(mixed alkyl) substituted at a point para to the point of attachment to the triazine ring, and the remainder of R1 to R9 are selected from the group consisting of hydrogen, hydroxy, alkyl, alkoxy, sulfonic, carboxy, halo, haloalkyl, and acylamino; with the proviso that --O-(mixed alkyl) is an alkoxy radical formed from an mixture of isomeric C.sub.6 to C.sub.12 alkyl halides containing at least 10% each of at least three different isomers.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: August 18, 1998
    Assignee: Cytec Technology Corp.
    Inventor: Paul Sheldon Waterman
  • Patent number: 5786477
    Abstract: Polymers are stabilized against degradation by the addition of a liquid composition comprising an organic solvent and at least 40% by weight of a triaryl triazine of the formula (I): ##STR1## wherein X, Y, and Z are each the same or different aromatic carbocyclic radicals, and at least one of X, Y, and Z is substituted by a hydroxy group ortho to the point of attachment to the triazine ring, and at least one of R1 to R9 is an alkoxy radical of the formula, --O--(mixed alkyl) substituted at a point para to the point of attachment to the triazine ring, and the remainder of R1 to R9 are selected from the group consisting of hydrogen, hydroxy, alkyl, alkoxy, sulfonic, carboxy, halo, haloalkyl, and acylamino; with the proviso that --O--(mixed alkyl) is an alkoxy radical formed from an mixture of isomeric C.sub.6 to C.sub.12 alkyl halides containing at least 10% each of at least three different isomers.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: July 28, 1998
    Assignee: Cytec Technology Corp.
    Inventor: Paul Sheldon Waterman
  • Patent number: 5760228
    Abstract: Provided are hydroxy aryl triazine ultraviolet absorbers of the general formula ##STR1## wherein R.sup.19, R.sup.23 and R.sup.25 are independently selected from the group consisting hydrogen, hydroxy, alkyl of 1 to 12 carbon atoms, alkoxy of 1 to 12 carbon atoms, sulfonic, halo, carboxy, haloalkyl and acrylamino;R.sup.20, R.sup.21, R.sup.22 and R.sup.24 are independently selected from the group consisting hydrogen, alkyl of 1 to 12 carbon atoms, alkoxy of 1 to 12 carbon atoms, sulfonic, halo, carboxy, haloalkyl and acrylamino; andthe R moiety of the OR group is a linear, branched aliphatic or cycloaliphatic alkyl moiety containing 6 to 12 carbon atoms and is:(1) substituted by one or more hydroxy groups, or(2) substituted by one or more alkoxy groups of 1 to 12 carbon atoms, the so-substituted moiety being further substituted by one or more hydroxy groups.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 2, 1998
    Assignee: Cytec Technology Corp.
    Inventor: Paul Sheldon Waterman
  • Patent number: 5759700
    Abstract: Polymers are stabilized against degradation by the addition of a liquid composition comprising an organic solvent and at least 40% by weight of a triaryl triazine of the formula (I): ##STR1## wherein X, Y, and Z are each the same or different aromatic carbocyclic radicals, and at least one of X, Y, and Z is substituted by a hydroxy group ortho to the point of attachment to the triazine ring, and at least one of R1 to R9 is an alkoxy radical of the formula, --O--(mixed alkyl) substituted at a point para to the point of attachment to the triazine ring, and the remainder of R1 to R9 are selected from the group consisting of hydrogen, hydroxy, alkyl, alkoxy, sulfonic, carboxy, halo, haloalkyl, and acylamino; with the proviso that --O--(mixed alkyl) is an alkoxy radical formed from an mixture of isomeric C.sub.6 to C.sub.12 alkyl halides containing at least 10% each of at least three different isomers.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: June 2, 1998
    Assignee: Cytec Technology Corp.
    Inventor: Paul Sheldon Waterman
  • Patent number: 5747615
    Abstract: Heat-curable resin systems containing at least one liquid monomer and one solid component, and which have superior tack and drape, may be prepared by slurry mixing a slurry compatible solid into at least one liquid monomer such that the finished resin system contains the solid as a discontinuous phase having a particle size of less than about 20 .mu.m.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: May 5, 1998
    Assignee: Cytec Technology Corp.
    Inventor: Linas Norman Repecka
  • Patent number: 5726254
    Abstract: An acid cured coating composition containing a hydroxyfunctional acrylic or polyester resin and a 1,3,5-triazine-2,4,6-tris-carbamate. Also provided is an acid cured coating composition containing a hydroxyfunctional acrylic or polyester resin, a crosslinking agent such as a melamine-formaldehyde or a related aminoresin, and a co-crosslinking agent derived from a triazine tris-carbamate such as 2,4,6-tris-(butoxycarbonylamino)-1,3,5-triazine. Also provided is an improved method of coating using the above coating compositions. The coating compositions described in this invention have lower cure temperatures, lower formaldehyde emissions during cure, and produce films and objects which have superior environmental etch resistance than the conventional melamine-formaldehyde coatings which do not have a triazine tris-carbamate co-crosslinker.
    Type: Grant
    Filed: January 8, 1997
    Date of Patent: March 10, 1998
    Assignee: Cytec Technology Corp.
    Inventors: Kuang-Jong Wu, Doris C. O'Toole