Patents by Inventor William W. Maslanka

William W. Maslanka 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).

  • Patent number: 7317053
    Abstract: The present invention relates to aqueous compositions comprising component (A) which comprises at least one water-soluble component comprising at least one functional group that undergoes a crosslinking reaction, preferably upon drying and/or heating; component (B) which comprises at least one film-forming material, preferably a latex material; and component (C) which comprises at least one component that provides at least one of moisture and/or water barrier properties and/or vapor barrier properties greater than that provided by the combination of components (A) and (B) alone.
    Type: Grant
    Filed: July 10, 2000
    Date of Patent: January 8, 2008
    Assignee: Hercules Incorporated
    Inventors: Robert A. Gelman, Matthew B. Howle, Andrea Keys, William W. Maslanka, Jeffrey I. Melzer, Michael T. Raab, Richard A. Stuhrke, Robert G. Szewczyk
  • Patent number: 6908983
    Abstract: The present invention contemplates a process for forming polyaminoamide polymers formed by the reaction of a dibasic acid/ester with excess amounts of an amine; the intermediate polymer resulting therefrom; a process for synthesizing effective, high solids resins resulting from the reaction of intermediate polymers with an epihalohydrin; and the resultant high, solids resin. These resins may be used as wet strength resins in the papermaking industry.
    Type: Grant
    Filed: April 1, 2003
    Date of Patent: June 21, 2005
    Assignee: Hercules Corporation
    Inventor: William W. Maslanka
  • Publication number: 20040198947
    Abstract: The present invention contemplates a process for forming polyaminoamide polymers formed by the reaction of a dibasic acid/ester with excess amounts of an amine; the intermediate polymer resulting therefrom; a process for synthesizing effective, high solids resins resulting from the reaction of intermediate polymers with an epihalohydrin; and the resultant high, solids resin. These resins may be used as wet strength resins in the papermaking industry.
    Type: Application
    Filed: April 1, 2003
    Publication date: October 7, 2004
    Applicant: Hercules Incorporated
    Inventor: William W. Maslanka
  • Patent number: 6677427
    Abstract: A polyamide, the enzymatic reaction product of at least one polyamine and diester, and processes for preparing and using the same. In addition, processes for preparing and using the enzymatic reaction product as creping adhesives and wet strength resins to make cellulose products.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: January 13, 2004
    Assignee: Hercules Incorporated
    Inventors: Huai N. Cheng, Qu-Ming Gu, William W. Maslanka
  • Patent number: 6667384
    Abstract: The present invention contemplates poly(aminoamide) pre-polymers, polyamide polymers, a multi-step process for the synthesis of these pre-polymers and polymers using acrylates and at least one monomer containing at least two primary amines, and the resins resulting from the reaction of the polymers with an epihalohydrin. These resins may be used as wet strength resins and creping aids in the papermaking industry as well as surface additives for wool.
    Type: Grant
    Filed: December 27, 2001
    Date of Patent: December 23, 2003
    Assignee: Hercules Incorporated
    Inventors: Qu-Ming Gu, Armin Michel, Huai Nan Cheng, William W. Maslanka, Ronald R. Staib
  • Publication number: 20030153722
    Abstract: The present invention contemplates poly(aminoamide) pre-polymers, polyamide polymers, a multi-step process for the synthesis of these pre-polymers and polymers using acrylates and at least one monomer containing at least two primary amines, and the resins resulting from the reaction of the polymers with an epihalohydrin. These resins may be used as wet strength resins and creping aids in the papermaking industry as well as surface additives for wool.
    Type: Application
    Filed: December 27, 2001
    Publication date: August 14, 2003
    Applicant: Hercules Incorporated
    Inventors: Qu-Ming Gu, Armin Michel, H. N. Cheng, William W. Maslanka, Ronald R. Staib
  • Patent number: 6586520
    Abstract: The present invention relates to aqueous compositions comprising component (A) which comprises at least one water-soluble component comprising at least one functional group that undergoes a crosslinking reaction, preferably upon drying and/or heating; and component (B) which comprises at least one film-forming material. In particular the composition is a coating composition comprises: (A) at least one polyamidoamine-epihalohydrin resin; and (B) at least one material selected from flexibilizing materials, crosslink inhibiters and combinations thereof in an amount sufficient to impart a cuttability value of less than about 15 to a substrate coated with the coating composition. Component (B) is preferably at least one polymer comprising repeating units derived from an alkyl halide having at least one double bond and an alkene, such as ethylene vinyl chloride.
    Type: Grant
    Filed: July 10, 2000
    Date of Patent: July 1, 2003
    Assignee: Hercules Incorporated
    Inventors: James Canorro, Robert A. Gelman, Matthew B. Howle, Andrea Keys, JoAnne Lefever, William W. Maslanka, Jeffrey I. Melzer, Kevin M. Mottern, Michael T. Raab, William Rodriquez, Richard A. Stuhrke, Jennifer E. Steed, Robert G. Szewczyk
  • Patent number: 6352613
    Abstract: wherein R1 is substituted or unsubstituted alkyl; R2 is substituted or unsubstituted alkyl; R3 is substituted or unsubstituted alkyl; Z is halogen selected from F, Cl, Br and I; x is from about 5 to about 45 mole %; and y is from about 55 to about 95 mole % are useful as wet strength resins and creping adhesives. Methods of producing such resins, and the use of such resins in wet strength and creping applications, as well as compositions suitable for such applications, and combinations of cellulosic product and such resins are also disclosed.
    Type: Grant
    Filed: March 14, 2000
    Date of Patent: March 5, 2002
    Assignee: Hercules Incorporated
    Inventor: William W. Maslanka
  • Patent number: 6294645
    Abstract: The invention relates to resin systems useful for imparting dry-strength to paper without substantially increasing the paper's wet-strength wherein the resin system comprises a cationic component and an anionic component. The invention also relates to the process for incorporating these resin systems into paper and the paper produced containing the resin systems.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: September 25, 2001
    Assignee: Hercules Incorporated
    Inventors: Anthony J. Allen, Elliott Echt, William W. Maslanka, Jeffrey C. Peters
  • Patent number: 5668246
    Abstract: Disclosed is an improvement in a method of making a water-soluble epichlorohydrin resin involving reacting epichlorohydrin with a polyaminoamide. The improvement involves preparing the polyaminoamide in the presence of an acid catalyst (low temperature condensation) followed by reaction with epichlorohydrin.
    Type: Grant
    Filed: August 9, 1996
    Date of Patent: September 16, 1997
    Assignee: Hercules Incorporated
    Inventor: William W. Maslanka
  • Patent number: 5338807
    Abstract: A creping aid comprising the reaction product of a polyamide of a dibasic acid or of the ester of an aliphatic dibasic acid and methyl bis(3-aminopropylamine) with epichlorohydrin in a mole ratio of the polyamide to the epichlorohydrin between about 1:0.1 and about 1:0.33, and a composition comprising an aqueous solution of the creping aid.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: August 16, 1994
    Assignee: Hercules Incorporated
    Inventors: Herbert H. Espy, William W. Maslanka
  • Patent number: 4708772
    Abstract: Disclosed are novel wet strength resins for paper, said resins being derived by reacting an epihalohydrin, such as epichlorohydrin, with a polyamino-copolyamide derived by reacting methylbisaminopropylamine with (a) a diester of oxalic acid and (b) a diester of a saturated dicarboxylic acid containing at least 4 carbon atoms, the mole ratio of (a) to (b) being from about 0.25:1 to about 10:1.
    Type: Grant
    Filed: May 15, 1986
    Date of Patent: November 24, 1987
    Assignee: Hercules Incorporated
    Inventor: William W. Maslanka
  • Patent number: 4605709
    Abstract: Disclosed are novel wet strength resins for paper, said resins being derived by reacting an epihalohydrin, such as epichlorohydrin, with a polyamino-copolyamide derived by reacting methylbisaminopropylamine with (a) a diester of oxalic acid and (b) a diester of a saturated dicarboxylic acid containing at least 4 carbon atoms, the mole ratio of (a) to (b) being from about 0.25:1 to about 10:1.
    Type: Grant
    Filed: January 8, 1985
    Date of Patent: August 12, 1986
    Assignee: Hercules Incorporated
    Inventor: William W. Maslanka
  • Patent number: 4520159
    Abstract: Disclosed is a novel process for producing water-soluble, cationic resins containing halohydrin functionality from basic polyaminopolyamides containing secondary amine functionality without the use of epihalohydrin. The process of this invention comprises reacting the basic polyaminopolyamide in aqueous medium with an allyl halide to form allyl substituents on tertiary nitrogen atoms, converting the allyl substituents to halohydrin moieties by reaction with hypohalous acid and then maintaining the resulting solution at a pH of at least 7.0 until the Gardner-Holdt viscosity of the solution at 24% solids and 25.degree. C. reaches at least B.
    Type: Grant
    Filed: March 21, 1984
    Date of Patent: May 28, 1985
    Assignee: Hercules Incorporated
    Inventor: William W. Maslanka
  • Patent number: 4515657
    Abstract: Disclosed are novel wet strength resins for paper. The resins are produced by reacting an epihalohydrin, such as epichlorohydrin, with a polyaminopolyamide derived by reacting methylbisaminopropylamine with oxalic acid or mixture containing oxalic acid and one or more different saturated dicarboxylic acids or their esters.
    Type: Grant
    Filed: July 2, 1984
    Date of Patent: May 7, 1985
    Assignee: Hercules Incorporated
    Inventor: William W. Maslanka
  • Patent number: 4487884
    Abstract: Disclosed are novel wet strength resins for paper. The resins are produced by reacting an epihalohydrin, such as epichlorohydrin, with a polyaminopolyamide derived by reacting methylbisaminopropylamine with oxalic acid or mixture containing oxalic acid and one or more different saturated dicarboxylic acids or their esters.
    Type: Grant
    Filed: April 27, 1983
    Date of Patent: December 11, 1984
    Assignee: Hercules Incorporated
    Inventor: William W. Maslanka
  • Patent number: 4483959
    Abstract: Disclosed are novel organic pigments adapted particularly for use as fillers for paper. The organic pigments are finely divided particles obtained by graft copolymerizing an ethylenically unsaturated monomer, such as styrene, onto a water-soluble cationic prepolymer in an aqueous solution and in the presence of a free-radical polymerization initiator.
    Type: Grant
    Filed: June 28, 1983
    Date of Patent: November 20, 1984
    Assignee: Hercules Incorporated
    Inventors: William W. Maslanka, Gavin G. Spence
  • Patent number: 4469555
    Abstract: Disclosed are novel organic pigments adapted particularly for use as fillers for paper. The organic pigments are finely divided particles obtained by graft copolymerizing an ethylenically unsaturated monomer, such as styrene, onto a water-soluble cationic prepolymer in an aqueous solution and in the presence of a free-radical polymerization initiator.
    Type: Grant
    Filed: December 30, 1981
    Date of Patent: September 4, 1984
    Assignee: Hercules Incorporated
    Inventors: William W. Maslanka, Gavin G. Spence
  • Patent number: 4456724
    Abstract: Disclosed are novel organic pigments adapted particularly for use as fillers for paper. The organic pigments are finely divided particles obtained by graft copolymerizing an ethylenically unsaturated monomer, such as styrene, onto a water-soluble cationic prepolymer in an aqueous solution and in the presence of a free-radical polymerization initiator.
    Type: Grant
    Filed: March 31, 1982
    Date of Patent: June 26, 1984
    Assignee: Hercules Incorporated
    Inventors: William W. Maslanka, Gavin G. Spence
  • Patent number: 4434267
    Abstract: Disclosed are novel organic pigments adapted particularly for use as fillers for paper. The organic pigments are finely divided particles obtained by graft copolymerizing an ethylenically unsaturated monomer, such as styrene, onto a water-soluble cationic prepolymer in an aqueous solution and in the presence of a free-radical polymerization initiator.
    Type: Grant
    Filed: March 31, 1982
    Date of Patent: February 28, 1984
    Assignee: Hercules Incorporated
    Inventors: William W. Maslanka, Gavin G. Spence