Patents by Inventor Thomas S. Garrett
Thomas S. Garrett 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: 9212290Abstract: The present invention relates to substituted cellulose acetates and methods of use thereof. One embodiment of the present invention provides a composition having a substituted cellulose acetate having a polar substituent that has an oxygen atom covalently bonded to a nonmetal selected from the group of sulfur, phosphorus, and boron; where the nonmetal is present in at least about 0.01% by weight of the substituted cellulose acetate.Type: GrantFiled: January 27, 2012Date of Patent: December 15, 2015Assignee: Celanese Acetate LLCInventors: Michael T. Combs, Thomas S. Garrett
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Patent number: 9179708Abstract: A system for producing porous masses may include a mold cavity disposed along the material path, at least one hopper before at least a portion of the mold cavity for feeding a matrix material to the material path, a heat source in thermal communication with at least a first portion of the material path, and a cutter disposed along the material path after the first portion of the material path.Type: GrantFiled: April 1, 2013Date of Patent: November 10, 2015Assignee: Celanese Acetate LLCInventors: Thomas S. Garrett, Zeming Gou, Lawton E. Kizer, Raymond M. Robertson
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Patent number: 9167830Abstract: The present invention relates to substituted cellulose acetates and methods of use thereof. One embodiment of the present invention provides a drilling fluid having a base fluid and a viscosifier having a substituted cellulose acetate having a polar substituent that comprises an oxygen atom covalently bonded to a nonmetal selected from the group of sulfur, phosphorus, boron, and chlorine; where the nonmetal is present in at least about 0.01% by weight of the substituted cellulose acetate.Type: GrantFiled: January 27, 2012Date of Patent: October 27, 2015Assignee: Celanese Acetate LLCInventors: Michael T. Combs, Thomas S. Garrett
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Patent number: 9149069Abstract: A system for producing porous masses may include a mold cavity disposed along the material path, at least one hopper before at least a portion of the mold cavity for feeding a matrix material to the material path, a heat source in thermal communication with at least a first portion of the material path, and a cutter disposed along the material path after the first portion of the material path.Type: GrantFiled: April 1, 2013Date of Patent: October 6, 2015Assignee: Celanese Acetate LLCInventors: Thomas S. Garrett, Zeming Gou, Lawton E. Kizer, Raymond M. Robertson
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Patent number: 9138017Abstract: A system for producing porous masses may include a mold cavity disposed along the material path, at least one hopper before at least a portion of the mold cavity for feeding a matrix material to the material path, a heat source in thermal communication with at least a first portion of the material path, and a cutter disposed along the material path after the first portion of the material path.Type: GrantFiled: October 14, 2011Date of Patent: September 22, 2015Assignee: CELANESE ACETATE LLCInventors: Thomas S. Garrett, Zeming Gou, Lawton E. Kizer, Raymond M. Robertson
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Patent number: 9027566Abstract: A system for producing porous masses may include a mold cavity disposed along the material path, at least one hopper before at least a portion of the mold cavity for feeding a matrix material to the material path, a heat source in thermal communication with at least a first portion of the material path, and a cutter disposed along the material path after the first portion of the material path.Type: GrantFiled: April 1, 2013Date of Patent: May 12, 2015Assignee: Celanese Acetate LLCInventors: Thomas S. Garrett, Zeming Gou, Lawton E. Kizer, Raymond M. Robertson
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Patent number: 9023757Abstract: The present invention relates to substituted cellulose acetates and methods of use thereof. One embodiment of the present invention provides a coating having a substituted cellulose acetate having a polar substituent that has an oxygen atom covalently bonded to a nonmetal selected from the group of sulfur, phosphorus, and boron; wherein the nonmetal is present in at least about 0.01% by weight of the substituted cellulose acetate.Type: GrantFiled: January 27, 2012Date of Patent: May 5, 2015Assignee: Celanese Acetate LLCInventors: Michael T. Combs, Thomas S. Garrett
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Publication number: 20150037377Abstract: The present invention relates to substituted cellulose acetates and methods of use thereof. One embodiment of the present invention provides a coating having a substituted cellulose acetate having a polar substituent that has an oxygen atom covalently bonded to a nonmetal selected from the group of sulfur, phosphorus, and boron; wherein the nonmetal is present in at least about 0.01% by weight of the substituted cellulose acetate.Type: ApplicationFiled: October 16, 2014Publication date: February 5, 2015Applicant: Celanese Acetate LLCInventors: Michael T. Combs, Thomas S. Garrett
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Patent number: 8920520Abstract: Processing of cellulose, and more particularly, fiber opening and downstream processing and chemistry are provided. A process includes moistening a cellulose sheet stock to a water content in a range from about 20% to about 50%, attriting the moistened cellulose sheet to a wet pulp, flash drying the wet pulp to a floccule of cellulose having a moisture content from about 4% to about 8%, and esterifying the floccule of cellulose to provide a cellulose ester product.Type: GrantFiled: March 1, 2012Date of Patent: December 30, 2014Assignee: Celanese Acetate LLCInventors: Thomas S. Garrett, Lawton E. Kizer, Henry P. Stogner
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Publication number: 20140326421Abstract: A process for treating a cellulosic material comprising extracting the cellulosic material with an extractant to selectively extract hemicellulose therefrom and separating the extracted hemicellulose to form a cellulosic product comprising less hemicellulose than the cellulosic material. The extractant comprises a cellulose solvent and a co-solvent. The cellulosic product advantageously retains its cellulosic fiber morphology. The processes involve separating and recovering the hemicellulose and separating and recycling various process streams employed in the process.Type: ApplicationFiled: May 2, 2014Publication date: November 6, 2014Applicant: Celanese International CorporationInventors: Denis G. Fallon, Thomas S. Garrett, Lawton Kizer, Bin Li, Rongfu Li, Jay Mehta, Tianshu Pan, Xiaoyan Tu, Leslie Allen, Dinesh Arora, Prabuddha Bansal, Michael T. Combs
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Publication number: 20140315720Abstract: A method for producing a polysaccharide ester microsphere may include forming a polysaccharide ester product from a polysaccharide synthesis, wherein the polysaccharide ester product comprises a polysaccharide ester and a solvent; diluting the polysaccharide ester product, thereby yielding a polysaccharide ester dope; and forming a plurality of polysaccharide ester microspheres from the polysaccharide ester dope. Suitable polysaccharides may include, but are not limited to, starch, cellulose, hemicellulose, algenates, chitosan, and any combination thereof. Esters thereof may be organic esters (e.g., acetate and the like), inorganic esters (e.g., sulfonates and the like), or combinations thereof. Further, the solids conent of the polysaccharide ester dope, in some instances, may be greater than about 16 wt %.Type: ApplicationFiled: April 4, 2014Publication date: October 23, 2014Applicant: Celanese Acetate LLCInventors: Denis G. Fallon, Thomas S. Garrett, Lawton E. Kizer, Karen L. Zazzara, Michael T. Combs, Richard K. Johnson, Gary Dehart
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Publication number: 20140113826Abstract: A method for producing a polysaccharide ester microsphere may include forming a polysaccharide ester product from a polysaccharide synthesis, wherein the polysaccharide ester product comprises a polysaccharide ester and a solvent; diluting the polysaccharide ester product, thereby yielding a polysaccharide ester dope; and forming a plurality of polysaccharide ester microspheres from the polysaccharide ester dope. Suitable polysaccharides may include, but are not limited to, starch, cellulose, hemicellulose, algenates, chitosan, and any combination thereof. Esters thereof may be organic esters (e.g., acetate and the like), inorganic esters (e.g., sulfonates and the like), or combinations thereof. Further, the solids conent of the polysaccharide ester dope, in some instances, may be greater than about 16 wt %.Type: ApplicationFiled: October 23, 2013Publication date: April 24, 2014Applicant: Celanese Acetate LLCInventors: Denis G. Fallon, Thomas S. Garrett, Lawton E. Kizer, Karen L. Zazzara, Michael T. Combs, Richard K. Johnson, Gary Dehart
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Publication number: 20130298923Abstract: A system for producing porous masses may include a mold cavity disposed along the material path, at least one hopper before at least a portion of the mold cavity for feeding a matrix material to the material path, a heat source in thermal communication with at least a first portion of the material path, and a cutter disposed along the material path after the first portion of the material path.Type: ApplicationFiled: October 14, 2011Publication date: November 14, 2013Applicant: CELANESE ACETATE LLCInventors: Thomas S. Garrett, Zeming Gou, Lawton E. Kizer, Raymond M. Robertson
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Publication number: 20130231419Abstract: Processing of cellulose, and more particularly, fiber opening and downstream processing and chemistry are provided. A process includes moistening a cellulose sheet stock to a water content in a range from about 20% to about 50%, attriting the moistened cellulose sheet to a wet pulp, flash drying the wet pulp to a floccule of cellulose having a moisture content from about 4% to about 8%, and esterifying the floccule of cellulose to provide a cellulose ester product.Type: ApplicationFiled: March 1, 2012Publication date: September 5, 2013Applicant: Celanese Acetate LLCInventors: Thomas S. Garrett, Lawton E. Kizer, Henry P. Stogner
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Publication number: 20130196849Abstract: The present invention relates to substituted cellulose acetates and methods of use thereof. One embodiment of the present invention provides a coating having a substituted cellulose acetate having a polar substituent that has an oxygen atom covalently bonded to a nonmetal selected from the group of sulfur, phosphorus, and boron; wherein the nonmetal is present in at least about 0.01% by weight of the substituted cellulose acetate.Type: ApplicationFiled: January 27, 2012Publication date: August 1, 2013Applicant: Celanese Acetate LLCInventors: Michael T. Combs, Thomas S. Garrett
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Publication number: 20130195960Abstract: The present invention relates to substituted cellulose acetates and methods of use thereof. One embodiment of the present invention provides a diaper having an inner layer having an absorbent core having a substituted cellulose acetate having a polar substituent that has an oxygen atom covalently bonded to a nonmetal selected from the group of sulfur, phosphorus, boron, and chlorine; wherein the nonmetal is present in at least about 0.01% by weight of the substituted cellulose acetate; and an outer layer.Type: ApplicationFiled: January 27, 2012Publication date: August 1, 2013Applicant: Celanese Acetate LLCInventors: Michael T. Combs, Thomas S. Garrett
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Publication number: 20130196063Abstract: The present invention relates to substituted cellulose acetates and methods of use thereof. One embodiment of the present invention provides a composition having a substituted cellulose acetate having a polar substituent that has an oxygen atom covalently bonded to a nonmetal selected from the group of sulfur, phosphorus, and boron; where the nonmetal is present in at least about 0.01% by weight of the substituted cellulose acetate.Type: ApplicationFiled: January 27, 2012Publication date: August 1, 2013Applicant: Celanese Acetate LLCInventors: Michael T. Combs, Thomas S. Garrett
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Publication number: 20130195787Abstract: The present invention relates to substituted cellulose acetates and methods of use thereof. One embodiment of the present invention provides a drilling fluid having a base fluid and a viscosifier having a substituted cellulose acetate having a polar substituent that comprises an oxygen atom covalently bonded to a nonmetal selected from the group of sulfur, phosphorus, boron, and chlorine; where the nonmetal is present in at least about 0.01% by weight of the substituted cellulose acetate.Type: ApplicationFiled: January 27, 2012Publication date: August 1, 2013Applicant: Celanese Acetate LLCInventors: Michael T. Combs, Thomas S. Garrett
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Publication number: 20130192613Abstract: The present invention relates to substituted cellulose acetates and methods of use thereof. One embodiment of the present invention provides a cigarette filter material having a filter having a substituted cellulose acetate having a polar substituent that has an oxygen atom covalently bonded to a nonmetal selected from the group of sulfur, phosphorus, boron, and chlorine; wherein the nonmetal is present in at least 0.01% by weight of the substituted cellulose acetate.Type: ApplicationFiled: January 27, 2012Publication date: August 1, 2013Applicant: Celanese Acetate LLCInventors: Michael T. Combs, Thomas S. Garrett
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Publication number: 20130096297Abstract: Instilling an acidic catalyst to a reaction mixture can be beneficial during the acylation of cellulose. Methods described herein can comprise preparing a reaction mixture comprising an acylating agent and cellulose, instilling a catalyst comprising an acid to the reaction mixture at an overall catalyst loading level of about 1% or less by weight of the cellulose, and reacting the cellulose with the acylating agent in the presence of the catalyst, thereby forming an acylated cellulose.Type: ApplicationFiled: October 14, 2011Publication date: April 18, 2013Applicant: Celanese Acetate LLCInventors: Michael T. Combs, Thomas S. Garrett