1
groups; a curing agent having groups that are reactive with the functional groups; and a com- pound comprising at least one carbamate group that is the reac- tion product of a hydroxyl group that is the result of a ring-opening reaction between an epoxy group and an organic acid group and cyanic acid or a carbamate group. VIBRATORY .. NISHING PROCESS U.S. Patent 5,873,770. Feb. 23, 1999 F. Hashimoto, assignor to The Timken Co., Canton, Ohio In a workpiece having at least one exterior surface, the improve- ments comprising the exterior surface having a predefined de- sired average surface roughness obtained by subjecting to a vibra- tory finishing process for a prede- termined processing time. RECOVEIIY OP PAINT OVUlSPRAY U.S. Patent 5,873,945. Feb. 23, 1999 R.R. Patzelt and T. Randazzo, assignors to Nortru Inc., Detroit A method for recovering a volatile organic material consisting essen- tially of carbonyl compounds from solvent-in-water emulsions de- rived from paint overspray treat- ment and capture systems. PIIOTEC'mIE COAnN. POR ZINCIfEROUS SURPACIS U.S. Patent 5,873,952. Feb. 23, 1999 J.R. Hall and T.J. Prescott, assignors to Henkel Corp., Gulph Mills, Pa. A process of forming, over a spec- ified period of time, a protective coating on one or more zinciferous surface(s) by contacting with at least a portion of a specified total volume of an aqueous liquid treat- ment composition comprising wa- ter, transition metal cations, and fluorometallate anions. IlIOIlICHROMAnD COAnNG POR ALUMINUM U.S. Patent 5,873,953. Feb. 23, 1999 M.P. Schriever, assignor to The Boeing Co., Seattle An improved process for forming an oxide film cobalt conversion coating exhibiting corrosion resis- tance and paint adhesion proper- ties on aluminum or aluminum al- loy comprising an oxide film forming cobalt conversion solution containing no triethanolamine con- Ask for your FREE copy of our lalest calal09 SERF/LeoSpace-Save FiltrationSystemsare just that ... they save valuable space in your plant, while providing economical, full flow filtration to maintain constant solution clarity and purification . • Non-metallic solution contact for compatibility with most liquids, inclUding harsh chemicals at elevated temperatures. • Flow rates to 6600 GPH • Filter chambers accept depth wound, pleated, cleanable sleeve and carbon cartridges as well as cleanable bags. F·217 D SERFILCO, LTD. .-" •• 1777 Shermer Road, Northbrook, IL 60062-5360 U.S.A. 847·559-17n. 800·323·5431. FAX: 847-559-1995 Email: [email protected]. Web: http://www.serfllco.com NC267 lorryCell for room 5. mechanical 09'1. NC367 lorryCell with built-in strnng bar. NC467 lorryCell wI duo Olr. stirring bar NC567 lorryCell wI heater. built-in stIlTing bar. NCU7 larryCell w/healer. duo stirrer Order/nlormo/ion: 1- Concave walls to reproduce the shield cathode deposit, and shield anode corro ion. 2- Duo air manifolds for the anode and the cathode. 3- Precise thermostatic heater; gla or titanium. Suspended for easy cleaning and adding chemical. 4- Fix position magnetic stirring pattern, built-in stirring bar. 5- Built-in duo temperature indicator; and F scale. 6- Thermometer and air pump holder. QualifyShouldNover Be A GuessingGame! I/IIIIIY dill Corporation IhltpJ/www plateworld.comnarryk.htm I 13706 250lh Slreet, Jamaica Y 11422 (716) 481-6741 fax (716) 461-9659 Setting New Standards in 267 ml Hull Cell Circle 041 on reader Information card Circle 071 on reader Information card November 1999 105
