-
公开(公告)号：US20240287281A1
公开(公告)日：2024-08-29
申请号：US18559811
申请日：2022-05-11
申请人： BASF SE
IPC分类号： C08K3/08 , B42D25/324 , B42D25/364 , B42D25/41 , B42D25/425 , C08K5/49 , C08K7/00
CPC分类号： C08K3/08 , B42D25/324 , B42D25/364 , B42D25/41 , B42D25/425 , C08K5/49 , C08K7/00 , C08K2201/003
摘要： The present invention relates to compositions, comprising
(A) platelet-shaped transition metal particles, wherein the number mean diameter of the platelet-shaped transition metal particles, present in the composition, is in the range of from 15 nm to 1000 nm, the transition metal is selected from silver, copper, gold and palladium, especially silver and copper, very especially silver;
(B) one, or more reactive diluents (B);
(C) one, or more oligomers (C);
(D) one, or more photoinitiators (D);
(E) at least a surfactant (E), which is a block copolymer, comprising at least a block A and a block B, wherein
a) the block A comprises
a1) monomer units (A1) derived from a compound selected from alkyl (meth)acrylates, alkyl (meth)acrylamides, or any mixture thereof, and
a2) monomer units (A2) derived from a hydroxy group, or ether group containing alkyl (meth)acrylate;
b) the block B comprises monomer units (B) derived from a compound selected from fluorinated (meth)acrylic esters of formula
H2C═CR46(C(O)ORF-1) (XX), wherein
R46 is H, or a methyl group; and
RF-1 is an organic residue containing a perfluorinated alkyl group;
(F) optionally one, or more polymeric binders;
(F) optionally one, or more solvents; and
(H) optionally further additives.
The coatings, obtained with said compositions, show one color, when observed in transmission and another color, when observed in reflection on both sides of the cured coating.-
公开(公告)号：US20230312944A1
公开(公告)日：2023-10-05
申请号：US18021638
申请日：2021-08-18
申请人： BASF SE
摘要： The present invention relates to coating compositions, comprising i) single or mixed metal oxide nanoparticles, wherein the volume average diameter (Dv50) of the metal oxide nanoparticles is in the range of 1 to 20 nm; the nanoparticles comprise at least one volatile surface-modifying compound selected from alcohols, β-diketones, or salts thereof; carboxylic acids and β-ketoesters and Ge mixtures thereof, wherein the total amount of volatile surface-modifying compounds is at least 5% by weight, preferably at least 10% by weight based on the amount of metal oxide nano-particles, and ii) a solvent, coatings obtained therefrom and the use of the comositions for coating surface relief micro- and nanostructures (e.g. holograms), manufacturing of optical waveguides, solar panels, light outcoupling layers for display and lighting devices and anti-reflection coatings. Coatings obtained from the coating composition have a high refractive index and holograms are bright and visible from any angle, when the coating compositions are applied to them.
-
公开(公告)号：US20230241675A1
公开(公告)日：2023-08-03
申请号：US17918918
申请日：2021-04-16
申请人： BASF SE
CPC分类号： B22F1/0551 , B22F1/102 , B22F1/052 , C09D11/037 , C09D5/29 , C09D7/70
摘要： The present invention relates to compositions, comprising platelet-shaped transition metal particles, wherein the number mean diameter of the platelet-shaped transition metal particles, present in the composition, is in the range of 15 nm to 1000 nm and the number mean thickness of the platelet-shaped transition metal particles, present in the composition, is in the range of 2 to 40 nm, the transition metal is selected from silver, copper, gold and palladium and the platelet-shaped transition metal particles bear a surface modifying agent of formula A-(CHR9)r—R10 (V), wherein if r is 1, A is a C1-C25alkyl group substituted with one, or more fluorine atoms; a C2-C25alkenyl substituted with one, or more fluorine atoms; a C2-C25alkynyl group substituted with one, or more fluorine atoms; a C3-C20cycloalkyl group substituted with one, or more fluorine atoms; or a C6-C24aryl group substituted with one, or more fluorine atoms, CF3 or —O—CF3 groups; if r is 0, A is a C6-C24aryl group substituted with one, or more fluorine atoms, CF3 or —O—CF3 groups; or a C7-C24aralkyl group substituted with one, or more fluorine atoms, CF3 or —O—CF3 groups;
R9 is H, or a C1-C4alkyl group; and R10 is a thiol group, or an amino group.
Surface modification with fluorinated thiols/amines allows to tune the surface properties of silver nanoplatelets in such a way, as to, on the one hand, make them dispersible and colloidally stable in the finished printing ink system, and on the other hand, allow them to migrate to the substrate and print surfaces upon drying of the solvent in the printed layer.-
公开(公告)号：US20220389245A1
公开(公告)日：2022-12-08
申请号：US17760782
申请日：2020-09-14
申请人： BASF SE
IPC分类号： C09D11/037 , C01G23/053 , C09C1/36 , C09C3/08 , C09D11/101 , C09D11/107 , B42D25/373
摘要： The present invention relates to metal oxide nanoparticles, a method for their production, a coating, or printing composition, comprising the metal oxide nanoparticles and the use of the composition for coating of surface relief micro- and nanostructures (e.g. holograms), manufacturing of optical waveguides, solar panels, light outcoupling layers for display and lighting devices and anti-reflection coatings. Holograms are bright and visible from any angle, when coated, or printed with the composition, comprising the metal oxide nanoparticles.
-
公开(公告)号：US20240309174A1
公开(公告)日：2024-09-19
申请号：US18275435
申请日：2022-01-31
申请人： BASF SE
CPC分类号： C08K3/08 , B22F1/0545 , B22F1/0551 , B22F9/24 , B22F10/12 , B33Y70/00 , C08K2003/0806 , C08K2201/005 , C08K2201/011
摘要： The present invention relates to radically curable compositions, comprising (A) silver nanoplatelets, (B) one reactive diluent comprising 1 to 4 (meth)acrylate groups; (C) one, or more urethane (meth)acrylates (C), which are obtainable by reaction of the following components:
(a) at least one isocyanate having two isocyanate groups,
(b) at least one polyalkylene oxide polyether having at least 2 hydroxyl groups,
(c) at least one hydroxy-functional (meth)acrylate having one hydroxyl group and one (meth)acrylate group,
(d) at least one compound having at least one isocyanate reactive group and at least one acid function,
(e) if component (d) is present, optionally at least one basic compound which is present for neutralization or partial neutralization of the acid groups of component (d),
(f) optionally at least one monoalcohol having one hydroxy function, and
(g) optionally at least one compound having at least one primary and/or secondary amino group;
(D) one, or more photonitiators; printing inks containing the compositions and their use for the production security products. Coatings obtained after curing of the compositions, show one color, when observed in transmission and another color, when observed in reflection on both sides of the cured coating. The metal-like reflection of the coatings may be further enhanced by the presence of surfactants.-
公开(公告)号：US20220220284A1
公开(公告)日：2022-07-14
申请号：US17608644
申请日：2020-04-23
申请人： BASF SE
IPC分类号： C08K9/04 , C08K3/08 , C09D7/62 , C09D7/40 , B42D25/373
摘要： The present invention relates to compositions, comprising silver nanoplatelets, wherein the number mean diameter of the silver nanoplatelets, present in the composition, is in the range of 50 to 150 nm with standard deviation being less than 60% and the number mean thickness of the silver nanoplatelets, present in the composition, is in the range of 5 to 30 nm with standard deviation being less than 50%, wherein the mean aspect ratio of the silver nanoplatelets is higher than 2.0 and the highest wavelength absorption maximum of the population of all silver nanoplatelets in the composition being within the range of 560 to 800 nm. A coating, comprising the composition, shows a blue color in transmission and a metallic yellow color in reflection.
-
公开(公告)号：US20210402466A1
公开(公告)日：2021-12-30
申请号：US17288207
申请日：2019-10-21
申请人： BASF SE
摘要： The present invention relates to compositions, comprising silver nanoplatelets, wherein the mean diameter of the silver nanoplatelets, present in the composition, is in the range of 20 to 70 nm with standard deviation being less than 50% and the mean thickness of the silver nanoplatelets, present in the composition, is in the range of 5 to 30 nm with standard deviation being less than 50%, wherein the mean aspect ratio of the silver nanoplatelets is higher than 1.5, a process for its production, printing inks containing the compositions and their use in security products. The highest wavelength absorption maximum of the population of all silver nanoplatelets in the composition being within the range of 450 to 550 nm. A coating, comprising the composition, shows a red, or magenta color in transmission and a greenish-metallic color in reflection.
-
-
-
-
-
-
搜索结果
7 条记录 (耗时 0.015 秒)
