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| Number | Title | Issue Date |
| 4071333 | Abrasive scouring block (and support therefor) Hard surface scouring or cleansing composition, more particularly a scouring block comprising a non-ionic detergent, a long-chain fatty alcohol and an abrasive material.... | 01/31/1978 |
| 4057939 | Silicon wafer polishing The polishing of monocrystalline silicon wafers with an aqueous composition of fine sized abrasive particles, a soluble alkali metal base such a sodium carbonate and an oxidizing agent such as sodium or potassium salt of dichloroisocyanuric acid (e.g., sa... | 11/15/1977 |
| 4048294 | Preparation of stannic oxide An improved method is provided to reproducibly obtain stannic oxide of a type suitable for polishing plastic lenses. The optical density, bulk density and color of the oxide are within specified limits.... | 09/13/1977 |
| 4022625 | Polishing composition and method of polishing A polishing composition suitable for polishing semi-conductive materials, e.g. silicon and germanium, comprises an aqueous slurry containing as a polishing agent a finely divided calcium-titanium-zirconium-oxygen product having the empirical formula CaTiZ... | 05/10/1977 |
| 4011099 | Preparation of damage-free surface on alpha-alumina A chemical polishing process for alpha-alumina utilizing a silica colloid polishing fluid which is both a reactant and a medium for the removal of the reaction product is disclosed.... | 03/08/1977 |
| 4006026 | Method of improving the tarnish resistance of silver The tarnish resistance of silver and silver alloy surfaces can be improved by brief contact in a liquid medium with compounds of quadrivalent tin bound by at least one valence to alkyl having 2 to 22 carbon atoms, and by the remaining valences to sulfur, ... | 02/01/1977 |
| 4000080 | Low phosphate content detergent composition A low phosphate content detergent composition comprising about 10% to about 25% by weight phosphate builder, about 3% to 30% hardness mineral ion insensitive detergent, about 0.5% to about 3% maleic anhydride-vinyl compound copolymer, and from about 0.5% ... | 12/28/1976 |
| 4000168 | Carboxylated polyfluoroamines This invention relates to carboxylated polyfluoroamine compounds of the general formula ##STR1## wherein the radical Cn F2n.sub.+1 -- is a straight or branched perfluorinated chain, n is an integer from 1 to 20, a is an integer ... | 12/28/1976 |
| 3966432 | Liquid abrasive compositions containing a silicate suspending agent There is disclosed a liquid abrasive composition comprising an aqueous suspension of a substantially water-insoluble particulate abrasive, a nonionic surfactant and a suspending agent selected from natural and synthetic clays, hydrophobically treated clay... | 06/29/1976 |
| 3960574 | Detergent resistant auto polish Polishes are made detergent resistant by incorporating therein carboxyfunctional siloxanes.... | 06/01/1976 |
| 3959530 | Cleaning and protective coating composition and method A waxing and protective coating composition embodying the invention comprises a mixture of wax residue such as paraffin and microcrystalline wax, chlorinated solvent, petroleum distillate, and a nonionic surfactant such as nonylphenoxypoly-(ethyleneoxy)et... | 05/25/1976 |
| 3930870 | Silicon polishing solution preparation An improved process for preparing a polishing solution for use in the chemical-mechanical polishing of silicon comprising copper nitrate, ammonium fluoride, nitric acid and ammonium nitrate. The latter two components are added to the copper nitrate, the s... | 01/06/1976 |
