Patents Represented by Attorney, Agent or Law Firm Thoburn T. Dunlap
  • Patent number: 8293845
    Abstract: A method for increasing the efficacy of hydrophobically modified (meth)acrylic based polymers to increase the critical micelle concentration of a surfactant composition by attenuating the degree of neutralization (DN) of the polymer is disclosed.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: October 23, 2012
    Inventors: Krishnan Tamareselvy, William F. Masler, III, Deborah S. Filla, Gary Gray
  • Patent number: 8273845
    Abstract: The present invention relates to a soft, semicrystalline, thermoplastic elastomer composition which is comprised of (I) a hydrophobic thermoplastic block copolymer which is comprised of (I) the reaction product of (1) a hydrophobic polyol or polyamine, (2) a polyisocyanate or an aromatic dicarboxylic acid, and (3) a chain extender containing 2 to 20 carbon atoms, or the reaction product of (1) a hydrophobic polyol or polyamine, and (2) a carboxyl terminated telechelic polyamide sequence; wherein the hydrophobic polyol or polyamine has a number average molecular weight in the range of from 1,000 to 4,000 Daltons; wherein the hydrophobic thermoplastic block copolymer has a weight average molecular weight in the range of 50,000 to 1,000,000 Daltons; and (II) from 1 to 80 weight percent of a mineral oil, wherein the soft, semicrystalline, thermoplastic elastomer composition has a Shore A hardness which is within the range of 20 to 80.
    Type: Grant
    Filed: August 17, 2009
    Date of Patent: September 25, 2012
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Donald A. Meltzer, Gilbert T. Montague, Patrick E. Mosier, Jacques P. E. J. Horrion
  • Patent number: 8137754
    Abstract: Thiocarbonate compounds are reacted with various polyols to introduce hydroxyl end groups thereto which can be subsequently reacted with urethane forming compounds to form various polyurethanes including block copolymers thereof.
    Type: Grant
    Filed: July 19, 2005
    Date of Patent: March 20, 2012
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: John Ta-Yuan Lai, Anthony D. Pajerski, Ronald P. Shea
  • Patent number: 8047238
    Abstract: A liner for repairing damaged pipes, such as underground sewer or gas pipes is disclosed. The liner comprises a TPU coating on a fibrous mat of non-woven fabric. The TPU coating is a high heat resistance polyester TPU which allows an epoxy resin/amine to be saturated in the non-woven fabric and the cure initiated by the use of steam or hot water. The cured epoxy resin converts the liner from a flexible state to a rigid state as the liner is cured in place inside the pipe. The TPU containing liner may also be used with thermoset resins other than epoxy resins, such as polyester resins and vinyl ester resins.
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: November 1, 2011
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Robert J. Wiessner, Donald A. Meltzer
  • Patent number: 8044156
    Abstract: Disclosed are multi-purpose polymers that are the polymerization product of a monomer mixture comprising at least one amino-substituted vinyl monomer; at least one nonionic vinyl monomer; at least one associative vinyl monomer; at least one semihydrophobic vinyl surfactant monomer; and, optionally, comprising one or more hydroxy-substituted nonionic vinyl monomer, crosslinking monomer, chain transfer agent or polymeric stabilizer. These vinyl addition polymers have a combination of substituents, including amino substituents that provide cationic properties at low pH, hydrophobic substituents, hydrophobically modified polyoxyalkylene substituents, and hydrophilic polyoxyalkylene substituents. The polymers provide surprisingly beneficial rheological properties in acidic aqueous compositions, and are compatible with cationic materials. The multi-purpose polymers are useful in a variety of products for personal care, health care, household care, institutional and industrial care, and industrial applications.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: October 25, 2011
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Krishnan Tamareselvy, Thomas A. Barker, James E. Mullee, Charles T. Greenslade, Julie F. Schmucker-Castner, Deborah S. Filla
  • Patent number: 8021650
    Abstract: Dimethicone copolyol polymers are synthesized from dimethicone copolyol macromers. Polymers containing the macromer repeating units are useful in a variety of applications including personal care, textile and industrial formulations to deliver softness, lubricity, fixative, humidity resistance, water repellency, gloss, surface modification, and surfactant properties.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: September 20, 2011
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Krishnan Tamareselvy, Thomas Barker, Deborah Filla, Aroop Kumar Roy, Carol Kyer, Denise Rafferty, Joseph Zellia, Regina Klump
  • Patent number: 8003585
    Abstract: This invention relates to cationic Cassia polymers and to their use in hair fixative applications. The cationic Cassia polymers demonstrate superior stiffness profiles and a high level of curl retention when subjected to high humidity conditions for extended periods of time.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: August 23, 2011
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Carole A. Lepilleur, Denise W. Rafferty, Joseph A. Zellia, Jeffrey A. Fruscella
  • Patent number: 7923422
    Abstract: This invention relates to cationically derivatized polycalactomannans obtained from cassia tora and cassia obtusifolia and to their use in personal care, household care, and institutional care compositions.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: April 12, 2011
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventor: Carole A. Lepilleur
  • Patent number: 7892525
    Abstract: The present invention relates to antiperspirant compositions comprising a cationic hydrophobically modified polymeric gelling agent and an acidic antiperspirant compound. The antiperspirant compositions are transparent, phase stable, non-whitening and non-staining to the skin and clothing following topical application. The present invention also is directed to methods of using the antiperspirant compositions.
    Type: Grant
    Filed: September 17, 2007
    Date of Patent: February 22, 2011
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: David Faivre, Pinky G. Purohit, Krishnan Tamareselvy, Duane Gerard Krzysik, Dorina Ghirardi, Alan Joseph Suares
  • Patent number: 7851582
    Abstract: Dithiocarbonate derivatives are disclosed, along with a process for preparing the same. The dithiocarbonate compounds can be utilized as initiators, chain transfer agents and/or terminators in controlled free radical polymerizations. The dithiocarbonates can be used to produce polymers having narrow molecular weight distribution. Advantageously, the compounds of the present invention can also introduce functional groups into the resulting polymers. The dithiocarbonate compounds have low odor and are substantially colorless.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: December 14, 2010
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventor: John Ta-Yuan Lai
  • Patent number: 7759296
    Abstract: This invention relates to cationic Cassia polymers and to their use in hair fixative applications. The cationic Cassia polymers demonstrate superior stiffness profiles and a high level of curl retention when subjected to high humidity conditions for extended periods of time.
    Type: Grant
    Filed: September 16, 2008
    Date of Patent: July 20, 2010
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Carole A. Lepilleur, Denise W. Rafferty, Joseph A. Zellia, Jeffrey A. Fruscella
  • Patent number: 7704934
    Abstract: This invention relates to cationically derivatized polycalactomannans obtained from cassia tora and cassia obtusifolia and to their use in personal care, household care, and institutional care compositions.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: April 27, 2010
    Assignee: Lubrizol Advanced Marterials, Inc.
    Inventor: Carole A. Lepilleur
  • Patent number: 7649047
    Abstract: Disclosed are multi-purpose alkali-swellable and alkali soluble associative polymers, which are the polymerization product of a monomer mixture comprising: (a) at least one acidic vinyl monomer; (b) at least one nonionic vinyl monomer; (c) a first associative monomer having a first hydrophobic end group; (d) a monomer selected from the group consisting of a second associative monomer having a second hydrophobic end, a semihydrophobic monomer and a combination thereof; and, optionally, (e) one or more crosslinking monomers or chain transfer agents. When monomer (d) is an associative monomer, the first and second hydrophobic end groups of monomers (c) and (d) have significantly different hydrophobic and/or steric character from one another. The multi-purpose associative polymers surprisingly provide desirable rheological and aesthetic properties in aqueous media.
    Type: Grant
    Filed: October 22, 2007
    Date of Patent: January 19, 2010
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Krishnan Tamareselvy, Thomas A. Barker, Pravinchandra K. Shah, Kittie L. Ramey
  • Patent number: 7557235
    Abstract: Carboxylate terminated thiocarbonates are reacted with a polyfunctional alcohol to form a hydroxyl-terminated thiocarbonate compound.
    Type: Grant
    Filed: August 6, 2004
    Date of Patent: July 7, 2009
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: John Ta-Yuan Lai, Ronald P. Shea
  • Patent number: 7459496
    Abstract: This invention relates to waterbone coating compositions having improved compatability with metal pigments, i.e., improved shelf life and reduced gassing and gellation. The composition comprise at least one aqueous dispersion of (1) at least one emulsion copolymer polymerized from (a) at least one ethylenically unsaturated anionic monomer and (b) at least one other olefinically unsaturated monomer, said copolymer being made using at least one phosphate surfactant having at least one phosphorus acid group or salt thereof, said copolymer being crosslinked, and (2) at least one non-water soluble metal pigment. The compositions are useful in paints and other coatings.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: December 2, 2008
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Shui-Jen Raymond Hsu, Tina R. Dame, Prashant Patel
  • Patent number: 7439214
    Abstract: This invention relates to cationically derivatized polycalactomannans obtained from cassia tora and cassia obtusifolia and to their use in personal care, household care, and institutional care compositions.
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: October 21, 2008
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Ferdinand Utz, Carole A. Lepilleur, Krishnan Tamareselvy, Joseph A. Chiarelli, Julie F. Schmucker-Castner, Michael P. Myers, Daniel F. Hasman, Brian J. Vondruska, William R. Wilber, Hong Luo, Nancy S. Marchant, Francine Shuster
  • Patent number: 7423082
    Abstract: Thiocarbonate compounds which, in one embodiment, are utilized as a rheology modifier or associative thickener. The thiocarbonate compounds thicken or increase the viscosity of a composition, preferably an aqueous composition when used in an effective amount. In one preferred embodiment, the thiocarbonate compounds include at least one hydrophilic group containing repeat unit such as derived from acrylic acid, and at least one hydrophobic group to enhance association with other compounds and thus increase viscosity of a composition. Aqueous composition comprising a latex and thiocarbonate associative thickeners are described.
    Type: Grant
    Filed: August 18, 2005
    Date of Patent: September 9, 2008
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: John Ta-Yuan Lai, Shui-Jen Raymond Hsu, Krishnan Tamareselvy
  • Patent number: 7378479
    Abstract: Disclosed are multi-purpose polymers that are the polymerization product of a monomer mixture comprising at least one amino-substituted vinyl monomer; at least one nonionic vinyl monomer; at least one associative vinyl monomer; at least one semihydrophobic vinyl surfactant monomer; and, optionally, comprising one or more hydroxy-substituted nonionic vinyl monomer, crosslinking monomer, chain transfer agent or polymeric stabilizer. These vinyl addition polymers have a combination of substituents, including amino substituents that provide cationic properties at low pH, hydrophobic substituents, hydrophobically modified polyoxyalkylene substituents, and hydrophilic polyoxyalkylene substituents. The polymers provide surprisingly beneficial rheological properties in acidic aqueous compositions, and are compatible with cationic materials. The multi-purpose polymers are useful in a variety of products for personal care, health care, household care, institutional and industrial care, and industrial applications.
    Type: Grant
    Filed: August 22, 2003
    Date of Patent: May 27, 2008
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Krishnan Tamareselvy, Thomas A. Barker, James E. Mullee, Charles T. Greenslade, Julie F. Schmucker-Castner, Deborah S. Filla
  • Patent number: 7335788
    Abstract: Dithiocarbonate derivatives are disclosed, along with a process for preparing the same. The dithiocarbonate compounds can be utilized as initators, chain transfer agents and/or terminators in controlled free radical polymerizations. The dithiocarbonates can be used to produce polymers having narrow molecular weight distribution. Advantageously, the compounds of the present invention can also introduce functional groups into the resulting polymers. The dithiocarbonate compounds have low odor and are substantially colorless.
    Type: Grant
    Filed: October 8, 2003
    Date of Patent: February 26, 2008
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventor: John Ta-Yuan Lai
  • Patent number: 7279591
    Abstract: A s,s?-bis-(?,??-disubstituted-??-acetic acid)-trithiocarbonate and derivatives thereof can be used as an initiator, chain transfer agent, or terminator for polymerization of monomers such as free radical polymerizable monomers. Homopolymers, copolymers, and the like as well as block copolymers can be made utilizing the trithio carbonate compound such as in a living free radical polymerization as well as to form telechelic polymers.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: October 9, 2007
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventor: John T. Lai