Abstract

This invention deal with a flaky effect pigment comprising as optical active layer a single platelet consisting of a semiconductor material with a band gap in a range of 0.1 to 2.5 eV and having an average atomic composition of: a) Si(1-x)Gex, wherein 0

IPC Classes  ?

• C09C 1/00 - Treatment of specific inorganic materials other than fibrous fillers Preparation of carbon black
• C09D 5/03 - Powdery paints

Abstract

Disclosed herein is a flaky diffractive effect pigment having a diffractive structure and comprising a flake of a highly reflective material having a first major interface and opposed to this first interface a second major interface, and at least one side surface and directly adjacent on one or of both of these major interfaces a layer of a semiconducting material having a bandgap of 0.7 to 2.5 eV. The diffractive effect pigment may be further coated with a coating which is optically non-active in the visible wavelength region.

IPC Classes  ?

• A61K 8/02 - Cosmetics or similar toiletry preparations characterised by special physical form
• C09D 11/02 - Printing inks

Abstract

n, wherein 0

IPC Classes  ?

• A61K 8/02 - Cosmetics or similar toiletry preparations characterised by special physical form
• A61K 8/25 - SiliconCompounds thereof
• A61K 8/26 - AluminiumCompounds thereof
• C09C 1/00 - Treatment of specific inorganic materials other than fibrous fillers Preparation of carbon black
• C09C 1/64 - Aluminium

Abstract

(1-x)x(1-y)y(1-z)z(1-m-n)mnn, wherein 0 < m < 1.00, 0 < n < 1.00 with the provisos that x < 1.00; y < 1.00, z < 1.00 and m + n < 1.00.

IPC Classes  ?

• C09C 1/00 - Treatment of specific inorganic materials other than fibrous fillers Preparation of carbon black

Abstract

This invention deals with effect pigment mixture comprising a mixture of flaky single layered semiconductor effect pigments and flaky metal effect pigments or a mixture of flaky single layered semiconductor effect pigments with silvery absorbing pearlescent pigments, wherein the flaky single layered semiconductor effect pigments have a bandgap in a range of 0.1 to 3.9 eV.

IPC Classes  ?

• C09C 1/00 - Treatment of specific inorganic materials other than fibrous fillers Preparation of carbon black
• C09C 1/64 - Aluminium

Abstract

The present invention relates to an effect pigment having optically active layers consisting of a flake of a highly reflective material with directly adjacent on one side or on both sides a layer of a semiconducting material having a bandgap of 0.1 to 3.5 eV. The effect pigment may be further coated with a coating which is optically non-active in the visible wavelength region.

IPC Classes  ?

• C09C 1/00 - Treatment of specific inorganic materials other than fibrous fillers Preparation of carbon black

Abstract

The present invention relates to a flaky diffractive effect pigment having a diffractive structure and comprising a flake of a highly reflective material having a first major interface and opposed to this first interface a second major interface, and at least one side surface and directly adjacent on one or of both of these 5major interfaces a layer of a semiconducting material having a bandgap of 0.1 to 2.5 eV. The diffractive effect pigment may be further coated with a coating which is optically non-active in the visible wavelength region.

IPC Classes  ?

• C09C 1/00 - Treatment of specific inorganic materials other than fibrous fillers Preparation of carbon black
• A61K 8/02 - Cosmetics or similar toiletry preparations characterised by special physical form
• A61K 8/19 - Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
• C08K 3/013 - Fillers, pigments or reinforcing additives
• C09D 7/62 - Additives non-macromolecular inorganic modified by treatment with other compounds

Abstract

(1-x)nx(1-y)ny(1-m-n)mnn, wherein 0 < m < 1.00, 0 < n < 1.00 and with the proviso that m + n < 1.00.

IPC Classes  ?

• C09C 1/64 - Aluminium
• C09C 1/00 - Treatment of specific inorganic materials other than fibrous fillers Preparation of carbon black
• A61K 8/02 - Cosmetics or similar toiletry preparations characterised by special physical form
• A61K 8/19 - Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
• C08K 3/013 - Fillers, pigments or reinforcing additives
• C09D 7/62 - Additives non-macromolecular inorganic modified by treatment with other compounds

Abstract

(1-x)x(1-y)y(1-z)z(1-m-n)mnn, wherein 0 < m < 1.00, 0 < n < 1.00 with the provisos that x < 1.00; y < 1.00, z < 1.00 and m + n < 1.00. These effect pigments exhibit attractive optical properties and are radartransparent.

IPC Classes  ?

• C01B 33/02 - Silicon
• C09C 1/00 - Treatment of specific inorganic materials other than fibrous fillers Preparation of carbon black
• C09D 5/00 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes
• C23C 14/20 - Metallic material, boron or silicon on organic substrates
• C23C 14/24 - Vacuum evaporation

Abstract

The present invention relates to an effect pigment having optically active layers consisting of a flake of a highly reflective material with directly adjacent on one side or on both sides a layer of a semiconducting material having a bandgap of 0,1 to 3,5 eV. The effect pigment may be further coated with a coating which is optically non-active in the visible wavelength region.

IPC Classes  ?

• C09C 1/62 - Metallic pigments or fillers
• C09C 1/64 - Aluminium
• C09D 5/33 - Radiation-reflecting paints

Abstract

Processes for forming platelet materials, such as flakes, including but not limited to, metal flakes, such as aluminum flakes, are described. The processes involve the application of a release system to a support or drum which is subsequently dissolved to release one or more non-dissolving layer(s), such as one or more metal layer(s), formed thereon. A particular group of dispersing agents are described which when incorporated in the release system, lead to improved process efficiency and more consistent product. Additional features and aspects of the processes are described.

IPC Classes  ?

• C09C 1/00 - Treatment of specific inorganic materials other than fibrous fillers Preparation of carbon black
• C09C 1/64 - Aluminium
• C23C 14/00 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material

Abstract

A method of producing metal flakes (72') is provided. The method includes: applying a layer of ionic liquid (70) to a substrate (24); forming a layer of metal (70) on the substrate (24) over the ionic liquid (70); and removing the layer of metal (70) from the substrate (24).

IPC Classes  ?

• B22F 9/04 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
• B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
• C23C 16/00 - Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
• C23C 18/00 - Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coatingContact plating
• C23C 14/00 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material