Hallstar Innovations Corp.

Cph Innovations Corporation

The C.p. Hall Company

Nanophase Technologies Corporation

Anna Pavlovic

Craig Alan Bonda

Jean Zhang

Urvil B Shah

Anthony J O'Lenick, Jr

Harry W Sarkas

Stephen O'Rourke

Kevin Cureton

Harold G Judd

A coated powder comprises (a) particles, and (b) a coating, on the surface of the particles. The surface coating comprises (1) optionally silica moieties, (2) organo oxysilane moieties selected from the group consisting of mono-organo oxysilane moieties, bi-organo oxysilane moieties and tri-organo oxysilane moieties, and (3) optionally organo-substituted polysiloxane moieties. The organo oxysilane moieties each have the formula R'SiO, with n=1, 2 or 3, and each R&#x2032; group is independently selected from the group consisting of alkyl, alkenyl, alkynyl, esters, amides, and at least one aromatic moiety having an absorption band maximum in the region of 280 nm to 780 nm.

Functionalized siloxane or polysiloxane coated particles with enhanced light filtering properties

A method of reducing photodegradation of a coenzyme Qcompound when exposed to UV radiation in a composition containing said coenzyme Qcompound comprising combining with said coenzyme Qcompound a compound of formula (I) in an amount effective to quench singlet excited state energy from the coenzyme Qcompound and transfer the singlet excited state energy from the coenzyme Qcompound to the compound of formula (I),  wherein one of Rand Ris a straight or branched chain C-Calkoxy radical, and the non-alkoxy Ror Ris hydrogen; and Ris a straight or branched chain C-Calkyl radical, thereby photostabilizing the retinoid compound.

Photostabilization of coenzyme Q compounds with alkoxycrylene compounds

The photostabilizing electronic excited state energy&#x2014;particularly singlet state energy from retinoid compounds&#x2014;has been found to be readily transferred to (accepted by) &#x3b1;-cyanodiphenylacrylate compounds having an alkoxy radical in the four (para) position (hereinafter 'alkoxycrylenes') on one of the phenyl rings having the formula (I): wherein one of Rand Ris a straight or branched chain C-Calkoxy radical, preferably C-C, more preferably methoxy, and the non-alkoxy radical Ror Ris hydrogen; and Ris a straight or branched chain C-Calkyl radical, preferably C-C. The alkoxycrylene compounds of formula (I) significantly increase the photostability of retinoid compounds in a composition by at least 3-fold.

Photostabilization of retinoids with alkoxycrylene compounds

The photostabilizing electronic excited state energy&#x2014;particularly singlet state energy from retinoid compounds&#x2014;has been found to be readily transferred to (accepted by) &#x3b1;-cyanodiphenylacrylate compounds having an alkoxy radical in the four (para) position (hereinafter 'alkoxycrylenes') on one of the phenyl rings having the formula (I): wherein one of Rand Ris a straight or branched chain C-Calkoxy radical, preferably C-C, more preferably methoxy, and the non-alkoxy radical Ror Ris hydrogen; and Ris a straight or branched chain C-Calkyl radical, preferably C-C. The alkoxycrylene compounds of formula (I) significantly increase the photostability of retinoid compounds in a composition by at least 3-fold and as much as 10-fold or greater. The ability of the alkoxycrylene compounds to stabilize the retinoid compound is concentration dependent, with the amount of retinoid photostabilization increasing with the concentration of the alkoxycrylene compound.

The photostabilizing electronic excited state energy&#x2014;particularly singlet state energy from a UV-absorbing molecule has been found to be readily transferred to (accepted by) &#x3b1;-cyanodiphenylacrylate compounds of formulas (I) and (V) having an alkoxy radical preferably in the four (para) position (hereinafter methoxycrylenes) on one or both of the phenyl rings: wherein at least one of Rand Ris a straight or branched chain C-Calkoxy radical, preferably C-C, more preferably C-C, and most preferably methoxy, and any non-alkoxy radical Ror Ris hydrogen; and Ris a straight or branched chain C-Calkyl radical, preferably C-C, more preferably C; wherein A and B are the same or different and are selected from the group consisting of oxygen, amino and sulfur; Rand Rare the same or different and are selected from the group consisting of C-Calkyl, C-Calkylene, C-Calkyne, C-Ccycloalkyl, C-Csubstituted alkylene, C-Csubstituted alkyne, aryl, substituted aryl, heteroaryl, heterocycloalkyl, substituted heteroaryl and substituted heterocycloalkyl; Ris selected from the group consisting of C-Calkyl, C-Calkylene, C-Calkyne, C-Ccycloalkyl, C-Csubstituted alkyl, C-Csubstituted cycloalkyl, C-Csubstituted alkylene, C-Csubstituted alkyne; R, R, Rand Rare the same or different and are selected from the group consisting of C-Calkoxy straight chin on branched and a, b, c and d are each either 0 or 1, and a, b, c and d add up to 1, 2, 3, or 4.

Method of quenching electronic excitation of chromophore-containing organic molecules in photoactive compositions

The photostabilizing electronic excited state energy&#x2014;particularly singlet state energy from resveratrol compounds&#x2014;has been found to be readily transferred to (accepted by) &#x3b1;-cyanodiphenylacrylate compounds having an alkoxy radical in the four (para) position (hereinafter 'alkoxycrylenes') on one of the phenyl rings having the formula (I): wherein one of Rand Ris a straight or branched chain C-Calkoxy radical, preferably C-C, more preferably methoxy, and the non-alkoxy radical Ror Ris hydrogen; and Ris a straight or branched chain C-Calkyl radical, preferably C-C. The alkoxycrylene compounds of formula (I) significantly increase the photostability of resveratrol compounds in a composition by at least 3-fold and as much as 10-fold or greater. The ability of the alkoxycrylene compounds to stabilize the resveratrol compound is concentration dependent, with the amount of resveratrol photostabilization increasing with the concentration of the alkoxycrylene compound.

Photostabilization of resveratrol with alkoxycrylene compounds

A method of reducing photodegradation of a coenzyme Qcompound when exposed to UV radiation in a composition containing said coenzyme Qcompound comprising combining with said coenzyme Qcompound a compound of formula (I) in an amount effective to quench singlet excited state energy from the coenzyme Qcompound and transfer the singlet excited state energy from the coenzyme Qcompound to the compound of formula (I), 

Novel derivatives of &#x3b1;-cyano-&#x3b2;-naphthyl acrylates, sunscreen compositions including one or more &#x3b1;-cyano-&#x3b2;-naphthyl acrylate derivatives are described herein. Also disclosed are methods for stabilizing a sunscreen composition and methods of filtering out ultra-violet light from a substrate by the addition of one or more of the foregoing &#x3b1;-cyano-&#x3b2;-naphthyl acrylate derivatives.

Photoabsorbing, highly conjugated compounds of cyanoacrylic esters, sunscreen compositions and methods of use

A composition comprising an inorganic particulate material in an amount of about 20 wt % to about 70 wt %, a carrier for the particulate material comprising a compound of formula (I) in an amount of about 1 wt % to about 70 wt %, a particulate material coating material in an amount of about 0 wt % to about 5 wt %, and a dispersing agent for the particulate material in an amount of about 0 wt % to about 5 wt %, based on the total weight of the composition, wherein one of Rand Ris a straight or branched chain C-Calkoxy radical, and the non-alkoxy Ror Ris hydrogen; and Ris a straight or branched chain C-Calkyl radical.

Dispersions of inorganic particulates containing alkoxycrylene

Polymers containing one or more novel photoactive moieties, sunscreen compositions including a mixture of a photoactive compound and a polymer containing one or more photoactive moieties are described herein. Polymer of formula (I): wherein the variables are as claimed. Also disclosed are methods for stabilizing a sunscreen composition, methods of filtering out ultra-violet light from a substrate by the addition of one or more of the foregoing polymers, methods accepting the triplet excited state energy with one or more of the foregoing polymer, and methods of increasing the UV-A Protective Value are described herein.

Alkyl benzene sulfonyl urea photostabilizers and UV-absorbers

Polymers comprising monomers having 2-cyano-3,3-diphenyl-prop-2-enoic acid moieties having the formula are disclosed. Compositions comprising said polymers and methods for increasing the UV-absorbing, water resistance, and photostabilizing properties of compositions comprising such polymers also are disclosed.

UV-absorbing and photostabilizing polymers

The photostabilizing electronic excited state energy&#x2014;particularly singlet state energy from a UV-absorbing molecule has been found to be readily transferred to (accepted by) &#x3b1;-cyanodiphenylacrylate compounds of formulas (I) and (V) having an alkoxy radical preferably in the four (para) position (hereinafter methoxycrylenes) on one or both of the phenyl rings: wherein at least one of Rand Ris a straight or branched chain C-Calkoxy radical, preferably C-C, more preferably C-C, and most preferably methoxy, and any non-alkoxy radical Ror Ris hydrogen; and Ris a straight or branched chain C-Calkyl radical, preferably C-C, more preferably C; wherein A and B are the same or different and are selected from the group consisting of oxygen, amino and sulfur; Rand Rare the same or different and are selected from the group consisting of C-Calkyl, C-Calkylene, C-Calkyne, C-Ccycloalkyl, C-Csubstituted alkylene, C-Csubstituted alkyne, aryl, substituted aryl, heteroaryl, heterocycloalkyl, substituted heteroaryl and substituted heterocycloalkyl; Ris selected from the group consisting of C-Calkyl, C-Calkylene, CCalkyne, C-Ccycloalkyl, C-Csubstituted alkyl, C-Csubstituted cycloalkyl, C-Csubstituted alkylene, C-Csubstituted alkyne; R, R, Rand Rare the same or different and are selected from the group consisting of C-Calkoxy straight chin on branched and a, b, c and d are each either 0 or 1, and a, b, c and d add up to 1, 2, 3, or 4.

Alkoxycrylene/metal oxide photostabilized photoactive compositions and methods

A silicone fluid comprising a chromophore-substituted polyorganosiloxane having a formula (2): wherein x is an integer in the range of 60 to 2000; y is an integer in the range of 5 to 100; a ratio x:y is in a range of about 10:1 to about 20:1; and X is a photostabilizing chromophore.

Growing community of inventors

Elmwood Park, IL, United States of America

Anna Pavlovic