Patents by Inventor Bruce A. Clay
Bruce A. Clay 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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Publication number: 20240101769Abstract: Sheets having thicknesses of from 1000 to 10,000 microns which are useful for the production of thermoformed semi-crystalline articles are based on polyaryletherketones having viscosities at 360° C. of at least about 400 Pas at 100 s?1 as measured by parallel plate rheometer. The polyaryletherketones are in a pseudo-amorphous state in the thermoformable sheets.Type: ApplicationFiled: October 14, 2020Publication date: March 28, 2024Applicant: Arkema FranceInventors: Roderick REBER, III, Jason LYONS, Julien JOUANNEAU, Bruce CLAY
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Patent number: 11890800Abstract: A method of manufacturing a semi-crystalline article from at least one pseudo-amorphous polymer including a poly aryl ether ketone, such as PEKK, including a softening step, wherein the at least one pseudo-amorphous polymer is heated to a temperature above its glass transition temperature to soften the polymer, and a crystallization step, wherein the at least one pseudo-amorphous polymer is heated to a temperature between its glass transition temperature and melting temperature, the pseudo-amorphous polymer being placed on a mold during either the softening step or the crystallization step before at least some crystallization takes place. The method results in articles demonstrating increased opacity, increased crystallinity, increased thermal resistance, improved chemical resistance, and improved mechanical properties over articles formed by traditional thermoforming processes.Type: GrantFiled: June 8, 2022Date of Patent: February 6, 2024Assignee: Arkema Inc.Inventors: Bruce Clay, Timothy A. Spahr, Philippe Bussi, Richard Audry, Jason M. Lyons, Yves Deyrail
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Patent number: 11858173Abstract: A method and apparatus for heat treating powders of semi-crystalline or crystallizable polymers. The apparatus includes a heating device for heating the powder to a temperature that is less than the melting temperature of a highest melting crystalline form of the powder, a vessel containing the powder that is exposed to heat produced by the heating device, and a mechanism for moving the vessel to cause the powder within the vessel to move with respect to the vessel.Type: GrantFiled: July 9, 2019Date of Patent: January 2, 2024Assignee: Arkema Inc.Inventors: Denis Huze, Benoit Brule, Nadine Decraemer, Jerome Pascal, Bruce Clay
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Publication number: 20220297370Abstract: A method of manufacturing a semi-crystalline article from at least one pseudo-amorphous polymer including a poly aryl ether ketone, such as PEKK, including a softening step, wherein the at least one pseudo-amorphous polymer is heated to a temperature above its glass transition temperature to soften the polymer, and a crystallization step, wherein the at least one pseudo-amorphous polymer is heated to a temperature between its glass transition temperature and melting temperature, the pseudo-amorphous polymer being placed on a mold during either the softening step or the crystallization step before at least some crystallization takes place. The method results in articles demonstrating increased opacity, increased crystallinity, increased thermal resistance, improved chemical resistance, and improved mechanical properties over articles formed by traditional thermoforming processes.Type: ApplicationFiled: June 8, 2022Publication date: September 22, 2022Inventors: Bruce Clay, Timothy A. Spahr, Philippe Bussi, Richard Audry, Jason M. Lyons, Yves Deyrail
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Patent number: 11390008Abstract: A method of manufacturing a semi-crystalline article from at least one pseudo-amorphous polymer including a poly aryl ether ketone, such as PEKK, including a softening step, wherein the at least one pseudo-amorphous polymer is heated to a temperature above its glass transition temperature to soften the polymer, and a crystallization step, wherein the at least one pseudo-amorphous polymer is heated to a temperature between its glass transition temperature and melting temperature, the pseudo-amorphous polymer being placed on a mold during either the softening step or the crystallization step before at least some crystallization takes place. The method results in articles demonstrating increased opacity, increased crystallinity, increased thermal resistance, improved chemical resistance, and improved mechanical properties over articles formed by traditional thermoforming processes.Type: GrantFiled: December 11, 2019Date of Patent: July 19, 2022Assignee: Arkema Inc.Inventors: Bruce Clay, Timothy A. Spahr, Philippe Bussi, Richard Audry, Jason M. Lyons, Yves Deyrail
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Publication number: 20210283804Abstract: A method and apparatus for heat treating powders of semi-crystalline or crystallizable polymers. The apparatus includes a heating device for heating the powder to a temperature that is less than the melting temperature of a highest melting crystalline form of the powder, a vessel containing the powder that is exposed to heat produced by the heating device, and a mechanism for moving the vessel to cause the powder within the vessel to move with respect to the vessel.Type: ApplicationFiled: July 9, 2019Publication date: September 16, 2021Inventors: Denis HUZE, Benoit BRULE, Nadine DECRAEMER, Jerome PASCAL, Bruce CLAY
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Patent number: 10899047Abstract: A method of manufacturing an article comprises rotomolding at least one polymer comprising a poly(aryl ketone), such as PEKK, under conditions effective to produce a rotomolded article having an impact value of at least 35 in-lbs. A rotomolding method comprises heating the mold for a period of time after the internal air temperature of the mold reaches the highest melting point of the at least one polymer. Methods also include using a PEKK powder with a bulk density of at least about 400 g/L. Rotomolded articles of the present invention have impact values of between about 40 in-lbs to about 95 in-lbs, and in particular embodiments greater than about 95 in-lbs.Type: GrantFiled: March 5, 2013Date of Patent: January 26, 2021Assignee: Arkema Inc.Inventors: Manuel A. Garcia-Leiner, Bruce Clay
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Patent number: 10882215Abstract: The present disclosure is directed to improved poly(arylene ether ketone) powders for use in laser sintering.Type: GrantFiled: December 21, 2016Date of Patent: January 5, 2021Assignee: Arkema Inc.Inventors: Angelo Pedicini, Bruce Clay, Benoit Brule
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Publication number: 20200276760Abstract: The present invention is directed to material extrusion additive manufacturing processes, including fused filament fabrication, used to manufacture improved parts, devices, and prototypes using polyetherketoneketones (“PEKK”) and polyetheretherketones (“PEEK”). Using the improved processes of the invention, PEKK or PEEK polymer readily is 3D printed by FFF such that it crystallizes slowly enough during deposition for the resulting part to remain mostly or substantially amorphous during printing and thus have low percentage and/or more uniform shrinkage per layer and little to no warping from the base during print, and yet fast enough so that the resulting part crystallizes in post-print processing without substantial or any loss of its printed structure.Type: ApplicationFiled: September 14, 2018Publication date: September 3, 2020Inventors: Timothy A. SPAHR, Bruce CLAY, David S. LIU, Julien JOUANNEAU
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Patent number: 10698961Abstract: A search engine parameter optimization system and method. A search parameter metric that optimizes a new document is computed. The new document is optimized at the time content is created. The search parameter metric is based on a particular search engine and determines what is rewarded by the search engine. The search parameter is thus based on analysis of web-content that is highly ranked by that particular search engine.Type: GrantFiled: May 8, 2018Date of Patent: June 30, 2020Inventor: Bruce Clay
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Publication number: 20200164546Abstract: The present disclosure is directed to improved poly(arylene ether ketone) powders for use in laser sintering.Type: ApplicationFiled: December 21, 2016Publication date: May 28, 2020Inventors: Angelo PEDICINI, Bruce CLAY, Benoit BRULE
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Publication number: 20200147852Abstract: A method of manufacturing a semi-crystalline article from at least one pseudo-amorphous polymer including a poly aryl ether ketone, such as PEKK, including a softening step, wherein the at least one pseudo-amorphous polymer is heated to a temperature above its glass transition temperature to soften the polymer, and a crystallization step, wherein the at least one pseudo-amorphous polymer is heated to a temperature between its glass transition temperature and melting temperature, the pseudo-amorphous polymer being placed on a mold during either the softening step or the crystallization step before at least some crystallization takes place. The method results in articles demonstrating increased opacity, increased crystallinity, increased thermal resistance, improved chemical resistance, and improved mechanical properties over articles formed by traditional thermoforming processes.Type: ApplicationFiled: December 11, 2019Publication date: May 14, 2020Inventors: Bruce Clay, Timothy A. Spahr, Philippe Bussi, Richard Audry, Jason M. Lyons, Yves Deyrail
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Publication number: 20190311068Abstract: A search engine parameter optimization system and method. A search parameter metric that optimizes a new document is computed. The new document is optimized at the time content is created. The search parameter metric is based on a particular search engine and determines what is rewarded by the search engine. The search parameter is thus based on analysis of web-content that is highly ranked by that particular search engine.Type: ApplicationFiled: May 8, 2018Publication date: October 10, 2019Inventor: Bruce Clay
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Patent number: 9962911Abstract: A multilayer article prepared by rotational moulding can include a layer A that is a polyolefin (PO) based layer prepared from PO and a functionalised polyolefin (FPO), or a PO grafter to a non-polyolefin (NPO) in the form of a block copolymer (PO-g-NPO). A layer B can be a PO that is dissimilar from layer A, an NPO, a mixture thereof, and optionally an FPO or a PO-g-NPO. A layer C can be dissimilar from layer A and similar to or dissimilar from layer B. Layer C can be adjacent to layer A and/or layer B, can have good adhesion to layer A and/or layer B, and is not a blend of layer A and layer B. A method of preparing the multilayer article can include rotational moulding.Type: GrantFiled: April 27, 2012Date of Patent: May 8, 2018Assignee: Total Research & Technology FeluyInventors: Eric Maziers, Gregory O'Brien, Bruce Clay
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Publication number: 20150079378Abstract: A method of manufacturing an article comprises rotomolding at least one polymer comprising a poly(aryl ketone), such as PEKK, under conditions effective to produce a rotomolded article having an impact value of at least 35 in-lbs. A rotomolding method comprises heating the mold for a period of time after the internal air temperature of the mold reaches the highest melting point of the at least one polymer. Methods also include using a PEKK powder with a bulk density of at least about 400 g/L. Rotomolded articles of the present invention have impact values of between about 40 in-lbs to about 95 in-lbs, and in particular embodiments greater than about 95 in-lbs.Type: ApplicationFiled: March 5, 2013Publication date: March 19, 2015Inventors: Manuel A. Garcia-Leiner, Bruce Clay
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Publication number: 20130011643Abstract: A multilayer article prepared by rotational moulding can include a layer A that is a polyolefin (PO) based layer prepared from PO and a functionalised polyolefin (FPO), or a PO grafter to a non-polyolefin (NPO) in the form of a block copolymer (PO-g-NPO). A layer B can be a PO that is dissimilar from layer A, an NPO, a mixture thereof, and optionally an FPO or a PO-g-NPO. A layer C can be dissimilar from layer A and similar to or dissimilar from layer B. Layer C can be adjacent to layer A and/or layer B, can have good adhesion to layer A and/or layer B, and is not a blend of layer A and layer B. A method of preparing the multilayer article can include rotational moulding.Type: ApplicationFiled: April 27, 2012Publication date: January 10, 2013Applicant: TOTAL PETROCHEMICALS RESEARCH FELUYInventors: Eric Maziers, Gregory O'Brien, Bruce Clay
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Patent number: 8309190Abstract: The invention relates to an article formed by a rotational molding process, having at least one layer formed from a high molecular weight polyamide. The high molecular weight polyamide is one having a molecular weight in the range of 20,000 to 35,000 and also having an inherent viscosity of 1.05-1.60 dL/g. Rotomolded articles having a high molecular weight polyamide layer have better low-temperature impact performance compared to articles formed from lower molecular weight polyamides.Type: GrantFiled: February 24, 2010Date of Patent: November 13, 2012Assignee: Arkema Inc.Inventors: John C. Chen, Barbara Ramfel, Bruce Clay, William Todd Rogers
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Publication number: 20120027971Abstract: The invention relates to an article formed by a rotational molding process, having at least one layer formed from a high molecular weight polyamide. The high molecular weight polyamide is one having a molecular weight in the range of 20,000 to 35,000 and also having an inherent viscosity of 1.05-1.60 dL/g. Rotomolded articles having a high molecular weight polyamide layer have better low-temperature impact performance compared to articles formed from lower molecular weight polyamides.Type: ApplicationFiled: February 24, 2010Publication date: February 2, 2012Applicant: Arkema Inc.Inventors: John C. Chen, Barbara Ramfel, Bruce Clay, William Todd Rogers
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Patent number: 8029718Abstract: The invention relates to a rotomolding process for forming a multi-layer article of two different polymers with different melting points in which an outer layer polymer powder is added to a rotational molder along with an inner layer polymer powder that is separated from the outer layer powder by a release film. The release film has a particular melting point that is greater than that of the outer layer polymer and preferably between the melting points of the inside layer and outside layer polymers. In one embodiment, the release layer forms an enclosure or bag in which the inner layer (higher melting point) powder is enclosed. In another embodiment the release film forms a barrier between an insulated cavity and the mold. The process provides a means for a “one-shot” rotomolding method.Type: GrantFiled: April 4, 2007Date of Patent: October 4, 2011Assignee: Arkema Inc.Inventors: Gregory S. O'Brien, Bruce Clay, Ronald Partridge
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Patent number: D890775Type: GrantFiled: September 7, 2018Date of Patent: July 21, 2020Inventor: Bruce Clay