Patents by Inventor Willie Lau

Willie Lau has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20080206469
    Abstract: An aqueous composition including: a) an aqueous medium; b) a polymer; c) from 0.03% to 1% by weight based on the weight of said polymer of a compound having the formula A-B-C-D wherein A is a perfluoro group of the formula CF3(CF2)n wherein n is from 1 to 5, B is a hydrocarbon group of the formula (CH2)m wherein m is from 1 to 4, C is a phosphate residue, and D is a cation, wherein said compound has a bioconcentration factor (BCF) from 1 to 1000 is provided. Processes for forming the aqueous composition and a polymeric coating are also provided.
    Type: Application
    Filed: January 28, 2008
    Publication date: August 28, 2008
    Inventors: Arnold Stan Brownell, Willie Lau
  • Publication number: 20080206823
    Abstract: Provided is a method of making at least one inclusion complex comprising a useful complexant and a cyclodextrin, wherein said method comprises the steps of (a) making said cyclodextrin, and (b) mixing said cyclodextrin with said useful complexant, wherein said method is conducted without purifying said cyclodextrin. Also provided is a composition useful for manufacturing inclusion complexes comprising water, at least one starch, at least one enzyme, and at least one useful complex ant.
    Type: Application
    Filed: February 15, 2008
    Publication date: August 28, 2008
    Inventors: Richard Martin Jacobson, Willie Lau
  • Patent number: 7416739
    Abstract: A composition for retaining active ingredients in personal care compositions is described based on one or more polymers having a network structure in an oil phase in amounts from 0.01 to 10% by weight based on the total weight of the composition in the oil phase, the polymers including at least one associative agent, the composition further including at least one active component. The oil phase viscosity of each composition is at least 10 poise under a shear stress up to 1000 dynes/cm2.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: August 26, 2008
    Assignee: Rohm and Haas Company
    Inventors: Steven M. Baxter, Willie Lau, Berislav Markovic, Mark E. Rerek, Curtis Schwartz, Thomas R. Tepe, Elliott Zucker
  • Patent number: 7338928
    Abstract: The present invention relates to a controlled release system that can be incorporated in cosmetic, personal care, and household products to effectively encapsulate wide range of active ingredients and sensory markers and release them in response to moisture or over an extended period of time. The controlled release system of the present invention consists of oil absorbing polymer nanospheres coated with water sensitive surface active polymers.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: March 4, 2008
    Assignee: Rohm and Haas Company
    Inventors: Willie Lau, Curtis Schwartz, Adi Shefer
  • Publication number: 20070128260
    Abstract: An aqueous dispersion comprising: a) from 5 to 99.9% by weight, based on the weight of solids in the aqueous dispersion, of one or more polymers having a number average molecular weight less than 10,000; b) from 0.1 to 94.9% by weight, based on the weight of solids in the aqueous dispersion, of one or more active ingredients selected from the group consisting of water soluble active ingredients, partially water soluble active ingredients, water insoluble active ingredients and combinations thereof; and c) from 30% to 95% by weight of water.
    Type: Application
    Filed: November 28, 2006
    Publication date: June 7, 2007
    Inventors: Willie Lau, Miao-Hsun Sheng, Robert Solomon
  • Publication number: 20070117725
    Abstract: A synthetic lubricant comprising a relatively low-molecular-weight acrylic polymer.
    Type: Application
    Filed: November 8, 2006
    Publication date: May 24, 2007
    Inventors: Shih-Ying Hsu, Willie Lau, Miao-Hsun Sheng
  • Publication number: 20070066711
    Abstract: A polymeric binder useful in making inkjet ink formulations, especially for printing on substrates difficult to adhere to, is described. The polymeric binder includes high molecular weight and low molecular weight components. Also described is the method of making such binder and inks, as well as the images produced.
    Type: Application
    Filed: August 2, 2006
    Publication date: March 22, 2007
    Inventors: David Fasano, Hailan Guo, Willie Lau
  • Publication number: 20060223935
    Abstract: An aqueous polymer dispersion comprising polymer particles (A), polymer particles (B) and at least one low molecular weight polymer (C) where polymer particles (A) comprise high molecular weight polymer pA having Mw >50,000 and acid number of from 0 to 160, polymer particles (B) comprise high molecular weight polymer pB having Mw >50,000 and acid number of from 0 to 160, and C is an addition polymer having a calculated Tg,(low) of less than 10° C.
    Type: Application
    Filed: March 31, 2006
    Publication date: October 5, 2006
    Inventors: David Fasano, Matthew Gebhard, Kathleen Koziski, Willie Lau, Aurelia Sheppard
  • Publication number: 20060189479
    Abstract: A method for polymerizing ethylenically unsaturated monomers, including non-polar olefinic monomers, polar olefinic monomers, and combinations thereof, using a protected catalytic composition in an aqueous medium, is disclosed. An aqueous dispersion containing the protected catalytic composition is also disclosed, along with an aqueous dispersion of the addition polymer produced by the polymerization.
    Type: Application
    Filed: January 26, 2006
    Publication date: August 24, 2006
    Inventors: Ralph Even, Willie Lau
  • Publication number: 20060183839
    Abstract: A process for making an aqueous dispersion is provided. More specifically, a process for making an aqueous dispersion having at least two polymeric components is provided.
    Type: Application
    Filed: January 24, 2006
    Publication date: August 17, 2006
    Inventor: Willie Lau
  • Patent number: 7001949
    Abstract: An aqueous coating composition comprising a comb copolymer is disclosed. A method of forming a coating from the aqueous coating composition, and a coating formed by that method are also disclosed, as is a method of forming the comb copolymer. The comb copolymer is characterized in that aqueous dispersions of the comb copolymer have a Hard/Soft Balance Advantage value of at least 25%. The aqueous coating composition is capable of producing coatings having an excellent balance of hard and soft properties.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: February 21, 2006
    Assignee: Rohm and Haas Company
    Inventors: David M. Fasano, Karl A. Bromm, Willie Lau, Jack C. Thibeault, David A. Larson, Paul R. Van Rheenen
  • Publication number: 20050153862
    Abstract: The present invention relates to a controlled release system that can be incorporated in cosmetic, personal care, and household products to effectively encapsulate wide range of active ingredients and sensory markers and release them in response to moisture or over an extended period of time. The controlled release system of the present invention consists of oil absorbing polymer nanospheres coated with water sensitive surface active polymers.
    Type: Application
    Filed: December 3, 2004
    Publication date: July 14, 2005
    Inventors: Willie Lau, Curtis Schwartz, Adi Shefer
  • Patent number: 6864309
    Abstract: An aqueous polymerization method for preparing graft copolymers is disclosed. Copolymer compositions produced therefrom are also disclosed. The method of the present invention includes (a) forming a macromonomer aqueous emulsion containing water insoluble macromonomer particles; (b) forming a monomer composition containing at least one ethylenically unsaturated monomer; and (c) combining at least a portion of the macromonomer aqueous emulsion and at least a portion of the monomer composition and polymerizing the resulting polymerization reaction mixture in the presence of an initiator to form a copolymer composition. The copolymer composition produced contains water insoluble particles of graft copolymer.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: March 8, 2005
    Assignee: Rohm and Haas Company
    Inventors: Willie Lau, Karl Allen Bromm, Paul Ralph Van Rheenen
  • Publication number: 20040220329
    Abstract: An aqueous polymer composition including a plurality of comb copolymer particles is disclosed. The comb copolymer particles contain comb copolymer having a polymer backbone with at least one attached graft segment. The polymer backbone and the at least one graft segment have select compositional ranges and select glass transition temperature ranges. Further, the comb copolymer contains as a polymerized unit at least one select monomer such as, aldehyde reactive group-containing monomer or certain styrenic monomers. The aqueous polymer composition of the present invention is useful for preparing coatings having one or more improved properties such as dirt pickup resistance, gloss, gloss retention, alkyd adhesion, and tint retention. A method for forming a coated substrate from the aqueous polymer composition of this invention is also provided.
    Type: Application
    Filed: March 24, 2004
    Publication date: November 4, 2004
    Inventors: Robert David Solomon, Ralph Craig Even, Willie Lau, David Michael Fasano, Karl Allen Bromm
  • Patent number: 6809141
    Abstract: An aqueous dispersion of a segmental copolymer, wherein the aqueous dispersion has a Hard/Soft Balance Advantage value of at least 25% is disclosed. A method for preparing the aqueous dispersion of a segmental copolymer is also disclosed, as is a film produced thereby.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: October 26, 2004
    Assignee: Rohm and Haas Company
    Inventors: David M. Fasano, Karl A. Bromm, Willie Lau, Jack C. Thibeault, David A. Larson, Paul R. Van Rheenen
  • Patent number: 6797775
    Abstract: A method of forming a thermoplastic melt blend including a segmental copolymer, wherein the melt blend displays improved processing characteristics, is disclosed. A method of forming a plastic article including a thermoplastic and a segmental copolymer is further disclosed, as is a plastic article formed thereby.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: September 28, 2004
    Assignee: Rohm and Haas Company
    Inventors: Willie Lau, Paul Ralph Van Rheenen
  • Publication number: 20040167269
    Abstract: An aqueous polymerization method for preparing graft copolymers is disclosed. Copolymer compositions produced therefrom are also disclosed. The method of the present invention includes (a) forming a macromonomer aqueous emulsion containing water insoluble macromonomer particles; (b) forming a monomer composition containing at least one ethylenically unsaturated monomer; and (c) combining at least a portion of the macromonomer aqueous emulsion and at least a portion of the monomer composition and polymerizing the resulting polymerization reaction mixture in the presence of an initiator to form a copolymer composition. The copolymer composition produced contains water insoluble particles of graft copolymer.
    Type: Application
    Filed: January 23, 2004
    Publication date: August 26, 2004
    Inventors: Willie Lau, Karl Allen Bromm, Paul Ralph Van Rheenen
  • Patent number: 6770285
    Abstract: Hydrophobic, oil-absorbing polymeric compositions, prepared from high levels of hydrophobic monomers, are provided for transferring oily substances and hydrophobic materials to and from various surfaces in a heterogeneous medium. A reversible process is described for transferring oily substances and hydrophobic materials to and from various surfaces in a heterogeneous medium using oil-absorbing films, solid particles or dispersions of aqueous emulsion polymers prepared from hydrophobic monomers.
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: August 3, 2004
    Assignee: Rohm and Haas Company
    Inventors: Andrea C. Keenan, Willie Lau, Curtis Schwartz
  • Publication number: 20040110900
    Abstract: A method of forming a toughened article from a blend of a thermoplastic polymer and a comb copolymer is disclosed, along with the toughened article produced thereby. Compositions such as solids blends and melt blends, including a thermoplastic polymer and a comb copolymer, are also disclosed.
    Type: Application
    Filed: November 19, 2003
    Publication date: June 10, 2004
    Inventors: Willie Lau, Paul Ralph Van Rheenen
  • Patent number: 6723775
    Abstract: The present invention provides an aqueous polymerization method for preparing graft copolymers, and copolymer compositions produced therefrom. The method of the present invention includes (a) forming a macromonomer aqueous emulsion containing water insoluble macromonomer particles; (b) forming a monomer composition containing at least one ethylenically unsaturated monomer; and (c) combining at least a portion of the macromonomer aqueous emulsion and at least a portion of the monomer composition and polymerizing the resulting polymerization reaction mixture in the presence of an initiator to form a copolymer composition. The copolymer composition produced contains water insoluble particles of graft copolymer.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: April 20, 2004
    Assignee: Rohm and Haas Company
    Inventors: Willie Lau, Karl Allen Bromm, Paul Ralph Van Rheenen