Patents by Inventor Mary Ruth Lehrter
Mary Ruth Lehrter 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: 10766180Abstract: A micro-voided film comprising high density polyethylene having a molecular weight of at least about 200,000, and low aspect ratio filler having a mean particle size from about 1 to about 25 microns. The film has a thickness of from about 10 to about 75 microns and a void fraction of from about 0.60 to about 0.75. The micro-voided film is made by a process comprising extruding the composition into a film having a thickness of from about 50 to about 300 microns, and orienting the extruded film using a high stalk, blown film process. The process produces a stabilized high stalk for increasing the production rate of blown, high molecular weight polyethylene, while increasing the film's physical and mechanical properties. The high stalk can be stabilized by application of high velocity, low volume flow rate of air over the interior and exterior surfaces of the extruded film.Type: GrantFiled: May 31, 2018Date of Patent: September 8, 2020Assignee: GREENROCK, LTD.Inventors: Mary Ruth Lehrter, Adam Pacelli
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Publication number: 20180272589Abstract: A micro-voided film comprising high density polyethylene having a molecular weight of at least about 200,000, and low aspect ratio filler having a mean particle size from about 1 to about 25 microns. The film has a thickness of from about 10 to about 75 microns and a void fraction of from about 0.60 to about 0.75. The micro-voided film is made by a process comprising extruding the composition into a film having a thickness of from about 50 to about 300 microns, and orienting the extruded film using a high stalk, blown film process. The process produces a stabilized high stalk for increasing the production rate of blown, high molecular weight polyethylene, while increasing the film's physical and mechanical properties. The high stalk can be stabilized by application of high velocity, low volume flow rate of air over the interior and exterior surfaces of the extruded film.Type: ApplicationFiled: May 31, 2018Publication date: September 27, 2018Inventors: Mary Ruth LEHRTER, Adam PACELLI
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Patent number: 10011063Abstract: A micro-voided film comprising high density polyethylene having a molecular weight of at least about 200,000, and low aspect ratio filler having a mean particle size from about 1 to about 25 microns. The film has a thickness of from about 10 to about 75 microns and a void fraction of from about 0.60 to about 0.75. The micro-voided film is made by a process comprising extruding the composition into a film having a thickness of from about 50 to about 300 microns, and orienting the extruded film using a high stalk, blown film process. The process produces a stabilized high stalk for increasing the production rate of blown, high molecular weight polyethylene, while increasing the film's physical and mechanical properties. The high stalk can be stabilized by application of high velocity, low volume flow rate of air over the interior and exterior surfaces of the extruded film.Type: GrantFiled: November 17, 2014Date of Patent: July 3, 2018Assignee: GREENROCK, LTD.Inventors: Mary Ruth Lehrter, Adam Pacelli
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Publication number: 20180099798Abstract: Provided herein are packaging materials that include a non-foamed layer and a foamed layer including a polyethylene.Type: ApplicationFiled: October 10, 2017Publication date: April 12, 2018Applicant: Sugar Creek Packing Co.Inventor: Mary Ruth Lehrter
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Patent number: 9676131Abstract: A micro-voided film comprising high density polyethylene having a molecular weight of at least about 200,000, and low aspect ratio filler having a mean particle size from about 1 to about 25 microns. The film has a thickness of from about 0.1 to about 20 mils and a void fraction of from about 0.60 to about 0.75. The micro-voided film is made by a process comprising extruding the composition into a film having a thickness of from about 20 to about 200 mils, and orienting the extruded film using a high stalk, blown film process. The process produces a stabilized high stalk for increasing the production rate of blown, high molecular weight polyethylene, while increasing the film's physical and mechanical properties. The high stalk can be stabilized by application of high velocity, low volume flow rate of air over the interior and exterior surfaces of the extruded film.Type: GrantFiled: January 15, 2015Date of Patent: June 13, 2017Assignee: Greenrock, Ltd.Inventors: Mary Ruth Lehrter, Adam Pacelli
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Publication number: 20150123302Abstract: A micro-voided film comprising high density polyethylene having a molecular weight of at least about 200,000, and low aspect ratio filler having a mean particle size from about 1 to about 25 microns. The film has a thickness of from about 0.1 to about 20 mils and a void fraction of from about 0.60 to about 0.75. The micro-voided film is made by a process comprising extruding the composition into a film having a thickness of from about 20 to about 200 mils, and orienting the extruded film using a high stalk, blown film process. The process produces a stabilized high stalk for increasing the production rate of blown, high molecular weight polyethylene, while increasing the film's physical and mechanical properties. The high stalk can be stabilized by application of high velocity, low volume flow rate of air over the interior and exterior surfaces of the extruded film.Type: ApplicationFiled: January 15, 2015Publication date: May 7, 2015Inventors: Mary Ruth LEHRTER, Adam Pacelli
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Publication number: 20150072131Abstract: A micro-voided film comprising high density polyethylene having a molecular weight of at least about 200,000, and low aspect ratio filler having a mean particle size from about 1 to about 25 microns. The film has a thickness of from about 10 to about 75 microns and a void fraction of from about 0.60 to about 0.75. The micro-voided film is made by a process comprising extruding the composition into a film having a thickness of from about 50 to about 300 microns, and orienting the extruded film using a high stalk, blown film process. The process produces a stabilized high stalk for increasing the production rate of blown, high molecular weight polyethylene, while increasing the film's physical and mechanical properties. The high stalk can be stabilized by application of high velocity, low volume flow rate of air over the interior and exterior surfaces of the extruded film.Type: ApplicationFiled: November 17, 2014Publication date: March 12, 2015Inventors: Mary Ruth LEHRTER, Adam PACELLI
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Patent number: 8889047Abstract: A micro-voided film comprising high density polyethylene having a molecular weight of at least about 200,000, and low aspect ratio filler having a mean particle size from about 1 to about 25 microns. The film has a thickness of from about 10 to about 75 microns and a void fraction of from about 0.60 to about 0.75. The micro-voided film is made by a process comprising extruding the composition into a film having a thickness of from about 50 to about 300 microns, and orienting the extruded film using a high stalk, blown film process. The process produces a stabilized high stalk for increasing the production rate of blown, high molecular weight polyethylene, while increasing the film's physical and mechanical properties. The high stalk can be stabilized by application of high velocity, low volume flow rate of air over the interior and exterior surfaces of the extruded film.Type: GrantFiled: January 11, 2011Date of Patent: November 18, 2014Assignee: Greenrock, Ltd.Inventors: Mary Ruth Lehrter, Adam Pacelli
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Publication number: 20110171449Abstract: A micro-voided film comprising high density polyethylene having a molecular weight of at least about 200,000, and low aspect ratio filler having a mean particle size from about 1 to about 25 microns. The film has a thickness of from about 10 to about 75 microns and a void fraction of from about 0.60 to about 0.75. The micro-voided film is made by a process comprising extruding the composition into a film having a thickness of from about 50 to about 300 microns, and orienting the extruded film using a high stalk, blown film process. The process produces a stabilized high stalk for increasing the production rate of blown, high molecular weight polyethylene, while increasing the film's physical and mechanical properties. The high stalk can be stabilized by application of high velocity, low volume flow rate of air over the interior and exterior surfaces of the extruded film.Type: ApplicationFiled: January 11, 2011Publication date: July 14, 2011Inventors: Mary Ruth LEHRTER, Adam Pacelli
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Patent number: 6699347Abstract: The present invention provides a process comprising the steps of (a) applying less than about 0.1 grams per square meter (gsm) of a release agent to a transfer surface, wherein the release agent is selected such that a test sample of the release agent having a concentration at or above its critical surface tension concentration, has a surface tension of less than about 50 dyne/cm or forms a contact angle with the material of the transfer surface of less than about 120°; (b) applying an adhesive to the transfer surface; and (c) transferring the adhesive from the transfer surface to a material web. Preferred embodiments are provided where the transfer surface is metals, polymers, elastomers, ceramics, wood, or combinations thereof and the release agent has the formula: X—CF2O—(C2F4O)p—(CF2O)q—CF2—X. Additional embodiments are provided to continuous and intermittent processes.Type: GrantFiled: May 20, 2002Date of Patent: March 2, 2004Assignee: The Procter & Gamble CompanyInventors: Mary Ruth Lehrter, Steven Lee Barnholtz, James Michael Singer, Glenn David Boutilier, Andrew Julian Wnuk, Dean Arthur Zimmerman, Timothy Jude Lorenz
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Publication number: 20030213548Abstract: The present invention provides a process comprising the steps of (a) applying less than about 0.1 grams per square meter (gsm) of a release agent to a transfer surface, wherein the release agent is selected such that a test sample of the release agent having a concentration at or above its critical surface tension concentration, has a surface tension of less than about 50 dyne/cm or forms a contact angle with the material of the transfer surface of less than about 120°; (b) applying an adhesive to the transfer surface; and (c) transferring the adhesive from the transfer surface to a material web.Type: ApplicationFiled: May 20, 2002Publication date: November 20, 2003Applicant: The Procter & Gamble CompanyInventors: Mary Ruth Lehrter, Steven Lee Barnholtz, James Michael Singer, Glenn David Boutilier, Andrew Julian Wnuk, Dean Arthur Zimmerman, Timothy Jude Lorenz
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Patent number: 6261580Abstract: Tissue paper webs useful in the manufacture of soft, tissue products such as wipes and facial tissues, and processes for making the webs are described. The tissue paper webs include papermaking fibers, an antimigration material and an emollient lotion. Preferred antimigration materials include quaternary ammonium compounds. Preferred emollient lotions include a hydrocarbon emollient. The preferred process for making the preferred invention includes providing the antimigration material to the papermaking furnish and depositing the emollient lotion onto at least one surface of the dried tissue web that includes an antimigration material.Type: GrantFiled: August 31, 1998Date of Patent: July 17, 2001Assignee: The Procter & Gamble CompanyInventors: Mary Ruth Lehrter, Paul Dennis Trokhan, Kenneth Douglas Vinson