Trinseo Europe Gmbh

Brian M Cromer

Florence Mehlmann

Jack J Reilly

Jiaxin Jason Ge

Michael Timothy Burchill

Gary A Hall

Cedric Roy

Sylvain Queruel

A polymeric (meth) acrylic composition including polymeric silicone particles and optionally polymeric (meth)acrylic particles. The polymeric silicone particles have a weight average particle diameter between 1 μm and 10 μm and the optional polymeric (meth)acrylic particles have a weight average particle diameter between 20 μm and 100 μm. The polymeric (meth) acrylic composition may be in the form of a masterbatch. A process for making the (meth)acrylic composition including polymeric silicone particles and polymeric (meth)acrylic particles from a polymeric (meth) acrylic masterbatch composition including polymeric silicone particles and optionally polymeric (meth)acrylic particles is provided.

(Meth)acrylic polymer composition comprising particles, its method of preparation and its use as masterbatch

The invention relates to an acrylic light diffusing material providing spectral uniformity over the visible light range, defined herein as from 400 to 800 nm. The light diffusing material provides a uniform light transmission for light engines having two or more light sources with different spectral emission peaks. Due to its high hiding performance, the light diffusing material of the invention is especially useful with LED point light sources. The diffusing material contains a transparent polymer matrix and one or more types of diffusing materials, providing an optimal balance of spectral uniformity, light transmission, diffusion, and hiding performance.

High spectral uniformity acrylic light diffusion material

The invention relates to high efficiency diffusion lighting coverings useful in LED lighting applications. The diffusing lighting coverings are made of organic diffusing particles homogeneously dispersed in a transparent polymer matrix. The primary organic diffusing particles are refractive index mis-matched to the matrix polymer. The refractive index contrast between the polymer matrix and diffusion particles, and particle size are selected to provide a high efficiency (minimized particle loading). The high efficiency diffusion coverings provides excellent light diffusion, high hiding properties and high light transmission. The secondary diffusion particles may optionally be added to further improve selected target properties of the covering. Nano-sized ZnO inorganic particles may also function as diffusion particles and optical brighteners as well UV stabilizers. Articles made of this translucent composition are useful in commercial and residential lighting, motor vehicle illumination (lights, panels), street lighting, displays and signs, desktop monitors, and LCD/LED TVs.

High efficiency diffusion lighting coverings

The invention relates to a light-diffusing material, having a high transmission of UVA light, useful for horticultural lighting. The light-diffusing material has a hiding power of greater than 50% at 350 nm and a transmission of light at 350 nm of at least 30 percent, and preferably at least 50%. Additionally the light-diffusing material also transmits and diffuses at least 50% of light at 300 nm, 465 nm, and at 800 nm. The light-diffusing material is especially useful as a glazing for horticultural use.

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Royersford, PA, United States of America

Brian M Cromer