Patent ID: 8957142
Filing Date: 2015-02-17
Classification: C08K,H01L

Abstract:
1. A polyamide resin composition comprising (A) a semi-aromatic polyamide resin; (B) an inorganic filler; (C) a white pigment; and (D) a phosphinate salt, wherein the phosphinate salt (D) is represented by Chemical Formula 4: wherein Ar is substituted or unsubstituted C6 to C18 aryl, and X is a metal cation comprising Na, Ca, Mg, Al, or Zn, and wherein the polyamide resin composition has an initial reflectance of about 93% or more, measured using a spectrophotometer at a wavelength of 440 nm, a decrease in reflectance of less than about 13% measured at a wavelength of 440 nm as measured before and after leaving a specimen formed of the polyamide resin composition in a LED light source at 85 ° C. and a relative humidity of 85% for 250 hours, an initial yellow index (YI) of about 3 to about 5 measured with a spectrophotometer, and a change of yellow index (ΔYI) of less than about 5 measured before and after leaving a specimen formed of the polyamide resin composition at 150 ° C. for 8 hours.