ASSOCIATIONS
SPeCiâi
WAX X-12 for HOT-MELT ADHESIVES X-12 reduces viscosity....provides uniform deposition of thin films, aids in wetting film surfaces and controls "open time". Stable wax eliminates darkening under prolonged heating, and clear films result. X-12 acts as a coupling agent.... is compatible with most hot-melt adhesive ingredients-and compatible with ELVAX. 230 lb., drums 111., Cleveland.
WERNER G. SMITH INC. 'MOBY
ACS Rubber Chemistry Division The ACS Division of Rubber Chemistry will hold its fall meeting in Philadelphia, Pa., Oct. 20 to 22. The meeting will feature symposiums on Elastomeric Cellular Materials and on Building Tack and Performance Adhesion. There will also be sessions of general papers. Papers are invited. Deadline for receipt of abstracts (eight copies, 200 words) in the office of the secretary, G. N. Vacca, Bell Telephone Laboratories, Inc., Room 1A 258, Murray Hill, N.J. 07971, is July 2. The 25 Year Club will meet Oct. 20 during the conclave. Awards for best paper presented at the Miami Beach meeting and honorable mention awards will be presented Oct. 21.
DICK"^
SPERM PRODUCTS
BRIEFS 1730 TRAIN AVENUE · Phone: 861 3676
CLEVELAND. OHIO 44113 Area Code: 216
LEVER BROTHERS
Patent, Trademark, and Copyright Research Institute of George Washington University will hold its 9th Annual Public Conference June 17 and 18 at the Washington Hilton Hotel, Washington, D.C. Theme of the conference will be the Evolving Needs for the Protection of Industrial and Intellectual Property. Write the institute at GWU, Washington, D.C. 20006, for further details.
American Marketing Association will hold a World Congress on Marketing June 14 to 16 at the New York Hilton Hotel. Theme will be Marketing's Golden Threshold. Write ΑΜΑ, 230 North Michigan Ave., Chicago, 111. 60601, for further information.
Dr. S. O. Winthrop Mr. C. R. Baker, Vice-President of Lever Brothers Limited, announces the a p p o i n t m e n t of D r . S t a n l e y O. Winthrop as Director of Research and Development. In his new position Dr. Winthrop will direct the efforts of Lever Brothers' scientists toward the development of new and improved products for both the consumer and industrial markets. The Company has recently occupied a new $1.5 million T e c h n i c a l C e n t r e in d o w n t o w n Toronto.
72
(Advertisement)
C & E N J U N E 7, 1965
Society of Plastics Engineers will hold its regional technical conference July 14 and 15 at the Edgewater Inn, Seattle, Wash. In addition to a pro-
gram of technical papers, the program includes an exhibit of commercial rein forced and high-temperature plastics. General conference and program chairman is R. A. V. Raff of Washing ton State University, Pullman.
Plant Phenolics Group of North Amer ica will hold its annual meeting Aug. 23 to 25 in Albany, Calif. The sym posium topic will be Phenolic Com pounds as Metabolic Regulators. For further details, write Dr. V. C. Runeckles, Imperial Tobacco Co. of Can ada, Ltd., P.B. Box 6500, Montreal, Que.
Canadian Pulp and Paper Association will sponsor a Conference on Water Conservation and Stream Improvement at the Canadian Inn, Fort William, Ont., Oct. 19 to 21. Sessions will be held on water quality criteria, ef fluent treatment, in-plant recovery, and the cooperative approach to stream improvement. Visits to nearby mills will be arranged. For further de tails write CPPA, 2280 Sun Life Bldg., Montreal 2, Que.
Food Law Institute and the Food and Drug Administration have scheduled a joint educational conference to be held at the Marriott Twin Bridges Motor Hotel, Washington, D . C , Dec. 6.
American Association of Clinical Chemists has been designated as a sponsor organization under the ex change visitor program of the Depart ment of State. Purpose is to promote the international advancement of clini cal chemistry through visits of foreign nationals. AACC will approve and designate such visitors for entry into this country for advanced education and training in clinical chemistry. Dr. Martin Rubin, Georgetown University Medical School, Washington, D . C ,
ACS LOCAL SECTIONS PLACE
California. Physical Sciences Lecture Hall, University of California, Berkeley North Jersey (Central Subsec tion). Elizabeth-Carteret Ho tel, Elizabeth, N.J.
JUNE
SPEAKER
SUBJECT
21
Thomas Becnel
Ethylenimine—The the Challenge
Promise
15
Leland C. Allen
Noble Gas Compounds
and
chairman of the Education and Scholarship Committee of AACC and U.S. representative to the IUPAC Commission on Clinical Chemistry, is responsible for administration of the program.
SOLUBLE β
the nature of silicate coatings SILICATES BECOME INSOLUBLE COATINGS WITH TOTAL EVAPORATION Example: "M11 sodium silicate (3.22Sî02:Na20)coniûins 37.fc% solids. Viscosi+y=l.8Poises/20°c. I wrth&% water loss, viscosity=72 Poises with 127ο water loss, viscosity=^,IOO Poises with W7o Water loss,viscosity=40,000poises(ûpprox.)
Men and Molecules... . . . released for broadcast after June 11 is titled "Semiconductor Lasers" and features Dr. Richard Carlson of GE Research Labora tory. See "ACS on the Air" listings beginning on page 8 1 , C&EN, May 3, for stations broadcasting in your area. Each week C&EN announces here the "Men and Molecules" program to be re leased the following Friday. Call your local station to find out when specific programs you are interested in will be broadcast.
SILICATES
|
On further dehydrotÎon"N"forms q hard,ri^id coatinf.
Sodium and potassium silicates form quick-drying, hard coatings by losing water. These coatings can best be described in terms of properties. THICKNESS. Films as thin as 0.001" can provide effective protection for steel.
CALENDAR OF EVENTS
American Chemical Society 150th National Meeting. Atlantic City, N.J. Sept. 12-17, 1965. Winter Meeting. Phoenix, Ariz. Jan. 16-21, 1966. 151st National Meeting. Pittsburgh, Pa. March 22-31, 1966. 152nd National Meeting. New York, N.Y. Sept. 11-16,1966. 153rd National Meeting. Miami Beach, Fla., April 9-14, 1967. 154th National Meeting. Chicago, 111. Sept. 10-15, 1967. ACS Division of Analytical Chemistry and Analytical Chemistry. Summer Symposium. University of Wisconsin, Madison, Wis. June 8-11 (C&EN, May 3, page 76). ACS Division of Organic Chemistry. 19th National Organic Symposium. Arizona State University, Tempe, Ariz. June 13-17 (C&EN, April 19, page 98). ACS Division of Colloid and Surface Chemistry. 39th National Colloid Symposium. Clarkson College of Technology, Potsdam, N.Y. June 2 1 23 (C&EN, May 10, page 60). ACS Northwest Regional Meeting. Ore gon State University, Corvallis, Ore. June 14-15 (C&EN, May 10, page 63). ACS Division of Physical Chemistry. Summer Symposium. State University of New York at Buffalo, N.Y. June 28-30 (C&EN, April 19, page 99). Chemical Educational Projects Chemical Exposition. Atlantic City, N.J. Sept. 14-16,1965. Other Organizations American Institute of Chemical Engi neers and Institution of Chemical Engi neers. London, England. June 13-17. International Union of Pure and Applied Chemistry. XXIIIrd Conference. Paris, France, July 2-9. XXth Interna tional Congress. Moscow, U.S.S.R. July 12-18.
THERMAL. Anhydrous silicate has remarkably high resistance to temperatures up to 1200°F. Adding metal powders increases this to 2000°F. ELECTRICAL. When dehydrated, PQ sodium silicate films have good dielectric properties. Mixtures of graphite or powdered metal and silicate produce conductive coatings. MOISTURE RESISTANCE. Removing all water from silicate by baking, or by neutralizing the alkali through acid-treatment, insolubilizes the film. Silicates are especially effective in combination with styrene-butadiene latex to protect paperboard against various oils. GREASE RESISTANCE. Silicate greaseproofs paper carton stock, or acts as a priming coat for other materials. OPACITY. Add clay, titania or other pigments to make silicate films opaque. Send the coupon for your copy of Bulletin T-17-52, "Fundamentals of Silicate Coatings and Films." 1
Please s e n d B u l l e t i n T - 1 7 - 5 2 . We have possible i n t e r e s t in silicate f i l m s for_
•
S e n d m o n t h l y h o u s e o r g a n , "Silicate
P's and
NAME
Q's" TITLE_
COMPANY. ADDRESS_ CITY
ft ®
Trade Marks Reg.Trade U.S. Marks Pat. Off. Reg. U.S. Pat. Off.
_2IP_
_STATE_
PHILADELPHIA
QUARTZ
COMPANY
1162 Public L e d g e r Building, Philadelphia, Pa. 1 S 1 0 6 P H I L A D E L P H I A Q U A R T Z C O . of C A L I F O R N I A , B e r k e l e y . Calif. N A T I O N A L S I L I C A T E S LIMITED, Toronto, Ontario 14 P L A N T S · D I S T R I B U T O R S IN 9 0 CITIES IN U.S. A N D C A N A D A JUNE
7,
1965
C&EN
73
