Heat and light resistant polymer composition

A composition and polymer technology, applied in the field of polymer compositions, can solve problems such as easy yellowing

Inactive Publication Date: 2013-06-19
SOLVAY SPECIALTY POLYMERS USA LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Unfortunately, various prior art polymer compositions used in LED applications are prone to yellowing when exposed to light and heat

Method used

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  • Heat and light resistant polymer composition
  • Heat and light resistant polymer composition
  • Heat and light resistant polymer composition

Examples

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Embodiment Construction

[0105] The disclosure is now presented by way of working examples, which are intended to demonstrate the invention and are not intended to be restrictive to imply any limitation on the scope of the disclosure.

[0106] The following commercially available materials were used:

[0107] Polyester: from Eastman Chemical Products Company (Eastman TM Chemical Products) PCT polyester

[0108] glass fiber:

[0109] Fiberglass-1: from Owens Corning Composites (OCV TM Reinforcements' OCV995

[0110] Fiberglass-2: OCV952A from Owens Corning Composites

[0111] Glass fiber-3: T-127H from NEG (Nippon Electric Glass) Co., Ltd.

[0112] Titanium dioxide:

[0113] TiO 2 -1: available from DuPont Titanium Technologies R-350 - rutile TiO produced by the chloride process 2 , treated with silica and alumina.

[0114] TiO 2 -2: Available from Ishihara Sangyo Kaisha, Ltd PC-3——rutile TiO produced by the chloride method 2 , treated with silica and alumina.

[0115] Stabilizers and ...

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Abstract

The invention relates to a heat and light resistant polymer composition, specifically to a polymer composition containing at least one kind of polyester, at least one kind of hinderde-amine compound and at least one kind of trivalent phosphorus compound and an article such as an LED device, wherein the trivalent phosphorus compound is selected from the group containing phosphate ester, phosphinic acid ester and mixture thereof.

Description

field of invention [0001] The present invention relates to a polymer composition comprising at least one polyester, at least one hindered amine compound and at least one trivalent phosphorus compound selected from the group consisting of Various components: phosphites, phosphonites and mixtures thereof. [0002] The invention further provides an article, such as part of a light emitting diode (LED) device, comprising a composition of the invention. Background of the invention [0003] LEDs are increasingly used as light sources in a large number of applications due to their many advantages over traditional light sources. LEDs generally consume considerably less power than incandescent and other light sources, require a low operating voltage and are resistant to mechanical shocks. As such, they are replacing incandescent and other light sources in many applications and have been used in such diverse fields as traffic signals, interior and exterior lighting, cell phone displ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/00C08L67/02C08K5/3435C08K5/527C08K5/5393C08K13/04C08K7/14
CPCC08J5/00C08K3/22C08K5/17C08K5/527C08L67/02C08L2201/02C08K3/013C08K5/5477
Inventor 克里斯蒂·W·克罗科琳·布舍尔曼亚历山德罗·邦乔瓦尼
Owner SOLVAY SPECIALTY POLYMERS USA LLC
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