Patents Assigned to National Starch & Chemical Corporation
  • Patent number: 4923695
    Abstract: This invention prevents two series of novel hair fixing compositions, the first comprising copolymers of acrylates, N-substituted acrylamides and acrylic acid; and the second comprising copolymers of vinyl acetate or propionate, vinyl esters of .alpha.-branched carboxylic acids, and alkyl maleates. Such materials, when neutralized with NaOH, KOH, or mixtures of these bases with certain long chain amines, exhibit an enhanced tolerance of non-halogenated hydrocarbons and are particularly useful.
    Type: Grant
    Filed: March 6, 1989
    Date of Patent: May 8, 1990
    Assignee: National Starch and Chemical Corporation
    Inventors: Frank A. Nowak, Jr., Albert L. Micchelli, William M. Rouse, III
  • Patent number: 4915845
    Abstract: Water soluble polymers comprising at least one mole percent of a recurring monomer unit represented by the chemical structure ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are independently hydrogen or C.sub.1 -C.sub.6 alkyl; and X is hydrogen, an alkali or alkaline earth metal or ammonium are disclosed.
    Type: Grant
    Filed: March 16, 1989
    Date of Patent: April 10, 1990
    Assignee: National Starch and Chemical Corporation
    Inventors: John C. Leighton, Michael J. Sanders
  • Patent number: 4916183
    Abstract: A thickened aqueous copolymer solution useful for thickening and improving the properties of latex systems comprising a copolymer having as monomeric units: about 79-99 percent of a (meth)acrylic acid salt of sodium, potassium, or ammonium; about 0-20 percent of (meth)acrylic acid; about 0--20 percent of a lower alkyl ester of (meth)acrylic acid; about 1-21 percent of surfactant units selected from the urea reaction product of a monoethylenically unsaturated monoisocyanate with a nonionic surfactant having amine functionality; and about 0-1 percent of a copolymerizable polyethylenically unsatured monomer, said percentages being by weight based on the total weight of monomeric units in said copolymer.
    Type: Grant
    Filed: March 2, 1989
    Date of Patent: April 10, 1990
    Assignee: National Starch and Chemical Corporation
    Inventors: Milagros C. Barron, Ronald L. Swope, John M. Wilkerson, III, Charles G. Ruffner
  • Patent number: 4911960
    Abstract: Wet laminating adhesives capable of withstanding the stresses encountered during heat sealing operations are prepared from emulsion copolymers consisting essentially of 45 to 80% by weight of a vinyl ester of an alkanoic acid, 10 to 30% ethylene, 5 to 30% of dialkyl maleate, 0.5 to 2% of an N-methylol containing comonomer and 0.5 to 4% of an ethylenically unsaturated mono- or di-carboxylic acid. These specific emulsion copolymers are prepared utilizing standard emulsion polymerization procedures with hydroxyethylcellulose or polyvinyl alcohol as a protective colloid. The emulsion polymers thus produced provide superior wet laminating adhesive properties for use in substrates which are to be formed into microwavable packages or bags.
    Type: Grant
    Filed: January 19, 1988
    Date of Patent: March 27, 1990
    Assignee: National Starch and Chemical Corporation
    Inventors: Paul R. Mudge, James L. Walker, Terence M. Barnhart
  • Patent number: 4912209
    Abstract: This invention presents starch-based alkaline corrugating adhesives having improved green bond strength due to the use of undried starch as the raw starch component in the adhesive. Such adhesives can be used in corrugation processes at much higher corrugator running speeds than the conventionally employed adhesives.
    Type: Grant
    Filed: June 15, 1988
    Date of Patent: March 27, 1990
    Assignee: National Starch and Chemical Corporation
    Inventors: Craig Leake, Michael Foran, Jeffrey G. Atkinson
  • Patent number: 4908268
    Abstract: Adhesive compositions having a Tg of -45.degree. to -25.degree. C. suitable for application to plasticized polyvinyl chloride comprising 25 to 40% by weight of a vinyl ester of a alkanoic acid; 10-30% by weight ethylene; 20 to 30% by weight of di-2-ethylhexyl maleate or fumarate; 20 to 30% by weight of 2-ethylhexyl acrylate; and 1 to 10% by weight of a monocarboxylic acid.
    Type: Grant
    Filed: March 17, 1988
    Date of Patent: March 13, 1990
    Assignee: National Starch and Chemical Corporation
    Inventor: Paul R. Mudge
  • Patent number: 4906397
    Abstract: This invention provides detergent compositions utilizing divinyl ether/maleic anhydride polymers as detergent builders or co-builders. This invention also provides novel polymers of divinyl ether, maleic anhydride and at least one copolymerizable comonomer, selected from the group consisting of alkyl ethers, alkyl acrylates, carboxyalkyl ethers, vinyl esters of C.sub.1 and C.sub.3 or greater carboxylic acids, carboxylic acids, dicarboxylic acids and their esters, and olefins, and detergent compositions utilizing these novel polymer compositions as detergent builders.
    Type: Grant
    Filed: September 15, 1988
    Date of Patent: March 6, 1990
    Assignee: National Starch and Chemical Corporation
    Inventors: John C. Leighton, Carmine P. Iovine
  • Patent number: 4902370
    Abstract: This invention presents a series of synthetic based cold seal adhesives which are capable of forming a strong bond at room temperature, yet which may be reeled up without blocking and stored for extended periods of time. Such adhesives can be used in place of the natural rubber based cold seal adhesives currently used, and thus, can be employed in any packaging application where cold seal properties are desirable.
    Type: Grant
    Filed: August 17, 1989
    Date of Patent: February 20, 1990
    Assignee: National Starch and Chemical Corporation
    Inventors: Richard A. Dust, Peter Causton
  • Patent number: 4898677
    Abstract: The deposition of scale-imparting precipitates in aqueous media containing significant amounts of barium sulfate and other scale forming salts (e.g., calcium carbonate and calcium sulfate) is inhibited and controlled by adding a scale-inhibiting amount of a water-soluble acrylic acid copolymer with up to about 30% by weight of a vinyl sulfonate, with the copolymer having a weight average molecular weight of below about 90,000.
    Type: Grant
    Filed: November 10, 1986
    Date of Patent: February 6, 1990
    Assignee: National Starch and Chemical Corporation
    Inventor: Ingrid E. Brase
  • Patent number: 4892917
    Abstract: Adhesive compositions having a Tg of -45.degree. to -25.degree. C. suitable for application to plasticized polyvinyl chloride comprising 30-70% by weight of a vinyl ester of a alkenoic acid; 10-30% by weight ethylene; 20-40% by weight of a di-2-ethylhexyl maleate or di-n-octyl maleate or the corresponding fumarate; and 1 to 10% by weight of a mono-carboxylic acid.
    Type: Grant
    Filed: February 8, 1988
    Date of Patent: January 9, 1990
    Assignee: National Starch and Chemical Corporation
    Inventor: Paul R. Mudge
  • Patent number: 4892785
    Abstract: Heat resistant binders for flexible nonwoven mats may be prepared using an emulsion polymer comprising 100 parts by weight of acrylate or styrene/acrylate monomers, 3 to 6 parts of a blocked, N-methylol containing comonomer, 0 to 3 parts of a water soluble non-blocked N-methylol containing comonomer and 0 to 5 parts of a multifunctional comonomer. The use of the blocked N-methylol containing comonomer permits the incorporation into the latex binders of higher levels of N-methylol functionality with consequent increase in heat resistance. As such, the binders are useful in the formation of heat resistant flexible mats for use in roofing, flooring and filtering materials.
    Type: Grant
    Filed: April 10, 1989
    Date of Patent: January 9, 1990
    Assignee: National Starch and Chemical Corporation
    Inventors: Ronald Pangrazi, James L. Walker
  • Patent number: 4892898
    Abstract: Water soluble polymers comprising at least one mole percent of a recurring monomer unit represented by the chemical structure ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are independently hydrogen or C.sub.1 -C.sub.6 alkyl; and X is hydrogen, an alkali or alkaline earth metal or ammonium are disclosed.
    Type: Grant
    Filed: January 21, 1988
    Date of Patent: January 9, 1990
    Assignee: National Starch and Chemical Corporation
    Inventors: John C. Leighton, Michael J. Sanders
  • Patent number: 4889884
    Abstract: This invention presents a series of synthetic based cold seal adhesives which are capable of forming a strong bonds at room temperature, yet which may be reeled up without blocking and stored for extended periods of time. Such adhesives can be used in place of the natural rubber based cold seal adhesives currently used, and thus, can be employed in any packaging application where cold seal properties are desirable.
    Type: Grant
    Filed: April 18, 1988
    Date of Patent: December 26, 1989
    Assignee: National Starch and Chemical Corporation
    Inventors: Richard A. Dust, Peter Causton
  • Patent number: 4888250
    Abstract: A self-crosslinking polymer consisting essentially of at least 1 mole % of a halohydrin monomer, at least 1 mole % of a tertiary or secondary amine salt monomer, and 0-98 mole % of a vinyl polymerizable monomer other than the halohydrin or amine salt monomers crosslinks, in the presence of a base, at a lower temperature than a polymer without the tertiary or secondary amine salt monomer. Typical polymers contain 3-chloro-2-hydroxypropyl acrylate or methacrylate; diallylamine hydrochloride, N-isopropyl methacrylamide hydrogen sulfate, dimethylaminopropyl methacrylamide, or dimethylaminoethyl methacrylate hydrochloride or acetate; and optionally other monomers such as a vinyl ester, an acrylate, or a dialkyl diallyl ammonium chloride. When the polymers contain a conductive cationic monomer such as dimethyl diallyl ammonium chloride, they are useful as electroconductive coatings for paper substrates.
    Type: Grant
    Filed: August 31, 1988
    Date of Patent: December 19, 1989
    Assignee: National Starch and Chemical Corporation
    Inventors: Wen B. Chiao, Carmine P. Iovine, Samuel Gold
  • Patent number: 4886678
    Abstract: This invention provides a method for manufacture of jelly gum confections at lower temperatures utilizing conventional confectionery formulations containing starch which has been debranched by treatment with an endo-alpha-1,6-D-glucanohydrolase to provide lower hot viscosity and improved set time, processing conditions and gel quality. The method comprises the steps of blending the debranched starch with sweetener(s), water and other confectionery ingredients, heating the mixture to gelatinize the starch, and forming the confections. This invention also provides confections manufactured by this method.
    Type: Grant
    Filed: November 4, 1988
    Date of Patent: December 12, 1989
    Assignee: National Starch and Chemical Corporation
    Inventors: Chung-Wai Chiu, James P. Zallie
  • Patent number: 4876336
    Abstract: Improved amphoteric starch derivatives containing tertiary amino or quaternary ammonium groups and anionic phosphate groups are disclosed. The derivatives which are defined by a minimum bound phosphorus content, a minimum viscosity and other criteria have use as wet-end additives and provide improved drainage properties in the manufacture of paper.
    Type: Grant
    Filed: May 18, 1987
    Date of Patent: October 24, 1989
    Assignee: National Starch and Chemical Corporation
    Inventors: Daniel B. Solarek, Teresa A. Dirscherl, Henry R. Hernandez, Wadym Jarowenko
  • Patent number: 4874628
    Abstract: Pregelatinized high amylose starches are useful in processing cast jelly gum confectionaries. The starch has an amylose content of at least 40% and it may be used alone or in combination with a converted starch. The starch is pregelatinized by spray-drying using a novel continuous coupled jet-cooking/sray-drying process or simultaneous atomization/spray-drying process or by drum-drying after fully dispersing the starch. The confectionary can be cooked at a lower temperature than was possible using prior art starches and still provide confectionaries with desirable characteristics.
    Type: Grant
    Filed: September 12, 1988
    Date of Patent: October 17, 1989
    Assignee: National Starch and Chemical Corporation
    Inventors: James L. Eden, James J. Kasica, James P. Zallie
  • Patent number: 4874804
    Abstract: Hot melt packaging adhesive compositions consisting essentially of 35 to 45% by weight of an ethylene n-butyl acrylate copolymer containing 25-45% by weight, preferably 30 to 40% n-butyl acrylate and having a melt index of at least 50; 35 to 55% of a terpene phenolic tackifier; and 10 to 20% by weight of a high melting synthetic wax provide adhesives characterized by an excellent balance of high and low temperature performance without sacrifice to machinability or thermal stability.
    Type: Grant
    Filed: August 24, 1988
    Date of Patent: October 17, 1989
    Assignee: National Starch and Chemical Corporation
    Inventors: Francis X. Brady, Thomas F. Kauffman
  • Patent number: 4872951
    Abstract: This invention presents a series of blends of ASA-treated and cationic starches for use as external sizes of paper and paperboard products. The blends contain at least 30% (by wt) of the ASA-treated starch, which is a monoester of the starch and an alkyl or alkenyl succinate and, optionally, from about 0.5 to about 5% (by weight based on the starch) of an Al.sup.3+ salt.
    Type: Grant
    Filed: July 13, 1988
    Date of Patent: October 10, 1989
    Assignee: National Starch and Chemical Corporation
    Inventors: Walter Maliczyszyn, Henry R. Hernandez
  • Patent number: 4871572
    Abstract: The present invention provides an imitation oriental noodle consisting essentially of starch and water, wherein the mung bean starch present in the noodles is replaced with at least about 30% by weight of a crosslinked potato starch having a sediment volume of 2-16 ml or a crosslinked sweet potato starch having a sediment volume of 2-4 ml, the noodle containing the crosslinked potato or sweet potato starch replacement being comparable to the noodle containing 100% mung bean starch. For 100% replacement crosslinked potato starches having a sediment volume of 3-11 ml are preferred.
    Type: Grant
    Filed: December 16, 1987
    Date of Patent: October 3, 1989
    Assignee: National Starch and Chemical Corporation
    Inventors: Chung-Wai Chiu, Hunter Chua