Hallstar Innovations Corp.

Hallstar Innocations Corp.

The Hallstar Company

Jean Zhang

Craig Alan Bonda

Anna Pavlovic

Kevin O'Lenick

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

Photostabilization of cholecalciferol with alkoxycrylene compounds

The present invention relates to a series of dimethicone esters that contain benzyl groups. These esters have a dry feel and are well suited to a variety of uses especially cosmetic uses where they fond use in sunscreen compositions, pigment dispersions, and creams and lotions.

Silicone benzyl esters

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 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), 

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 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.

Growing community of inventors

Hickory Hills, IL, United States of America

Jean Zhang