Stephen L Schrader

US Patent:

8575238, Nov 5, 2013

Filed:

Nov 30, 2012

Appl. No.:

13/691075

Inventors:

Christopher T. Snively - McKinney TX, US
Steven E. Lau - Harbor City CA, US
William J. Wolfgong - Little Elm TX, US
Cindy W. Ma - Union City CA, US
Stephen L. Schrader - Murphy TX, US

Assignee:

Raytheon Company - Waltham MA

International Classification:

C08G 59/06
C08K 3/08
C08K 3/10
C08L 63/02

US Classification:

523458, 523457, 523459, 523460, 525523, 528102

Abstract:

The disclosure relates to an X-ray opaque coating containing an epoxy resin including an iodinated phenol covalently bonded to a glycidyl ether. Iodinated phenol covalently bonded to a glycidyl ether may include iodinated bisphenol A, such as tetraiodobisphenol A, a glycidyl ether of mono-iodophenol, bis-iodephenol, tri-iodophenol, or combinations thereof. The coating may include an X-ray opaque inorganic filler. The disclosure also relates to an electronic component including a substrate and at last one device coupled to the substrate with an obfuscation layer disposed over the substrate for obscuring the device from an X-ray source. The obfuscation layer may include an X-ray opaque coating. The disclosure additionally relates to- a method of obscuring at least a portion of an electronic component by depositing an obfuscation layer that may include an X-ray opaque coating and a method of forming an X-ray opaque coating.

US Patent:

20100255312, Oct 7, 2010

Filed:

Nov 17, 2009

Appl. No.:

12/620001

Inventors:

Thomas K. Dougherty - Playa Del Rey CA, US
Christopher T. Snively - McKinney TX, US
Steven E. Lau - Harbor City CA, US
William J. Wolfgong - Little Elm TX, US
Cindy W. Ma - Union City CA, US
Stephen L. Schrader - Murphy TX, US

International Classification:

B32B 27/38
C09D 163/00

US Classification:

428413, 523400, 523457, 523460, 523459, 523456, 523458

Abstract:

The disclosure relates to an X-ray opaque coating containing an epoxy resin including an iodinated phenol covalently bonded to a glycidyl ether. Iodinated phenol covalently bonded to a glycidyl ether may include iodinated bisphenol A, such as tetraiodobisphenol A, a glycidyl ether of mono-iodophenol, bis-iodophenol, tri-iodophenol, or combinations thereof. The coating may include an X-ray opaque inorganic filler. The disclosure also relates to an electronic component including a substrate and at least one device coupled to the substrate with an obfuscation layer disposed over the substrate for obscuring the device from an X-ray source. The obfuscation layer may include an X-ray opaque coating. The disclosure additionally relates to a method of obscuring at least a portion of an electronic component by depositing an obfuscation layer that may include an X-ray opaque coating and a method of forming an X-ray opaque coating.