Abstract:
WATER-SOLUBLE AMINE SALTS OF STYRENE-MALEIC ANHYDRIDE COPOLYMER RESINS AND HALF-ESTERS THEREOF ARE EMPLOYED IN AQUEOUS SOLUTIONS AS COOLANTS AND LUBRICANTS FOR METAL WORKING AND OPERATIONS. METAL WORKING LUBRICANT COMPOSITIONS ARE ALSO FORMULATED WITH COMPRISE THESE AMINE SALTS ALONG WITH EXTREME PRESSURE AGENTS SUCH AS AMINE SALTS OF FATTY ACIDS AND ORGANIC PHOSPHATE ESTERS. OTHER ADDITIVES MAY ALSO BE EMPLOYED IN THE LUBRICATING COMPOSITIONS OF THIS INVENTION.
Abstract:
AQUEOUS COOLING COMPOSITIONS, SUITABLE FOR USE IN METAL WORKING, ARE PREPARED WHICH CONTAIN A MINOR AMOUNT OF A WATER-SOLUBLE SALT OF A COPOLYMER OF STYRENE AND MALEIC ANHYDRIDE OR A PARTIAL ESTER THEREOF, OR A WATERSOLUBLE PARTIAL ESTER OF TE COPOLYMER, TOGETHER WITH A MINOR AMOUND OF BORIC ACID OR OTHER BORON COMPOUND WHICH YIELDS BORIC ACID ON HYDRATION. IMPROVEMENT IN LUBRICATING PROPERTIES OF THE COMPOSITION ARE REALIZED BY INCORPORATING A MINOR AMOUNT OF A WATER-SOLUBLE EXTREME PRESSURE AGENT SUCH AS AN ORGANIC PHOSPHATE ESTER OR WATER-SOLUBLE OR DISPERSIBLE SOAPS OF FATS, FATTY ACIDS OR DERIVATIVES THEREOF.
Abstract:
Cutting fluids for brittle materials, e.g., silicon ingot, comprise, in weight percent: A. 70-99% polyalkylene glycol (PAG), e.g., polyethylene glycol; B. 0.01-10% PAG-grafted polycarboxylate; and C. 0-30% water. These cutting fluids are used with abrasive materials, e.g., silicon carbide (SiC), to form cutting slurries. The slurry is sprayed on the cutting tool, e.g., a wire saw, to cut a brittle work piece, e.g., a silicon ingot.
Abstract:
A refractory formulation containing an anhydrous solvent, an oleophilic rheology modifier and a refractory aggregate exhibits non-thermoplastic behavior, and remains plastic and formable at temperatures in the range of 10 degrees Celsius to 180 degrees Celsius. The oleophilic rheology modifier may effectively bind with the solvent to create a gel-like structure with organic solvents with moderate to high polarity. A phyllosilicate clay that has been treated with a quaternary fatty acid amine may be used as the oleophilic rheology modifier.
Abstract:
The present invention relates to a process for reducing the total acidity of refrigerating compositions comprising at least one refrigerant with at least one lubricant, said process comprising at least one stage of bringing said composition into contact with at least one zeolitic adsorbent based on powder formed of zeolite(s) or on agglomerates formed of zeolite(s).