NY -- Standard&Poor's CreditWire 11/14/95 -- Standard&Poor's affirms its triple-`A' senior unsecured and `A-1'-plus commercial paper ratings on Minnesota Mining&Manufacturing Co. (3M) following the company's announcement that it plans to divest its data storage and imaging businesses and discontinue its audio and video tape operations during 1996. The corporate credit rating is triple-`A'. About $400 million of rated is outstanding. Ratings continue to reflect the company's leading market positions, good product diversity, and an extremely strong and stable financial profile. The storage and imaging business, with sales over $2 billion, is the leading worldwide supplier of diskettes, data cartridges, and optical disks. The unit will be spun off to shareholders. Price pressures on the