Thermoelectric Materials and Devices Comprising Graphene
US-2015380625-A1 · Dec 31, 2015 · US
Cationic electrodeposition coating composition and coated article
US9617650B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9617650-B2 |
| Application number | US-201214113444-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 4, 2012 |
| Priority date | Apr 28, 2011 |
| Publication date | Apr 11, 2017 |
| Grant date | Apr 11, 2017 |
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- Title
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Abstract
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The present invention provides a cationic electrodeposition coating composition comprising: a specific amino group-containing modified epoxy resin (A); a blocked polyisocyanate curing agent (B); a water-soluble zirconium compound (C); and sulfamic acid, wherein the water-soluble zirconium compound (C) is present in an amount of 10 to 10,000 ppm, calculated as the mass of the elemental zirconium, relative to the mass of the cationic electrodeposition coating composition.
First claim
Opening claim text (preview).
The invention claimed is: 1. A coated article obtained by immersing a substrate to be coated, which has not been subjected to cationic electrodeposition, in a bath of a cationic electrodeposition coating composition comprising: an amino group-containing modified epoxy resin (A); a blocked polyisocyanate curing agent (B); a water-soluble zirconium compound (C); and sulfamic acid, wherein the cationic electrodeposition coating composition comprises the water-soluble zirconium compound (C) in an amount of 10 to 10,000 ppm, calculated as the mass of the elemental zirconium relative to the mass of the cationic electrodeposition coating composition, and wherein the amino group-containing modified epoxy resin (A) is a resin prepared by reacting an epoxy resin (A1) with an amino group-containing compound (a4), the epoxy resin (A1) being prepared by reacting a diepoxide compound (a1), a bisphenol-type epoxy resin (a2), and a bisphenol compound (a3), the diepoxide compound (a1) being represented by the following Formula (1), wherein n represents an integer of 1 to 50, and performing electrodeposition coating thereon by applying an electric current at a voltage of 75 to 370 V for 60 to 600 seconds to the substrate to be coated, wherein an acid concentration attributable to sulfamic acid in the cationic electrodeposition coating composition is within a range of 10 to 50 milligram equivalents of sulfamic acid per 100 g of a solids content of the coating composition. 2. A method for forming a film, the method comprising the steps of: immersing a substrate to be coated in a bath of the cationic electrodeposition coating composition according to claim 1 ; and applying electricity to the immersed substrate to be coated.
Assignees
Inventors
Classifications
for electrophoretic applications (processes for coating by electrophoresis C25D13/00) · CPC title
Pretreatment · CPC title
Cathodic paints (C09D5/4403 - C09D5/4476 take precedence) · CPC title
from compounds containing nitrogen and active hydrogen, the nitrogen atom not being part of an isocyanate group · CPC title
Reaction products of epoxy resins with at least equivalent amounts of amines · CPC title
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- What does patent US9617650B2 cover?
- The present invention provides a cationic electrodeposition coating composition comprising: a specific amino group-containing modified epoxy resin (A); a blocked polyisocyanate curing agent (B); a water-soluble zirconium compound (C); and sulfamic acid, wherein the water-soluble zirconium compound (C) is present in an amount of 10 to 10,000 ppm, calculated as the mass of the elemental zirconium…
- Who is the assignee on this patent?
- Okada Eisaku, Takezoe Kouji, Hayashi Hirokazu, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification C25D9/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 11 2017 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).