Biophysica, Inc.

Biophysica Research, Inc.

Ronald C Terry

Milos Sovak

James Gordon Douglass, Iii

Farid Bakir

Jason W Brown

Allen L Seligson

Peter Cugley

This invention comprises new formulations of radiographic contrast media including dimeric non-ionic media, with an organic amine and a carboxylic acid. Formulations of this invention increase the biological tolerance of such media, thereby increasing their safety.

Contrast media formulations having improved biological tolerance

Novel polymeric biologically inert compositions and their intermediates, as well as sunscreen formulations comprising them and making them invisible, are provided for broad range protection from ultraviolet radiation. Acryl polymers comprising at least two different ultraviolet absorbing moieties having different light absorbing ranges are employed in conjunction with other monomers to provide sunscreen polymers as microparticles. The polymer microparticles, once imbibed with carrier compounds, change the refractive index, thus providing invisible sunscreen formulations which offer enhanced protection without adverse physiological effects.

Sunblocking polymers and their novel formulations

Novel polymeric compositions and their intermediates are provided, providing for broad range protection from ultraviolet radiation. Acryl polymers comprising at least two different ultraviolet absorbing moieties having different light absorbing ranges are employed in conjunction with another hydrophilic monomer to provide sunscreen formulations for invisibility, and enhanced protection, without deleterious effects in the dermis.

Sunblocking polymers and their formulation

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San Diego, CA, United States of America

Ronald C Terry