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公开(公告)号：US11230522B2
公开(公告)日：2022-01-25
申请号：US16648344
申请日：2018-09-14
发明人： Dorota Greszta-Franz , Jan Weikard , Matthias Wintermantel , Robert Maleika , Thomas Klimmasch , Thomas Schuettler
IPC分类号： C07C227/40 , C07C229/24 , C07C227/06 , C07C229/26 , C08G18/38 , C08G18/79
摘要： The present invention relates to polyaspartic acid ester compositions which contain polyaspartic acid esters with primary amino groups and small amounts of fumaric acid dialkyl esters, to a method for preparing same and the use thereof as a reactive component for polyisocyanates in two-component polyurethane systems.
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公开(公告)号：US11091584B2
公开(公告)日：2021-08-17
申请号：US15747790
申请日：2016-07-20
发明人： Andreas Hecking , Florian Johannes Stempfle , Christoph Eggert , Michael Grahl , Dorota Greszta-Franz
IPC分类号： C08G18/79 , C08G18/62 , C08G18/73 , C09D175/06 , C08G18/28 , C08G18/42 , C08G18/80 , C09D175/04 , C08G18/24 , C08G18/75
摘要： The present invention relates to a polyisocyanate composition comprising a formation component having isocyanate groups, the isocyanate groups having been reacted to an extent of ≥98% with at least one CH-acidic compound, characterized in that the formation component consists to an extent of ≥51% by weight of at least one polyisocyanate based on pentamethylene 1,5-diisocyanate having a content of isocyanurate trimer of ≤60 area %, based on the total weight of the polyisocyanates based on pentamethylene 1,5-diisocyanate, and the remaining proportion up to 100% by weight of the total amount of polyisocyanates present in the formation component consists of at least one aliphatic or cycloaliphatic polyisocyanate. The present invention further provides a one-component system comprising the polyisocyanate composition, a process for producing a coating on a substrate, and the coatings obtainable from the one-component system.
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公开(公告)号：US20220098437A1
公开(公告)日：2022-03-31
申请号：US17426767
申请日：2020-02-20
IPC分类号： C09D175/12 , C09D7/63 , C08G18/79 , C08G18/73 , C08G18/38
摘要： The present invention relates to two-component clear-coat systems comprising polyaspartic esters having primary amino groups and small amounts of dialkyl fumarates, to a process for the production thereof, and to the use thereof in the production of coatings for vehicle repair applications and to substrates coated therewith.
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公开(公告)号：US20210017322A1
公开(公告)日：2021-01-21
申请号：US17040067
申请日：2019-03-21
IPC分类号： C08G18/02 , C08K5/29 , C08G18/48 , C08G18/62 , C08G18/44 , C08G18/20 , C08G18/42 , C09D175/04 , C08G18/18 , C08G18/79 , C09J175/04
摘要： The present invention relates to a specific uretdione prepolymer, and an aqueous curable composition based on the specific uretdione prepolymer. Furthermore, it pertains to a process for curing said aqueous curable composition, the cured article obtained by this process and additionally to the use of said aqueous composition for coatings, adhesives and/or sealants.
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公开(公告)号：US20200223787A1
公开(公告)日：2020-07-16
申请号：US16648366
申请日：2018-09-14
IPC分类号： C07C227/40 , C07C229/24
摘要： The present invention relates to a method for purifying polyaspartic acid ester compositions and to the provision of polyaspartic acid ester compositions that contain 0.01 to
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公开(公告)号：US20190292305A1
公开(公告)日：2019-09-26
申请号：US15933487
申请日：2018-03-23
摘要： The present invention provides a composition comprising a polyuretdione resin; and a blocked amine; and optionally, an additive package (e.g. flow control, wetting agent) and a solvent. The present invention further provides a method of forming a biuret comprising the steps of: unblocking a blocked amine in the presence of moisture; and crosslinking the unblocked amine with a polyuretdione resin. The compositions of the present invention are particularly applicable in or as coatings, adhesives, castings, composites, and sealants with good performance and extended pot-life.
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公开(公告)号：US09718916B2
公开(公告)日：2017-08-01
申请号：US15008504
申请日：2016-01-28
IPC分类号： G02B1/04 , C08G18/38 , C08G18/72 , C08G18/73 , C08G18/75 , C08G18/78 , C08G18/79 , C08L75/04 , C08L81/00
CPC分类号： C08G18/3876 , C08G18/3857 , C08G18/3863 , C08G18/3868 , C08G18/722 , C08G18/725 , C08G18/73 , C08G18/755 , C08G18/7831 , C08G18/7887 , C08G18/792 , C08L75/04 , C08L81/00 , G02B1/04 , G02B1/041 , C08L75/00
摘要： The present invention relates to a composition comprising 10 to 50 wt.-% of at least one polyisocyanate a-1) based on hexamethylene diisocyanate, comprising at least one oligomeric polyisocyanate based on hexamethylene diisocyanate and optionally monomeric hexamethylene diisocyanate and 50 to 90 wt.-% of at least one polyisocyanate a-2) based on isophorone diisocyanate, comprising at least one oligomeric polyisocyanate based on isophorone diisocyanate and optionally monomeric isophorone diisocyanate, with the proviso that at least one of the components a-1) and a-2) additionally comprises monomeric isocyanate of the named kind, as well as at least one sulfur-containing component. It has been shown that the above mentioned mixture of the specific isocyanate group containing components improves the thermal and mechanical properties of a cured composition. Thus prepared molded articles are particularly suitable for the preparation of spectacle lenses, inter alia due to these properties.
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公开(公告)号：US10968165B2
公开(公告)日：2021-04-06
申请号：US16648366
申请日：2018-09-14
IPC分类号： C07C227/40 , C07C229/24 , C07C227/06
摘要： The present invention relates to a method for purifying polyaspartic acid ester compositions and to the provision of polyaspartic acid ester compositions that contain 0.01 to
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公开(公告)号：US20210024679A1
公开(公告)日：2021-01-28
申请号：US17040063
申请日：2019-03-21
发明人： Saskia Beuck , Sebastian Doerr , Hans-Josef Laas , Dorota Greszta-Franz , Nusret Yuva , Ralph-Georg Born
IPC分类号： C08G18/02 , C08K5/29 , C08G18/48 , C08G18/62 , C08G18/44 , C08G18/20 , C08G18/42 , C09D175/04 , C08G18/18 , C08G18/79 , C09J175/04
摘要： The present invention relates to a catalyst system comprising: A) at least one compound selected from azoles, oxazoles, thiazoles, benzotriazole, benzimidazole, benzoxazole and salts thereof; B) at least one acid catcher, which contains at least one epoxy group; and C) at least one catalyst containing an N,N,N′-trisubstituted amidine structure with an amidine group content of from 12.0 to 47.0 wt %, calculated as CN2 with molecular weight=40. The invention also relates to a kit which comprises the catalyst system of the present invention and an aqueous uretdione dispersion having an acid number of from 1 to 100 KOH/g and additionally at least one carboxyl group. The invention further relates to a method for producing a polyurethane layer using the catalyst system of the present invention and said uretdione dispersion, and to the obtained polyurethane layer, and to the use of the catalyst system for curing aqueous acidic uretdione dispersions and/or for the production of paints or coatings.
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10.发明申请公开(公告)号：US20190292299A1
公开(公告)日：2019-09-26
申请号：US15933475
申请日：2018-03-23
发明人： Sebastian Dörr , Saskia Beuck , Hans-Josef Laas , Dorota Greszta-Franz , Nusret Yuva , Ralph-Georg Born , Alan Ekin
IPC分类号： C08G18/09 , C09D175/06 , C08G18/42 , C08G18/48 , C08G18/24 , C08G18/75 , B05D1/28 , B05D3/02
摘要： The present invention relates to aqueous, curable composition, comprising or consisting of A) at least one uretdione prepolymer, which comprises at least one uretdione group, and which is obtainable by reacting A1) at least one uretdione polyisocyanate having an isocyanate functionality of at least 2.0, whereby said uretdione polyisocyanate is obtained from at least one aliphatic polyisocyanate, with A2) at least one compound comprising at least one Zerewitinoff-active group, and A3) at least one reactant, which comprises at least one Zerewitinoff-active group and being different from A2 or which is H2O, preferably in the presence of at least one catalyst, to obtain the uretdione prepolymer, wherein the prepolymer has an acid number of at most 4 mg KOH/g, preferably determined according to DIN EN ISO 2114:2002-06 as 37 wt. % aqueous dispersion; and B) optionally at least one compound, which comprises at least one Zerewitinoff-active group; and C) at least one azolate-compound. Furthermore, the present invention pertains to a process for curing the composition of the present invention on a substrate and a cured article obtained by this process. Moreover, the invention relates to the use of the compositions of the present invention for coatings, adhesives and/or sealants.
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