摘要:
A process for producing a cyclopentadiene resin by heat copolymerizing a cyclopentadiene monomer and a comonomer copolymerizable therewith, which comprises(a) using a vinyl monomer containing an ester linkage or a hydroxyl group as the comonomer, and(2) feeding the polymerizable ingredients and optionally an inert solvent from a material-preparing zone to a polymerization zone to polymerize the polymerizable ingredients, feeding the polymer solution formed in the polymerization zone into a separating zone to separate a low-boiling mixture consisting of the unreacted monomers, a by-product oil and optionally the inert solvent from the resulting cyclopentadiene resin, and recycling at least a part of the separated low-boiling mixture to the material-preparing zone for use as a polymerizable ingredient.
摘要:
An epoxy resin composition comprising (a) a cyclopentadiene-type hydrocarbon resin having a hydroxyl value of 100 to 300 obtained by copolymerizing a cyclopentadiene-type monomer and a hydroxyl-containing monolefinic monomer at elevated temperatures, (b) a polyol selected from the group consisting of epoxy resins containing at least two hydroxyl groups in the molecule and epoxy resin derivatives containing at least two hydroxyl groups in the molecule and obtained by the reaction of epoxy resins with alkanolamines, and (c) an isocyanate-type curing agent. The compositions have improved low temperature curability, acid resistance and water resistance while retaining the various desirable properties of epoxy resins such as chemical resistance and oil resistance, and which when used as paints, exhibit improved adhesion to an adherend and improved re-coating adhesion to the film formed thereon.
摘要:
In a thermosetting coating composition comprising at least one thermosetting resin selected from aminoalkyd resins and aminoacrylic resins as a main ingredient of a vehicle, the improvement wherein the composition contains 100 parts by weight of the thermosetting resin and 5 to 50 parts by weight of a cyclopentadiene-derived hydrocarbon resin having a softening point of 50.degree. to 160.degree. C. and obtained by heat polymerizing a mixture of 85 to 55% by weight of a cyclopentadiene-type monomer with 15 to 45% by weight of a polar monolefinic monomer copolymerizable therewith.The compositions have improved flexibility, impact strength and adhesion and are useful as vehicles for thermosetting oil-base paints.
摘要:
An information processing apparatus includes a selector for selecting removal information concerning contents to be removed, the removal information prepared on a per content basis for the contents to be removed and including a value uniquely determined from data within a data range of whole or part of a content to be removed, a first range that is the data range, and a second range that is a removal range represented by the position of the first range, a detector for detecting a range at a predetermined position within the whole content, having the same range as the first range contained in the removal information selected by the selector and the same value as the value uniquely determined and contained in the removal information, and a remover for removing a predetermined content based on the second range contained in the removal information selected by the selector if the detector detects the range at the predetermined position.
摘要:
A cephem compound represent by the general formula ##STR1## wherein, R.sup.1 represents hydrogen or lower alkyl, R.sup.2 and R.sup.3 are the same or different and each represents hydrogen or lower alkyl, R.sup.4 represents carboxyl or esterified carboxyl, and n represents 0 or 1, a salt of the cephem compound, and a process for producing the cephem compound or a salt thereof. Compounds of the above formula and salts thereof are valuable as antibacterial agents and are especially useful as oral drugs in the prevention or treatment of bacterial infectious diseases.
摘要:
An improvement is provided in and relating to a capacitance-type record medium wherein an information signal is recorded as a variation in the geometrical shape of its surface area, and is played back by the variation of the capacitance between its surface and an electrode of a reproducing stylus scanning the surface of the record medium relatively which occurs according to a variation in the geometrical shape of its surface area. The improvement consists in the fact that at least the surface area of the record medium is formed of (1) a material composed of an electrically conductive substance and a copolymer consisting of 98 to 65% by weight of vinyl chloride, 2 to 20% by weight of an alkyl vinyl ether with the alkyl group having 4 to 18 carbon atoms and/or a vinyl ester of a fatty acid in which the fatty acid residue has 4 to 18 carbon atoms and 0 to 15% by weight of another monomer copolymerizable with these compounds, or (2) a material composed of an electrically conductive substance and a polymer mixture consisting of at least two polymers in which the proportions of the constituent monomers are the same as in the aforesaid copolymer.
摘要:
A platelet aggregation inhibitor comprising a quinolone derivative or a pharmaceutically acceptable salt thereof as an active ingredient, and a novel quinolone derivative or a pharmaceutically acceptable salt thereof useful as a platelet aggregation inhibitor.
摘要:
Switching of topics in video content is detected using a telop included in the image, and the content is segmented by topics.First a scene-change point where the scene changes significantly is detected in the video content on the basis of the switching of images. Then, an average image of frames one second before and after the scene-change point is produced. The average image is used to detect, in a highly accurate manner, whether or not a telop is displayed. Then, a section in which the same stationary telop is displayed is detected. Index information related to the time period of each section in which the same stationary telop is displayed is produced.
摘要:
2-Acylaminothiazole derivatives or salts thereof which have a platelet increasing activity based on an excellent human c-mpl-Ba/F3 cell growth function and a function of accelerating formation of megakaryocytic colonies and which are useful for treating thrombocytopenia are provided.
摘要:
A compound of the formula: ##STR1## wherein Ar is a phenyl group substituted with halogen, C.sub.1 -C.sub.8 alkyl, C.sub.1 -C.sub.8 alkoxy, C.sub.1 -C.sub.8 alkylthio, C.sub.1 -C.sub.8 alkylsulfonyl, nitro, trihalomethyl, cyano, C.sub.1 -C.sub.8 alkylamino, di(C.sub.1 -C.sub.8)-alkylamino, amino, hydroxyl, phenyl and/or phenoxy, a naphthyl group or a thienyl group optionally substituted with halogen, which is useful as an antifungal agent.