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公开(公告)号：US10731051B2
公开(公告)日：2020-08-04
申请号：US15933570
申请日：2018-03-23
申请人： Covestro LLC
发明人： Alan Ekin , Alan D. Bushmire
IPC分类号： C09D175/02 , C09J175/02 , C08K5/29 , C08G18/02 , C09D5/02 , C09D5/03 , C08L75/02 , C08G18/42 , C08G18/20 , C08G18/62 , C08G18/18 , C08G18/78 , C08G18/48 , C08G18/79 , C09J175/04 , C09D175/04 , C08G18/44 , C09D7/63
摘要： 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.
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公开(公告)号：US20230183411A1
公开(公告)日：2023-06-15
申请号：US17551298
申请日：2021-12-15
申请人： Covestro LLC
发明人： Liang Chen , Alan D. Bushmire , Vahid Karimkhani
CPC分类号： C08G18/10 , C08G18/3221 , B33Y70/00 , C08J3/28 , C08J3/24 , C08J2375/06
摘要： 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.
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公开(公告)号：US11440988B2
公开(公告)日：2022-09-13
申请号：US15933511
申请日：2018-03-23
IPC分类号： C08G18/02 , C08G18/79 , C08K5/31 , C08K5/3467 , C08G18/20 , C09D175/04 , C08G18/18 , C08G18/42 , C08G18/62 , C08G18/44 , C09J175/04 , C08G18/78 , C08G18/48 , C07D471/04
摘要： 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.
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公开(公告)号：US20220153910A1
公开(公告)日：2022-05-19
申请号：US16951049
申请日：2020-11-18
申请人： Covestro LLC
发明人： Liang Chen , Alan D. Bushmire
摘要： 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.
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5.发明授权公开(公告)号：US11453739B2
公开(公告)日：2022-09-27
申请号：US16902668
申请日：2020-06-16
申请人： Covestro LLC
IPC分类号： C08G18/22 , B29C70/52 , C08G18/09 , C08G18/73 , C08G18/75 , C08G18/76 , B29K75/00 , C08K3/04 , C08K3/40 , C08K7/06 , C08K7/08 , C08K7/14
摘要： 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. The pultrusion composite formulations of the invention may be cured and pultruded to yield a variety of products such as 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.
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公开(公告)号：US11292864B2
公开(公告)日：2022-04-05
申请号：US15933470
申请日：2018-03-23
IPC分类号： C08G18/02 , C08L75/02 , C08G18/48 , C09D175/02 , C08G18/20 , C09J175/04 , C08G18/62 , C08G18/42 , C08G18/79 , C09D175/04 , C08G18/44 , C08G18/78 , C08G18/18
摘要： 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.
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公开(公告)号：US20210155741A1
公开(公告)日：2021-05-27
申请号：US16693805
申请日：2019-11-25
发明人： Robson F. Storey , Alan Ekin , R. Hunter Cooke, III , Jie Wu , Alan D. Bushmire , Harrison A. Livingston
IPC分类号： C08G18/28 , C09D175/14 , C08G18/22 , C08G18/73 , C08G18/79 , C08G18/32 , C08G18/10 , C08G18/12 , C08G18/50 , C08G18/24
摘要： 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.
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公开(公告)号：US11566145B2
公开(公告)日：2023-01-31
申请号：US16373929
申请日：2019-04-03
申请人： COVESTRO LLC
发明人： Anthony R. Loveday , Jack R. Reese , Rick L. Adkins , David P. Zielinski , James A. Thompson-Colón , Alan D. Bushmire , Liang Chen , Chen Xu
IPC分类号： C08G18/73 , C09D175/04 , C08G18/32 , B29C37/00 , B29C70/28 , C08J5/04 , C08J7/04 , B29K309/08
摘要： 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.
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公开(公告)号：US20220153911A1
公开(公告)日：2022-05-19
申请号：US16951017
申请日：2020-11-18
申请人： Covestro LLC
发明人： Liang Chen , Alan D. Bushmire
摘要： 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.
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10.发明申请公开(公告)号：US20210388148A1
公开(公告)日：2021-12-16
申请号：US16902668
申请日：2020-06-16
申请人： Covestro LLC
摘要： 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. The pultrusion composite formulations of the invention may be cured and pultruded to yield a variety of products such as 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.
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