Claims/Chem

M. Tabata, K. Nakagawa, A. Konagai, and H. Fukui. Mitsui Petrochemical Industries. Jpn. Kokai Tokkyo Koho JP 60/227690 A2 [85/227690], 12-11-1985. Production of berberine with Thalictrum minus plant cell cultures, yields of 0.8g/liter claimed. Chem. Abstr. 104, 128223h. 

CLAIMS/CHEM IFI/Plenum Data Co. Chemical patents LIS... 

Provides access to chemical and chemically related patents. Subject indexing for each chemical patent from a controlled vocabulary designed to facilitate retrieval of chemical structures and polymers. Indexing is prepared from a review of the full text of patent documents 20 or more Uniterm codes are then added to each record. CLAIMS/UNITERM 1950-1970, File 223, parallels coverage of File 23, CLAIMS/CHEM 1950-1970 CLAIMS/UNITERM 1971-1977, File 224, parallels File 24, CLAIMS/U.S. PATENTS 1971-1977 and CLAIMS/ UNITERM 1978 to present. File 225, parallels File 25, CLAIMS/U.S. PATENT ABSTRACTS. 

Vitamin C clinicians did not refute Pauling s claims. Chem. Brit. 21 (1985) 535. 

From a survey of early 1982, prices of a number of widely used types of process filter were collated by Hall and coworkers [Chem. Eng., 89(7), 80 (1982)]. These data are drawn together in Fig. 18-137, updated to 1995 prices. They have a claimed accuracy of 10 percent, but they should be used confidently only with study-level cost estimations ( 25 percent) at best. Cost of deliveiy to the plant can be approximated as 3 percent of the FOB price [Pikulik anciDiaz, Chem. Eng., 84(21), 106(1977)]. 

Both the equilibria and the enhancement of the coefficients can be improved by additives, of which sodium arsenite is the major one in use, but sodium hypochlorite and small amounts of amines also are effective. Sterically hindered amines as promoters are claimed by Say et al. (Chem. Eng. Prog., 80(10), 72-77 [1984]) to result in 50 percent more capacity than ordinary amine promoters of carbonate solutions. 

Acetone and ammonia are condensed in the presence of various promoters. A 45 per cent yield of diacetonamine isolated as the hydrogen oxalate is claimed when acetone saturated with ammonia at o" is allowed to stand twenty-four hours with 8.5 per cent of ammonium nitrate. Suzuki and Horie, Bull. Inst. Phys.-Chem. Research (Tokyo) ii, 383 (1932). Abstract 30 (in English) published with Sci. Papers Inst. Phys.-Chem. Research (Tokyo) 18, Nos. 350-4 [C. A. 26, 4302 (1932)]. 

Parkes Absorbent for Nitroglycerin. Materials patented in 1898 by Parkes, manufd by Chem-ische Fabrik at Winkel-on-Rhine, Ger, for use in Dynamites as absorbents for NG in lieu of the previously used kieselguhr. The absorbents were rubber-llke materials, prepd by the action of sulfur chloride, S2C12, on vegetable oils. It was claimed at the time that Dynamites prepd with Parkes absorbent were so insensitive, they could be used for loading shells... 

Oren, Z. et al., Israeli PatentIL 89641, 1995 Chem. Abs., 1996, 124, 260401g It is claimed that a prior method of manufacture from acetonitrile, methanethiol and hydroxylamine hydrochloride gave uncontrolled reaction and explosion. A safer preparation starting from acetaldoxime is claimed. 

This is the structure assigned by Chem. Abs. to the claimed benzotriazolium nitroimidate below. The editor suspects they are right and that the nitroamine... 

A compound with tetrafluoroboric acid, previously claimed to be a useful safe oxidant, proved not to be on preparation at 0.5 molar scale. It exploded spontaneously while drying in vacuo at room temperature. Chem. Abs. (112 98095p) identifies it with this title compound, which was claimed to be too unstable to explode by the original users. It seems more likely that the explosive was the anhydride , oxybisphenyliodonium tetrafluoroborate. Several related compounds have also proved to be explosive. 

DR. JACK NORTON (Colorado State University) One interesting result that has just appeared is Ray Sweany s report of photochemical hydrogen loss from iron tetracarbonyl dihydride [Sweany, R. L. J. Am. Chem. Soc. 1981, 103, 2410]. This system is very close to the case in which I claimed some years ago that this process did not occur. First of all, do you have any possible explanations for the differing behavior Why is Sweany s result different from the result of Tony Rest Second, if hydrogen eliminates in a concerted process such as you have just described, why don t other species such as cis-methyl groups do likewise ... 

Pt-KBaL catalyst than over conventional reforming catalysts. However, the advantage diminishes as carbon number increases, so these technologies are primarily of interest for benzene production. It is therefore more efficient to complement conventional reforming with the zeolitic reforming process when a broader range of aromatic products is desired. Relatively large crystal size has been claimed to be beneficial for example in CP Chem s AROMAX process. Residual acidity on the catalyst has been shown to be detrimental [86]. 

Diels, O. Alder, K. Justus Liebigs Arm. Chem. 1928, 460, 98. Otto Diels (Germany, 1876-1954) and his stndent, Kurt Alder (Germany, 1902—1958), shared the Nobel Prize in Chemistry in 1950 for development of the diene synthesis. In this article they claimed their territory in applying the Diels-Alder reaction in total synthesis We explicitly reserve for ourselves the application of the reaction developed by us to the solution of such problems. ... 

The computer, going through a multidimensional search [see problem 3, Chem. Eng. Set, 45, 595-614 (1990)] came up with the arrangement of Fig. P10.6, which the authors claim is a LOCAL optimum, or a STATIONARY POINT. We are not interested in LOCAL optima, if such things exist. We are interested in finding the GLOBAL optimum. So with this in mind,... 

S. Mine, J. Jastrzebska, Rocz. Chem. 1954, 28, 519-520. In reporting the E20 value for copper in various methanol-water mixtures, these authors did not specify whether percent methanol referred to weight, volume, or mole per cent. Although the potential values are claimed to be referenced to aqueous SHE, the actual internal reference electrode used was not specified and no mention was made of a correction for the liquid junction potential. Since the actual liquid junction potential for aqueous reference electrodes in methanol-water mixtures was not made until a later date [ j —0.152 V for 80% methanol (w/w) M. Alfenaar, C. L. deLigny, Reel. Trav. Chim. Pays-Bas... 

H.H. Hodgson, Chem Ind 1945, 362 described explosive reactions of diazonium c ompd with sulfides of sodium. He claimed that he prepd as early as 1918 a brilliant red solid which exploded violently on rubbing with a glass rod, when he treated diaxotized o-nitro-anillne with N disulfide. He also listed several later refs in which expl reactions betn diazotized compd and sulfides were reported. Some of these expl products were known in USA as... 

In a similar vein, patents by both Dainippon Ink Chem. KK [130] and Daikin Kogyo KK [131] claim the addition of dimethylsulphoxide to the electrolyte prevents adhesion of polymeric tar to the anode, lowers the rise in cell voltage, and assists long term fluorination of -octanecarbonyl fluoride. 

Many women who have received silicone-fluid-filled breast implants have claimed to suffer from implant-related diseases, apparently caused by small leakages of the fluid into the body tissue. Successful lawsuits on those grounds in the United States have driven Dow Corning, the principal manufacturer of the implants, to file for bankruptcy protection. Food and Drug Administration Commissioner David A. Kessler, however, has reported to a congressional subcommittee that, as of July, 1995, there was no scientific evidence that silicone implants are a significant cause of disease. See M. S. Reisch and R. L. Rawls, Silicone gel breast implants. Chem. Eng. News, December 11, 10-17 (1995). 

A report in Pure Appl. Chem., 78, 889-904 (2006) claims the detection of elements 116 and 118. 

Examples of uncharged homoanftaromatic compounds have been claimed Wilcox Blain Clardy Van Duync Gleiter Eckert-Maksic J. Am. Chem. Soc. 1986, 108, 7693 Scott Cooney Rogers Dejroongruang J. Am. Chem. Soc. 1988, 110, 7244. 

It was claimed that silver fulminate, formed as a product of the reaction was the cause of these explosions) 7)J.Eggert,ZElektro-chem 27,547-58(1921) CA 16,1013(1922) (Investigation of sensitiveness of some expls, among them AgaO 2NHS and NH, NI,)... 

It is claimed that both chem analyses and thermochemical measurements point to the view that the presence of w strongly favors the soot reactions 2CO = C02 + C and CO + H2 = H20 + C because of increase in pressure in the system under study. Both these reactions are highly exothermic... 

In a later paper (Ref 87) these authors examined the electrical conductivity of the products of pressed cylindrical charges of RDX. They claim that such deton products will be conductive under the existing high pressure environment regardless of whether there is chem reaction. Ershov and coworkers (Refs 83 and 69), on the other hand, claim that the chem reaction zone in a deton can be correlated with the non-equilibrium ionization observed in deton products. They find (Ref 69) that the electrical conductivity of the deton products of RDX goes thru a max of 43 (ohm-m)"1 at 0.3mm behind the deton front. They advance three possible explanations for this observation (1) high d ... 

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