Patents Represented by Attorney, Agent or Law Firm Laurelee A. Duncan, Esq.
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Patent number: 6540876Abstract: This invention pertains to the use of compounds containing amide or imide type functional groups to increase the rate of nitroxide mediated oxidation of alcohols, particularly primary and secondary alcohols. While suitable for oxidation of alcohol groups on a variety of substrates, it is particularly useful to oxidize cellulose, cellulose pulp or cellulose fiber such that it is commercially compatible with the traditional paper making process. Such co-catalysts may be used to increase the absolute amount of aldehyde groups on cellulose, cellulose pulp or cellulose fiber, thereby further increasing the inherent wet strength, temporary wet strength, and dry strength of paper made with such cellulose, cellulose pulp or cellulose fiber.Type: GrantFiled: May 19, 2000Date of Patent: April 1, 2003Assignee: National Starch and Chemical Ivnestment Holding CorporationInventors: A. Levent Cimecioglu, John S. Thomaides, Kraig A. Luczak, Danielle E. Harkins
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Patent number: 6488980Abstract: Compositions, particularly foodstuffs, were thickened by the inclusion of an effective amount of a stabilized waxy potato starch, particularly a stabilized, crosslinked waxy potato starch, more particularly a hydroxypropylated waxy potato distarch phosphate. Compositions which include the starch may be thickened using less starch than if other starches were used. Foodstuffs prepared using the starch were improved in that they have better flavor, texture, and appearance.Type: GrantFiled: September 23, 1997Date of Patent: December 3, 2002Assignee: National Starch and Chemical Investment Holding CorporationInventors: Roger Jeffcoat, William R. Mason, Joseph L. Emling, Chung-Wai Chiu
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Patent number: 6451121Abstract: Thermally-inhibited starches and flours which are functionally equivalent to chemically-crosslinked starches are prepared by a process which comprises the steps of dehydrating a granular starch or flour to anhydrous or substantially anhydrous (<1% moisture) and heat treating the dehydrated starch or flour for a time and at a temperature sufficient to inhibit the starch, (e.g., 120-180° C. for up to 20 hours). Preferably the pH of the starch is adjusted to neutral or greater (e.g., pH 8-9.5) prior to the dehydration. The dehydration may be a thermal dehydration carried out simultaneously with the heat treatment or a non-thermal dehydration carried out by extraction with a solvent (e.g., ethanol) or by freeze drying.Type: GrantFiled: March 2, 2001Date of Patent: September 17, 2002Assignee: National Starch and Chemical Investment Holding CorporationInventors: Chung-Wai Chiu, Eleanor Schiermeyer, David J. Thomas, Manish B. Shah, Douglas J. Hanchett, Roger Jeffcoat
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Patent number: 6447615Abstract: The present invention is directed to sago fluidity starch and the use thereof. Such fluidity starches exhibit exceptionally fast gelling properties, high gel strengths, and exceptional elasticity. These properties allow for significantly reduced processing times, including reduced hold times. Further, the higher gel strength allows for reduced starch levels without loss of final product gel strength integrity or texture.Type: GrantFiled: August 10, 1999Date of Patent: September 10, 2002Assignee: National Starch and Chemical Investment Holding CorporationInventors: Douglas J. Hanchett, Tunyawat Kasemsuwan, Joseph Light, Ai-Tsing Tan
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Patent number: 6428836Abstract: The present invention is directed to a process of preparing starch phosphate monoesters, optionally in the presence of oligosaccharides, having improved reaction efficiency and reduced side reactions. The invention also includes the improved starch phosphate monoester products, characterized by high viscosity and low level of residual salts, their use in food and the enhanced food compositions prepared from them.Type: GrantFiled: August 7, 2000Date of Patent: August 6, 2002Assignee: National Starch and Chemical Investment Holding CorporationInventors: Wolfgang Bindzus, Paul A. Altieri, James J. Kasica, Peter T. Trzasko
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Patent number: 6413372Abstract: Paper having improved retention properties made by the addition to the papermaking system of a combination of cationic starch and starch phosphate, the starch combination having a select net zeta potential.Type: GrantFiled: August 7, 2000Date of Patent: July 2, 2002Assignee: National Starch and Chemical Investment Holding CorporationInventors: Walter Maliczyszyn, Wolfgang Bindzus, Paul A. Altieri
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Patent number: 6379447Abstract: An aqueous, light weight paper laminating adhesive comprising a continuous aqueous phase of from about 15 to 50% by weight of polysaccharide material dispersed in water, the continuous phase polysaccharide material having a zero-shear viscosity of greater than 0.07 Pa·s when measured at 26% (+/−1% solids) and a shear rate of 0.1s−1; a shear-thinning index of 0.90 to 1.1; and bleed time of greater than 15 seconds. Also disclosed is another adhesive composition, which is particularly useful in non-contact spay applications and comprises the continuous phase polysaccharide phase described above as well as a second component comprising a water swellable, insoluble polysaccharide particulate phase.Type: GrantFiled: April 5, 1999Date of Patent: April 30, 2002Assignee: National Starch and Chemical Investment Holding CorporationInventors: James L. Eden, Eric M. Weisser, Daniel B. Solarek
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Patent number: 6372361Abstract: A paper coating comprising a hydrophobically modified starch having an amylose content of less than about 40% by weight. The coating provides the paper product with oil and grease resistant properties.Type: GrantFiled: July 7, 2000Date of Patent: April 16, 2002Assignee: National Starch and Chemical Investment Holding CorporationInventors: Victor L. Mackewicz, Robert L. Billmers, Douglas J. Hanchett
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Patent number: 6365002Abstract: The use in papermaking of an amphoteric starch additive which contains a phosphate functional group and is made under anhydrous conditions while in a fluidized state, provides advantageous paper properties and improved wet end performance.Type: GrantFiled: August 7, 2000Date of Patent: April 2, 2002Assignee: National Starch and Chemical Investment Holding CorporationInventors: Wolfgang Bindzus, Paul A. Altieri
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Patent number: 6284359Abstract: A biodegradable, water dispersible shaped core product useful in winding or rolling and storage of paper goods is provided by extruding starch which has a particle size of 800 to 1200 microns into an expanded, closed cell starch product.Type: GrantFiled: September 29, 1997Date of Patent: September 4, 2001Assignee: National Starch and Chemical Company Investment Holding CorporationInventors: Richard R. Rose, Beth C. Tormey, Paul A. Altieri
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Patent number: 6228126Abstract: Paper comprising aldehyde modified cellulose pulp having selected aldehyde content. Another embodiment involves a method of preparing celullose aldehydes using selective oxidation with a limited amount of oxidant and a nitroxyl radical mediator and defined reaction conditions to provide oxidized cellulose material with effective aldehyde content making it particularly suitable for use in making paper with desirable wet strength, temporary wet strength and dry strength properties.Type: GrantFiled: August 17, 1999Date of Patent: May 8, 2001Assignee: National Starch and Chemical Investment Holding CorporationInventors: A. Levent Cimecioglu, Danielle E. Harkins