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N U M B E R 24

CHEMICAL & ENGINEERING

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2 C & E N J U N E 11, 1962

17 Industry & Business 19 Washinaton 37 Research & Technology

21 A slumping stock market carries chemical shares down to the lowest level in a year and a half. But falling prices on Wall Street do not appear to have led chemical companies to alter expansion plans—at least so far.

23 Fumaric acid appears headed for greater use in food processing. Its future hinges on improving its solu­bility rate in cold- water and getting a "no tolerance" ruling from FDA. Monsanto believes it will pass both tests soon.

26 House committee members want prompt action on bill to improve and expand training of technicians, but Ad­ministration wants to wait until it has a report from a special advisory committee on vocational education.

28 Melamine resins are expected to start growing again. A round of expansion has probably doubled ca­pacity in the past two years. Meanwhile, demand declined but is noiv recovering and pointing upward.

MARKETS

RESEARCH 38 The same RNA stimulates formation of similar pro­teins in different systems, according to scientists at the University of California and the National Institutes of Healtli. The work supports RNA's messenger role.

39 Pi-radical hybridization theory proposed by New York University's Dr. Minoru Tsutsui explains the mech­anism of aryl coupling in biphenyl formation. It also ex­plains the stereospecific dimerization of stilbene.

40 Polymer radicals are being designed at Ford Motor using data obtained from research on stabilized free radicals produced by radiation of polymers. Tailor-made cross-linked polymers result from the study.

EDUCATION 44 Scientists may find some interesting openings among the Fulbright-Hays felloicships offered in Spain and South America. Lectures often may be given in English at the larger educational centers.

TECHNOLOGY 48 An automated computer-plotter design system, called' MEISENG, accepts design criteria directly and pro­duces an image of a completely dimensioned design. The system cuts design time by 95% or more, costs less.

Newsmagazine of the Chemical World

World This Week

THE COVER: Stock broker offices around the country felt the impact of the wave of selling and then buying that hit Wall Street at month's end. This scene is at Bache & Co., Washington, D.C.

J U N E 1 1 , 1 9 6 2

© Copyright 1962 by the

AMERICAN CHEMICAL SOCIETY

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RESEARCH

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TEMPERATURE POTENTIOMETER Here in one space-saving instrument (only 7" χ 6" χ 5"), you'll find a self-contained portable potentiometer made with L&N's top-quality craftmanship. If you're check­ing thermocouples, recorders or con­trollers in industry—or measuring tem­peratures in research work—you can choose, from 15 different ranges, the 8695 Double-Range Potentiometer which meets your needs (an 8694 Single-Range instru­ment is also available). For information on ranges, write for Data Sheet E-33(5). L I M I T OF ERROR—±0.3% of range. FUNCTION SWITCH—Six-position switch pro­vides following internal connections: (1) "OUTPUT" A (2) "STD" A (3) "MEAS" A (4) "MEAS" Β (5) "STD" Β (6) "OUTPUT" B. CASE-Metal with handle, 7" χ 6" χ 5". Wt: AV2 lbs. PRICE-8695: $240.00. 8694: $200.00 F.O.B. Phila. or North Wales, Pa. (Price subject to change without notice). Specify List Number 8694 or 8695 with desired range suffix numbers, obtainable from your nearest L&N Office or 4928 Stenton Ave., Phila. 44.

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J U N E 11, 1962 C & E N 3

49 A unique organotin compound, bis(tri-n-butyltin) oxide, finds a host of uses as a powerful antimicrobial agent. The compound is moving hard into water treatment, marine paints, and germicides markets.

CHEMICALS 54 Three new latex binders are competing for a posi­tion in the growing market for paper coatings. Enjat/s butyl, Union Carbide's acrylic, and Dow's SBR are aiming primarily at the paperboard segment of the market.

EQUIPMENT 58 A mechanical seal as an integrated unit is used in a high pressure mixer designed and manufactured by Mixing Equipment Co., Inc. The seal can be used on mixing tanks operating at pressures up to 5000 p.s.i.

INTERNATIONAL 72 French chemical trade continues to expand. De­spite overcapacity in some product lines, rising costs, drop­ping prices, and capacity increases in neighboring coun­tries, the outlook for 1962 is good.

ASSOCIATIONS 76 The 2nd International Symposium on Fluorine Chemistry will be held ]uly Π to 20 at Estes Park, Colo. ACS Division of Industrial and Engineering Chemistry's Fluorine Chemistry Subdivision sponsors the program.

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