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1. 发明申请

US20230120588A1 SELF-HEALING OLIGOMERS AND THE USE THEREOF 有权
公开(公告)号：US20230120588A1
公开(公告)日：2023-04-20
申请号：US17913659
申请日：2021-03-31
申请人： Covestro (Netherlands) B.V.
发明人： Meng He , Sam Hsieh , Jim Lin
IPC分类号： C08G18/38 , C08F290/06 , C08G18/61 , C08G18/32 , C08G18/12 , C08G18/67 , C08G18/24 , C08G18/75 , C08G18/48 , C08G18/73
摘要： Disclosed herein are self-healing oligomers according to the structure [UPy-(Dm-U-Dm)(2+q)]-[A(G)(n−1)-Dm]k-Z; wherein UPy, D, m, U, q, A, G, n, k, and Z are defined and described further herein, and wherein the oligomer possesses at least 3 urethane linking groups and comprises a backbone derived from a polyether polyol, a polyester polyol, a poly(dimethylsiloxane), a disulfide polyol, or combinations thereof. Also described and claimed are various compositions containing such oligomers as part of a self-healing component, wherein such compositions also include an optional reactive monomer and/or oligomer component and a photoinitiator component. Yet further described and claimed are articles cured from the compositions elsewhere described using the oligomers elsewhere described.

2. 发明申请

US20230119082A1 (AZIRIDINYL HYDROXY)-FUNCTIONAL ORGANIC COMPOUNDS 有权
公开(公告)号：US20230119082A1
公开(公告)日：2023-04-20
申请号：US17794712
申请日：2021-01-21
申请人： COVESTRO (NETHERLANDS) B.V.
发明人： Gerardus Cornelis OVERBEEK , Patrick Johannes Maria STALS , Daan VAN DER ZWAAG , Alfred BÜCKMANN
IPC分类号： C08G18/28 , C08G18/08 , C08G18/32 , C08G18/38 , C08G18/73 , C08G18/75 , C08G18/30 , C08G18/48 , C08G18/24 , C08G18/12 , C08G18/76 , C08G18/22 , C08G18/79 , C08G18/34 , C08G18/66 , C08G18/02 , C08G18/67 , C08L63/00
摘要： The invention relates to particular (aziridinyl hydroxy)-functional organic component. The invention further relates to liquid compositions comprising said (aziridinyl hydroxy)-functional organic component. The invention further relates to coating compositions comprising said (aziridinyl hydroxy)-functional organic component. The invention further relates to liquid coating compositions comprising said (aziridinyl hydroxy)-functional organic component. The invention further relates to a kit-of-parts comprising in one of its parts a liquid composition comprising a particular (aziridinyl hydroxy)-functional organic component. The invention further relates to cured forms of said liquid compositions, coating compositions, and liquid coating compositions. The invention further relates to articles comprising the (aziridinyl hydroxy)-functional organic component and/or the liquid compositions and/or the liquid coating compositions and/or their cured forms. The invention further relates to various uses of the (aziridinyl hydroxy)-functional organic component and/or said liquid compositions, and/or said liquid coating compositions, and/or said kit-of-parts and/or said cured forms.

3. 发明申请

US20230089045A1 WATER-DISPERSIBLE POLYURETHANE 有权
公开(公告)号：US20230089045A1
公开(公告)日：2023-03-23
申请号：US17800428
申请日：2021-03-26
申请人： COVESTRO (NETHERLANDS) B.V.
发明人： Richard George COOGAN , Samantha MARCHETTI , Nikole SEIL , Ronald TENNEBROEK
IPC分类号： C08G18/12 , C08G18/42 , C08G18/36
摘要： The present invention relates to an aqueous dispersion comprising dispersed particles comprising a polyurethane comprising at least the following building blocks derived from a) at least one organic polyisocyanate, b) at least one carboxylate group-bearing isocyanate-reactive compound, and c) at least one organic isocyanate-reactive polyol, wherein at least one of the carboxylate group-bearing compounds b) has the following structural formula O II (1) R2(R3)—N—C—R1-COO− wherein R1 is a divalent aliphatic hydrocarbon radical having from 2 to 8 carbon atoms or a divalent cycloaliphatic hydrocarbon radical having from 6 to 8 carbon atoms or a divalent aromatic hydrocarbon radical having from 6 to 8 carbon atoms, R2 and R3 are 2-hydroxypropyl.

4. 发明申请

US20230084090A1 NON-POROUS MICROPARTICLES 有权
公开(公告)号：US20230084090A1
公开(公告)日：2023-03-16
申请号：US17791138
申请日：2020-12-02
申请人： COVESTRO (NETHERLANDS) B.V.
发明人： Antonia URMANOVA GROOTJEN , Robert VAN DEN BERG JETHS , Joseph Petronella FRIEDERICHS
IPC分类号： C08J3/21 , C08J3/12
摘要： The invention relates to microparticles and compositions thereof as each of them is described in the specification. The invention further relates to microparticles obtained by a process as described in the specification, compositions thereof. The invention further relates to cured compositions as well as to objects or kits-of-parts comprising the microparticles of the invention and/or the compositions thereof and/or the cured compositions thereof. The invention further relates to the use of the microparticles of the invention and/or the compositions thereof, for lowering the gloss of coatings. The invention further relates to the use of the microparticles of the invention and/or the compositions thereof, for making matte coatings. The invention further relates to the use of the microparticles of the invention and/or the compositions thereof, for making soft-touch coatings. The invention further relates to the use of the microparticles of the invention and/or the compositions thereof, for making matte coatings. The invention further relates to the use of the microparticles of the invention and/or the compositions thereof, for making soft-touch matte coatings. The invention further relates to the use of the microparticles of the invention and/or the compositions thereof, for making 3D-printed objects. The invention further relates to the use of the microparticles of the invention and/or the compositions thereof, for making absorbent and superabsorbent objects.

5. 发明申请

US20230069357A1 TWO-COMPONENT COATING SYSTEM 有权
公开(公告)号：US20230069357A1
公开(公告)日：2023-03-02
申请号：US17792098
申请日：2021-01-21
申请人： COVESTRO (NETHERLANDS) B.V.
发明人： Gerardus Cornelis OVERBEEK , Patrick Johannes Maria STALS , Daan VAN DER ZWAAG , Alfred Jean Paul BÜCKMANN
IPC分类号： C09D175/12
摘要： The present invention relates to a two-component coating system comprising a first component and a second component each of which is separate and distinct from each other, wherein the first component comprises a carboxylic acid functional polymer dissolved and/or dispersed in an aqueous medium, and the second component comprises a multi-aziridine compound having: a) from 2 to 6 of the following structural units (A): b) whereby m is an integer from 1 to 8; and o R′ and R″ are both H b) one or more linking chains wherein each one of these linking chains links two of the structural units A; c) one or more connecting groups whereby each one of the connecting groups connects two of the structural units A; and d) a molecular weight in the range from 840 Daltons to 5000 Daltons, wherein the molecular weight is measured using MALDI-TOF mass spectrometry.

6. 发明申请

US20230054196A1 MULTI-AZIRIDINE COMPOUND 有权
公开(公告)号：US20230054196A1
公开(公告)日：2023-02-23
申请号：US17791852
申请日：2021-01-21
申请人： COVESTRO (NETHERLANDS) B.V.
发明人： Gerardus Cornelis OVERBEEK , Patrick Johannes Maria STALS , Daan VAN DER ZWAAG , Alfred Jean Paul BÜCKMANN , Josephus Christiaan VAN OORSCHOT
IPC分类号： C07D203/10 , C08K5/3412 , C09D133/02 , C09D7/63
摘要： The present invention relates to a multi-aziridine compound having: a) at least 2 of the following structural units (A) whereby R1 is H; R2 and R4 are independently chosen from H, a linear group containing from 1 to 8 carbon atoms and optionally containing one or more heteroatoms, a branched or cyclic group containing from 3 to 8 carbon atoms and optionally containing one or more heteroatoms, phenyl, benzyl, or pyridinyl; R3 is chosen from a linear group containing from 1 to 8 carbon atoms and optionally containing one or more heteroatoms, a branched or cyclic group containing from 3 to 8 carbon atoms and optionally containing one or more heteroatoms, phenyl, benzyl, or pyridinyl; or R2 and R3 (in case R2 is different than H) may be part of the same cyclic group containing from 3 to 8 carbon atoms; R′ and R″ are independently H or an aliphatic hydrocarbon group containing from 1 to 12 carbon atoms; and b) a molecular weight of at least 600 Daltons, wherein the molecular weight is determined using MALDI-TOF mass spectrometry according to the description.

7. 发明授权

US11485865B2 Thermosetting compositions and forming three-dimensional objects therefrom 有权
公开(公告)号：US11485865B2
公开(公告)日：2022-11-01
申请号：US16344488
申请日：2017-10-30
申请人： Covestro (Netherlands) B.V.
发明人： Paulus Antonius Maria Steeman , Marco Marcus Matheus Driessen
IPC分类号： C09D11/101 , B33Y70/00 , B33Y10/00 , B29C64/124 , C09D11/102 , C08F290/06 , C09D11/104 , C09D11/107 , C09D11/30 , B29C64/153 , G03F7/038
摘要： Thermoset compositions and methods for forming three-dimensional articles via an additive fabrication process, and articles made therefrom are disclosed herein. In an embodiment, a composition comprises a first network-forming component comprising a TPA-based polyester comprising a backbone and having at least 2 polymerizable groups, one or more first network monomers, and a first network initiator. The backbone of the TPA-based polyester comprises the reaction product of a terephthalic acid and a polyol. The composition may further comprise a second network-forming component.

8. 发明申请

US20220324171A1 SPOOL FOR SUPPORTING A FILAMENT AND FILAMENT SPOOL 有权
公开(公告)号：US20220324171A1
公开(公告)日：2022-10-13
申请号：US17634266
申请日：2020-08-13
申请人： Covestro (Netherlands) B.V.
发明人： Felix NEUMANN , Maurice DALPIAZ , Paul KUPKA , Tim HOLTRICH
IPC分类号： B29C64/255 , B29C64/118 , B33Y30/00
摘要： The invention refers to a spool (10) for supporting a filament (90), comprising a first flange (21), a second flange (22) and a connector (30), the connector (30) connecting the first flange (21) and the second flange (22) and defining a winding surface (40) for winding the filament (90) about a winding axis (X). Thereat, a plurality of openings (33) is provided in the connector (30), the openings (33) running in radial direction (R). The invention also refers to a filament spool (80), comprising a spool (10) according to the invention and a filament (90), in particular a thermoplastic filament (90) for use in a 3D printer, the filament (90) being winded thereon.

9. 发明申请

US20220282003A1 LIQUID, HYBRID UV/VIS RADIATION CURABLE RESIN COMPOSITIONS FOR ADDITIVE FABRICATION 有权
公开(公告)号：US20220282003A1
公开(公告)日：2022-09-08
申请号：US17637161
申请日：2020-08-31
申请人： Covestro (Netherlands) B.V.
发明人： Tai Yeon Lee
IPC分类号： C08F2/50 , C08K5/03 , C08K5/55 , C08F222/10 , C08G59/24 , B29C64/129
摘要： Liquid radiation curable compositions are disclosed which are suitable for hybrid (i.e. cationic and free-radical) polymerization when processed via additive fabrication equipment utilizing sources of actinic radiation with peak spectral intensities in the UV/vis region. According to one aspect, the compositions possess a first photoinitiator that is an iodonium salt of a non-fluorinated borate anion. According to another aspect, the composition is substantially devoid of a Norrish Type I and/or Type II photoinitiator. Also disclosed are methods of creating three-dimensional parts via additive fabrication processes utilizing sources of actinic radiation with peak spectral intensities in the UV/vis region employing liquid radiation curable compositions suitable for hybrid polymerization, and the parts cured therefrom.

10. 发明授权

US11332625B2 Antimony-free radiation curable compositions for additive fabrication, and applications thereof in investment casting processes 有权
公开(公告)号：US11332625B2
公开(公告)日：2022-05-17
申请号：US15774034
申请日：2016-11-17
申请人： Covestro (Netherlands) B.V.
发明人： Tai Yeon Lee , Mike Scianna , Paulus Steeman , Marco Driessen , Johan Jansen , Sainath Vaidya
IPC分类号： C08F2/46 , C08F2/50 , C08G61/04 , C09D7/63 , B33Y70/00 , B33Y10/00 , C08G59/68 , C08G65/18 , C08G59/22 , B29C64/124 , B22C9/04 , C08G59/24 , C09D163/00 , B29K105/00
摘要： Radiation curable compositions for additive fabrication are described and claimed. Such compositions are particularly suited for investment casting applications, and include a cationically polymerizable component, a radically polymerizable component, a certain type of prescribed antimony-free, sulfonium salt-based cationic photoinitiator, and a free-radical photoinitiator. In other embodiments, the composition may also include a photosensitizer and/or a UV/absorber. Also described and claimed is a method for using a liquid radiation curable resin for additive fabrication with a certain type of prescribed antimony-free, sulfonium salt-based cationic photoinitiator and a certain type of prescribed photosensitizer in an investment casting process.

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