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Protective coating compositions and devices

A composition, protective technology, applied in the direction of semiconductor devices, coatings, electrical components, etc., can solve problems such as low absorption coefficient

Active Publication Date: 2011-04-27
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, certain dibenzoylresorcinols have excellent photostability and good compatibility with coating substrates, but have relatively low absorbance coefficients

Method used

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  • Protective coating compositions and devices
  • Protective coating compositions and devices
  • Protective coating compositions and devices

Examples

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Embodiment

[0046] The following examples illustrate methods and embodiments of the invention and, therefore, should not be construed as limitations on the claims.

[0047] Unless otherwise stated, all ingredients were commercially available from the following general chemical suppliers: Alpha Aesar, Inc. (Ward Hill, MA), Sigma Aldrich (St. Louis, MO), Spectrum Chemical Mfg. Corp. (Gardena, CA )Wait. Tinuvin 1577 was obtained from Ciba Specialty Chemicals. ADK STAB LA-46 was obtained from Adeka Corporation. 4,6-Dibenzoylresorcinol and 4,6-bis(4'-tert-butylbenzoyl)resorcinol were prepared as described in U.S. Patent 5,869,185.

[0048] Preparation of coating film

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Abstract

In one aspect of the present invention, a UV-protective coating composition is described. The UV protective coating composition includes an acrylate polymer; and a non-crystallizing UV-absorber composition. The non-crystallizing UV absorber composition includes a dibenzoylresorcinol and at least one triazine compound. The dibenzoylresorcinol is present at a level in the range of from about 10 weight percent to about 25 weight percent, based on the total weight of the coating composition. Also provided is an article that includes the UV protective coating composition, and a method to protect the article.

Description

technical field [0001] In general, the present invention relates to coating compositions for UV protection. More specifically, the present invention relates to UV protective coating compositions for protection in optoelectronic devices. The invention also relates to optoelectronic devices using such coatings. Background technique [0002] Materials such as thermoplastic resins generally possess an attractive set of mechanical and physical properties, such as high heat resistance, high impact resistance, dimensional stability, high ductility, and optical clarity. However, these materials are generally susceptible to degradation by ultraviolet (UV) light. This type of degradation often leads to corrosion and yellowing of polymer surfaces, for example in the case of polymer substrates. Efforts have been made in the past to alleviate these problems. Optically clear coatings are used to protect polymeric and other substrates from weathering. Highly weather-resistant coatings...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D7/12C09D133/12H01L31/048
CPCY10S977/932C09D7/1241C08K5/3492C08K5/005C08K5/132C08K5/34926C09D7/48C08L33/08
Inventor J·E·皮克特
Owner GENERAL ELECTRIC CO