Abstract: The following halocyclopropyl halomethyl ethers have been synthesized and found to possess utility as general inhalation anesthetics:1-chloro-2-chlorofluoromethoxy-1,2,3,3-tetrafluorocyclopropane, 1-chloro-2-difluoromethoxy-1,2,3,3-tetrafluorocyclopropane, 1-bromo-2-chlorofluoromethoxy-1,2,3,3-tetrafluorocyclopropane and 1-bromo-2-difluoromethoxy-1,2,3,3-tetrafluorocyclopropane.

Abstract: The following chlorocyclopropanes have been found to possess utility as general inhalation anesthetics: 1,1-dichloro-2-methyl-2,3,3-trifluorocyclopropane, 1,2-dichloro-1-fluoro-2-methylcyclopropane, 1,1,2-trichloro-2,3,3-trifluorocyclopropane, 1,1-dichloro-2-trifluoromethyl-2,3,3-trifluorocyclopropane, 1,2-dichloro-1,2,3,3-tetrafluorocyclopropane, 1,1,2,2-tetrachloro-3,3-difluorocyclopropane and 1,1-dichloro-2,3,3-trifluorocyclopropane.THE PRIOR ARTIn the continuing search for general inhalation anesthetics, there has been recently discovered a few halocyclopropanes and methylhalocyclopropanes and some methyl halocycloproyl ethers. These compounds are disclosed in U.S. Pat. Nos. 3,865,950, 3,839,589 and 3,769,429 as well as in pending applications Ser. No. 499,761 (filed Aug. 22, 1974) for the methylcyclopropanes, and Ser. No. 451,677 (filed Mar. 15, 1974) for the methyl ethers.

Abstract: 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 chelant-surfactant having a hydrophobic moiety and a chelating moiety through which the chelant-surfactant chelates with the metalliferous surfaces and provides a hydrophobic barrier to deposition of hydrophilic foulants.

Abstract: A plastics introducing unit for a closure lining machine in which pellets are severed from a continuous rod and carried along part of a closed path to a transfer station where the pellets are deposited accurately centrally of the closures to be subsequently moulded into liners for the closures.

Abstract: The setting time of quick-setting magnesium oxide-ammonium phosphate concretes is extended by the addition of specified oxy-boron compounds such as sodium borate. The incorporation of the oxy-boron compound in the composition has also been found to increase the extended or overall compressive strength of the composition.

Abstract: The following halogenated cyclobutyl ethers have been found to possess utility as general anesthetics: 1-chloro-2-methoxy-1,2,3,3,4,4-hexafluorocyclobutane, 1-chloro-2-methoxy-1,4,4-trifluorocyclobutane and 1-bromo-2-methoxy-1,2,3,3,4,4-hexafluorocyclobutane.

Abstract: Novel external waterstops for use in sealing concrete joints which comprise a deformable section which forms a grout-tight seal when stop-end shuttering is positioned against the waterstop.

Abstract: New vinylidene chloride copolymer latexes have been prepared with a hydroxyalkyl ester comonomer and acrylamido-2-methylpropane sulfonic acid. These products can be used to coat unprimed polyolefin film and yield laminates having dynamic peel strengths as high as 2400 g/in, that is equivalent to or greater than the peel strength of laminated uncoated polyethylene film itself.

Abstract: Battery separators and the like are produced from non woven mats of thermoplastic fibers which fibers contain an internal wetting agent that is relatively insoluble in battery electrolite and tends to bloom under conditions of use. After preliminary formation the nonwoven mat is heated and then compressed to increase the effectiveness of the wetting agent. The fibers may be formed from polypropylene resin that is treated at unusually high temperatures prior to extrusion and the extrudate attenuated, collected on a drum and compressed to form a preferred separator with small pores and high porosity.

Abstract: The compound 1-chloro-2,2-dimethyl-1,4,4-trifluorocyclobutane has been found to possess useful properties as a general inhalation anesthetic.

Abstract: The following halocyclopropyl halomethyl ethers have been synthesized and found to possess utility as general inhalation anesthetics:1-chloro-2-chlorofluoromethoxy-1,2,3,3-tetrafluorocyclopropane, 1-chloro-2-difluoromethoxy-1,2,3,3-tetrafluorocyclopropane, 1-bromo-2-chlorofluoromethoxy-1,2,3,3-tetrafluorocyclopropane and 1-bromo-2-difluoromethoxy-1, 2,3,3-tetrafluorocyclopropane.

Abstract: The following newly synthesized bromofluoromethylcyclopropanes have been found to possess utility as general inhalation anesthetics: 1-bromo-1,2-difluoro-2-methylcyclopropane and 1-bromo-1-fluoro-2-methylcyclopropane.