Patents by Inventor Alan D. Bushmire
Alan D. Bushmire 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: 11939418Abstract: A photo-curable composition can include a photo-curable resin and a photoinitiator. The photo-curable composition can typically have a shear viscosity of less than 1 Pa·s at 100° C. at a shear rate of 50 s?1 and can typically include a first prepolymer, a second prepolymer, and a reactive diluent.Type: GrantFiled: December 15, 2021Date of Patent: March 26, 2024Assignee: STRATASYS, INC.Inventors: Liang Chen, Alan D. Bushmire, Vahid Karimkhani
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Publication number: 20230183411Abstract: A photo-curable composition can include a photo-curable resin and a photoinitiator. The photo-curable composition can typically have a shear viscosity of less than 1 Pa·s at 100° C. at a shear rate of 50 s?1 and can typically include a first prepolymer, a second prepolymer, and a reactive diluent.Type: ApplicationFiled: December 15, 2021Publication date: June 15, 2023Inventors: Liang Chen, Alan D. Bushmire, Vahid Karimkhani
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Patent number: 11566145Abstract: Polyurethane coating compositions are disclosed that include an isocyanate-reactive component that includes a polycyclic polyether polyol that is the reaction product of a reaction mixture that includes a polycyclic polyol starter, and an alkylene oxide, as well as an isocyanate-functional component that includes a non-aromatic polyisocyanate. The polyurethane coating compositions may be particularly useful as a gel coat in the manufacture of glass fiber reinforced plastics.Type: GrantFiled: April 3, 2019Date of Patent: January 31, 2023Assignee: COVESTRO LLCInventors: Anthony R. Loveday, Jack R. Reese, Rick L. Adkins, David P. Zielinski, James A. Thompson-Colón, Alan D. Bushmire, Liang Chen, Chen Xu
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Patent number: 11453739Abstract: Provided is a process for producing a polyisocyanurate comprising: trimerizing an aliphatic polyisocyanate with a trimerization catalyst in the presence of a thermally decomposable acid at a molar ratio of acid to catalyst of from 0.1 to 10, wherein the polyisocyanurate has a greater pot life than the pot life of the polyisocyanurate not containing the thermally decomposable acid. Polyisocyanurates made according to the inventive process lengthen the pot life of pultrusion composite formulations made therefrom without affecting the reactivity of the formulations.Type: GrantFiled: June 16, 2020Date of Patent: September 27, 2022Assignee: Covestro LLCInventors: Liang Chen, James A. Thompson-Colón, Alan D. Bushmire
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Patent number: 11440988Abstract: The present invention provides a reaction mixture comprising a blend of a first isocyanate-based uretdione-containing resin and a second isocyanate-based uretdione-containing resin, a neutralized polyol and a tertiary amine catalyst, and optionally, an additive package selected from the group consisting of flow control additives, pigments (colorants), wetting agents, and solvents, wherein the first isocyanate and the second isocyanate are different. The first isocyanate-based uretdione-containing resin and the second isocyanate-based uretdione-containing resin may be cold blended or hot blended. Coatings, adhesives, castings, composites, and sealants made from hot blended formulations exhibit superior performance over those made from cold blended formulations.Type: GrantFiled: March 23, 2018Date of Patent: September 13, 2022Assignees: Covestro LLC, Covestro Deutschland AGInventors: Alan Ekin, Florian Johannes Stempfle, Alan D. Bushmire
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Publication number: 20220153910Abstract: Provided is a polyurethane-polyisocyanurate hybrid composition comprising a mixture of an aliphatic polyisocyanate; a polyol having an acid number of ?5 mg KOH/g; and a first catalyst, optionally, a second catalyst, wherein the mixture is reacted at an NCO/OH index of from 2.0 to 25. Also provided is a process for producing a polyurethane-polyisocyanurate hybrid composition, the process comprising forming a mixture of a) an aliphatic polyisocyanate, b) a polyol having an acid number of ?5 mg KOH/g, and c) a first catalyst, optionally, d) a second catalyst, and reacting the mixture at an NCO/OH index of from 2.0 to 25. The polyol with a low acid value (?5 mg KOH/g) included in the hybrid compositions helps ensure sufficient resin cure. The inventive polyurethane-polyisocyanurate hybrid compositions may find use in or as coatings and adhesives having improved hardness compared with polyisocyanurate coatings and higher reactivity that allows curing at lower temperatures.Type: ApplicationFiled: November 18, 2020Publication date: May 19, 2022Inventors: Liang Chen, Alan D. Bushmire
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Publication number: 20220153911Abstract: Provided is a polyurethane-polyisocyanurate composition comprising a mixture of: an aliphatic polyisocyanate and optionally, an aromatic polyisocyanate or aromatic isocyanate-terminated prepolymer; a polyol; and a first catalyst, optionally, a second catalyst, optionally, a mold release agent, wherein the aliphatic polyisocyanate present in the mixture in an amount in excess of the aromatic polyisocyanate or the aromatic isocyanate-terminated prepolymer, and wherein the mixture is reacted at an NCO/OH index of from 2.0 to 25. The inventive composition may find use in a variety of pultrusion processes for producing composites, including, but not limited to, wind turbine blades, yacht shells, window frames, door frames, ladder frames, telegraph pole cross arms, tent poles, solar cell frames, solar cell backsheets, radomes, highway guard rails, floor boards, pipes, telegraph poles, auto trunks, luggage holders, engine covers, golf clubs, tennis poles, badminton poles, bicycle frames, surfboards, and snowboards.Type: ApplicationFiled: November 18, 2020Publication date: May 19, 2022Inventors: Liang Chen, Alan D. Bushmire
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Patent number: 11292864Abstract: The present invention provides a reaction mixture comprising a hot blend of a first isocyanate-based uretdione resin and a second isocyanate-based uretdione resin, a neutralized polyol and a tertiary amine catalyst, and optionally, an additive package selected from the group consisting of flow control additives, pigments (colorants), wetting agents, and solvents, wherein the first isocyanate and the second isocyanate are different. The isocyanate-based uretdiones that have been hot blended together produce coatings, adhesives, castings, composites, and sealants, which exhibit better performance properties (such as microhardness) than those coatings, adhesives, castings, composites, and sealants produced from the constituent isocyanate-based uretdiones alone.Type: GrantFiled: March 23, 2018Date of Patent: April 5, 2022Assignees: Covestro LLC, Covestro Deutschland AGInventors: Alan Ekin, Florian Johannes Stempfle, Alan D. Bushmire
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Publication number: 20210388148Abstract: Provided is a process for producing a polyisocyanurate comprising: trimerizing an aliphatic polyisocyanate with a trimerization catalyst in the presence of a thermally decomposable acid at a molar ratio of acid to catalyst of from 0.1 to 10, wherein the polyisocyanurate has a greater pot life than the pot life of the polyisocyanurate not containing the thermally decomposable acid. Polyisocyanurates made according to the inventive process lengthen the pot life of pultrusion composite formulations made therefrom without affecting the reactivity of the formulations.Type: ApplicationFiled: June 16, 2020Publication date: December 16, 2021Inventors: Liang Chen, James A. Thompson-Colón, Alan D. Bushmire
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Publication number: 20210155741Abstract: An alternative polyurethane composition is provided which comprises the reaction product of a poly(alkynyl carbamate) prepolymer and an azidated polyol, wherein reaction occurs without a catalyst at a temperature of from 100° C. to 200° C., or occurs in the presence of a CuI-containing catalyst at a temperature of from 20° C. to 140° C. The inventive alternative polyurethane compositions may be used to provide solventborne or waterborne coatings, adhesives, sealants, films, elastomers, castings, foams, and composites.Type: ApplicationFiled: November 25, 2019Publication date: May 27, 2021Inventors: Robson F. Storey, Alan Ekin, R. Hunter Cooke, III, Jie Wu, Alan D. Bushmire, Harrison A. Livingston
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Publication number: 20200291260Abstract: Polyurethane coating compositions are disclosed that include an isocyanate-reactive component that includes a polycyclic polyether polyol that is the reaction product of a reaction mixture that includes a polycyclic polyol starter, and an alkylene oxide, as well as an isocyanate-functional component that includes a non-aromatic polyisocyanate. The polyurethane coating compositions may be particularly useful as a gel coat in the manufacture of glass fiber reinforced plastics.Type: ApplicationFiled: April 3, 2019Publication date: September 17, 2020Inventors: Anthony R. LOVEDAY, Jack R. REESE, Rick L. ADKINS, David P. ZIELINSKI, James A. THOMPSON-COLÓN, Alan D. BUSHMIRE, Liang CHEN, Chen XU
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Patent number: 10731051Abstract: The present invention provides a system comprising an allophanate composition comprising a neutralized polyol, a polyuretdione resin, a tertiary amine catalyst, an additive package, and a reducer; and a neutralized basecoat comprising an inorganic salt and a pigment. The present invention further provides a method of making an allophanate system comprising combining a neutralized polyol with a polyuretdione resin in the presence of a tertiary amine catalyst, an additive package, and a reducer to produce an allophanate composition, and contacting the allophanate composition with a neutralized basecoat comprising an inorganic salt and a pigment. The system may be used to make coatings, adhesives, castings, composites, and sealants in which clear-coating on neutralized pigmented basecoats is much improved in comparison to coating on non-neutralized basecoats.Type: GrantFiled: March 23, 2018Date of Patent: August 4, 2020Assignee: Covestro LLCInventors: Alan Ekin, Alan D. Bushmire
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Publication number: 20190292295Abstract: The present invention provides a reaction mixture comprising a blend of a first isocyanate-based uretdione-containing resin and a second isocyanate-based uretdione-containing resin, a neutralized polyol and a tertiary amine catalyst, and optionally, an additive package selected from the group consisting of flow control additives, pigments (colorants), wetting agents, and solvents, wherein the first isocyanate and the second isocyanate are different. The first isocyanate-based uretdione-containing resin and the second isocyanate-based uretdione-containing resin may be cold blended or hot blended. Coatings, adhesives, castings, composites, and sealants made from hot blended formulations exhibit superior performance over those made from cold blended formulations.Type: ApplicationFiled: March 23, 2018Publication date: September 26, 2019Inventors: Alan Ekin, Florian Johannes Stempfle, Alan D. Bushmire
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Publication number: 20190292401Abstract: The present invention provides a system comprising an allophanate composition comprising a neutralized polyol, a polyuretdione resin, a tertiary amine catalyst, an additive package, and a reducer; and a neutralized basecoat comprising an inorganic salt and a pigment. The present invention further provides a method of making an allophanate system comprising combining a neutralized polyol with a polyuretdione resin in the presence of a tertiary amine catalyst, an additive package, and a reducer to produce an allophanate composition, and contacting the allophanate composition with a neutralized basecoat comprising an inorganic salt and a pigment. The system may be used to make coatings, adhesives, castings, composites, and sealants in which clear-coating on neutralized pigmented basecoats is much improved in comparison to coating on non-neutralized basecoats.Type: ApplicationFiled: March 23, 2018Publication date: September 26, 2019Inventors: Alan Ekin, Alan D. Bushmire
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Publication number: 20190292292Abstract: The present invention provides a reaction mixture comprising a hot blend of a first isocyanate-based uretdione resin and a second isocyanate-based uretdione resin, a neutralized polyol and a tertiary amine catalyst, and optionally, an additive package selected from the group consisting of flow control additives, pigments (colorants), wetting agents, and solvents, wherein the first isocyanate and the second isocyanate are different. The isocyanate-based uretdiones that have been hot blended together produce coatings, adhesives, castings, composites, and sealants, which exhibit better performance properties (such as microhardness) than those coatings, adhesives, castings, composites, and sealants produced from the constituent isocyanate-based uretdiones alone.Type: ApplicationFiled: March 23, 2018Publication date: September 26, 2019Inventors: Alan Ekin, Florian Johannes Stempfle, Alan D. Bushmire
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Patent number: 9701802Abstract: The present disclosure is directed to a process for forming a reinforced ultraviolet (UV) radiation-curable composite. The composite may be formed by applying reinforcing layers and resin layers to a substrate. The resin composition may include an aliphatic urethane acrylate oligomer, a polyfunctional acrylate monomer, and a photoinitiator. The composite formed on the substrate may be exposed to UV radiation to cure the composite on the substrate. The composite may be characterized in that it is cured within 10 minutes of exposure to UV radiation and does not exhibit oxygen inhibition effects, such as, for example, surface tack. The reinforced UV-curable composite may find utility, for example, as a rapid field repair patch in aerospace applications, among others.Type: GrantFiled: April 8, 2009Date of Patent: July 11, 2017Assignee: ALLNEX IP S.a.r.L.Inventors: Alan D. Bushmire, Jan L. Clatty, Michael J. Dvorchak, Charles A. Gambino, Christine Mebane
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Publication number: 20100260941Abstract: The present disclosure is directed to a process for forming a reinforced ultraviolet (UV) radiation-curable composite. The composite may be formed by applying reinforcing layers and resin layers to a substrate. The resin composition may include an aliphatic urethane acrylate oligomer, a polyfunctional acrylate monomer, and a photoinitiator. The composite formed on the substrate may be exposed to UV radiation to cure the composite on the substrate. The composite may be characterized in that it is cured within 10 minutes of exposure to UV radiation and does not exhibit oxygen inhibition effects, such as, for example, surface tack. The reinforced UV-curable composite may find utility, for example, as a rapid field repair patch in aerospace applications, among others.Type: ApplicationFiled: April 8, 2009Publication date: October 14, 2010Applicant: Bayer MaterialScience LLCInventors: Alan D. Bushmire, Jan L. Clatty, Michael J. Dvorchak, Charles A. Gambino, Christine Mebane
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Publication number: 20090313909Abstract: The present invention provides a low density, semi-rigid polyurethane foam made from the reaction product, at an isocyanate index of from about 100 to about 150, of at least one polyisocyanate and an isocyanate-reactive blend containing from about 15 wt. % to about 55 wt. %, based on the weight of the resin, of a difunctional or greater functionality polyether polyol, from about 3 wt. % to about 19 wt. %, based on the weight of the resin, of at least one polyether tetrol, and from about 7 wt. % to about 39 wt. %, based on the weight of the resin, of at least one non-halogenated polyester polyol in the presence of from about 5 wt. % to about 30 wt. %, based on the weight of the resin, of at least one non-hydroxy functional flame retardant and from about 1 wt. % to about 20 wt.Type: ApplicationFiled: June 20, 2008Publication date: December 24, 2009Inventors: Jan L. Clatty, Alan D. Bushmire
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Patent number: 6617368Abstract: This invention relates to a process for the preparation of an isotropic rigid foam comprising the step of reacting: (A) an organic polyisocyanate component selected from the group consisting of: (1) a polymethylene poly(phenylisocyanate) and (2) an NCO-terminated prepolymer, and comprising the reaction product of: (a) a polyester comprising the reaction product of (i) pure ortho-phthalic acid or phthalic anhydride and (ii) a glycol and (b) a polymethylene poly(phenylisocyanate); with (B) an isocyanate-reactive component comprising: (1) a liquid OH-terminated prepolymer having a viscosity of more than about 100,000 mPa·s at 25° C.Type: GrantFiled: November 13, 2001Date of Patent: September 9, 2003Assignee: Bayer CorporationInventors: David D. Steppan, Alan D. Bushmire, Edward E. Ball
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Publication number: 20030134923Abstract: This invention relates to a process for the preparation of an isotropic rigid foam comprising the step of reacting: (A) an organic polyisocyanate component selected from the group consisting of: (1) a polymethylene poly(phenylisocyanate) and (2) an NCO-terminated prepolymer, and comprising the reaction product of: (a) a polyester comprising the reaction product of (i) pure ortho-phthalic acid or phthalic anhydride and (ii) a glycol and (b) a polymethylene poly(phenylisocyanate); with (B) an isocyanate-reactive component comprising: (1) a liquid OH-terminated prepolymer having a viscosity of more than about 100,000 mPa.s at 25° C.Type: ApplicationFiled: November 13, 2001Publication date: July 17, 2003Inventors: David D. Steppan, Alan D. Bushmire, Edward E. Ball