Emorganics Can you see the big difference between these polyesters ? Probably not, in this illustration. The reflectometer, however, shows the Yellow Index* for the dimethyl terephthalate/ethylene glycol polyester incorporating new Emerox® 1144 Azelaic Acid to be 8 units lower than for the similar polyester modified with sebacic acid shown at left. (See accompanying table for comparison of color and color stability of Emerox 1144, adipic, and sebacic acids.) It's the superior color, color stability, and extremely low monobasic content of Emerox 1144 that allow greater control over the color and molecular weight of end products. These outstanding characteristics are indicative of its purity and quality, so essential in the preparation and modification of high molecular weight condensation polymers, such as polyesters and nylons. Typical composition of Emerox 1144, as % methyl esters by gas chromatography, is as follows: C9 dibasic, 92.00; C10 dibasic, 1.20; C n dibasic, 5.60; other dibasics, 1.16; monobasics, 0.04. *Yellow Index determined on a Gardner Multi-Purpose Reflectometer. The lower the number, the less yellow the sample appears to the eye. Polyester slab stocks were used in this test.
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The odd-carbon (C9) structure of Emerox Azelaic Acid usually improves low-temperature impact strength with no sacrifice in high-temperature performance. Emerox 1144 is now available in commercial quantities. Use coupon to request evaluation sample and descriptive brochure. TYPICAL COLOR AND COLOR STABILITY Emerox Adipic 1144 Acid Sebacic Acid C.P. Purified Grade Grade Color (% Transmission at 440/550 mmu on 97/99 94/98 45/80 74/86 molten material) 75/95 72/93 14/48 26/59 Color Stability 1 40 2 175 40 75 Ester Color Test 1 % Transmission at 440/550 mmu after holding for 2 hrs. at 205°C in a test tube open to the air. 2 Determined by preparation of the dioctyl ester under controlled conditions and measurement of the APHA color.
Significant
developments from Emery oleochemical
research
New plasticizer for drycleanable vinyls Now --Emerez® Polyamide Resin warehouse facilities in 11 cities
A new, high molecular weight polymeric plasticizer, specially developed for use i n compounding drycleanable polyvinyl chloride constructions, has j u s t been introduced by E m e r y . E m e r y 3745-D, t h e latest addition t o E m e r y ' s com- N o w you can arrange for overnight delivery of a n y prehensive line of specialty plasticizers, is highly resistant Emerez Polyamide Resin. E m e r y has warehouse facilities to perchlorethylene extraction. I t also has excellent re- throughout t h e U.S. and Canada, which, if local area L C L sistance to extraction by other organic o r hydrocarbon demands warrant, can be stocked for prompt shipment solvents. of Emerez Polyamide Resins 1530, 1540,1532,1535 and Light color, superior low temperature performance, and 1538. Eleven strategic locations: Boston, Newark, Philagood humidity aging are other advantages offered b y delphia, Cincinnati, Cleveland, Chicago, Dallas, Atlanta, E m e r y 3745-D. Excellent efficiency, compatibility, and Greenville (S.C.), Los A n g e l e s . . . London, Ontario, Canah e a t stability contribute to processing ease and economy. da, too! W h y pay for storage space when you can count Check coupon for performance data and evaluation sample. on p r o m p t shipment from t h e nearest Emery warehouse?
£ftW4j INDUSTRIES, INC. Organic Chemicals Division Dept. 115, Carew Tower
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Cincinnati, Ohio 45202 and evaluation sample D E m e r Western Operations. / 3745-D d a t a sheet D a n d Santa Fe Springs, California evaluation sample D Emery Industries (Canada) Ltd., Emerez Polyamide London, Ontario brochure D Unilever-Emery N.V., Gouda.The Netherlands Export Division, Cincinnati Name
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