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公开(公告)号：US20210230365A1
公开(公告)日：2021-07-29
申请号：US17155731
申请日：2021-01-22
申请人： Covestro LLC
发明人： Matthew Stewart , Joseph Pierce , Michael K. Jeffries , Wendy S. Gustavich , Charles A. Gambino , Andrew Bradburn , Robert A. Wade , Myron W. Shaffer
IPC分类号： C08G69/26 , C08G18/38 , C08G18/73 , C09D175/02
摘要： A polyaspartate composition can include a reaction product of a diamine and an amine-reactive component. The amine reactive-component can include a diester and an acrylate combined at an equivalent ratio of diester equivalents to acrylate equivalents of from less than 0.9:greater than 0.1 to greater than 0.3:less than 0.7. The diamine and the amine-reactive component can be combined at an equivalent ratio of diamine equivalents to amine-reactive component equivalents of from 1:0.8 to 0.8:1.
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公开(公告)号：US10160142B2
公开(公告)日：2018-12-25
申请号：US15504768
申请日：2015-08-12
申请人： Covestro LLC
发明人： Robert A. Wade , Kurt E. Best , Jessee McCanna
IPC分类号： B29C67/00 , B29C37/00 , C08G18/79 , C08G18/24 , C09D175/06 , C08G18/42 , C08G18/44 , B29C67/24
摘要： Disclosed are processes for in-mold coating of a plastic substrate. The processes include: (a) molding a plastic substrate in a first mold cavity of a mold comprising at least two cavities to form a molded plastic substrate; (b) introducing the molded plastic substrate into a second mold cavity of the mold; (c) introducing a coating composition into the second mold cavity containing the molded plastic substrate in order to coat the substrate, the coating composition comprising: (i) a polymer comprising isocyanate-reactive groups; and (ii) a polyisocyanate; (d) curing the composition in the second mold cavity; and (e) opening the mold cavity.
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公开(公告)号：US11732132B2
公开(公告)日：2023-08-22
申请号：US16594357
申请日：2019-10-07
申请人： Covestro LLC
发明人： Matthew Stewart , Joseph Pierce , Wendy S. Gustavich , Michael Jeffries , Robert A. Wade , Myron W. Shaffer
CPC分类号： C08L77/06 , C08G18/603 , C08G18/73 , C08G18/753 , C08G69/26 , C08L75/02 , C09D175/02
摘要： A polyaspartate composition is provided which comprises a reaction product of a diamine and a diester reacted at a ratio of diamine equivalents to diester equivalents of from 1:0.95 to 1:0.50. The polyaspartate compositions of the invention may be combined with polyisocyanates to produce polyurea compositions, e.g., coatings, adhesives, sealants, composites, castings, and films, which exhibit a faster cure time along with faster development time for physical properties such as hardness and tensile strength.
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公开(公告)号：US20210102064A1
公开(公告)日：2021-04-08
申请号：US16594357
申请日：2019-10-07
申请人： Covestro LLC
发明人： Matthew Stewart , Joseph Pierce , Wendy S. Gustavich , Michael Jeffries , Robert A. Wade , Myron W. Shaffer
摘要： A polyaspartate composition is provided which comprises a reaction product of a diamine and a diester reacted at a ratio of diamine equivalents to diester equivalents of from 1:0.95 to 1:0.50. The polyaspartate compositions of the invention may be combined with polyisocyanates to produce polyurea compositions, e.g., coatings, adhesives, sealants, composites, castings, and films, which exhibit a faster cure time along with faster development time for physical properties such as hardness and tensile strength.
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公开(公告)号：US20180362801A1
公开(公告)日：2018-12-20
申请号：US15626267
申请日：2017-06-19
申请人： Covestro LLC
发明人： Robert A. Wade , Charles A. Gambino , Timothy Pike
摘要： The present invention provides a coating composition comprising 1% to 99% of a blend of two or more aspartic ester functional amines, 20% to 70% of an acrylate-containing compound; and 10% to 70% of one or more polyisocyanates, wherein the coating composition is 100% solids and wherein the coating composition has a maximum viscosity of no more than 600 cps at one hour. The ready-to-apply coating produced from this composition has extended working times without exhibiting “zippering” and may find use on countertops and floors.
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公开(公告)号：US11827788B2
公开(公告)日：2023-11-28
申请号：US16594357
申请日：2019-10-07
申请人： Covestro LLC
发明人： Matthew Stewart , Joseph Pierce , Wendy S. Gustavich , Michael Jeffries , Robert A. Wade , Myron W. Shaffer
CPC分类号： C08L77/06 , C08G18/603 , C08G18/73 , C08G18/753 , C08G69/26 , C08L75/02 , C09D175/02
摘要： A polyaspartate composition is provided which comprises a reaction product of a diamine and a diester reacted at a ratio of diamine equivalents to diester equivalents of from 1:0.95 to 1:0.50. The polyaspartate compositions of the invention may be combined with polyisocyanates to produce polyurea compositions, e.g., coatings, adhesives, sealants, composites, castings, and films, which exhibit a faster cure time along with faster development time for physical properties such as hardness and tensile strength.
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公开(公告)号：US20170274564A1
公开(公告)日：2017-09-28
申请号：US15504768
申请日：2015-08-12
申请人： Covestro LLC
发明人： Robert A. Wade , Kurt E. Best , Jessee McCanna
CPC分类号： B29C37/0028 , B29C67/246 , B29C2037/0035 , C08G18/246 , C08G18/4202 , C08G18/4211 , C08G18/44 , C08G18/792 , C08G18/798 , C08G2120/00 , C09D175/06
摘要： Disclosed are processes for in-mold coating of a plastic substrate. The processes include: (a) molding a plastic substrate in a first mold cavity of a mold comprising at least two cavities to form a molded plastic substrate; (b) introducing the molded plastic substrate into a second mold cavity of the mold; (c) introducing a coating composition into the second mold cavity containing the molded plastic substrate in order to coat the substrate, the coating composition comprising: (i) a polymer comprising isocyanate-reactive groups; and (ii) a polyisocyanate; (d) curing the composition in the second mold cavity; and (e) opening the mold cavity.
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