Lamp black pigment containing electrodeposition coating material compositions
US-2022396892-A1 · Dec 15, 2022 · US
Use of bismuth subnitrate in electro-dipping paints
US9493660B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9493660-B2 |
| Application number | US-67320208-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 13, 2008 |
| Priority date | Aug 16, 2007 |
| Publication date | Nov 15, 2016 |
| Grant date | Nov 15, 2016 |
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- Title
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Abstract
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Cathodically depositable electrocoat materials comprising basic bismuth nitrate, further comprising at least one binder having reactive functional groups and at least one crosslinker containing the complementary reactive functional groups which are able to enter into thermal crosslinking reactions.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of electrocoating a substrate, comprising applying to a substrate having one or more electrically conductive surfaces in a cathodic electrodeposition process a cathodically depositable electrocoat material produced by a process comprising mixing and homogenizing at least one binder, at least one crosslinking agent, and a bismuth nitrate crosslinking catalyst consisting of a water-insoluble basic bismuth nitrate, and baking the electrocoat material at a temperature which is at least 5-10° C. lower than a baking temperature of an electrocoat material which is devoid of the water insoluble basic bismuth nitrate and sufficient to produce a same or similar degree of crosslinking as the electrocoat material. 2. The method of claim 1 wherein the applied electrocoat material produces a primer coat. 3. The method of claim 1 wherein the substrate comprises a motor vehicle or part thereof. 4. A method of crosslinking a cathodically depositable electrocoat material, comprising using a water-insoluble basic bismuth nitrate as a crosslinking catalyst in the absence of water-soluble bismuth salts in the cathodically depositable electrocoat material and baking the electrocoat material at a baking temperature that is at least 5-10° C. lower than a baking temperature of an electrocoat material which is devoid of the water-insoluble basic bismuth nitrate and sufficient to produce a same or similar degree of crosslinking as the electrocoat material.
Assignees
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Classifications
Masked aromatic polyisocyanates · CPC title
Phenols · CPC title
Reaction products of epoxy resins with less than equivalent amounts of compounds containing active hydrogen added before or during the reaction with the isocyanate component (with amines C08G18/584) · CPC title
containing ammonium groups or groups forming them · CPC title
- C09D5/4496Primary
characterised by the nature of the curing agents · CPC title
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- What does patent US9493660B2 cover?
- Cathodically depositable electrocoat materials comprising basic bismuth nitrate, further comprising at least one binder having reactive functional groups and at least one crosslinker containing the complementary reactive functional groups which are able to enter into thermal crosslinking reactions.
- Who is the assignee on this patent?
- Grosse Brinkhaus Karl-Heinz, Neumann Margret, Johannpoetter Oliver, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification C09D5/4496. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Nov 15 2016 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).