ARKAY PLASTICS - Mark Szulc was named production control manager and John Roberts was named manufacturing process engineer. The company, a subsidiary of Arkay Industries Inc. of Dayton, Ohio, produces injection molded parts for the automotive, home electronics, appliance and materials-handling industries.
FREUDENBERG-NOK - The Plymouth, Mich.-based automotive supplier promoted three executives to presidents of their respective divisions. Tsutomu Takeda was named president-seals division; Robert Hange, president-plastic products division; and Michael Crosby, president-rubber products division. Freudenberg-NOK makes seals, molded components, vibration-control devices and automotive rebuild kits.
KLOCKNER PENTAPLAST OF AMERICA INC. - The film and sheet maker named Michael Tubridy marketing director, Dean Inman vice president-technical areas, Nancy Edwards manager of communications and media, and Eric Sigler treasurer.
NAPCOR - Quinn Rasberry was named communications director for the Charlotte, N.C.-based National Association for Plastic Container Recovery. She will coordinate local and national PET recycling communications on consumer, technical and legislative issues. Rasberry was account manager with Epley Associates/Public Relations.
PAC-FAB INC. - Douglas Brittelle was named president, effective Jan. 3, of the Sanford, N.C., wholly owned subsidiary of Essef Corp. Pac-Fab supplies swimming pool equipment such as filters, pumps, valves, heaters and lights. Brittelle is replacing Terry Carraher, who is retiring in April. Brittelle was general manager of General Electric's apparatus service business.
USCAR - Michael Thomas was named executive director of the United States Council for Automotive Research, an umbrella organization for Big Three research and development pro-grams. Thomas was director of Ford Motor Co.'s technical strategy office, technical affairs. He succeeds Donald Walkowicz, who had been USCAR executive director since 1992. Walkowicz will return to General Motors Corp. as director of business partnership planning and integration.
WITT PLASTICS INC. - James Steyer was named executive vice president of the Greenville, Ohio, manufacturer of thin-gauge sheet for food and medical packaging, graphic arts, and electronics packaging. He was vice president of sales and marketing.
Linda Barnes Marlin was named director of sales and marketing for Aston, Pa.-based compounder TP COMPOSITES INC. ... Carlos R. Castro was named sales manager-Latin America, for JOMAR CORP., a Pleasantville, N.J., manufacturer of injection blow molding machinery. ... John Bozzelli was named to the technical staff of GENERAL POLYMERS, a division of Dublin, Ohio-based Ashland Chemical Co. ... A. SCHULMAN INC. of Akron, Ohio, named Rengarajan Ramesh general manager for A. Schulman-Asia. The company opened an office and is building a plant in Surabaya, Indonesia. ... Ronald Yocum was named chairman of Cincinnati-based QUANTUM CHEMICAL CO., in addition to his position as president and chief executive. ... Al Hodge was named industry director-pipe, profile, tubing and sheet systems for Pawcatuck, Conn.-based DAVIS-STANDARD, a division of Crompton & Knowles Corp. ... Dan St. George was named runnerless applications manager for FAST HEAT INC., an Elmhurst, Ill., manufacturer of turnkey runnerless manifold systems and electronic temperature controls for injection molding equipment.