10 results for “Union Carbide Corporation”
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Company document · Union Carbide documents · June 14, 1966
U.S. Patent 3,256,106, Sulfur Treated Asbestos, W. H. Dresher and H. F. Reichard, assigned to Union Carbide (1966)
U.S. Patent 3,256,106, issued June 14, 1966, describes a process of treating dry chrysotile asbestos, especially Coalinga-type, with sulfur dioxide gas to reduce discoloration in vinyl-asbestos tile mixtures. It gives test tables on sulfur content,…
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Company document · Union Carbide documents · January 14, 1969
U.S. Patent No. 3,421,975, Reversible Flocculation and Redispersion of Chrysotile Asbestos (Woolery and Dresher, assignors to Union Carbide) (1969)
…1965, and issued January 14, 1969, to Union Carbide Corporation as assignee. It describes a process for flocculating chrysotile asbestos dispersed in water by raising the pH to 6.0-10.5, filtering and drying it…
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Company document · Union Carbide documents · June 26, 1964
A. W. Naumann and W. H. Dresher, Research Report No. 61: Physical Properties of Coalinga Asbestos, I. Morphology as Inferred from Nitrogen Adsorption Data (1964)
A 1964 Union Carbide Nuclear Division research report presenting nitrogen-adsorption surface-area measurements on Coalinga chrysotile asbestos (flake, bladed, serpentinite, cross-fiber, and pilot-plant products) compared with Canadian and Stragari (Serbia) chrysotile. It reports…
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Company document · Union Carbide documents · May 1968
A. W. Naumann and W. H. Dresher, Colloidal Suspensions of Chrysotile Asbestos: Surface Charge Enhancement (1968)
Journal article from the Journal of Colloid and Interface Science (vol. 27, no. 1) reporting laboratory work on aqueous suspensions of chrysotile asbestos, using New Idria, California chrysotile. It describes how salts of multivalent cations…
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Company document · Union Carbide documents · November 5, 1968
U.S. Patent 3,409,499, Dresher and Naumann, Chrysotile Asbestos Fiber Dispersion Including Monocarboxylic Acid (1968)
…filed May 14, 1965, assigned to Union Carbide Corporation. It describes a process for making stable water dispersions of finely divided chrysotile asbestos by adding a monocarboxylic acid and applying high-speed shearing forces. It gives…
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Company document · Union Carbide documents · May 26, 1964
W. H. Dresher to Dr. Henry Chitwood on Asbestos as an Oxidation Catalyst in Sewage Treatment, with Enclosed Report (1964)
…which W. H. Dresher told Henry Chitwood of experiments in which Union Carbide's asbestos catalyzed oxidation of potassium iodide and appeared to improve activated sludge sewage plants. He enclosed a report dated May 15, 1964…
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Patent · November 5, 1968
Chrysotile asbestos fiber dispersion including monocarboxylic acid (US Patent 3,409,499, 1968)
…499 on November 5, 1968, filed May 14, 1965. It was assigned to Union Carbide Corp. The patent's description opens: This invention relates to a process for producing stable dispersions of finely divided, chrysotile asbestos.
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Patent · January 10, 1967
Process for dispersing asbestos (US Patent 3,297,516, 1967)
Alfred W. Naumann and William H. Dresher received US Patent No. 3,297,516 on January 10, 1967, filed August 28, 1963. It was assigned to Union Carbide Corp.
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Patent · January 14, 1969
Reversible flocculation and redispersion of chrysotile asbestos (US Patent 3,421,975, 1969)
…It was assigned to Union Carbide Corp. The patent's description opens: This invention relates to a method for producing a dry finely divided chrysotile asbestos product which is readily capable of being redispersed in water…
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Patent · June 14, 1966
Sulfur treated asbestos (US Patent 3,256,106, 1966)
…December 1, 1964. It was assigned to Union Carbide Corp. The patent's description opens: The present invention relates to novel, sulfur dioxidetreated asbestos having unique and useful properties and a process for producing the same.