摘要:
A new pyrethroid compound which is low in toxicity to fish and a pesticidal composition containing the same as an active ingredient are provided. The above pyrethroid compound is a substituted cyclopropanecarboxylic acid ester of the general formula: ##STR1## (wherein A is a hydrogen atom or an ethynyl group) Despite its broad pesticidal spectrum and high pesticidal activity, this ester is very low in toxicity to man and domestic animals and especially low in toxicity to fish as compared with the conventional pyrethroid compounds.
摘要:
Racemic modifications each consisting of specific isomers of .alpha.-cyano-3-phenoxybenzyl cis- or trans-2,2-dimethyl-3-(2,2,2-trichloroethyl)cyclopropanecarboxylate with the absolute configurations [.alpha.S, 1R] an [.alpha.R, 1S] with respect to the asymmetric carbon atoms in the alcohol and acid moieties, a method of producing the same and pesticidal compositions containing the same as active ingredient are provided. .alpha.-Cyano-3-phenoxybenzyl cis- or trans-2,2-dimethyl-3-(2,2,2-trichloroethyl)cyclopropanecarboxylate has higher pesticidal activities than those pesticides that are in general use and consequently selective production of the above specific racemic modification as defined by the combinations of the absolute configuration with respect to the asymmetric carbon atom at the position in the alcohol moiety and the absolute configuration with respect to the asymmetric carbon atom in the acid moiety provides compounds having still higher pesticidal activities.
摘要:
A peelable adhesive structure comprises a plurality of articles, including at least one metal article, bonded together through a composite coating layer. The composite coating layer comprises adjacent first and second coating layers, the first coating layer containing vinyl resin, and the second coating layer containing epoxy resin. At least one of the coating layers comprises:(a) a peeling imparter at a concentration of between about 50 and 200 parts by weight per 100 parts of resin, and(b) a substantially linear saturated polyester wetting improver at a concentration of between about 2 and 50 parts per 100 parts of resin and having a molecular weight of between about 5,000 and about 50,000.Alternatively, at least one of the coating layers comprises a hydrocarbon or natural resin having a softening point less than 180.degree. C. and having a concentration between about 50 and 200 parts per 100 parts of resin. The vinyl resin or the epoxy resin is in the form of a continuous phase, and the hydrocarbon or natural resin is in the form of a dispersed phase.The adhesive structure has a peel strength of from 0.05 to about 5 kg/cm between the first and the second coating layers.
摘要:
Container closure having an easily openable liner, said liner being composed of a composition comprising a base resin consisting of 95 to 30% by weight of a crystalline polyolefin and 5 to 70% by weight of a lowly crystalline or amorphous copolymer of ethylene with otherolefin, a lubricant in an amount of 0.001 to 5% by weight based on said base resin and a polymer containing at least 10% by weight of a conjugated diene in an amount of 1 to 15% by weight based on said base resin. This closure has a good sealing property and an easy openability in combination.
摘要:
When a polyolefin layer is bonded to a metal substrate through a primer layer, if a polar group-containing ethylenically unsaturated monomer-modified olefin resin (A) having a specific polar group concentration and a specific degree of crystallinity and a coating film-forming base resin (B) are incorporated at a specific ratio into a specific mixed solvent to form a paint and the primer layer is formed by using this paint, there is obtained a novel multi-layer distribution structure comprising the base resin distributed predominantly in the portion of the primer layer contiguous to the surface of the metal substrate and the modified olefin resin distributed predominantly in the portion of the primer layer contiguous to the polyolefin layer and having a concentration gradient of the two components (A) and (B) in the thickness direction. By virtue of the presence of this primer layer, the bonding strength between the metal substrate and the polyolefin and the corrosion resistance of the metal substrate as well as the processability of the polyolefin-metal bonded structure are substantially improved.
摘要:
An olefin resin-metal bonded structure having a desirable combination of high corrosion resistance and peel strength, which comprises a metal substrate and an olefin resin layer bonded together through a primer layer, said primer layer containing (A) an oxidized polyethylene having an oxygen content of 0.1 to 10% by weight, a saponification value of 2 to 200, a density of 0.90 to 1.2 and an average molecular weight of 1000 to 50000 and (B) a coating-forming base resin having a density higher by at least 0.1 than the oxidized polyethylene and containing a functional group selected from hydroxyl and carbonyl groups at a concentration of at least 1 meq/g, the mixing weight ratio of the oxidized polyethylene (A) and the base resin (B) being within the following range:(A) : (B) = from 0.2 : 99.8 to 45 : 55, wherein said primer layer has a multi-layer structure in which each of the concentrations of the oxidized polyethylene (A) and the base resin (B) is changed with respect to the thickness direction with a certain gradient so that the base resin (B) is distributed predominantly on the side of the surface of the metal substrate and the oxidized polyethylene (A) is distributed predominantly on the side of the surface of the olefin resin.
摘要:
A movable discharge device for use in a particle/bulk material storage silo includes: a travel body configured to travel along a groove provided at a lower portion of a storage silo; a scrape-out unit configured to move integrally with the travel body and including a blade configured to rotate above the groove to rake coals in the storage silo and scrape out the coals to the groove; and a groove closing mechanism configured to close a predetermined region of the groove within a rotation trajectory region of the blade. The discharge device is configured to be able to suppress the change in the discharge amount of coals discharged by the blade from the particle/bulk material storage silo.
摘要:
A novel carboxylic acid compound having a condensed ring; which is represented by the formula (I) ##STR1## wherein each symbol is as defined in the specification, a pharmacologically acceptable salt thereof, a pharmaceutical composition thereof and pharmaceutical use thereof. The novel carboxylic acid compound having a condensed ring and pharmacologically acceptable salt thereof of the present invention have superior GPIIb/IIIa antagonism in mammals inclusive of human; can be administered orally; have long life in blood and low toxicity; and show less side-effects. Accordingly, they are extremely useful for the prophylaxis and treatment of thrombotic diseases and other diseases.
摘要:
A compound of the following formula ##STR1## wherein m is an integer of 1 to 3, R.sub.1 and R.sub.2 are the same or different and each is hydrogen atom or lower alkyl, and R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are the same or different and each is hydroxy or a group of the formula ##STR2## (wherein n is 0 or 1, X is --NH-- or --O--, Y is alkylene, A is hydrogen atom, lower alkyl, lower alkoxy, halogen atom or trifluoromethyl, and B is alkyl or alkenyl), with the proviso that two or three of R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are hydroxyl groups and that when two of them are hydroxyl groups, the cases where R.sub.3 and R.sub.5 are hydroxy, and R.sub.4 and R.sub.6 are hydroxy are excluded; a complex compound comprising said compound and a metallic atom; and a diagnostic agent containing said complex compound. The above compound is useful as a chelating agent and the complex compound comprising said compound and a metallic atom exhibits superior characteristics as a contrast medium for image diagnosis.
摘要:
A pullulan derivative having one or more active sites resulting from introduction of sulfuric acid, phosphoric acid, a sulfonic acid or a carboxylic acid, wherein one hydrogen atom of the group of the formula ##STR1## occurring at said active sites is partly substituted by a group of the general formula ##STR2## wherein L.sup.1 and L.sup.2 each independently is ammine or a unidentate ligand amine or combinedly represent a bidentate ligand amine and Y is an anionic ligand, and/or two hydrogen atoms of the group ##STR3## or of two ##STR4## groups bound to one and the same carbon atom or to two neighboring carbon atoms as occurring at said active sites are, each independently, partly substituted by a group of the general formula ##STR5## wherein L.sup.1 and L.sup.2 are as defined above, and a pharmacologically acceptable salt thereof.The above compound has anticancer activity and is useful as anticancer agents.The present invention is concerned with said compound, a process for producing the same and a pharmaceutical use thereof.