摘要:
A method of manufacturing a link plate for a roller chain, and the resulting link plate in which (1) the link plate has a shape comprising a pair of right and left pin holes, a pair of right and left half arcs, which are spaced outwardly from the pin holes respectively, and a pair of upper and lower straight line portions connecting both ends of the pair of right and left half arcs. There are shaved lengths along the pair of upper and lower straight line portions extending into the half arcs, the shaved length extending between the outermost positions of both ends of said pin holes.
摘要:
A method of manufacturing a link plate for a roller chain, and the resulting link plate in which (1) the link plate has a shape comprising a pair of right and left pin holes, a pair of right and left half arcs, which are spaced outwardly from the pin holes respectively, and a pair of upper and lower straight line portions connecting both ends of the pair of right and left half arcs. There are shaved lengths along the pair of upper and lower straight line portions extending into the half arcs, the shaved length extending between the outermost positions of both ends of said pin holes.
摘要:
The present invention relates to (1) a moisture retention polymer compound comprising a structural unit including a multi-branched polysaccharide derivative in which the hydroxyl group (OH) may be substituted by OR wherein R represents a hydrogen atom, a hydrocarbon having 1 to 30 carbon atoms, or a hydrocarbon having 1 to 30 carbon atoms and a hetero atom, and a structural unit without a multi-branched polysaccharide derivative, (2) an external preparation for skin comprising 0.1 to 99.9% by mass of the polymer compound, which can provide moist feeling to the skin and exhibit an appropriate viscosity and solubility, and (3) a cosmetic product comprising the external preparation for skin.
摘要:
In a movable guide for transmission device in which a guide body is formed from a synthetic resin and comprises a chain-contacting shoe and a plate-receiving portion formed as a unit with the shoe on the back side thereof, the plate-receiving portion has plural, longitudinally extending slots, each receiving a reinforcing plate. The plural reinforcing plates improve the bending rigidity, toughness, strength and wear properties of the guide, prevent falling down of the guide and guide torsion, ensure stable travel of the chain, and prevent running of the chain off the guide in a widthwise direction. Improved compactness of the guide and of the overall mechanism, is made possible by the use of plural plates. The plates can be connected to one another by a tensioner-contacting portion, formed as a unit with the plates.
摘要:
Provided is a water-based lubricant comprising a hyperbranch-type polyglycerol having an absolute molecular weight of from 5,000 to 500,000. The water-based lubricant has a small friction coefficient and is excellent in lubrication performance and defoamability, as compared with conventional water-based lubricants comprising an ethylene/propylene oxide copolymer, and is favorable, for example, for a water-based metal processing agent and a hydraulic pressure fluid.
摘要:
The hyperbranched polymers are at least one anhydrosugar-related compound selected from the dianhydrosugar alcohol [1]: (wherein R is hydrogen atom or a hydrocarbon group having from 1 to 30 carbon atoms, provided that nR's are equal to or different from one another and at least one R of nR's is hydrogen atom, and symbol n is an integer from 1 to 10) and the anhydrosugar alcohol [2]: (wherein each of R1, R2, R3 and R4 is hydrogen atom or a hydrocarbon group having from 1 to 30 carbon atoms; provided that R1, mR2's, pR3's and R4 are equal to or different from one another and at least one R2 or R3 of said mR2's and pR3's is hydrogen atom, respectively; and symbol m is zero (0) or an integer from 1 to 20 and symbol p is an integer from 1 to 20, provided that symbol m+p is an integer from 1 to 20)or at least one anhydrosugar-related compound selected from the dianhydrosugar alcohol [1] and/or the anhydrosugar alcohol [2] with at least one sugar compound selected from the anhydrosugar as represented by the general formula [3], [4], [5], [6] or [7].The hyperbranched polymers are readily prepared by polymerizing the dianhydrosugar alcohol or the anhydrosugar [1] or [2] or the dianhydrosugar alcohol or the anhydrosugar [1] or [2] together with the anhydrosugar in the presence of a cationic or anionic initiator.
摘要:
A tensioner lever for an engine timing chain comprises a synthetic resin lever body including a shoe having a chain-contacting sliding surface, and a spring-receiving portion on the back of a shoe. A laminated sheet spring is fitted into a slot formed in the spring-receiving portion along the longitudinal direction of the lever. The synthetic resin lever body is pivoted on a pivot shaft mounted on an engine, and an end of the laminated sheet spring is locked into a groove in the pivot shaft so that the spring can be stressed and thereby exert a tensioning force on the chain through the tensioner lever.
摘要:
Provided is a water-based lubricant comprising a hyperbranch-type polyglycerol having an absolute molecular weight of from 5,000 to 500,000. The water-based lubricant has a small friction coefficient and is excellent in lubrication performance and defoamability, as compared with conventional water-based lubricants comprising an ethylene/propylene oxide copolymer, and is favorable, for example, for a water-based metal processing agent and a hydraulic pressure fluid.
摘要:
A thin-film conductor is made of (Sr.sub.1-y Ca.sub.y).sub.1-x CuO.sub.z, wherein 0.ltoreq.x.ltoreq.0.1 and 0.ltoreq.y.ltoreq.0.5, and z is approximately equal to or smaller than 2. In a method of fabricating the thin-film conductor, it is preferably to heat a substrate. A first atomic layer of metal including Sr or including Sr and Ca is formed on the heated substrate. A second atomic layer of oxide containing Cu is formed on the first atomic layer. A first atomic layer of metal including Sr or including Sr and Ca is formed on the second atomic layer. These steps are repeated to form a lamination of an alternation of the first atomic layers and the second atomic layers on the substrate.
摘要:
The present invention provides an external preparation for skin, which comprises a multi-branched polysaccharide derivative with multi-branched polysaccharide skeleton consisting of saccharides as constituent units, wherein at least one of hydroxyl (OH) groups in the multi-branched polysaccharide skeleton is substituted by OR (wherein R represents a hydrogen atom, a hydrocarbon having 1 to 30 carbon groups or a hydrocarbon having 1 to 30 carbon groups which has hetero atom), which can give moisture and turgor to the skin, and cosmetics containing the external preparation.