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    • 33. 发明专利
    • Apparatus for Recording Co-related Light and Sound Variations.
    • GB107167A
    • 1917-06-21
    • GB5217
    • 1917-01-02
    • VANSIZE WILLIAM BALDWIN
    • VANSIZE WILLIAM BALDWIN
    • G03B31/00
    • 107,167. Vansize, W. B. Jan. 2, 1917. Multiple machines; magnetic machines. - In synchronously recording correlated light and sound variations, as in the joint production of moving-picture films and phonograph records, the sounds are transmitted to the recording apparatus by wireless telephony. Each performer 15, 16 carries transmitting apparatus shown in Fig. 2, comprising a three-electrode vacuum valve 26, a battery 35 serving to energize the hot element 27, a battery 33 in circuit with an inductance 31 connected to the electrodes 27, 28, and a battery 34 in circuit with an adjustable inductance 30 connected to the electrode 27 and the grid or equivalent electrode 29. The battery 33 is of high voltage and may consist of diminutive cells of Plante or Faure type. An antenna 18, in circuit with an inductance 32 and microphone 20, is earthed through contacts 23, 24 contacting with a conducting stage 17, earthed at 25. The antenna 40 of the receiving apparatus, preferably located from one-quarter to one-half of a wavelength from the transmitter, is in circuit with a condenser 41 and inductance 42, both adjustable. Inductance 42 serves as the primary of an oscillation transformer, the secondary 44 of which is in circuit with a battery 45 and connected to the hot electrode 56 and grid 53 of a vacuum valve. The element 56 is adjustably heated by a battery 46 shunted through a variable resistance 48. A battery 50 connected to electrodes 49, 56 is in circuit with an electro-magnet 11 which serves to record on a travelling tape or wire 10 of steel, driven at the same speed as the photographic film, or at any desired speed ratio. In reproducing the recorded sounds by the Poulsen telegraphone method, loud-speaking telephones are suspended from the ceiling in the auditorium. Amplifying valves are preferably employed, and three such valves may be connected in cascade in known manner.
    • 35. 发明专利
    • New organic nitrogen compounds and their application
    • GB538846A
    • 1941-08-19
    • GB300140
    • 1940-02-16
    • ALFRED WILLIAM BALDWINDONALD HEYMAURICE ARTHUR THOROLD ROGERSICI LTD
    • C07C271/20D06M13/425D06M13/46
    • 538,846. Quaternary ammonium compounds waterproofing and softening textiles. BALDWIN, A. W., HEY, D., ROGERS, M. A. T., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Feb. 16, 1940, No. 3001. Addition to 517,632. [Classes 2 (iii) and 15 (ii)] [Also in Group VIII] The halogenomethyl compounds used for reacting with aliphatic or heterocyclic amines for the production of the quaternary ammonium compounds described in the parent Specification are made by interacting a methylol compound of a carbamate of the formula RO-CO-NH 2 (R = an aliphatic radicle of at least 7 C. atoms) with a hydrogen halide or other halogenating agent, such as phosgene, thionyl chloride or phosphorus pentachloride, and if desired with formaldehyde or a polymer thereof, or with a dihalogenodimethyl ether, or by interacting a hydrohalide of the said carbamate with formaldehyde or a polymer thereof. In examples, methylol octadecyl carbamate is reacted with hydrogen chloride or phosgene and paraformaldehyde, or with dichlorodimethyl ether, and octadecyl carbamate is reacted with hydrogen chloride and paraformaldehyde ; in each case the products are reacted with pyridine to form the quaternary ammonium chloride. The products may be applied to textiles to render them soft and water-repellent, and if desired crease-resistant, by the processes described in the parent Specification.
    • 36. 发明专利
    • Process for the manufacture of wetting, cleansing and dispersing agents
    • GB452139A
    • 1936-08-12
    • GB3258834
    • 1934-11-12
    • ICI LTDALFRED WILLIAM BALDWIN
    • D06M13/342
    • Products applicable as wetting, cleansing, dispersing, emulsifying, and softening agents are obtained by acylating primary or secondary alkoxyarylamine-m- or p-monosulphonic acids of the benzene series with oleic acid or its anhydride or chloride. The following examples are specified: (1) 4-Amino-1-ethoxybenzene-2-sulphonic acid is stirred in caustic soda solution with gradual addition of oleic acid chloride, the temperature being kept below 15 DEG C. and the jelly-like paste obtained is neutralized; the product may be used as a scouring and dispersing agent, its aqueous solution being stable to hydrolysis by mineral acids and exerting a powerful dispersing action on lime soaps; (2) 4-Amino-1-methoxybenzene-2-sulphonic acid is similarly treated with oleic acid chloride; (3) 2-Amino - 1 - methoxybenzene - 4 - sulphonic acid is similarly treated with oleic acid chloride; the product is an aqueous gel mixture less clear and less soluble than that of (1) or (2). Specifications 341,053 and 343,524 are referred to.ALSO:Products applicable as wetting, cleansing, dispersing, emulsifying, and softening agents are obtained by acylating primary or secondary alkoxyarylamine-m- or p-monosulphonic acids of the benzene series with oleic acid or its anhydride or chloride. The following examples are specified: (1) 4-Amino-1-ethoxybenzene-2-sulphonic acid is stirred in caustic soda solution with gradual addition of oleic acid chloride, the temperature being kept below 15 DEG C., and the jelly-like paste obtained is neutralized; the product may be used as a scouring and dispersing agent, its aqueous solution being stable to hydrolysis by mineral acids and exerting a powerful dispersing action on lime soaps; (2) 4-Amino-1-methoxybenzene-2-sulphonic acid is similarly treated with oleic acid chloride; (3) 2-Amino-1-methoxybenzene-4-sulphonic acid is similarly treated with oleic acid chloride, the product is an aqueous gel mixture less clear and less soluble than that of (1) or (2). Specifications 341,053 and 343,524 are referred to.
    • 37. 发明专利
    • Improved dyeing process
    • GB450868A
    • 1936-07-24
    • GB244335
    • 1935-01-24
    • ICI LTDALFRED WILLIAM BALDWINCLARENCE SYDNEY WOOLVIN
    • Animal fibres are dyed with indigo, chrome, or lactam dyestuffs, before, during, or after being treated with condensation products of higher fatty acids or cycloaliphatic acids containing eight or more carbon atoms with (a) polyglycerols or excess glycerol under conditions giving esters of polyglycerols or (b) excess polyhydric alcohols containing more than three hydroxy groups, e.g. sorbitol, erythritol or lower sugars or polymerization products thereof. An alkaline polymerizing agent such as caustic potash and temperatures above 250 DEG C. are used when esterification is effected with excess glycerol instead of polyglycerols. In examples: (1) wool slubbing is dyed in a hydrosulphite indigo vat or a fermentation or zinc-lime indigo vat containing the condensation product of oleic acid with excess glycerol; (2) wool slubbing is dyed in a bath containing the same condensation product used in example 1, Solochrome black PV, acetic acid and sodium sulphate, and the dyeing treated with potassium dichromate after addition of dilute sulphuric acid; (3) wool is immersed in a bath containing a product obtained from oleic acid and excess glycerol, the dyestuff described in example 1 of Specification 394,312, glauber salt, ammonium acetate and ammonia and lactamisation of the dyestuff effected by treating the material with boiling dilute sulphuric acid. The use of halogenated indigos and sulphuric esters of leuco indigos is mentioned. Specification 421,969 also is referred to.
    • 38. 发明专利
    • New wetting, cleansing, and emulsifying agents
    • GB435039A
    • 1935-09-12
    • GB776934
    • 1934-03-12
    • ICI LTDALFRED WILLIAM BALDWINHENRY ALFRED PIGGOTT
    • C11D1/28
    • Sulphuric esters having wetting, cleansing, foaming and emulsifying properties are prepared by treating with an addition product of sulphur trioxide and a tertiary amine, the aliphatic hydroxysulphides obtained by interacting alkyl mercaptans having 10--30 carbon atoms with halogenhydrins. In examples: (1) cetyl mercaptan is reacted with ethylene chlorhydrin in the presence of sodium methoxide and the 2-hydroxyethylcetylsulphide produced sulphonated by means of sodium pyrosulphate and pyridine; (2) cetylmercaptan is reacted with glycerol a -monochlorhydrin in the presence of sodium and xylene and the b : \su-dihydroxypropylcetylsulphide produced sulphonated with sodium pyrosulphate and pyridine; the product may be dried and freed from inorganic salts by means of methyl alcohol. Ethylenebromhydrin, pentaerythritol and mannitol dichlor and dibromhydrins are mentioned as starting materials as well as dodecyl, tetradecyl, octadecenyl, eikosyl and melissyl mercaptans. Specifications 317,736, [Class 2 (iii)], and 412,305 (as open to inspection under Sect. 91) are referred to.ALSO:Sulphuric esters having emulsifying properties are prepared by treating with an addition product of sulphur trioxide and a tertiary amine, the aliphatic hydroxysulphides obtained by interacting alkyl mercaptans having 10--30 carbon atoms with halogenhydrins. In examples: (1) cetyl mercaptan is reacted with ethylene chlorhydrin in the presence of sodium methoxide and the 2-hydroxyethyl cetyl sulphide produced sulphonated by means of sodium pyrosulphate and pyridine: (2) cetylmercaptan is reacted with glycerol a -monochlorhydrin in the presence of sodium and xylene and the b :g -dihydroxypropylcetylsulphide produced sulphonated with sodium pyrosulphate and pyridine; the product may be dried and freed from inorganic salts by means of methyl alcohol. Ethylenebromhydrin, pentaerythritol and mannitol dichlor and dibromhydrins are mentioned as starting materials as well as dodecyl, tetradecyl, octadecenyl, eikosyl and melissyl mercaptans. Specifications 317,736, [Class 2 (iii)], and 412,305 (as open to inspection under Sect. 91) are referred to.
    • 39. 发明专利
    • Dyestuff intermediates
    • GB419945A
    • 1934-11-19
    • GB1433433
    • 1933-05-17
    • ICI LTDALFRED WILLIAM BALDWINREGINALD WILLIAM EVERATTARTHUR HOWARD KNIGHT
    • 3-Alkylamino-p-cresol alkyl ethers (the N-alkyl group being methyl, ethyl, a propyl or a butyl group) are treated with aqueous ethylenechlorhydrin in presence of a mild alkali whereby N-b -oxyethyl derivatives are obtained. The products may be used for making monazo dyes by coupling them with a diazotized 2 . 4 - dinitraniline containing no sulpho or carboxy groups, which dyes give violet shades on acetate artificial silk. In an example N-ethylcresidine (prepared by heating cresidine with ethylchloride, converting the secondary base to the nitrosamine which is isolated, reduced and steam distilled) is heated with aqueous ethylenechlorhydrin in presence of calcium carbonate and Bentonite; the resulting N - ethyl - b - oxyethylcresidine may be coupled with diazotized 2.4-dinitraniline to give a blue-violet dye for cellulose acetate. Diazo compounds also specified are 2.4-dinitro-2-anisidine, 3.5-dinitro-2-toluidine and 6-chloro-2.4-dinitraniline. The Provisional Specification relates to the treatment with aqueous ethylenechlorhydrin of alkoxy-monalkylamino-toluenes having a free p-position.
    • 40. 发明专利
    • Manufacture of benzyl ethers
    • GB393937A
    • 1933-06-02
    • GB3345831
    • 1931-12-02
    • ICI LTDALFRED WILLIAM BALDWINALFRED DAVIDSON
    • C07C41/01
    • Benzyl ethers are manufactured by reacting a benzyl halide with an alcohol containing more than ten carbon atoms in the presence of finely divided aluminium, e.g. commercial aluminium powder, and a sufficiency of an acid binding agent such as chalk or magnesia. The reaction may be effected by heating at about the boiling point of the benzyl halide, conveniently in a vessel fitted with a stirrer and a short reflux condenser. The products may be sulphonated by the process of Specification 378,454 to produce wetting and detergent agents. In examples: (1) octadecyl alcohol and benzyl chloride are heated in the presence of aluminium powder and chalk to produce octadecylbenzyl ether; the octadecyl alcohol may be replaced by dodecyl alcohol; (2) cetylbenzyl ether is produced from cetyl alcohol using magnesia as acid binding agent; (3) the cetyl alcohol in (2) is replaced by dodecyl alcohol, yielding dodecylbenzyl ether; (4) oleylbenzyl ether is produced from oleyl (octadecenyl) alcohol by the process of (1).