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SamsungGranted patentMaterials & manufacturingInterest 3/10

Samsung patents steel sheet design for brighter refrigerator finishes

Samsung has patented a specific layering method for steel sheets used in home appliances like refrigerators. The design uses a primer, a basecoat with metallic flakes, a textured 'hairline' layer, and a clear top coat to create a shiny surface without using a metal mesh.

Why it mattersThis filing details a specific manufacturing process for appliance exteriors, which may result in slightly brighter or more durable finishes on future Samsung refrigerators and other household items.

In the filing’s own words

A PCM steel sheet for a home appliance and a refrigerator including the same. The PCM steel sheet may include a steel sheet, a basecoat layer provided on the steel sheet, a hairline layer formed on the basecoat layer, a clearcoat layer provided on the hairline layer, and a primer layer between the steel sheet and the basecoat layer to provide adhesion. The PCM steel sheet for a home appliance does not include a metal mesh layer. The PCM steel sheet for a home appliance may have a brightness (flop index) of about 20 or more.

What exactly they claim (claim 1)

1. A pre-coated metal (PCM) steel sheet for a home appliance, the PCM steel sheet comprising: a steel sheet; a basecoat layer provided on the steel sheet; a hairline layer formed on the basecoat layer; a clearcoat layer provided on the hairline layer; and a primer layer between the steel sheet and the basecoat layer to provide adhesion between the steel sheet and the basecoat layer, wherein the hairline layer comprises an acrylic resin, the basecoat layer comprises a metallic pigment, the metallic pigment in the form of elliptical particles having a major axis of about 12 to about 18 μm, and the PCM steel sheet is without a metal mesh layer so that the PCM steel sheet has a brightness (flop index) of about 20 or more.

Facts

Company
Samsung (SAMSUNG ELECTRONICS CO., LTD.)
Official title
Pre-coated metal steel sheet for home appliances and refrigerators including the same
Patent number
US12741297B2
Application number
18350486
Filed
Jul 11, 2023
Granted
Sep 22, 2026
Inventors
6
Claims
15

Classified under

B05D 7/14 Operations & transportB05D 7/57 Operations & transportC09D 7/61 Chemistry & metalsC09D 7/69 Chemistry & metalsC09D 7/70 Chemistry & metalsC09D 133/08 Chemistry & metals
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.