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US 10,851,260 B2Granted
Anti-scratch coating
AssigneeAgency for Science, Technology and Research
InventorsLiang Hong, Siok Wei Tay, William Sai Yau Wong
Life of this patent
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Abstract
This invention relates to a hybrid composite polymer matrix, assembled by integrating two polymer networks, as an anti-scratch coating for automobiles. The two types of particulate silane cross-liners are utilized to construct two respective hybrid polymer networks with a unique chain-from-particle structure. At least one hybrid network is a covalently bound network that is interlocked with at least one physically bound hybrid network.
Claims7
A polymer composition comprising:
- a) 30 to 50 wt % of a 300,000 to 500,000 molecular weight poly(vinyl) polymer,
- b) 3 to 30 wt % of a silane,
- c) 3 to 30 wt % of a polyhedral oligomeric silsesquioxane cage component,
- d) 5 to 25 wt % of a functionalized vinyl monomer, and
- e) 3 to 30 wt % of a vinyl monomer.
2 more elements
A process for making a polymer coating comprising:
- a) preparing a polymer composition comprising:
- i) 30 to 50 wt % of a 300,000 to 500,000 molecular weight poly(vinyl) polymer,
- ii) 3 to 30 wt % of a silane,
- iii) 3 to 30 wt % of a polyhedral oligomeric silsesquioxane cage component,
- iv) 5 to 25 wt % of a functionalized vinyl monomer, and
- v) 3 to 30 wt % of a vinyl monomer, by mixing components i) through v) and optionally adding a radical polymerization initiator,
- b) homogenizing the mixture,
- c) coating a substrate with the obtained mixture,
- d) starting, a radical polymerization, and
- e) curing the prepared coated film at elevated temperature.
7 more elements
Dependencies are inferred from the claim text.