US 2013/0296472 A1 · POLYAMIDE COMPOSITION FOR REFLECTOR, REFLECTOR, LIGHT EMITTING DEVICE INCLUDING THE REFLECTOR, AND LIGHTING DEVICE AND IMAGE DISPLAY DEVICE EACH INCLUDING THE LIGHT EMITTING DEVICE

Abstract

The present invention provides a polyamide composition for a reflector having high heat resistance and good mechanical properties, having excellent adhesion to a sealing material for an LED package, and capable of retaining a high reflectance even after exposure to heat and light intended for the production process of the LED package and the environment in which the reflector is used in the LED package, when it is molded. The present invention is a polyamide composition for a reflector, containing: 30 mass % or more of a polyamide (A) having a melting point of 280° C. or higher; and 25 mass % or more of titanium oxide (B). The total content of the polyamide (A) and the titanium oxide (B) is 75 mass % or more.

Claims13

Dependent claims

A polyamide composition for a reflector, comprising:

30 mass % or more of a polyamide (A) having a melting point of 280° C. or higher;
and 25 mass % or more of titanium oxide (B), wherein a total content of the polyamide (A) and the titanium oxide (B) is 75 mass % or more, and dicarboxylic acid units of the polyamide (A) comprise more than 50 mol % of 1,4-cyclohexanedicarboxylic acid units, with the proviso that the polyamide (A) excludes a polyamide polymerized from a dicarboxylic acid including at least 50 mol % of 1,4-cyclohexanedicarboxylic acid and a diamine including at least 50 mol % of a diamine with a branched main chain.

Dependencies are inferred from the claim text.

Facts

Application

13/989,952Filed 20 Jan 2012

Priority

JP 2011-01707828 Jan 2011

Published

7 Nov 2013

Term ends

Not estimatedThe source records don’t support an estimate.

Classification19 codes

F21V 7/22
Reflectors for light sources: characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
C08G 69/26
Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids: derived from polyamines and polycarboxylic acids
C08G 69/265
Derived from polyamines and polycarboxylic acids: from at least two different diamines or at least two different dicarboxylic acids
C08K 3/22
Oxides; Hydroxides: of metals

Polyamide composition for reflector, reflector, light emitting device including the reflector, and lighting device and image display device each including the light emitting device

Life of this patent

Polyamide composition for reflector, reflector, light emitting device including the reflector, and lighting device and image display device each including the light emitting device

Life of this patent

Abstract

Claims13