With Organic Compound Containing Sulfur Or Nitrogen Patents (Class 106/208.4)
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Patent number: 8357237Abstract: Crosslinking systems suitable for use in a polymer melt composition wherein the polymer melt composition comprises a hydroxyl polymer; polymeric structures made from such polymer melt compositions; and processes/methods related thereto are provided.Type: GrantFiled: January 10, 2012Date of Patent: January 22, 2013Assignee: The Procter & Gamble CompanyInventors: Stephen Wayne Heinzman, Linda Evers Smith, Gregory Charles Gordon, Larry Neil Mackey, John Gerhard Michael, Mark Ryan Richards
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Patent number: 7381300Abstract: The present invention relates to a process for applying optical brightening agent (OBA) to a sheet of paper or paperboard substrate. The process comprises applying the composition comprising a cooked starch and a powdered optical brightener to at least one surface of a paper or paperboard substrate at the size press in a paper or paperboard manufacturing process to form a sized paper or paperboard substrate; and drying the sized paper or paperboard substrate to form a dried sized paper or paperboard substrate.Type: GrantFiled: October 31, 2006Date of Patent: June 3, 2008Assignee: International Paper CompanyInventors: Benny J Skaggs, Chris Wilson
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Patent number: 7255732Abstract: Starch can be gelatinised more efficiently by a thermomechanical treatment, if a dialdehyde polysaccharide with a relatively low degree of oxidation is added to the starch. This thermomechanical treatment can be carried out at a temperature below 115 DEG C., or even below 100 DEG C., and with a high throughput rate. With this treatment a granulate or other semi-finished product is obtained that can be shaped to produce an article that has excellent dimensional stability in water. By adding dialdehyde polysaccharide with a low degree of oxidation to starch it is possible to blow transparent films based on thermoplastic starch which have improved mechanical properties.Type: GrantFiled: September 29, 2003Date of Patent: August 14, 2007Assignee: Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek TnoInventors: Sabine Fischer, Eric G. M. Craenmehr, Jan J. De Vlieger, Theodoor M. Slaghek
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Patent number: 7025821Abstract: Non-thermoplastic starch fibers having no melting point and having apparent peak wet tensile stress greater than about 0.2 MegaPascals (MPa). The fibers can be manufactured from a composition comprising a modified starch and a cross-linking agent. The composition can have a shear viscosity from about 1 Pascal·Seconds to about 80 Pascal·Seconds and an apparent extensional viscosity in the range of from about 150 Pascal·Seconds to about 13,000 Pascal·Seconds. The composition can comprise from about 50% to about 75% by weight of a modified starch; from about 0.1% to about 10% by weight of an aldehyde cross-linking agent; and from about 25% to about 50% by weight of water. Prior to cross-linking, the modified starch can have a weight average molecular weight greater than about 100,000 g/mol.Type: GrantFiled: October 7, 2004Date of Patent: April 11, 2006Assignee: The Procter & Gamble CompanyInventors: Larry Neil Mackey, Gregory Charles Gordon, Lora Lee Buchanan, Stephen Wayne Heinzman, Paul Arlen Forshey
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Patent number: 6896725Abstract: The invention concerns the use of a water-soluble or water-dispersible polymer having a molecular weight of at least 800, containing at least 5 aldehyde groups per molecule and at least 1 carboxyl group per molecule, the ratio of aldehyde groups to carboxyl groups being higher than 0.75:1, as a wet strength additive. The invention also discloses novel cationic derivatives thereof.Type: GrantFiled: April 25, 2003Date of Patent: May 24, 2005Assignee: SCA Hygiene Products Zeist B.V.Inventors: Jeffrey Wilson Thornton, Dorine Lisa Van Brussel-Verraest, Arie Besemer, Sussan Sandberg
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Patent number: 6802895Abstract: Non-thermoplastic starch fibers having no melting point and having apparent peak wet tensile stress greater than about 0.2 MegaPascals (MPa). The fibers can be manufactured from a composition comprising a modified starch and a cross-linking agent. The composition can have a shear viscosity from about 1 Pascal·Seconds to about 80 Pascal·Seconds and an apparent extensional viscosity in the range of from about 150 Pascal·Seconds to about 13,000 Pascal·Seconds. The composition can comprise from about 50% to about 75% by weight of a modified starch; from about 0.1% to about 10% by weight of an aldehyde cross-linking agent; and from about 25% to about 50% by weight of water. Prior to cross-linking, the modified starch can have a weight average molecular weight greater than about 100,000 g/mol.Type: GrantFiled: December 19, 2003Date of Patent: October 12, 2004Assignee: The Procter & Gamble CompanyInventors: Larry Neil Mackey, Gregory Charles Gordon, Lora Lee Buchanan, Stephen Wayne Heinzman, Paul Arlen Forshey
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Patent number: 6723160Abstract: Non-thermoplastic starch fibers having no melting point and having apparent peak wet tensile stress greater than about 0.2 MegaPascals (MPa). The fibers can be manufactured from a composition comprising a modified starch and a cross-linking agent. The composition can have a shear viscosity from about 1 Pascal·Seconds to about 80 Pascal·Seconds and an apparent extensional viscosity in the range of from about 150 Pascal·Seconds to about 13,000 Pascal·Seconds. The composition can comprise from about 50% to about 75% by weight of a modified starch; from about 0.1% to about 10% by weight of an aldehyde cross-linking agent; and from about 25% to about 50% by weight of water. Prior to cross-linking, the modified starch can have a weight average molecular weight greater than about 100,000 g/mol.Type: GrantFiled: February 1, 2002Date of Patent: April 20, 2004Assignee: The Procter & Gamble CompanyInventors: Larry Neil Mackey, Gregory Charles Gordon, Lora Lee Buchanan, Stephen Wayne Heinzman, Paul Arlen Forshey
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Patent number: 6710175Abstract: According to the present disclosure, starch/polymer combinations are provided. The preferred starch/polymer combinations are usable as paper additives, in the wet end of a papermaking process. Typical and preferred starch/polymer combinations of this type, result from combining a starch, having a polymer reactive carbonyl functionality, with a polymer, having a carbonyl reactive functionality, under conditions that allow for covalent interaction between the two. Typically usable components comprise oxidized starch and polymer having reactive primary or reactive secondary amine groups. Also provided are methods of preparing such combinations, methods of use, preferred papers including such combinations, and, analytical techniques usable in preparation of such combinations.Type: GrantFiled: August 31, 2001Date of Patent: March 23, 2004Inventors: Kevin Ray Anderson, Anton Esser, Lawrence Edward Fosdick, Ki-Oh Hwang, Norbert Mahr, John Thomas McDonald, Jr., Dogan Sahin Sivasligil, Andreas Stange, Sarah Veelaert, Martin Wendker
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Patent number: 6369119Abstract: A cationic rosin-in-water emulsion which has been prepared without intermediate isolation of an anionic rosin-in-water emulsion and in which the dispersed rosin phase is stabilized by a cationic polymer derived from a degraded starch, said polymer having a degree of substitution of at least 0.15 quaternary groups per glucose unit.Type: GrantFiled: April 7, 2000Date of Patent: April 9, 2002Assignee: Rasio Chemcials UK LtdInventors: John C. Roberts, Martin Phillipson