Document dQ7wVoK0xwqykyZv07b2QQ3g6

July 1, 1959 Ref: 595 Hr. R. D, Bradford NEW YORK OFFICE RECENT PUBLICATIONS ON ASBESTOS 152, Kennecott Copper Corp, Annual meeting of stockholders, summary report, May $, 1959. "In reply to a question about Kennecott*s plans for developing its new asbestos prop erty in Greece, the statement was made that at present the company is considering whether to develop the property alone or with the help of a partner, and that a decision is expected soon. James Boyd, Vice President (Exploration) estimated that it would take something less than two years to get into production." (this paragraph copied in its entirety) 153. Mining World 21, #4, 19 (April 1959) "Two major United States copper firms, Phelps Dodge Corporation and Kennecott Copper Corpora tion, are busy staking claims on northern British Columbia discoveries, PD is staking asbestos on Telegraph Creek and Kennecott molybdenite southwest of Dease Lake." (this item is copied here in its entirety) 154* Business Periodicals Index 1, #16, 8 (May 1959) anon Asbestolux offers work ability, durability as material for fabricating ductwork Air Conditioning, Heating & Refrigerating News BFT 68 (Jan. 26, 1959) 155. Chem. Abst. 96l0h (Hay 25, 1959) Stamboliev, Hristo Corrosion of asbestos-concrete products in mineral water. Zastlta materljala , 428-32 (1957) "In studies on the corrosion of asbestos- concrete pipes in sulfate waters it was found that under some conditions, o.g, samples dipped in 5$ Na2S04 and stored at 70 for 3 months, a protective layer is formed. The protective layer is composed of CaC03, Mg(OH)2> and silica gel," (complete abstract) ! ASARCO ALV 0001294 2 156. Monthly Index of Russian Accessions 12, 422 (May 19591 Vashchenko, I, I. Using asbestos waste in preparing asphalt-concrete mixes Avtomobil'nye Dorogl (Highways) 22, #1 (195)> 16-17 (Jan. 1959) 157. Monthly Index of Russian Accessions 12, 4^8 (May 19591 Taranenko, I.T. & Shchtenin, V.K. Effect of components on properties of asbestos friction materials Moscow. Vsesoyuz. nauch.-Issledovatel. Inst. Zheleznodorozhnogo Transporta (All-Union Sci, Research Inst, of Railroad Transportation) #163, 61-65 (1958) 158. Asbestos 40, #12 (June 1959) Contents: Cape Asbestos Company Limited, London, England, a world wide organization New trends in the asbestos cement industry Profile--A.R. Fisher, Johns-Manville Corp. Over SO years of asbestos mining in Finland Building Automobile sales Market conditions Production statistics Imports and exports Asbestos stock quotations News of the industry Current range of price 159. Ceram. Abst. 169j (June 1959) Pharo, Merritt C. (to Johnson's Co., Ltd.) Asbestos fiber recovery from tailings U.S. 2,874,838 (Feb. 24, 1959) 160. Chem. Abst. Sl> 9920h (June 10, 1959) Artemov, V.R. Perspectives of the chrysotile-asbestos occurrences on the eastern slope of the Southern Ural Sovet. Geol. 1958, No. 10, 100-16 "..,These deposits are more of scientific than of economic interest, the asbestos being restricted to thin veinlets and seams rarely more than 8-10 mm. in width. Only in Naslednitsk, Uspensk, and Akkarginsk useful asbestos mining may be hopeful..." ,1 ASARCO ALV 0001295 -3- 161. Chem. Abst. 51, 106l0g (June 10, 1959) Bobyleva, A.T, et al Amount of dust in the residential sections of the city Asbest and its effect on the children's health Gigiena i Sanit. 21, No. 11, 9-12 (1958) "At 1-1,5""km. from the asbestos factories the av. dust content in the atm. was 11.4-18.9 mg./cu. m. Of this, 45.4-52.4$ is below 1 u in diam., 32.4-9.3$ is 1-5 u. Comparison of the health of children ages 7-14 years living in a dusty part of town with that of those living in less dusty shows that they have a lesser lung vol, and an increased incidence of respiratory diseases." (complete abstract) 162. Chem. Abst. 51, 1065lh (June 10, 1959) Siemens-Schuckertwerke Akt.-Ges. (Robert Schwarz and ^'ilhelm Kuchen, inventors) Adhesives especially for mica, asbestos, and glass fibers, Ger. 951,159 (Oct. 25, 1956 (Cl. 22i, 2) "Hydroxycarboxylic acids, the OH groups of which are adjacent to the C00H groups, or their esters are treated with SiClj^ in a chlorinated hydrocarbon solvent to give a polycondensate which is used as a heatresistant adhesive. Fillers can be added. Thus, 52 g. He salicylate was treated with 100 ml. CHCI3 and 19 ml. SiClh, heated at 60 for 2 hrs., evapd., heated in vacuo at 220, and allowed to cool to give an amberlike mass. The resin was dissolved in boiling chlorinated hydrocarbons and the soln. was used as an adhesive. Curing is carried out by heating the bonded parts." (complete abstract) I63. Chem. Eng. News 37. #24, 56 (June 15, 1959) "Astrodyne Corp., iicGregor, Tex., has developed a new solid fuel rocket motor insu lation for the Navy Bureau of Ordnance, The rubber and asbestos combination is expected to extend the burning time of present high per formance solid fuel rocket motors to three or four times the present burning periods of one minute or less, says the Navy Department, The insulation is a butadiene copolymer (butadiene/methyl vinyl pyridine) combined with asbestos powder (Johns-Hanville 7TF-1)in various proportions depending upon the application,,.." ,1 ASARCO ALV 0001296 -4 - 164. Eng, Mining J. 160, #6, 398 (June 1959) "The tlashaba Rhodesian Asbestos Co, Ltd, has exercised options on the D.S,0. and Rosey Cross asbestos mines in the Victoria mining district of Southern Rhodesia," (this item is copied here in its entirety) 165. Nebesky, V. Packings,,.construction and materials. Part 10 (in German) Gumml u. Asbest 12, 397-398 (June 1959) 166. anon Asbestos, TFE resin resist liquid oxygen Materials in Design Eng. 49, #6, 128, 130 (June 1959) Short note about impact tests performed by D, E, Clippinger and G.J. Morris of Martin Co. to test resistance to explosion. 167. U.S, Bureau of Mines Industrial minerals: asbestos Mineral Trade Notes 48, #6, 23-24 (June 1959) Asbestos production and trade in Yugoslavia 1955-1957. 168. Mining World 21. #7, 89 (June 1959) "Crocidolite production by Australian Asbestos at VMttenoom Gorge is steadily increasing and is now at a rate of 13,000 tons per year. This deposit is capable of larger output but markets still are the governing factor. Asbestos ex ports from Australia (practically all from Mittenoom) are nearly 1,000 tons per month. On the other hand, imports of all types continue to increase and approximate 30,000 tons per year." (this item is copied here in its entirety) 169. Mack, K.A. How Ford automates polyester premixing Mod. Plastics ^6, #10, 128, 206-207 (June 1959) Fillers and resin are measured and mixed by an automatic machine called a Ko-Kneader made by the Chemical Machinery Division of Baker- Perkins, Inc,, Saginaw, Michigan, ,I ASARCO ALV 0001297 -5- 170, Van Rysselberge, J, F. Hyperbolic towers deserve study Power Ehg. 63, #6, 96-97 (June 1959) Natural draft concrete cooling towers with asbestos cement packing are discussed. H. McBride lk ,l ASARCO ALV 0001298