I'lHfiHLES FOR RESEARCH PEOPLE
ruzzu; A diligent research chemist put down his sandwich and nudged his assistant. "I'll tell you something about that visiting engineer and his two sons." The assistant peered over a bubbling beaker at the trio across the lab and waited expectantly. "If you multiply their ages together," the chemist continued, "you will get 2,450. If you add their ages together, you will get twice your own age. Using integral numbers, you can uniquely determine the age of each person." The assistant squinted, scratched his ear and then his chin. After some rapid doodling on his lunch bag, he said, "That's not sufficient information for a determination, unique or otherwise." "Right," the chemist agreed, wadding his sandwich wrapper and returning to his chores. "So I will add that I am older than the father. Now," he added, eyeing
his helper through mists of elixirs, "how old am I?" OH
on ι
CH
HC
\ c /
ll c , H » C-CH ι
CH
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meta-isopropyI phenol
*
para-isopropylphenol
Meet MIP & PIP—two brand new Developmental Products. No guesswork here. MIP—METAISOPROPYLPHENOLand PIP— PARA-ISOPROPYLPHENOL are the Castor & Pollux chemicals . . . fraternal twins offering the best of two worlds. Both are high purity solutions and are semicommercially available. Both follow the more common reactions of the phenolic hydroxyl and the ring. Both offer the interesting possi bilities of the isopropyl group. But the meta and para substitutions, while similar, are significantly different. MIP,for example, may
Espesol A r o m a t i c , Intermediate and A l i p h a t i c Solvents. DriRex D r y c l e a n i n g Solvents. Petrochemicals: Hexane, Heptane, Benzene.Toluene, Xylene, Cyclohexane, Ethylbenzene, Paraxylene, Propylene. Developmental Products: Alkylcyclohexanes and Alkylbenzenes. Call the office nearest y o u : H o u s t o n , 923-1651 · New York, 247-2520 · C h i c a g o , 848-5410 C l e v e l a n d , 333-0188 · L o u i s v i l l e , 583-7634 · A t l a n t a , 233-3227 · O a k l a n d , 834-5110 Long B e a c h , 636-3301. I n d e p e n d e n t P e t r o c h e m i c a l C o r p o r a t i o n : St. L o u i s , 652-6050. Denver, 789-1888· Signal Export Company, P.O. Box 5008, Houston, Texas 77012, Tel. 923-1651. Signal Chemical (Europa) N.V., Treubstraat 19, Ryswyk (Ζ. Η.), Holland, Tel. (070) 90-85-85.
SIGNAL OIL A N D GAS COMPANY
find use as a plasticizerfor phenolic resin systems where it becomes an integral part of the structure. New products, new devices, new techniques often await suitable production solutions. MIP, PIP, or any of many promising Develop mental Products from Signal Oil and Gas Company may provide profitable answers for you. For PARA and META-ISOPROPYLPHENOL parameters, applications and prices, write our Houston office.
SOLUTION The chemist's assistant found: The chemist was 50, the visiting engineer 49, his sons 10 and 5. The assistant himself was 32...he knew that all the time. (Contributed by R. J. Hodous, Goodrich-Gulf Chemicals, Inc., Cleveland, Ohio.) If you have a pet puzzle you would like featured in one of our adver tisements, submit it to: PUZZLES, Signal Oil and Gas Company, P.O. Box 5008, Houston, Texas 77012.
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developmental products MARKETING RESEARCH & DEVELOPMENT DIVISION
PETROCHEMICALS DEPARTMENT P.O. BOX 5008, H O U S T O N , TEXAS 77012
