This excerpt taken from the ICI 6-K filed Mar 21, 2007.
Intangible assets other than goodwill
Research and development
Research expenditure is charged to income in the year in which it is incurred.
Development expenditure is charged to income in the year in which it is incurred unless it meets the recognition criteria of IAS 38 Intangible Assets. Regulatory and other uncertainties generally mean that such criteria are not met. Intangible assets, if capitalised, are amortised on a straight-line basis over the period of the expected benefit.
Other intangible assets