Ultra-fast curing scratch-resistant headlight restoration coating
AssigneeIllinois Tool Works Inc.
InventorsMehdi Habibpour, Grant Shouldice
Life of this patent
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Abstract
A composition is also provided that includes mercapto modified resin; aliphatic urethane acrylate; a multifunctional crosslinking agent; photoinitiator; and a hindered amine light stabilizer. The composition provides a fast curing coating that utilizes photopolymerization reactions using a variety of light sources such as low energy consuming and environmentally-friendly UV-LED and sunlight. Features of the coating include clarity, hardness, non-yellowing, scratch resistance, and complete surface cure as well as outstanding adhesion to substrates such as plastic, wood, stone and metal.
Claims20
A headlight restoration composition comprising:
- a mercapto modified resin consisting of mercapto-modified polyester acrylate resin, mercapto-modified siloxane resin, or a combination thereof;
- an acrylate resin;
- a multifunctional crosslinking agent;
- a photoinitiator reactive to ultraviolet light and being a bisacylphosphine oxide;
- and
- a hindered amine light stabilizer;
- wherein the composition light cures to a pencil hardness of 4H.
Dependencies are inferred from the claim text.