3M CEO George Buckley outlined to investors this week  ; how the diversified manufacturer wants to continue to rebuild and expand its core, especially adhesives, abrasives, tapes and films.   ; Its continuing strategy, he said, is to advance its core businesses, grow through complementary acquisitions, build new business in adjacent markets and drive strong international expansion.   ; I'm heartened by the way our growth strategy is taking hold and gaining momentum," Buckley said. "We have increased R & D investment by 11% over 2006 and picked up the pace of new product introductions. In addition, we have made 15 complementary acquisitions this year.   ; 3M is expected to announce soon the acquisition of California-based rival Standard Abrasives.   ; In addition, Buckley outlined plans to accelerate international growth through leveraging local and regional brands, and streamline the company's supply chains by finding manufacturing operations closer to customers in emerging markets.