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公开(公告)号：US11267927B2
公开(公告)日：2022-03-08
申请号：US16693943
申请日：2019-11-25
IPC分类号： C08G18/12 , C08G18/38 , C08G18/28 , C08G18/34 , C08G18/42 , C08G18/75 , C08G18/76 , C08G18/22 , C08G18/44 , C09J175/04 , C08G18/78 , C09D175/04 , C08G18/24 , C09J175/14 , C09D175/14
摘要： The present invention provides alternative polyurethane composition comprising the reaction product of an azidated polyol and a poly(alkynyl carbamate) prepolymer, wherein the poly(alkynyl carbamate) prepolymer comprises the reaction product of a polyisocyanate, an alkynol, and an oxysilane. The reaction of the polyol and the prepolymer may occur in the presence of a catalyst or at a temperature of from 20° C. to 120° C. The inventive oxysilane and azido-alkyne hybrid click formulations provide comparable performance, and in some cases better performance, to/than urethane and azido-alkyne control click formulations in terms of pencil hardness, MEK double rubs, and glass transition temperature. The inventive alternative polyurethane compositions may be used to provide coatings, adhesives, sealants, films, elastomers, castings, and composites.
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公开(公告)号：US11292866B2
公开(公告)日：2022-04-05
申请号：US16693874
申请日：2019-11-25
IPC分类号： C08G18/42 , C08G18/28 , C08G18/22 , C08G18/32 , C09D175/14 , C08G18/80 , C08G18/18 , C08G18/24 , C08G18/16 , C08G18/73 , C08G18/78 , C08G18/62
摘要： An alternative polyurethane composition is provided which comprises a reaction product of an azidated polyol and a poly(alkynyl carbamate) prepolymer, wherein reaction occurs at a temperature of from 20° C. to 200° C., optionally in the presence of a CuI-containing catalyst and wherein the poly(alkynyl carbamate) prepolymer comprises a reaction product of a polyisocyanate, an alkynol, and a glycol ether, wherein from 1 mol % to 33 mol % of isocyanate groups are reacted with glycol ether and the remaining isocyanate groups are reacted with the alkynol. The inclusion of glycol ethers into the polyisocyanate chain of the poly(alkynyl carbamate) prepolymer at a level of from 1 mol % to 33 mol %, is efficient in reducing the viscosity of the composition without compromising its performance in coatings, adhesives, sealants, films, elastomers, castings, foams, and composites made with the inventive alternative polyurethane compositions.
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公开(公告)号：US20210155737A1
公开(公告)日：2021-05-27
申请号：US16693943
申请日：2019-11-25
IPC分类号： C08G18/12 , C08G18/38 , C08G18/28 , C08G18/34 , C08G18/75 , C08G18/76 , C08G18/22 , C08G18/44 , C08G18/42
摘要： The present invention provides alternative polyurethane composition comprising the reaction product of an azidated polyol and a poly(alkynyl carbamate) prepolymer, wherein the poly(alkynyl carbamate) prepolymer comprises the reaction product of a polyisocyanate, an alkynol, and an oxysilane. The reaction of the polyol and the prepolymer may occur in the presence of a catalyst or at a temperature of from 20° C. to 120° C. The inventive oxysilane and azido-alkyne hybrid click formulations provide comparable performance, and in some cases better performance, to/than urethane and azido-alkyne control click formulations in terms of pencil hardness, MEK double rubs, and glass transition temperature. The inventive alternative polyurethane compositions may be used to provide coatings, adhesives, sealants, films, elastomers, castings, and composites.
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公开(公告)号：US20210155742A1
公开(公告)日：2021-05-27
申请号：US16693874
申请日：2019-11-25
摘要： An alternative polyurethane composition is provided which comprises a reaction product of an azidated polyol and a poly(alkynyl carbamate) prepolymer, wherein reaction occurs at a temperature of from 20° C. to 200° C., optionally in the presence of a CuI-containing catalyst and wherein the poly(alkynyl carbamate) prepolymer comprises a reaction product of a polyisocyanate, an alkynol, and a glycol ether, wherein from 1 mol % to 33 mol % of isocyanate groups are reacted with glycol ether and the remaining isocyanate groups are reacted with the alkynol. The inclusion of glycol ethers into the polyisocyanate chain of the poly(alkynyl carbamate) prepolymer at a level of from 1 mol % to 33 mol %, is efficient in reducing the viscosity of the composition without compromising its performance in coatings, adhesives, sealants, films, elastomers, castings, foams, and composites made with the inventive alternative polyurethane compositions.
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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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