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Sunscreens Based on Phenolic-Formaldehyde Particles
Sun-protective polymeric particles using a micro emulsion polymerization by nucleation approach have been developed by researchers at the University of Arizona. The resulting resorcinol-formaldehyde is red to brown in color with strong absorption of UVA and UVB radiation, making it an ideal material for sunscreen. Resorcinol-formaldehyde has been widely...
Published: 8/1/2024
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Inventor(s): Douglas Loy, Robb Bagge, Nanayakkarawasan Pallage Nanayakkara
Keywords(s): nano-particles
Category(s): Technology Classifications > Healthcare Portfolios > Dermatology
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Sunscreens Prepared from Polydopamine and Poly (dopamine-co-cafeic acid)
This invention is synthetic eumelanin particles prepared by polymerization of dopamine that can be dispersed in water, glycerol or oil.
Background:
Sunscreen products in the market today are typically made of potentially harmful chemicals, including avobenzone, which releases cancer-causing free radicals, and oxybenzone, which has estrogenic properties...
Published: 8/1/2024
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Inventor(s): Douglas Loy, Robb Bagge, Nanayakkarawasan Pallage Nanayakkara
Keywords(s): nano-particles
Category(s): Technology Classifications > Healthcare Portfolios > Dermatology
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New Sunscreens Based on Particles Prepared from Higher Aldehydes and Phenols
This invention consists of particles that can be used as sunscreens prepared by the copolymerization of phenols with aromatic and conjugated aldehydes like cinnamaldehyde or benzaldehyde. These particles made of bio-based materials can be dispersed in liquid and function as thermosets for sun-blocking purposes.
Background:
Sunscreen products in the...
Published: 8/1/2024
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Inventor(s): Douglas Loy, Robb Bagge, Nanayakkarawasan Pallage Nanayakkara
Keywords(s): nanoparticles
Category(s): Technology Classifications > Healthcare Portfolios > Dermatology
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Particulate and Film Polymeric Dihydropyridazines as Sunscreens with Inherent Antioxidant Properties
This invention is a polymeric sunscreen that can be applied either as a film or as particles to be suspended in either water or oil.
Background:
Both UVB and UVA wavelengths penetrate the atmosphere, inducing skin cancers, eye damage and aging if not properly protected or treated. Common commercial sunscreens can block around 93% of UVB and UVA rays,...
Published: 8/1/2024
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Inventor(s): Douglas Loy, Wenmo Sun, Robb Bagge, Nanayakkarawasan Pallage Nanayakkara
Keywords(s):
Category(s): Technology Classifications > Materials, Technology Classifications > Healthcare Portfolios > Dermatology, Technology Classifications > Materials > Coatings, Technology Classifications > Materials > Polymers
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