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1. 发明授权

US09845379B2 Polysiloxane-polycarbonate block cocondensates 有权
公开(公告)号：US09845379B2
公开(公告)日：2017-12-19
申请号：US15027761
申请日：2014-10-06
申请人： Covestro Deutschland AG
发明人： Alexander Meyer , Klaus Horn , Thomas Pfingst , Sebastian Wetzel
IPC分类号： C08G64/18 , C08G77/448
CPC分类号： C08G64/186 , C08G77/448
摘要： The present invention relates to polysiloxane-polycarbonate block cocondensates comprising particular rearrangement structures and having improved rheological properties and melt stability as well as to mouldings and extrudates made from these polysiloxane-polycarbonate block cocondensates.

2. 发明授权

US09845378B2 Process for preparing polysiloxane-polycarbonate block cocondensates 有权
公开(公告)号：US09845378B2
公开(公告)日：2017-12-19
申请号：US15027743
申请日：2014-10-06
申请人： Covestro Deutschland AG
发明人： Alexander Meyer , Klaus Horn , Thomas Pfingst , Sebastian Wetzel
IPC分类号： C08G64/18 , C08G77/448 , C08G77/16
CPC分类号： C08G64/186 , C08G77/16 , C08G77/448 , C08L83/04 , C08L69/00
摘要： The present invention relates to a process for preparing polysiloxane-polycarbonate block cocondensates proceeding from specific polycarbonates and hydroxyaryl-terminated polysiloxanes.

3. 发明申请

US20230093326A1 Polyester Carbonates on the Basis of Cycloaliphatic Diacids, 1,4:3,6-Dianhydrohexitol and Specific Amounts of an Additional Aliphatic Dihydroxy Compound 有权
公开(公告)号：US20230093326A1
公开(公告)日：2023-03-23
申请号：US17919146
申请日：2021-06-11
申请人： Covestro Deutschland AG
发明人： Alexander Meyer , Lukas Fabian Schulz , Thomas Pfingst
IPC分类号： C08G63/672
摘要： The present invention relates to a process for preparing a polyester carbonate on the basis of cycloaliphatic diacids and at least one 1,4:3,6-dianhydrohexitol and at least one additional aliphatic dihydroxy compound, to the polyester carbonate prepared according to the process and to a molding compound and a molding body containing the polyester carbonate. The process according to the invention is a direct synthesis, in which all structural elements forming the subsequent polyester carbonate are present as monomers already in the first process step. It is characterized in that a specific ratio of 1,4:3,6-dianhydrohexitol and the at least one additional aliphatic dihydroxy compound is advantageous.

4. 发明授权

US11440382B2 Transparent multilayer structure for thermal management 有权
公开(公告)号：US11440382B2
公开(公告)日：2022-09-13
申请号：US16461417
申请日：2017-11-16
申请人： Covestro Deutschland AG
发明人： Alexander Meyer , Rafael Oser , Dirk Hinzmann , Timo Kuhlmann
IPC分类号： B60J3/00 , B32B27/08 , B32B27/20 , B32B27/36 , B32B7/027 , B32B7/12 , B60J1/00
摘要： The invention relates to transparent multilayer structures and glazings or glazing elements comprising said multilayer structures, which are suitable for screening an indoor space from a radiation source, comprising, in this order a) optionally a protective layer a, b) a substrate layer based on a thermoplastic polymer, especially an aromatic polycarbonate, having a luminous transmittance in the range of 380 to 780 nm of at least 0.3%, determined at a layer thickness of 4 mm according to DIN ISO 13468-2:2006 (D65, 10°), and a TDS value of less than 40%, determined according to ISO 13837:2008 at a layer thickness of 4 mm, the substrate layer containing at least 0.001 wt. % of an IR absorber different from carbon black, c) if necessary, another layer c based on a thermoplastic polymer with a maximum thickness of 600 μm, d) at least one metal layer d, containing at least one element selected from the group including Ag, Al, Au, Pt, Fe, Cr, Sn, In, Ti, Pd, Nb, Cu, V or their alloys, the sum of thicknesses of all metal layers being 1 nm to not more than 30 nm, and e) optionally a protective layer e, at least 60% of the substrate layer b being covered by metal layer d, the layers following layer d, including the protective layer e, when added up, having a thickness of not more than 100 nm and the metal layer being applied to the side of the substrate layer b designed to be on the face of the multilayer structure facing away from the radiation source.

5. 发明授权

US09845412B2 Multi-layer body made of polycarbonate with high weathering resistance 有权
公开(公告)号：US09845412B2
公开(公告)日：2017-12-19
申请号：US14654692
申请日：2013-12-18
申请人： Covestro Deutschland AG
发明人： Alexander Meyer , Vincenzo Taravella , Gianmaria Malvestiti
IPC分类号： B32B27/00 , C09D183/06 , C08J7/04 , G02B1/04 , B05D5/06 , B05D7/02 , B05D7/00 , C08K5/08 , C08K5/3417 , C08K5/3445 , C08K5/3465 , B32B27/36 , C08K5/00 , G02B5/22 , C08K5/103 , C08K5/18
CPC分类号： C09D183/06 , B05D5/061 , B05D7/02 , B05D7/544 , B05D7/546 , B32B27/365 , C08J7/042 , C08J7/047 , C08J2300/22 , C08J2369/00 , C08J2433/04 , C08J2475/04 , C08J2483/04 , C08K5/0041 , C08K5/005 , C08K5/08 , C08K5/103 , C08K5/18 , C08K5/3417 , C08K5/3445 , C08K5/3465 , G02B1/04 , G02B5/223 , C08L69/00 , C08L83/04
摘要： Disclosed is a multi-layer body with high weathering resistance comprising (a) a substrate layer containing at least one thermoplastic polymer (b) one cover layer on at least one side of the substrate layer, characterized in that the substrate layer further contains: (a1) at 0.02 wt. % to 0.2 wt %, at least one colorant on the basis of anthraquinone of structure (1) or (2) with structure (1), R1 and R2 standing, independently of each other, for H, OH, OR5 NH2 and NHR5, R5 being selected from alkyl, cycloalkyl, phenyl and substituted and annulated phenyls, and R3 standing for H, alkyl, alkoxy, and R4 standing for H, OH and p-methylphenyl-NH—; and with structure (2): (a2) at 0.01 wt % to 1.00 wt. %, one or a plurality of demolders, and the cover layer consisting of a coating on the basis of polysiloxane or on the basis of polyacrylate or on the basis of polyurethane acrylate, containing at least one UV-absorber and having a layer thickness of 2-15 [mu]m.

6. 发明授权

US11351764B2 Opaque multi-layer body of polycarbonate for heat management 有权
公开(公告)号：US11351764B2
公开(公告)日：2022-06-07
申请号：US16461431
申请日：2017-11-16
申请人： Covestro Deutschland AG
发明人： Alexander Meyer , Rafael Oser , Dirk Hinzmann , Timo Kuhlmann
IPC分类号： B32B27/36 , B32B15/09 , B32B27/30 , B32B27/08 , B32B7/12 , B32B15/18 , B32B15/20
摘要： The invention relates to a vehicle body part, comprising a multi-layer body, comprising, in this order, a) optionally a protective layer a, b) a substrate layer b based on a thermoplastic polymer, having a light transmittance of less than 1.0% in the range of 380 to 780 nm, determined at a layer thickness of 4 mm in accordance with DIN ISO 13468-2:2006 (D65, 10°), and an energy transmittance TDS of less than 40%, determined in accordance with ISO 13837:2008 at a layer thickness of 4 mm, c) optionally a further layer c based on a thermoplastic polymer having a maximum thickness of 600 μm, d) a metal layer d, containing at least one element selected from Ag, Al, Au, Pt, Fe, Cr, Sn, In, Ti, Pd, Nb, Cu, V, stainless steel or alloys thereof, having a thickness of 40 nm to 500 μm, and e) optionally a protective layer e, wherein the metal layer d is arranged on the side of the multi-layer body that is intended to be oriented toward the vehicle interior and wherein the layers following the layer d), including the protective layer e, have a total thickness of at most 50 nm.

7. 发明授权

US10717871B2 Flame-retardant, glass fiber-containing molding compounds containing siloxane-containing polycarbonate block co-condensate 有权
公开(公告)号：US10717871B2
公开(公告)日：2020-07-21
申请号：US15544277
申请日：2016-01-18
申请人： Covestro Deutschland AG
发明人： Alexander Meyer , Klaus Horn , Timo Kuhlmann , Michael Erkelenz , Ulrich Liesenfelder
IPC分类号： C08L83/10 , C08G77/448 , C08L69/00 , C08K3/22 , C08K7/14 , C08L27/18 , C08K5/42
摘要： The present invention relates to flame-retardant moulding compositions comprising glass fibre and siloxane-containing polycarbonate block cocondensate, and also to a process for the production of these moulding compositions. The invention further relates to the use of these flame-retardant moulding compositions in injection-moulding and extrusion applications.

8. 发明授权

US09823393B2 Metallized multilayer structure made of specific polycarbonates with low coefficient of thermal expansion 有权
公开(公告)号：US09823393B2
公开(公告)日：2017-11-21
申请号：US14360990
申请日：2012-11-23
申请人： Covestro Deutschland AG
发明人： Alexander Meyer , Martin Doebler , Ulrich Grosser , Rafael Oser , Birte Sämisch , Thomas Grimm
IPC分类号： G02B5/08 , B29C45/00 , B29C47/08 , B32B27/36 , F21S8/10 , C08G64/14 , C23C14/20 , B32B15/08 , B32B27/20 , B32B27/28 , B29K69/00
CPC分类号： G02B5/0808 , B29C45/0053 , B29C47/08 , B29C2045/0079 , B29K2069/00 , B32B15/08 , B32B27/20 , B32B27/283 , B32B27/365 , B32B2264/102 , B32B2264/104 , B32B2307/308 , B32B2307/702 , B32B2457/00 , C08G64/14 , C23C14/20 , F21S41/37 , Y10T428/24967 , Y10T428/25 , Y10T428/252 , Y10T428/265 , Y10T428/31507
摘要： The invention relates to multilayer structures made of at least one thermoplastic material and having at least one metal layer. The invention further relates to multilayer products encompassing at least three layers comprising a substrate layer made of a substrate comprising specific copolycarbonates and at least one inorganic filler, a metal layer and one or more further layers. The invention further relates to the process for producing the said multilayer structures.

9. 发明授权

US11512181B2 Laser beam-permeable substrate material for use on sensors 有权
公开(公告)号：US11512181B2
公开(公告)日：2022-11-29
申请号：US16607247
申请日：2018-04-23
申请人： Covestro Deutschland AG
发明人： Ulrich Grosser , Alexander Meyer , Andreas Klein
IPC分类号： C08K5/3437 , G01S17/931 , C08K5/18 , C08K5/3445 , C08K5/3465 , C08K5/375 , C08L69/00 , C09B1/16 , C09B57/00 , G01S7/481
摘要： The invention relates to a vehicle utilizing a LiDAR sensor system for driver assistance systems. A composition consisting of a thermoplastic material based on polycarbonate, polyester carbonate and/or polymethylmethacrylate is used here for forming a cover for the sensor against the surroundings.

10. 发明授权

US11207871B2 Bezel for motor vehicle glazing systems 有权
公开(公告)号：US11207871B2
公开(公告)日：2021-12-28
申请号：US16535332
申请日：2019-08-08
申请人： Covestro Deutschland AG
发明人： Roland Brambrink , Florian Dorin , Alexander Meyer , Peter Capellen , Manfred Nawroth
IPC分类号： B32B3/10 , B32B27/08 , B32B27/30 , B32B27/32 , B32B27/34 , B32B27/36 , B32B3/30 , B32B27/28 , B32B1/00 , B32B27/18
摘要： The invention relates to trims for motor vehicle glazing systems, comprising a base layer and a coating and having glass-like optical properties at least in some subsections, composites consisting of such trims for motor vehicle glazing systems, and car body parts, as well as preferred embodiments which comprise suitable combinations of materials. Said trims comprising, at least towards the front side thereof, an edge rounding having a variable radius which allows a more uniform layer thickness for the coating.

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