Opaquely colored, infra-red plastics molding composition and methods of making the opaquely colored, infra-red plastics molding compostion

a technology of infra-red plastics and compositions, applied in the direction of coatings, electrostatic spraying apparatus, anti-corrosion paints, etc., can solve the problems of no longer approved pigments, toxicologically non-hazardous and inexpensive effects

Inactive Publication Date: 2012-11-08
EVONIK ROEHM GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0011]The desire for dark-colored plastic moldings for outdoor applications requires solution of some problems:

Problems solved by technology

Some of these pigments are no longer approved.
By way of example, this can cause irreversible warping of a window frame and prevent its subsequent openingthe color pigments used must themselves likewise be weathering-resistant, and also toxicologically non-hazardous and inexpensive.

Method used

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  • Opaquely colored, infra-red plastics molding composition and methods of making the opaquely colored, infra-red plastics molding compostion
  • Opaquely colored, infra-red plastics molding composition and methods of making the opaquely colored, infra-red plastics molding compostion
  • Opaquely colored, infra-red plastics molding composition and methods of making the opaquely colored, infra-red plastics molding compostion

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examples

[0032]The molding composition Plexiglas® 7N is used as PMMA component. It is available commercially from Rohm GmbH & Co. KG.

[0033]The molding compositions of the present invention comprise poly(meth)acrylates. The expression (meth)acrylates encompasses methacrylates and acrylates and also mixtures of the two.

[0034]Poly(meth)acrylates are known to the person skilled in the art. These polymers are generally obtained via free-radical polymerization of mixtures which comprise (meth)acrylates.

[0035]These monomers are well known. Among these monomers are, inter alia, (meth)acrylates which derive from saturated alcohols, e.g. methyl (meth)acrylate, ethyl (meth)acrylate, propyl (meth)acrylate, n-butyl (meth)acrylate, tert-butyl (meth)acrylate, pentyl (meth)acrylate and 2-ethylhexyl (meth)acrylate; (meth)acrylates which derive from unsaturated alcohols, e.g. oleyl (meth)acrylate, 2-propynyl (meth)acrylate, allyl (meth)acrylate, vinyl (meth)acrylate; aryl (meth)acrylates, such as benzyl (meth...

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Abstract

The invention relates to subduedly colored (brown, gray, black, green), infrared reflecting PMMA compounds which can be applied to other plastic compounds as an IR barrier layer

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation of U.S. application Ser. No. 11 / 720,653 filed Jun. 1, 2007, which is a National Stage of PCT / EP05 / 11408 filed Oct. 25, 2005 and claims the benefit of DE 10 2004 058 083.9 filed Dec. 1, 2004.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The invention relates to opaquely colored, infrared-reflective poly(meth)acrylate molding compositions which can be applied as IR-barrier layer to further plastics moldings.[0004]2. Prior Art[0005]Because PMMA has very good properties, the corresponding molding compositions are, inter alia, processed to give coextruded layers, or processed as outer layers of in-mould-coated parts. These layers serve as outer layer inter alia of foils, of sheets, of profiles and of pipes, of which the main component or backing layer is composed to some extent of other plastics. These plastics, e.g. PVC, polystyrene, polycarbonate, ABS and ASA, have further important proper...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B05D5/06C08K3/22C08K3/10C08J7/043
CPCC08J7/047C08J2333/12C08J2433/00C08K3/0033C08K2003/2251C08L25/12C08L33/12C08L33/04C08L2666/06C08L2666/02C08K3/013C08J7/0427C08J7/043C08J2325/12
Inventor SCHULTES, KLAUSBECKER, ERNSTGOLCHERT, URSULACLAMER, ELISABETH
Owner EVONIK ROEHM GMBH
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