摘要:
A dispersion control device for use in a toilet tank for dispensing a soluble solid, in solution, in a controlled manner into the tank, includes a cap (1) having a conical portion (3) which extends inwardly and downwardly into the interior of the cap. The cap is attached to a container (11) which contains the soluble solid, and the cap has a plurality of openings (5) in the walls of the conical portion and a hole (7) at the vertex (9) of the conical portion. In operation, the conical portion of the cap defines an intermediate holding chamber (B) which holds and allows dispersion of a specified concentration and predetermined amount of solution into the tank, as a result of the flows that occur during flushing.
摘要:
Disinfection of aqueous media (1) contaminated with microorganisms is effected by contacting said media with a gas phase (5) in which a plasma (6) is generated by focused laser radiation (10). Similarly, wastewaters containing organic substances are purified by contacting them with an oxygen-containing gas phase in which a plasma is generated by focused laser radiation which promotes oxidation of the organic substances to innocuous products.
摘要:
An aqueous cleaning, coating and polishing composition consisting essentially of 1 to 20% by weight of a water insoluble alkali soluble addition polymer comprising at least one hydrophilic monomer selected from acrylic acid and methacrylic acid and at least one hydrophobic monomer selected from alkyl acrylate and alkyl methacrylate, where alkyl has from 1 to 6 carbon atoms, and at least one hydrophobic monomer selected from styrene and monoalkylstyrene where monoalkyl has from 1 to 6 carbon atoms, 1 to 13% by weight of an alkali soluble 2:1 to 3:1 styrene:acrylic acid resin, 5 to 15% by weight of a fugitive plasticizer, 1 to 3% by weight of a permanent plasticizer, 0.01 to 0.05% by weight of an anionic or nonionic fluorocarbon surfactant leveling agent, 0.0003 to 0.003% by weight of a dimethylpolysiloxane antifoaming agent; 0.0003 to 0.003% by weight of a 1,2-benzoisothiazol-3(2H)-one or 3(2H)-isothazolone preservative, ammonia to provide a pH of 8.0 to 9.6 and water q.s. to 100%, the composition having a content of solids of from 10 to 25% by weight.
摘要:
N-[(alkylamino)alkyl]3,4 (or 4,5)-diaryl-1H-pyrazole-1-(branched)alkanamides and pyrazole-1-alkanamines useful for treating cardiac arrhythmias in mammals, are prepared by reacting a lower-alkyl ester of pyrazole-1-acetic acid with an appropriate diamine followed by reduction or by reacting the anion of a lower-alkyl ester of a pyrazole-1-acetic acid with an alkylating agent followed by displacement of the ester by an appropriate amine.
摘要:
A method of regulating fertility in cattle which comprises administering to a normally cycling cow in the early luteal phase of the cycle an amount of epostane sufficient to induce estrus.
摘要:
Compounds of the formula are disclosed, wherein: Y is an alkylene bridge of 3-9 carbon atoms; Z is N or HC; R is hydrogen or lower-alkyl of 1-3 carbon atoms, with the proviso that when Z is N, R is lower-alkyl; R 1 and R 2 are each hydrogen, halogen, methyl, nitro, lower-alkoxycarbonyl or trifluoromethyl; and Het is a heterocyclic group, and pharmaceutically acceptable acid addition salts thereof, as well as methods for preparation and use thereof. The compounds exhibit valuable antiviral properties.
摘要:
A method of regulating fertility in cattle which comprises administering to a normally cycling cow in the early luteal phase of the cycle an amount of epostane sufficient to induce estrus.