American Cyanamid Company

Ciba Specialty Chemicals Corporation

Cytec Technology Corporation

Gottfried Haacke

Ram Baboo Gupta

Dennis John Jakiela

Arthur Jack Nozik

Hans P Panzer

Sanford A Asher

Lino Giovanni Magliocco

Thomas P Sassi

Robert D Giglia

George Augustus Castellion

Hiei Ando

Donald Joseph Berets

This invention relates generally to amido or carbamate substituted trisaryl-1,3,5-triazines and the use thereof to protect against degradation by environmental forces, inclusive of ultraviolet light, actinic radiation, oxidation, moisture, atmospheric pollutants and combinations thereof. The new class of trisaryl-1,3,5-triazines comprises an aryl ring attached to the triazine ring (and preferably an aryl ring containing a hydroxyl group, either free or blocked to form a latent stabilizer, ortho- to the point of attachment to the triazine ring) substituted with a group comprising a bondable amido/carbamate containing group para- to the point of attachment to the triazine ring. These materials may, under the appropriate circumstances, be bonded to formulations comprising coatings, polymers, resins, organic compounds and the like via reaction of the bondable functionality with the materials of the formulation. A method for stabilizing a material by incorporating such amido or carbamate substituted trisaryl-1,3,5-triazines is also disclosed.

Trisaryl-1,3,5-triazine ultraviolet light absorbers

The present invention relates to novel bondable trisaryl-1,3,5-triazines containing active (acidic) hydrocarbons and the use thereof as an ultraviolet light absorber. The presently claimed compounds are particularly useful, either alone or in combination with other additives, including other ultraviolet light absorbers and stabilizers, in stabilizing polymers and other materials from degradation by environmental forces such as actinic radiation (ultraviolet light), oxidation, moisture, atmospheric pollutants and combinations thereof.

The present invention discloses a tunable, radiation filter comprising a highly ordered crystalline array of microparticles fixed in a polymerized hydrogel.

Narrow band radiation filter films

An electrochromic device comprises a layer of electrochromic tungsten oxide in contact with an ion-conductive insulating layer of codeposited mixture of SiO and Cr.sub.2 O.sub.3 between electrodes of reversible polarity for alternately coloring and erasing the electrochromic layer by alternate application of current in opposite directions. The mixture of components in the ion-conductive layer improves cycling life of the device.

Electrochromic cell having a mixed solid ion-conducting layer

Light transmissive, electrically conductive cadmium stannate films on plastic substrates are greatly improved with respect to their adherence to the substrate if the film is deposited on a substrate which has been precoated with a metal oxide, such as silicon dioxide or titanium dioxide.

Coating of cadmium stannate films onto plastic substrates

The infrared reflectivity of cadmium stannate (Cd.sub.2 SnO.sub.4) films between 0.6 and 1.5 microns wavelength can be increased by doping the films with copper whereby the films can be used as architectural window coatings.

Infrared reflective coating for visible light transmitting substrates

Cadmium stannate has been found to be useful as a window for solar heat absorbing systems in which advantage is taken of the unique optical properties of cadmium stannate. When cadmium stannate is in an electrically conductive state, having a conductivity of greater than 10.sup.3 ohm.sup.-.sup.1 cm.sup.-.sup.1, it becomes transparent to solar radiation and reflective of thermal infrared radiation. This enables the cadmium stannate to function as a window which allows passage of solar radiation through it and incident onto a black body, and at the same time serve as a reflector of thermal infrared radiation emitted from said body. This results in more efficient solar heat transfer to the solar heat collector provided with such a window.

Greenhouse window for solar heat absorbing systems derived from Cd.sub.2

Cadmium stannate has been found to be useful as a window for solar heat absorbing systems in which advantage is taken of the unique optical properties of cadmium stannate. When cadmium stannate is in an electrically conductive state, having a conductivity of greater than 10.sup.3 ohm.sup..sup.-1 cm.sup..sup.-1, it becomes transparent to solar radiation and reflective of thermal infrared radiation. This enables the cadmium stannate to function as a window which allows passage of solar radiation through it and incident onto a black body, and at the same time serve as a reflector of thermal infrared radiation emitted from said body. This results in more efficient solar heat transfer to the solar heat collector provided with such a window.

Accumulating measuring devices which indicate the flow of electric current on graduated scale. Current flow may be of any fixed rate or value, steady or pulse, and scale may be any desired graduations. Current flow is indicated by a persistent electrochromic display material which changes color due to passage of electric current through it. The entire device is electronic, with no mechanical parts. Other accumulating functions may also be measured with the device if they can be converted first to electric current. One particular application is an elapsed time indicator, e.g. a watch or clock.

Electrochromic information displays

Cadmium stannate has been found to be useful as a window for solar heat absorbing systems in which advantage is taken of the unique optical properties of cadmium stannate. When cadmium stannate is in an electrically conductive state, having a conductivity of greater than 10.sup.3 ohm.sup..sup.-1 cm.sup..sup.-1 , it becomes transparent to solar radiation and reflective of thermal infrared radiation. This enables the cadmium stannate to function as a window which allows passage of solar radiation through it and incident onto a black body, and at the same time serve as a reflector of thermal infrared radiation emitted from said body. This results in more efficient solar heat transfer to the solar heat collector provided with such a window.

Growing community of inventors

Stamford, CT, United States of America

Gottfried Haacke