A Meadville plastics company has been acquired by a Michigan firm. Tech Molded Plastics was acquired by Prism Plastics Inc., which is based in Chesterfield, Mich. Both make automotive plastics, and Tech Molded Plastics makes products for aerospace and electronics industries as well. Financial terms weren't disclosed. Tech Molded Plastics was started in 1973 and has 37 injection-molding machines. Prism said in a statement that the acquisition allows it to double its sales. "We're confident that...