/Patent Tracker
SamsungGranted patentMaterials & manufacturingInterest 4/10

Samsung patents scratch-resistant coating that also repels water

Samsung has been granted a patent for a hard coating film made from a specific mix of acrylate resins. The coating is designed to be tough enough to resist scratches while remaining hydrophilic, meaning it attracts water rather than repelling it.

Why it mattersThis type of coating could be applied to smartphone screens or other electronic components to improve durability and how the surface interacts with moisture.

In the filing’s own words

A hard coating film comprising a cured (meth)acrylate-based resin having a water contact angle of 40° or less and a pencil hardness of 6H or greater at a 1 kilogram load, a hard coating composition used for the formation of the hard coating film, a method of forming the hard coating film, a laminate including the hard coating film, and an article including the laminate.

What exactly they claim (claim 1)

1. A laminate comprising: a substrate; and a single hard coating film disposed on the substrate, the single hard coating film comprising a cured (meth)acrylate-based resin, wherein the single hard coating film has an average water contact angle of 33.5° to 40° and a pencil hardness of 6H or greater at a 1 kilogram load, wherein the cured (meth)acrylate-based resin comprises a mixture of multifunctional monomer units and two or more monofunctional monomer units with a hydrophilic group, wherein the mixture of the multifunctional monomer units includes monomer units derived from a tetra(meth)acrylate monomer, a tri(meth)acrylate monomer, and a di(meth)acrylate monomer, wherein a weight ratio of the tetra(meth)acrylate monomer, the tri(meth)acrylate monomer, and the di(meth)acrylate monomer is 0.2-1.8:2.8-4.8:1, wherein a weight ratio of the multifunctional monomer units to the two or more monofunctional monomer units with the hydrophilic group is 1:1 to 1.5:1, wherein the two or more monofunctional units with the hydrophilic group comprises a monomer unit derived from methoxy polyethylene glycol (meth)acrylate and hydroxyethyl (meth)acrylate, wherein the two or more monofunctional monomer units with the hydrophilic group in the cured (meth)acrylate-based resin is 29 weight percent to 45 weight percent, based on the total weight of monomer units of the single hard coating film.

Facts

Company
Samsung (Samsung Electronics Co., Ltd.)
Official title
Hard coating composition, hard coating film obtained therefrom, laminate including hard coating film, method of forming hard coating film, and article including hard coating film
Patent number
US12747369B2
Application number
17548676
Filed
Dec 13, 2021
Granted
Sep 29, 2026
Inventors
6
Claims
11

Classified under

C09D 151/08 Chemistry & metals
Read the full filing (official PDF) ↗ Open in the Patent Tracker

More from Samsung in Materials & manufacturing

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.