Merck Patent Gmbh

Merck Patent Gesellschaft MIT Beschrankter Haftung

Merck Patent Gesellschaft MIT

Reiner Dombrowski

Martin Friz

Uwe Anthes

Beate Dombrowski, Legal Representative

The invention relates to a vapour-deposition material for the production of optical layers of high refractive index which comprises titanium oxide and gadolinium oxide and/or dysprosium oxide, to a process for the preparation thereof, and to the use thereof.

Vaporizing material for producing highly refractive optical layers

The invention relates to a vapor-deposition material for the production of optical layers of medium refractive index which comprises aluminum oxide and gadolinium oxide, dysprosium oxide and/or ytterbium oxide, to a process for the preparation thereof, and to the use thereof.

Evaporation material for the production of average refractive optical layers

The invention relates to a vapour-deposition material for the production of optical layers of high refractive index which comprises titanium oxide and ytterbium oxide in a molar ratio of from 4:1 to 1:4, to a process for the preparation thereof, and to the use thereof.

Vapour-deposition material for the production of optical layers of high refractive index

The present invention relates to vapor-deposition materials comprising TaO, where x=4.81 to 4.88, to processes for the preparation of the vapor-deposition materials, and to the use thereof for the production of layers of high refractive index.

Vapor-deposition material for the production of layers of high refractive index

Process for the production of hydrophobic layers on optical substrates which have an alkaline earth metal fluoride or alkali metal fluoride layer as the outermost layer or consist of alkaline earth metal fluorides or alkali metal fluorides, by thermal vapor deposition with polyfluorohydrocarbons in a high vacuum.

Method and agent for producing hydrophobic layers on fluoride layers

Composition for preparing water-repellent coatings on optical substrates, comprising a porous, electrically conductive molding and an organosilicon compound, obtainable by mixing an electrically conductive or semiconductive support material with a binder and subjecting the mixture to compression molding to form a compression molding, sintering the compression molding at preferably 1100 to 1500&deg; C. in air to form a porous molding, impregnating the molding with the organosilicon compound, and ageing the impregnated molding by storage in air for at least 3 days.

Composition for preparing water-repellent coatings on optical substrates

The invention relates-to optical coatings of medium refractive index, having refractive index values of about 1.6 to 1.9, which can be obtained by vapor deposition of vapor-deposition materials having a chemical composition corresponding to the formula I

Optical coatings of medium refractive index

The invention relates to a material for and method of preparing water-repellent coatings on optical substrates. Compounds of formula I

Growing community of inventors

Hoechst, Germany

Reiner Dombrowski