摘要:
A photocurable resin composition comprising (a) 100 parts by weight of a modified resin prepared by reacting an .alpha.,.beta.-unsaturated dicarboxylic acid anhydride adduct having a softening point ranging from 70.degree. to 200.degree. C. and derived from a conjugated diene polymer or copolymer having a number average molecular weight of 500 to 5000 and a vinyl group content of 50 mole % or above, with an .alpha.,.beta.-unsaturated monocarboxylic acid ester having a specific alcoholic hydroxy group to open at least 10 mole % of the acid anhydride rings present in the adduct, (b) inorganic or organic powder having an average particle diameter of not larger than 5 .mu.m or inorganic powder grafted with a hydrocarbon residue, and (c) a photopolymerization initiator.
摘要:
A process for the preparation of a photocurable resin which comprises the steps of(I) (a) imidating 20 to 80 mole % of the acid arthydride groups present in an adduct prepared by the addition reaction of an .alpha.,.beta.-unsaturated dicarboxylic acid arthydride to a conjugated diene polymer or copolymer with a primary amine to produce water and an amide,(b) reacting the thus formed water as a by-product with at least a part of the remaining acid arthydride groups in said adduct to produce the succinic acid groups by opening the ring of said acid arthydride groups,(II) dehydrating the thus produced succinic acid groups by heating to cause ring closure again thereby forming acid anhydride groups and(III) reacting at least a part, preferably at least 50 mole %, of the acid anhydride rings present in the polymer with an .alpha.,.beta.-unsaturated monocarboxylic acid ester having an alcoholic hydroxyl group to conduct a half-esterification by opening the ring of said acid arthydride groups.
摘要:
A silica-based material comprising: silicon; aluminum; at least one fourth period element selected from the group consisting of iron, cobalt, nickel and zinc; and at least one basic element selected from the group consisting of alkali metal elements, alkali earth metal elements and rare earth elements, wherein the silica-based material comprises 42 to 90 mol % of the silicon, 3 to 38 mol % of the aluminum, 0.5 to 20 mol % of the fourth period element and 2 to 38 mol % of the basic element, based on a total mole of the silicon, the aluminum, the fourth period element and the basic element.
摘要:
Disclosed is a catalyst for use in production of carboxylic acid ester by reacting (a) aldehyde and alcohol, or (b) one or more types of alcohols, in the presence of oxygen; wherein oxidized nickel and X (wherein X represents at least one element selected from the group consisting of nickel, palladium, platinum, ruthenium, gold, silver and copper) are loaded onto a support within the range of the atomic ratio of Ni/(Ni+X) of from 0.20 to 0.99.
摘要:
One embodiment provides an electronic apparatus, including: a connection module configured to be detachably connected with an external device; a display module configured to display an image; and a display controller configured to control display of the display unit so that a larger image is displayed when the connection module is connected to the external device than when the connection module is not connected to the external device.
摘要:
Disclosed is a catalyst for use in production of carboxylic acid ester by reacting (a) aldehyde and alcohol, or (b) one or more types of alcohols, in the presence of oxygen; wherein oxidized nickel and X (wherein X represents at least one element selected from the group consisting of nickel, palladium, platinum, ruthenium, gold, silver and copper) are loaded onto a support within the range of the atomic ratio of Ni/(Ni+X) of from 0.20 to 0.99.
摘要:
The present invention can easily determine a specification which includes a PTO clutch mechanism or a specification which includes no PTO clutch mechanism. According to the present invention, in a tractor which detachably mounts a PTO portion on a transmission portion, a PTO clutch mechanism is arranged in the inside of the PTO portion. Accordingly, it is possible to easily determine the specification which includes the PTO clutch mechanism or the specification which includes no PTO clutch mechanism depending on whether the PTO clutch mechanism is preliminarily assembled in the PTO portion or not in a stage that the PTO portion is assembled and, at the same time, it is possible to easily complete the assembling by merely mounting the PTO portion on the transmission portion. Further, by taking steps opposite to the above-mentioned steps, it is possible to easily perform the maintenance of the PTO clutch mechanism or the like.
摘要:
An object of the present invention is to provide, for the production of isobutene, a high-yielding, highly-selective, and long-term stable production process of isobutene from TBA. With respect to the production of TBA, an object of the present invention is to provide a TBA production process in which, through long-term stable maintenance of a high reaction activity, long-term continuous operation is enabled and the productivity is improved. The present invention discloses a process for producing isobutene that employs a dehydration temperature of from 200 to 450° C. in use of an alumina catalyst that contains a Na content of 0.6% by weight or less in terms of NaO2 and a Na content of 0.4% by weight in terms of NaO2, and has a specific surface area of from 200 to 600 m2/g.
摘要:
The present invention aims at making a transmission casing compact. In the present invention, in the inside of a transmission casing, a traveling-system power transmission mechanism which is interposed between an engine and an axel, a PTO-system power transmission mechanism which is interposed between the engine and a PTO shaft, and a changeover mechanism which is interposed between both power transmission mechanisms are provided, wherein the power transmission of the PTO-system power transmission mechanism is interrupted at a middle portion thereof by the changeover mechanism and, at the same time, the changeover mechanism is allowed to perform a changeover manipulation to connect a downstream side portion of the PTO-system power transmission mechanism and a downstream side portion of the traveling-system power transmission mechanism. In this manner, it is possible to transmit the rotational speed proportional to the rotational speed of the engine to the PTO-shaft (first PTO-system power transmission) with the use of the PTO-system power transmission mechanism, while with the use of the changeover mechanism, it is possible to perform the changeover manipulation which interrupts the power transmission of the PTO-system power transmission mechanism in the middle portion thereof and, at the same time, connects the downstream-side portion of the PTO-system power transmission mechanism and the downstream-side portion of the traveling-system power transmission mechanism so as to transmit the rotational speed proportional to a vehicle speed to the PTO shaft (second PTO-system power transmission).
摘要:
An object of the present invention is to provide an adhesive resin composition which displays excellent adhesive strength on bonding to a barrier material, during initial adhesion, durable adhesion, and even after soak in fuel oil, and which also has excellent moldability. Furthermore, another object of the present is to provide an adhesive resin composition which when recycled, displays good compatible in a regrind layer with polyethylene resins and barrier materials such as saponified products of ethylene-vinyl acetate copolymers or polyamide based resins, and which is consequently capable of suppressing deterioration in the low temperature impact resistance of a multi-layer vessel containing a regrind layer. In order to achieve these objects, the present invention provides an adhesive resin composition (C) comprising (A) 100 to 5% by mass of a modified polyethylene in which an unsaturated carboxylic acid and/or an unsaturated carboxylic acid derivative unit is grafted to a high molecular weight polyethylene with a melt flow rate (MFR: temperature 190° C., loading 2.16 kg) of 0.1 to 2.0 g/10 minutes, and a density of 0.91 to 0.96 g/cm3, and (B) 0 to 95% by mass of an unmodified polyethylene with a melt flow rate (MFR: temperature 190° C., loading 2.16 kg) of 0.1 to 20 g/10 minutes, and a density of 0.86 to 0.96 g/cm3, wherein the density of the adhesive resin composition (C) is 0.925 to 0.940 g/cm3, the content of the unsaturated carboxylic acid and/or unsaturated carboxylic acid derivative unit incorporated therein is at least 0.09% by mass, and the melt flow rate (MFR: temperature 190° C., loading 2.16 kg) is from 0.1 to 2 g/10 minutes.
摘要翻译:本发明的目的是提供一种粘合剂树脂组合物,其在初始粘合,耐久粘合性以及甚至在燃料油中浸泡之后,在与阻挡材料接合时显示优异的粘合强度,并且还具有优异的成型性。 此外,本发明的另一个目的是提供一种粘合剂树脂组合物,其在再循环时与聚乙烯树脂和阻隔材料如乙烯 - 乙酸乙烯酯共聚物或聚酰胺基树脂的皂化产物在回粉层中显示出良好的相容性,因此 能够抑制含有再研磨层的多层容器的耐低温冲击性的劣化。 为了实现这些目的,本发明提供一种粘合剂树脂组合物(C),其包含(A)100-5质量%的将不饱和羧酸和/或不饱和羧酸衍生物单元接枝到其中的改性聚乙烯 熔体流动速率(MFR:温度190℃,负载2.16kg)的高分子量聚乙烯为0.1〜2.0g / 10分钟,密度为0.91〜0.96g / cm 3 ,(B)0〜95质量%的熔体流动速率(MFR:190℃,负载2.16kg)的未改性聚乙烯为0.1〜20g / 10分钟,密度为0.86〜0.96g / cm 3,其中粘合性树脂组合物(C)的密度为0.925〜0.940g / cm 3,不饱和羧酸和/或不饱和羧酸的含量 其中结合的酸衍生物单元为至少0.09质量%,熔体流动速率(MFR:温度190℃,负荷2.16kg)为0.1〜2g / 10分钟。