Patents Represented by Attorney, Agent or Law Firm John Daniel Wood
  • Patent number: 6303672
    Abstract: A self-dispersing curable epoxy composition is prepared upon contacting an epoxy resin with a polyoxyalkylenemonoamine having a molecular weight of from about 3,000 to about 15,000 in a ratio of about 0.001 to 0.060 reactive equivalents of polyoxyalkylenemonoamine to about 1.0 reactive equivalents of epoxy resin. The self-dispersing curable epoxy resin forms an aqueous dispersion upon mixing with water. When cured, the dispersion is useful as a coating composition.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 16, 2001
    Assignee: Henkel Corporation
    Inventors: John G. Papalos, Shailesh Shah, Reuben H. Grinstein, Joseph L. Mulvey, Brian G. Jewell
  • Patent number: 6300306
    Abstract: A water-soluble or water-dispersible copolymer comprising: at least one polyoxyalkylene (POA) unit; and at least one sulfonated polyamide (PAS) unit; the quantity of SO3M functions, expressed as the mass of SO3− function, in said (PAS) unit or units is such that it represents at least 0.1% of the total mass of said copolymer; the total (POA) units/total (PAS) units mass ratio is 95/5 to 30/70/ the number of amine functions —NH2 present in said copolymer is at most 80 milliequivalents per kilogram of copolymer; the number of carboxyl functions —COOH present in said copolymer is at least 80 milliequivalents, preferably at least 100 milliequivalents per kilogram of copolymers.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: October 9, 2001
    Assignee: Rhodia Chimie
    Inventors: Simon Firkins, Marie-Eve Perier, Sandrine Rochat, Louis Vovelle, Gladys Saliba Gabriel
  • Patent number: 6294596
    Abstract: A self-dispersing curable epoxy composition is prepared upon contacting an epoxy resin with a polyoxyalkyleneamine having a molecular weight of from about 3,000 to about 15,000 in a ratio of about 0.001 to 0.060 reactive equivalents of polyoxyalkyleneamine to about 1.0 reactive equivalents of epoxy resin. The self-dispersing curable epoxy resin forms an aqueous dispersion upon mixing with water. When cured, the dispersion is useful as a coating composition.
    Type: Grant
    Filed: September 15, 1995
    Date of Patent: September 25, 2001
    Assignee: Henkel Corporation
    Inventors: John G. Papalos, Shailesh Shah, Reuben H. Grinstein, Joseph L. Mulvey, Brian G. Jewell
  • Patent number: 6232433
    Abstract: A composition comprising the reaction product of: a) a polycarboxylic member selected from the group consisting of polycarboxylic acids comprised of a diacid having more than about 12 carbon atoms and reactive derivatives thereof (e.g. alkyl esters thereof wherein the alkyl group has from 1 to 4 carbon atoms), b) an ethylenically unsaturated member selected from the group consisting of ethylenically unsaturated mono-carboxylic acids and reactive derivatives thereof, (e.g. alkyl esters thereof wherein the alkyl group thereof has from 1 to 4 carbon atoms), and c) an ethoxylated alkanetriol having an average degree of ethoxylation per hydroxyl of less than about 2 and comprised predominantly of ethoxylated alkanetriol species having one ethoxylate group per hydroxyl. This composition is useful as a polymerizable component, particularly for UV curable coatings and inks.
    Type: Grant
    Filed: October 27, 1997
    Date of Patent: May 15, 2001
    Assignee: Henkel Corporation
    Inventor: Ramesh Narayan
  • Patent number: 6204297
    Abstract: Novel nonionic gemini surfactants are extremely effective emulsifiers for oil-in-water emulsions that provide improved detergency at even low concentration levels. The surfactants are characterized by the formula: wherein R1 is independently H or a C1 to C22 alkyl, R2 is H or C1 to C22 alkyl and R3 is D1—R4—D1 or R4—D1—R4 wherein R4 is independently a C1-C10 alkyl group, —C(O)—, —R5[O(EO)a(PO)b]—, —O—R5—O—, or aryl, e.g. phenyl, and D1 is independently —O—, —S—, —S—S—, —SO2—, —C(O)—, a polyether group [—O(EO)a(PO)b—], an amide group [—C(O)N(R6)—], an amino group [—N(R6)—], —O—R5—O—, or aryl.
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: March 20, 2001
    Assignee: Rhodia Inc.
    Inventors: David James Tracy, Ruoxin Li, Manilal S. Dahanayake, Jiang Yang
  • Patent number: 6197879
    Abstract: A polymer useful as an inorganic pigment dispersant is provided. The polymer is derived from monomers consisting essentially of an ethylenically unsaturated aromatic monomer, an ethylenically unsaturated dicarboxylic acid monomer, and an ethylenically unsaturated monocarboxylic acid monomer. The total amount of said ethylenically unsaturated acid monomers is sufficient to permit said polymer to associate with an inorganic pigment in an aqueous medium in a manner which disperses said inorganic pigment in said aqueous medium to form a stable aqueous dispersion of said inorganic pigment, and the amount of said ethylenically unsaturated aromatic monomer is sufficient to reduce the water sensitivity of a dried coating of a latex paint comprised of said stable aqueous dispersion of said inorganic pigment. A process of preparing a polymer useful as an inorganic pigment dispersant and a method of preparing an inorganic pigment dispersion useful in the preparation of latex paints are also provided.
    Type: Grant
    Filed: September 13, 1996
    Date of Patent: March 6, 2001
    Assignee: Henkel Corporation
    Inventors: Stephen A. Fischer, Michael S. Wiggins, Bruce Matta, Eric Nowicki
  • Patent number: 6165955
    Abstract: Novel cold pearlizing concentrates provide pearlescence to personal care and beauty care products, such as shampoos and beauty soaps, providing added luster and sheen. The pearlizing agent consists essentially of a fatty acid based member selected from the group consisting of hydroxyl stearate, polyethylene glycol mono- and di-stearates, ethylene glycol mono- and distearates, stearic monoethanolamide, and mixtures thereof, wherein at least about 90% by weight of the fatty acids of said fatty acid based member consist of octadecanoic acid. The pearlizing agent has high temperature stability and is stable in shampoos which also contain a silicone emulsion, even at temperatures as high as 65.degree. C.
    Type: Grant
    Filed: March 6, 1998
    Date of Patent: December 26, 2000
    Assignee: Rhodia Inc.
    Inventors: Pu Chen, Chengshuang Zhang
  • Patent number: 6166159
    Abstract: Described are high-strength materials which are degradable and resorbable in the human and animal organisms and shaped articles manufactured therefrom, such as implants, based on cured (meth)acrylic acid esters of polyfunctionally hydroxyl-terminated oligomers of lower hydroxycarboxylic acids {polyfunctional (meth)acrylic acid esters}. The invention is characterized in that said materials and/or shaped articles have been three-dimensionally cross-linked by radiation-curing and/or any other, however boron-free, free radical-initiated polymerization of the polyfunctional (meth)acrylic acid esters and exhibit a tensile strength under standard conditions of at least 10 N/mm.sup.2.
    Type: Grant
    Filed: May 26, 1993
    Date of Patent: December 26, 2000
    Assignee: Merck Patent GmbH
    Inventor: Wolfgang Ritter
  • Patent number: 6124382
    Abstract: The invention concerns the use as thermothickeners of multi-block copolymers of general formula (I) or (II): ##STR1## wherein E designates a polyoxyalkylene sequence; A designates a water-soluble polymer sequence; X is a sulphur or oxygen atom; Y is an oxygen atom or an --N--R' group, R' being a linear or branched alkyl; R is a linear or branched alkyl, aralky or alkylaryl group; and n is such that the molecular mass of the multi-block copolymers Mp is greater than 250,000 g/mol.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: September 26, 2000
    Assignee: Rhodia Chimie
    Inventors: Pascale Corpart, Herve Adam, Dominique Charmot
  • Patent number: 6069275
    Abstract: A novel monomer composition for promoting wet adhesion of latex polymers for paints is provided. The composition consists essentially of a monomer having the formula: ##STR1## The preferred monomer is derived from the reaction of hydroxyethyl methacrylate with isophorone diisocyanate followed by reaction of the monourethane product the N-aminoethyl ethylene urea. The monomer is preferably copolymerized in an emulsion polymerization with acrylic and/or vinyl monomers.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: May 30, 2000
    Assignee: Rhodia Inc.
    Inventors: Norman Shachat, Zenyk Kosarych
  • Patent number: 6060522
    Abstract: A solid, water-soluble complex comprising:a) a polysiloxane of the formula: ##STR1## wherein n is from 2 to 6; a is from 8 to 25; and b is from 0 to 25; and the oxyalkylene groups may be random or block mixtures; y is from 0 to 5; x is from 1 to 5; and R is selected from the group consisting of hydrogen, C.sub.1 -C.sub.4 alkyl, and a C.sub.1 -C.sub.4 alkyl ester; or ##STR2## wherein A is a linear or branched alkyl having 6 to 30 carbon atoms; G is a glycol moiety of the formula --R'(OCH.sub.2 CH.sub.2).sub.m OR" wherein R' is a divalent alkylene group having 2 to 6 carbon atoms; R" is selected from the group consisting of hydrogen, C.sub.1 -C.sub.4 alkyl, and a C.sub.1 -C.sub.4 alkyl ester; m is 8 to 100; y is 0 to 5; X is 0.1 to 2.5; and z is 0.1 to 5.0;b) a complex-forming agent of the formula: ##STR3## wherein X is O, S, Se, or Te, and c) a readily clathratable polyoxyethylene, e.g. a tridecyl alcohol ethoxylate having eight or more oxyethylene units.
    Type: Grant
    Filed: August 14, 1997
    Date of Patent: May 9, 2000
    Assignee: Rhodia Inc.
    Inventors: Norman Robert Pallas, James Lyle Hazen
  • Patent number: 6057463
    Abstract: Blends of N-acyl aminoalkane sulfonates and amphoteric and/or anionic surfactants can be prepared by quenching a molten reaction mixture of an aminoalkane sulfonate amidated with a fatty acid with an aqueous solution comprising an amphoteric and/or anionic surfactant.N--acyl aminoalkane sulfonates can be purified by quenching a molten reaction mixture in isopropanol.
    Type: Grant
    Filed: April 30, 1996
    Date of Patent: May 2, 2000
    Assignee: Rhodia Inc.
    Inventors: David James Tracy, Paul Frank D'Angelo
  • Patent number: 6057282
    Abstract: Imadazoline-based amphoacetates of higher purity, containing essentially negligible amounts of unalkylated amido amines, lower amounts of glycolic acid salts and monochloroacetate salts, superior to currently available conventional amphoacetates, are provided. This is demonstrated by their improved surface-active properties. Lower inherent irritation properties may be expected due to improved purity.The higher purity amphoacetates can be obtained via processes utilizing precise pH control during the reaction of imidazoline, or its open-chain derivatives, with alkylating agents, e.g. sodium monochloroacetate. The pH can be controlled by adding the base slowly or automatically in response to a pH metering device to maintain a constant pH, or by a series of staged additions which are calculated to maintain pH within a stated range. The reaction may also be carried out by conducting the initial hydrolysis of the imidazoline ring structure, followed by alkylation.
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: May 2, 2000
    Assignee: Rhodia Inc.
    Inventors: Bharat Desai, Peter Lees, Jean-Marc Ricca, David J. Tracy
  • Patent number: 6051730
    Abstract: A solid, water-soluble complex comprising:a) a water-miscible polysiloxane of the formula: ##STR1## wherein n is from 2 to 6; a is from 8 to 25; and b is from 0 to 25; and the oxyalkylene groups may be random or block mixtures; y is from 0 to 5; x is from 1 to 5; and R is selected from the group consisting of hydrogen, C.sub.1- C.sub.4 alkyl, and a C.sub.1- C.sub.4, alkyl ester; or ##STR2## wherein A is a linear or branched alkyl having 6 to 30 carbon atoms; G is a glycol moiety of the formula --R' (OCH.sub.2 CH.sub.2) .sub.m OR" wherein R' is a divalent alkylene group having 2 to 6 carbon atoms; R" is selected from the group consisting of hydrogen, C.sub.1- C.sub.4 alkyl, and a C.sub.1- C.sub.4 alkyl ester; m is 8 to 100; y is 0 to 5; X is 0.1 to 2.5; and z is 0.1 to 5.0; andb) a complex-forming agent of the formula: ##STR3## wherein X is O, S, Sc, or Te. These complexes are useful useful as adjuvants for dry agricultural chemicals such as pesticides and/or fertilizers.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: April 18, 2000
    Assignee: Rhodia Inc.
    Inventors: Norman R. Pallas, James L. Hazen
  • Patent number: 6040288
    Abstract: Provided are methods of washing fabric articles in the presence of silicone oils to provide for color protection and/or fragrance retention in the washing of fabric articles with detergents. Fabric articles are washed in a washing medium comprised of a major amount by weight of water, a first minor amount by weight of a detergent and a second minor amount by weight of an aminosilicone having the formula: ##STR1## wherein: the variables are defined in the specification wherein said first minor amount by weight is greater than said second minor amount by weight. In preferred embodiments of this method, said washing medium is the product of mixing water with a composition comprised of said aminosilicone compound in association with an insoluble support. In particularly preferred embodiments, an aminosilicone compound wherein R.sup.1 and R.sup.8 are both alkoxy, (typically methoxy) is employed.
    Type: Grant
    Filed: February 20, 1998
    Date of Patent: March 21, 2000
    Assignee: Rhodia Inc.
    Inventors: Christine Popoff, Alwyn Nartey, Robert Gabriel, Eric Aubay
  • Patent number: 6040484
    Abstract: The present invention relates to a process for the hydroxylation of phenolic compounds and, more particularly, to a process for the hydroxylation of phenols and phenolic ethers with hydrogen peroxide. The invention relates to a process for the hydroxylation of phenolic compounds using hydrogen peroxide, said process being characterized in that the reaction is carried out in the presence of an effective quantity of at least one rare earth or bismuth triflate.
    Type: Grant
    Filed: August 13, 1998
    Date of Patent: March 21, 2000
    Assignee: Rhodia Chimie
    Inventors: Michel Costantini, Laurent Gilbert, Michel Spagnol
  • Patent number: 6030938
    Abstract: A novel, salt-free monoamphopropionate amphoteric surfactant is prepared in yields of from 75% to 80%, from a reaction comprising an imidazoline and a mixture of acrylic acid and sodium acrylate in an aqueous medium. The acrylic acid/sodium acrylate mixture is comprised of the two components in a range of molar ratios of from about 1:6 to about 1:3, respectively, and by replacing methyl acrylate, the reaction does away with the production of methanol which is an unwanted, hazardous and toxic byproduct. The imidazoline reacts in amounts in excess of 90% resulting in the highly pure yields and any left over unreacted acrylic acid can be easily removed by treating it with sodium bisulfate.
    Type: Grant
    Filed: December 31, 1996
    Date of Patent: February 29, 2000
    Assignee: Rhodia Inc.
    Inventors: Shiming Wo, Ji Li, Mohamed Hashem, Rastko Vukov
  • Patent number: 6030630
    Abstract: A cosmetic composition for the hair and/or skin comprising a water-dispersible sulfone copolyester with polyorganosiloxane units incorporating a plurality of recurrent sulfone polyester units and polyorganosiloxane units which have: a molecular mass number between 5000 and 45,000; a sulfur weight content of 0.5 to 6% compared with the said sulfone copolyesters with polyorganosiloxane units; and a silicium content of 0.05 to 20% by weight compared with the said sulfone copolyesters with polyorganosiloxane units.
    Type: Grant
    Filed: June 29, 1998
    Date of Patent: February 29, 2000
    Assignee: Rhodia Chimie
    Inventors: Etienne Fleury, Jean-Marc Ricca
  • Patent number: 6013840
    Abstract: The present invention concerns a process for the acylation of an aromatic ether.Preferably the invention relates to a process for the acylation of a substituted aromatic ether, in particular veratrol.The acylation process of the invention consists of reacting the ether with an acylation agent in the presence of a zeolitic catalyst, and is characterized in that the acylation reaction is carried out in the presence of an effective quantity of a catalyst comprising a faujasite type zeolite or a Y zeolite with the following physico-chemical characteristics:an atomic ratio denoted "global Si/Me.sup.1 " between the number of atoms of the element silicon and the number of atoms of every trivalent element Me.sup.1 contained in the zeolite in the range 2.4 to 90, preferably in the range 2.4 to 75, and more preferably in the range 2.4 to 60;an Me.sup.2 alkali metal content such that the atomic ratio Me.sup.2 /Me.sup.1(IV) between the number of atoms of alkali metal Me.sup.
    Type: Grant
    Filed: January 9, 1997
    Date of Patent: January 11, 2000
    Assignee: Rhodia Chimie
    Inventors: Michel Spagnol, Laurent Gilbert, Eric Benazzi, Christian Marcilly
  • Patent number: 6013185
    Abstract: Contaminated aqueous systems can be cleaned using an ultra-filtration system that allows for high recovery yields of the surfactant employed therein for recycle and reuse. The system employs specific nonionic surfactants which remain polar and solvated at the higher operating temperatures of the system. The surfactant/contaminant containing aqueous system is ultra-filtered resulting in the surfactant passing through with the permeate at extremely high yields for recovery and reuse.
    Type: Grant
    Filed: September 25, 1997
    Date of Patent: January 11, 2000
    Assignee: Rhodia Inc.
    Inventors: Mark E. Ventura, Manilal S. Dahanayake