Other Intangible Assets

3 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Other Intangible Assets

NOTE 5 – OTHER INTANGIBLE ASSETS

The following table summarizes the other intangible assets movement year on year:

	Three Months Ended March 31
(in millions)	2018			2017
Gross cost at January 1	$	295.8		$	248.6
Acquisitions		0.0			33.5
Internally developed software		0.8			0.0
Exchange effect		1.2			0.1
Gross cost at March 31		297.8			282.2
Accumulated amortization at January 1		(132.5	)		(104.2	)
Amortization expense		(6.7	)		(6.9	)
Exchange effect		(0.3	)		0.1
Accumulated amortization at March 31		(139.5	)		(111.0	)
Net book amount at March 31	$	158.3		$	171.2

Internally developed software has been capitalized in relation to the information system platform for our Performance Chemicals European businesses.

Amortization expense

	Three Months Ended March 31
(in millions)	2018			2017
Product rights	$	(0.9	)	$	(0.9	)
Brand names		(0.3	)		(0.3	)
Technology		(0.9	)		(0.9	)
Customer relationships		(2.6	)		(2.6	)
Non-compete agreements		0.0			(0.2	)
Marketing related		0.0			(0.2	)
Internally developed software		(2.0	)		(1.8	)
Total	$	(6.7	)	$	(6.9	)