Magnetic pigments
US-10253191-B2 · Apr 9, 2019 · US
Pearlescent pigments based on fine and thin substrates
US11230643B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11230643-B2 |
| Application number | US-93781809-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 15, 2009 |
| Priority date | Apr 15, 2008 |
| Publication date | Jan 25, 2022 |
| Grant date | Jan 25, 2022 |
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Abstract
Official abstract text for this publication.
Pearlescent pigments including a largely transparent platelet-shaped substrate having a density ρ S and at least one optically active coating having a density ρ M , the substrate having an average size d 50 of 3 to 8 μm and an average height h S of 40 to 110 nm. The disclosure further relates to a method for producing the pearlescent pigments, and also to the use thereof.
First claim
Opening claim text (preview).
What is claimed is: 1. Pearlescent pigments, each pearlescent pigment in the pearlescent pigments comprising a largely transparent platelet-shaped substrate and at least one optically active coating, wherein the platelet-shaped substrates in the pearlescent pigments have a d 50 of 3 to 8 μm and an average height h S of 40 to 110 nm, and wherein a standard deviation for the height h S of each said substrate is in a range of from 25% to 80%. 2. The pearlesce…
Assignees
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Classifications
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
- C09C1/0015Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US11230643B2 cover?
- Pearlescent pigments including a largely transparent platelet-shaped substrate having a density ρ S and at least one optically active coating having a density ρ M , the substrate having an average size d 50 of 3 to 8 μm and an average height h S of 40 to 110 nm. The disclosure further relates to a method for producing the pearlescent pigments, and also to the use thereof.
- Who is the assignee on this patent?
- Gruener Michael, Schmidt Ulrich, Kaupp Guenter, and 6 more
- What technology area does this patent fall under?
- Primary CPC classification C09C1/0015. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 25 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).