Merck Patent Gmbh

Merck Patent Gesellschaft MIT Beschrankter Haftung

Koshiro Kunii

Katsuhisa Nitta

Sabine Schoen

Satoru Kobayashi

Gerhard Pfaff

Ryuta Suzuki

Fumiko Sasaki

Yuji Takenaka

Kunimitsu Ohira

Yoshifumi Horie

The present invention relates to pigments which comprise niobium-doped titanium dioxide as well as a layer encapsulating the niobium-doped titanium dioxide, to polymer materials containing same and to the use of said pigments as laser absorbing additive in products comprising at least one polymer material and said encapsulated niobium-doped titanium dioxide containing pigments.

Laser additive and its use in polymer materials

A blended composition containing uncoated AlOflakes having a thickness of &#x2265;500 nm and a D-value of 15-30 &#x3bc;m and a D-value of 30-45 &#x3bc;m, and/or coated AlOflakes having a thickness of &#x2265;500 nm and a D-value of 15-30 &#x3bc;m and a D-value of 30-45 &#x3bc;m, which have been coated with at least one layer of a metal oxide, mixtures of at least two metal oxides, metal, metal sulphide, titanium suboxide, titanium oxynitride, FeO(OH), metal alloys and/or rare earth compounds, and their use in various formulations.

Alpha-alumina flakes

The present invention relates to alumina flakes having a defined thickness and particle size distribution and to their use in varnishes, paints, automotive coatings printing inks, masterbatches, plastics and cosmetic formulations and as substrate for effect pigments.

&#x3b1;-alumina flakes

Alpha-Alumina flakes having a particle thickness of 550-1000 nm, a D-value of 15-30 &#x3bc;m, a D-value of 30-45 &#x3bc;m and a D-value of &#x2264;9.0 &#x3bc;m. Use of the alumina flakes in varnishes, paints, automotive coatings printing inks, masterbatches, plastics and cosmetic formulations. Also, use of the alumina flakes as a substrate for effect pigments and in organic dyes.

The present invention relates to effect pigments based on substrates having an outer coating comprising metal oxide, hydroxide and/or oxide hydrate and at least one organic coupling agent.

Effect pigments with an outer protective coating comprising zinc oxide

Surface-treating agent, surface-treated plateletlike pigment and process

The invention relates to oxidized graphite flaky particles obtainable

Growing community of inventors

Fukushima-ken, Japan

Koshiro Kunii