摘要:
A metallic salt of a fatty acid having the following formula is an excellent stabilizer for vinyl chloride resin: ##STR1## wherein two of R.sub.1, R.sub.2 and R.sub.3 are alkyls respectively while the remaining one is alkyl or hydrogen, and the total number of carbon atoms of R.sub.1, R.sub.2 and R.sub.3 is from 18 to 26.
摘要:
Complex esters of the present invention are manufactured by making C.sub.3.sub.-30 olefin, carbon monoxide, polyalcohol and polycarboxylic acid react in the presence of a cobalt compound catalyst.
摘要:
A process for the carboxylation and/or alkoxycarbonylation of olefins with carbon monoxide and water or alcohol in the presence of cobalt carbonyl catalyst and also vinyl pyridine together with pyridine and/or alkyl pyridine, is disclosed.
摘要:
A non-liquid detergent composition prepared by shaping a detergent composition comprising an acyl-poly-hydroxy carboxylate having the formula ##STR1## (wherein R represents a saturated or unsaturated straight-chain or branched-chain hydrocarbon group having 5 to 19 carbon atoms, R' represents H, CH.sub.3 or C.sub.2 H.sub.5, n is an integer of 1 or more, m is an integer ranging from 1 to 2, and M represents monovalent or divalent cation).
摘要翻译:通过使包含具有下式的酰基 - 多羟基羧酸盐的洗涤剂组合物(其中R表示具有5至19个碳原子的饱和或不饱和直链或支链烃基)的组合物制备的非液体洗涤剂组合物, R'表示H,CH 3或C 2 H 5,n为1以上的整数,m为1〜2的整数,M为1价或2价的阳离子)。
摘要:
Disclosed are a radiation image conversion panel which has achieved a radiation image with enhanced sharpness and improved moisture resistance and shock resistance, and a production method thereof. The radiation image conversion panel comprises, on a support, a phosphor layer comprising phosphor columnar crystals, each composed mainly of cesium iodide (CsI) and formed by a process of gas phase deposition, wherein a coefficient of variation of crystal diameter of the phosphor columnar crystals is not more than 50% and a coefficient of variation of phosphor filling factor of the phosphor layer is not more than 20%.
摘要:
A halogen-containing resin composition comprising a halogen-containing resin having incorporated therein one or more esters derived from one or more fatty acids and one or more polyhydric alcohols containing from 2 to 6 carbon atoms, said fatty acids being expressed by the general formula ##STR1## where at least two of the R.sub.1, R.sub.2 and R.sub.3 radicals are alkyl radicals and, when two of them are alkyl radicals, the remaining one is hydrogen; and the total number of carbon atoms contained in the R.sub.1, R.sub.2 and R.sub.3 radicals is in the range of from 18 to 38. The foregoing composition is excellent in lubricity and heat stability, thus causing no occurrence of "plate-out" or "blooming."
摘要:
In the method of manufacturing liquid polyol esters of carboxylic acid by making an olefin having 3 or more carbon atoms, carbon monoxide and polyhydric alcohol react with one another in the presence of a cobalt compound catalyst, the steps comprising heating the thus reacted mixture to distill out unreacted olefin and so forth, thereafter cooling the distillation residue and separating it into the ester of polyhydric alcohol and the cobalt compound.
摘要:
Provided are a scintillator panel and a radiation detector which give a radiation image reduced in sensitivity unevenness and sharpness unevenness. Also provided are processes for producing the scintillator and the detector. The scintillator panel comprises a support and, deposited thereon, a phosphor layer comprising columnar crystals of a phosphor which have been formed by the vapor deposition method. The panel is characterized in that the columnar crystals of a phosphor comprise cesium iodide (CsI) as a base ingredient and thallium (Tl) as an activator ingredient and have, in a root part thereof, a layer containing no thallium, and that the coefficient of variation in thallium concentration in the plane of the phosphor layer is 40% or less.
摘要:
A method of preparing a polyolefin oil in the present invention comprises polymerizing an olefin having 6 or more carbon atoms in the presence of a mixture of a polyhydric alcohol derivative and an aluminum halide, said derivative being obtained by replacing hydrogen atoms of all the hydroxyl groups of the polyhydric alcohol by alkyl groups having 1-20 carbon atoms. The thus prepared polyolefin oil scarcely contains halogen, and it has a wide range of use such as, for instance, a lubricant, a cosmetic base, a textile finishing agent, etc.
摘要:
A method of preparing an olefin oligomer by polymerizing an olefin having more than 6 carbon atoms, wherein said olefin is to be polymerized in the presence of a catalyst consisting of (a) polyhydric alcohol derivatives obtained by substituting hydrogen atoms of all the whole hydroxyl groups of polyhydric alcohol by either acyl group exclusively or acyl group and alkyl groups, both said acyl group and alkyl group having 1 - 20 carbon atoms, (b) aluminum halide in an amount of 0.7 - 1.0 mole per each ester bond and ether bond possessed by said polyhydric alcohol derivative and (c) metallic aluminum powder.