by lou wilinstaff writerthe new owner of the filmproducing dow chemical co. plant in findlay plans to double the 55 jobs there in two to three years.valfilm north america, which took possession of the 400,000squarefoot plant at 3441 n. main st. on sunday, said it will double plant production and revenue by the end of this year.valfilm&rsquos films are used for food packaging, metal adhesion and embossing.it will begin broadening its product mix this spring. production of stretch film, widely used in industrial packaging, among others, will begin soon.