Huntsman Corporation Registration of securities issued in business combination transactions

INTANGIBLE ASSETS

12 Months Ended

Dec. 31, 2012

8. INTANGIBLE ASSETS

The gross carrying amount and accumulated amortization of intangible assets were as follows (dollars in millions):

	December 31, 2012						December 31, 2011

	Carrying Amount		Accumulated Amortization		Net		Carrying Amount		Accumulated Amortization		Net
Patents, trademarks and technology	$	355	$	318	$	37	$	363	$	307	$	56
Licenses and other agreements		41		16		25		39		14		25
Non-compete agreements		2		2		—		2		2		—
Other intangibles		68		60		8		48		36		12

Total	$	466	$	396	$	70	$	452	$	359	$	93

Amortization expense was $23 million, $30 million and $30 million for the years ended December 31, 2012, 2011 and 2010, respectively.

Our estimated future amortization expense for intangible assets over the next five years is as follows (dollars in millions):

The entire disclosure for all or part of the information related to intangible assets.