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PPG Industries' general industrial coatings group has announced an expansion of the Knowledge College(TM) Industrial Coatings training program for next year.

Nippon Sheet Glass, a large Japanese manufacturer, has increased its holding in Pilkington, the UK glass group, from 10 to 21 per cent over the past fortnight, but has ruled out mounting a full bid.

Shares in Pilkington PLC lost ground in weak midmorning trade, in the wake of a ratings downgrade from Goldman Sachs, which blamed a deteriorating earnings climate for their move, dealers said.

Thermal Industries today announced that it will offer windows containing SunClean self-cleaning glass from PPG (NYSE:PPG) beginning next spring - making it the first window and patio enclosure manufacturer to offer the latest in PPG's glass…