Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 4018702 | Corrosion inhibition with amine adducts of maleic anhydride polymers A method of inhibiting corrosion and scale formation in an aqueous system is disclosed which comprises the step of treating the said system with 0.1 to 500 parts per million by weight of the total aqueous content of the said system, of a composition which... | 04/19/1977 |
| 4008164 | Process for scale inhibition Copolymers of acrylic acid and methyl acrylate are prepared which are stable against precipitation in waters containing calcium even at a pH of 10 and at elevated temperatures and are especially useful in inhibiting the deposition of calcium from waters c... | 02/15/1977 |
| 4006081 | Method for preventing gelation of thermosetting resins in waste water A method for preventing the gelation of thermosetting resin glues or varnishes in waste wash water characterized by mixing urea in to the waste water which principally contains resorcinol resin obtained by reacting resorcinol with formaldehyde or phenol m... | 02/01/1977 |
| 4001134 | Scale inhibiting process A process for inhibiting scale formation in sea water distillation plants by adding threshold quantities of copolymers of maleic anhydride with allylacetate.... | 01/04/1977 |
| 3989637 | Corrosion inhibitors and processes for using the same Carboxylated lactones of the general formula ##EQU1## wherein R1 and R2 are individually selected from hydrogen, hydroxy, alkyl, hydroxyalkyl, --COOM, --CHOHCOOM, --CH2 COOM and a 1,3-dioxolane, 5-oxo group, and R | 11/02/1976 |
| 3988253 | Composition and method for treating scale Composition and method for the treatment of inorganic mineral scale, using a treating composition consisting of a water soluble substituted taurine of prescribed formula in an amount of from 0.0005% to about 0.005%, on a weight basis.... | 10/26/1976 |
| 3981779 | Inhibition of scale on saline water heat exchange surfaces with iminodiacetic acid compounds A method for decreasing fouling of metalliferous surfaces of apparatus wherein water is evaporated from an aqueous system containing components which deposit onto the surfaces as hydrophilic foulants. The method comprises adding to the aqueous system a ch... | 09/21/1976 |
| 3979315 | Method for treating scale Composition and method for the treatment of inorganic mineral scale, particularly calcium and/or barium sulfate scale, using a treating composition consisting of a water-soluble sulfonated ethoxylated alkylphenol of prescribed formula in an amount of from... | 09/07/1976 |
| 3975281 | Method for treating scale Composition and method for the treatment of scale, particularly calcium and/or barium sulfate scale, using an alkyl benzene sulfonate, including the alkali metal and ammonium salts thereof, said alkyl group containing from about 8 to about 14 carbon atoms... | 08/17/1976 |
| 3974083 | Control of corrosion and scale in circulating water systems by means of partial esters of polyfunctional organic acids For inhibiting corrosion and scale on ferrous metal parts in a circulating water system there is added to the water in such system from 10 to 500 ppm of a partial ester of a polyfunctional acid having a free carboxylate, phosphonate or sulfonate group and... | 08/10/1976 |
| 3970691 | Etherification of bark extracts A derivative of coniferous tree barks is produced by reacting at elevated temperatures an alkaline polyphenolic solution of a coniferous bark extract in the proportion of from 0.1, and preferably from 0.5 to 8.0 moles of a carbonylactivated halocompound p... | 07/20/1976 |
| 3965027 | Scale inhibition and corrosion inhibition A method of inhibiting corrosion and scale formation in an aqueous system is disclosed which comprises the step of treating the said system with 0.1 to 500 parts per million by weight of the total aqueous content of the said system, of a composition which... | 06/22/1976 |
| 3962110 | Process and composition for preventing scale build-up A process and composition for the treatment of oil and gas wells to prevent and/or inhibit the build-up of an undesirable inorganic mineral scale deposits in which an aqueous solution of a vinylpyrrolidone polymer is employed in an amount sufficient to pr... | 06/08/1976 |
| 3956164 | Chelating agents Combination of ethylenediaminetetraacetic acid and nitrilotriacetic acid or water soluble salts thereof for the removal and prevention of scale in steam generators.... | 05/11/1976 |
| 3951793 | Method for controlling scale Composition and method for the treatment of scale, particularly calcium and/or barium sulfate scale, using a treating composition consisting of about one part by weight of a sulfated/sulfonated polyethoxy alkyl phenol containing from about 8 to about 14 c... | 04/20/1976 |
