Patents by Inventor Albin F. Turbak
Albin F. Turbak 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).
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Patent number: 5951933Abstract: The invention provides improvements in processes for film and fiber production involving precipitating cellulose from tertiary amine oxide solutions wherein a water soluble polymer is incorporated into the solution in an amount sufficient to slow precipitation of the cellulose during separation of the cellulose from the tertiary amine oxide.Type: GrantFiled: July 24, 1997Date of Patent: September 14, 1999Assignee: Alfacel s.a.Inventors: Alan David Stall, Albin F. Turbak
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Patent number: 5914141Abstract: A method of shirring cellulosic skinless sausage casing comprises applying shirring solution comprising a member selected from the group of proteases and lipases in an amount effective to degrade the stuffed sausage contents adjacent the casing prior to peeling of the casing.Type: GrantFiled: March 11, 1997Date of Patent: June 22, 1999Assignee: Alfacel s.a.Inventors: Alan David Stall, Albin F. Turbak
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Patent number: 5891375Abstract: The invention provides improvements in processes for film and fiber production involving precipitating cellulose from tertiary amine oxide solutions wherein an ester is incorporated into the solution in an amount sufficient to slow precipitation of the cellulose during separation of the cellulose from the tertiary amine oxide.Type: GrantFiled: July 24, 1997Date of Patent: April 6, 1999Assignee: Alfacel s.a.Inventors: Alan David Stall, Albin F. Turbak
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Patent number: 5252375Abstract: A method to impart permanent stain resistance to polyamides, including nylon fiber and fibrous articles such as carpet and carpet tile, that includes treating the fiber with an isocyanate under moderate conditions that do not damage other materials that the fiber is attached to. Nylon carpet and carpet tile treated according to this method are highly suited for commercial use because they retain their stain resistance after repeated washings.Type: GrantFiled: February 27, 1991Date of Patent: October 12, 1993Assignee: Interface, Inc.Inventors: Albin F. Turbak, Rodney A. Smith, Chung-Hsien Zah
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Patent number: 4956121Abstract: Chemically prepared mica and vermiculite materials are described along with the method for preparing them. The mica and vermiculite has dimethylacetamide-lithium chelation complexes at interlayer cationic sites. These materials can be made into suspensions and flocculated.Type: GrantFiled: January 17, 1989Date of Patent: September 11, 1990Assignee: Armstrong World Industries, Inc.Inventors: Thomas M. Tymon, Albin F. Turbak
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Patent number: 4908209Abstract: A biocidal phosphate ester in combination with an inert inorganic or organic particulate or polymeric carrier. The biocidal-carrier composition is useful in extending the effective lifetime of the biocidal phosphate ester when incorporated into a variety of materials including plastics, fibrous materials, and solutions. Applications of the disclosed carrier compounds include preparation of mildew resistant paints and plastics having extended antimicrobial properties despite extensive washing and wear of the surface.Type: GrantFiled: May 5, 1988Date of Patent: March 13, 1990Assignee: Interface, Inc.Inventors: Robert H. McIntosh, Jr., Albin F. Turbak, Robert H. McIntosh, Sr.
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Patent number: 4500546Abstract: A suspension of a finely divided material in a liquid suspending medium which swells cellulose, the suspension containing microfibrillated cellulose in an amount sufficient to produce a stable, homogeneous suspension. The microfibrillated cellulose, a form of cellulose having a very large available surface area per unit of weight, acts to confer, among other benefits, greater stability on the suspension. The suspensions are useful in a variety of end use products including foods, cosmetics, pharmaceuticals, paints and drilling muds.Type: GrantFiled: November 15, 1982Date of Patent: February 19, 1985Assignee: International Telephone and Telegraph CorporationInventors: Albin F. Turbak, Fred W. Snyder, Karen R. Sandberg
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Patent number: 4487634Abstract: A suspension of a finely divided material in a liquid suspending medium which swells cellulose, the suspension containing microfibrillated cellulose in an amount sufficient to produce a stable, homogeneous suspension. The microfibrillated cellulose, a form of cellulose having a very large available surface area per unit of weight, acts to confer, among other benefits, greater stability on the suspension. The suspensions are useful in a variety of end use products including foods, cosmetics, pharmaceuticals, paints and drilling muds.Type: GrantFiled: November 15, 1982Date of Patent: December 11, 1984Assignee: International Telephone and Telegraph CorporationInventors: Albin F. Turbak, Fred W. Snyder, Karen R. Sandberg
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Patent number: 4483743Abstract: Microfibrillated celluloses having properties distinguishable from all previously known celluloses, are produced by passing a liquid suspension of cellulose through a small diameter orifice in which the suspension is subjected to a pressure drop of at least 3000 psig and a high velocity shearing action followed by a high velocity decelerating impact, and repeating the passage of said suspension through the orifice until the cellulose suspension becomes a substantially stable suspension. The process converts the cellulose into microfibrillated cellulose without substantial chemical change of the cellulose starting material.Type: GrantFiled: October 18, 1982Date of Patent: November 20, 1984Assignee: International Telephone and Telegraph CorporationInventors: Albin F. Turbak, Fred W. Snyder, Karen R. Sandberg
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Patent number: 4464287Abstract: A suspension of a finely divided material in a liquid suspending medium which swells cellulose, the suspension containing microfibrillated cellulose in an amount sufficient to produce a stable, homogeneous suspension. The suspensions are oil-in-water emulsion.Type: GrantFiled: November 15, 1982Date of Patent: August 7, 1984Assignee: International Telephone and Telegraph CorporationInventors: Albin F. Turbak, Fred W. Snyder, Karen R. Sandberg
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Patent number: 4452722Abstract: A suspension of a finely divided material in a liquid suspending medium which swells cellulose, the suspension containing microfibrillated cellulose in an amount sufficient to produce a stable, homogeneous suspension. The finely divided materials are hydrophilic polymers.Type: GrantFiled: November 15, 1982Date of Patent: June 5, 1984Assignee: International Telephone and Telegraph CorporationInventors: Albin F. Turbak, Fred W. Snyder, Karen R. Sandberg
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Patent number: 4452721Abstract: A suspension of a finely divided material in a liquid suspending medium which swells cellulose, the suspension containing microfibrillated cellulose in an amount sufficient to produce a stable, homogeneous suspension. The finely divided material is a dense solid such as coal or sand.Type: GrantFiled: November 15, 1982Date of Patent: June 5, 1984Assignee: International Telephone and Telegraph CorporationInventors: Albin F. Turbak, Fred W. Snyder, Karen R. Sandberg
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Patent number: 4405549Abstract: Rayon fibers having high wet modulus, low wet elongation and low caustic solubility are prepared from an unmodified viscose spinning solution by spinning the viscose solution into a zinc-free coagulation bath containing at least 125 g/l of Na.sub.2 SO.sub.4, at least 125 g/l of (NH.sub.4).sub.2 SO.sub.4 and less than 100 g/l of H.sub.2 SO.sub.4 while the bath is at a temperature above 40.degree. C. The coagulated filament is then stretched in a secondary bath maintained at a temperature over 70.degree. C.Type: GrantFiled: July 13, 1981Date of Patent: September 20, 1983Assignee: International Telephone and Telegraph CorporationInventors: Albin F. Turbak, Peter J. Hartmann
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Patent number: 4402899Abstract: Rayon fibers having a C-shaped cross section and characterized by low caustic solubility are prepared from an unmodified viscose spinning solution having a salt index below 14 by spinning the viscose solution into a zinc-free coagulation bath containing at least 100 g/l of Na.sub.2 SO.sub.4, at least 175 g/l of (NH.sub.4).sub.2 SO.sub.4 and more than 100 g/l of H.sub.2 SO.sub.4 while the bath is at a temperature above 40.degree. C. The coagulated filament is then stretched in a secondary bath maintained at a temperature over 70.degree. C.Type: GrantFiled: July 13, 1981Date of Patent: September 6, 1983Assignee: International Telephone and Telegraph CorporationInventors: Peter J. Hartmann, Albin F. Turbak
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Patent number: 4378381Abstract: An edible suspension of a finely divided food material in a liquid suspending medium which swells cellulose, the suspension also containing microfibrillated cellulose in an amount sufficient to produce a stable, homogeneous suspension. The microfibrillated cellulose, a form of cellulose having a very large available surface area per unit of weight, acts to confer, among other benefits, greater stability on the suspension.Type: GrantFiled: October 31, 1980Date of Patent: March 29, 1983Assignee: International Telephone and Telegraph CorporationInventors: Albin F. Turbak, Fred W. Snyder, Karen R. Sandberg
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Patent number: 4374702Abstract: Microfibrillated celluloses having properties distinguishable from all previously known celluloses, are produced by passing a liquid suspension of cellulose through a small diameter orifice in which the suspension is subjected to a pressure drop of at least 3000 psig and a high velocity shearing action followed by a high velocity decelerating impact, and repeating the passage of said suspension through the orifice until the cellulose suspension becomes a substantially stable suspension. The process converts the cellulose into microfibrillated cellulose without substantial chemical change of the cellulose starting material.Type: GrantFiled: October 22, 1981Date of Patent: February 22, 1983Assignee: International Telephone and Telegraph CorporationInventors: Albin F. Turbak, Fred W. Snyder, Karen R. Sandberg
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Patent number: 4352770Abstract: Cellulose is activated by penetration of the cellulose with a polar medium and mixed at a temperature at which no significant degradation occurs with an amide selected from the group consisting of dimethylacetamide, 1-methyl-2-pyrrolidinone and mixtures thereof and from 3 to 15% by weight of lithium chloride. The cellulose is then dissolved in the amide and lithium chloride in the substantial absence of any polar medium other than the amide. Shaped cellulosic products may be formed by reconstituting the cellulose in fiber, sheet or other form.Type: GrantFiled: May 1, 1981Date of Patent: October 5, 1982Assignee: International Telephone and Telegraph CorporationInventors: Albin F. Turbak, Adel El-Kafrawy, Fred W. Snyder, Jr., Andrew B. Auerbach
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Patent number: 4341807Abstract: A food product containing microfibrillated cellulose is prepared by mixing together an edible liquid which swells cellulose, a food additive and fibrous cellulose to form a liquid suspension. The suspension is repeatedly passed through a small diameter orifice in which the mixture is subjected to a pressure drop of at least 3000 psig and a high velocity shearing action followed by a high velocity decelerating impact. The process converts the cellulose into microfibrillated cellulose and forms a stable homogeneous suspension of the microfibrillated cellulose, liquid and food additive.Type: GrantFiled: October 31, 1980Date of Patent: July 27, 1982Assignee: International Telephone and Telegraph CorporationInventors: Albin F. Turbak, Fred W. Snyder, Karen R. Sandberg
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Patent number: 4302252Abstract: Cellulose is activated by penetration of the cellulose with a polar medium and mixed at a temperature at which no significant degradation occurs with an amide selected from the group consisting of dimethylacetamide, 1-methyl-2-pyrrolidinone and mixtures thereof and from 3 to 15% by weight of lithium chloride. The cellulose is then dissolved in the amide and lithium chloride in the substantial absence of any polar medium other than the amide. Shaped cellulosic products may be formed by reconstituting the cellulose in fiber, sheet or other form.Type: GrantFiled: April 30, 1980Date of Patent: November 24, 1981Assignee: International Telephone and Telegraph Corp.Inventors: Albin F. Turbak, Adel El-Kafrawy, Fred W. Snyder, Jr., Andrew B. Auerbach
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Patent number: 4120836Abstract: The evolution of formaldehyde from shaped cellulose acetayte articles containing methylolated melamine or guanamine polymers is reduced by adding to the solutions from which the cellulose acetate article is regenerated, from 1 to 20% by weight based on the weight of the methylolated polymer of a cyclic urea compound.Type: GrantFiled: September 14, 1977Date of Patent: October 17, 1978Assignee: International Telephone and Telegraph CorporationInventors: Andrew B. Auerbach, John P. Thelman, Albin F. Turbak