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1. 发明专利

GB817294A Improvements relating to regenerated cellulose fibres, threads, films and the like 未知
公开(公告)号：GB817294A
公开(公告)日：1959-07-29
申请号：GB2381356
申请日：1956-08-02
申请人： COURTAULDS LTD
发明人： REEDER FRANK , MAHOMED RAMON SIDICK
IPC分类号： D01F11/02 , D06M13/11
摘要： Regenerated cellulose threads, films and like products having a reduced water imbibition are produced by applying to the products a compound containing at least two 2 : 3-epoxypropyl groups and then heating to bring about reaction between the regenerated cellulose and the epoxy compound. The regenerated cellulose products may be treated with an aqueous solution of the 2 : 3-epoxypropyl compound, e.g. bis-(2 : 3-epoxypropyl)ethyl amine or tris-(2 : 3-epoxypropyl)amine, dried and then heated at 70-150 DEG C. for 5 minutes to 12 hours. Alternatively the impregnated products may be heated in a closed vessel to effect the epoxide-cellulose reaction and then washed and dried. The process may be modified by using a compound containing two or more 3-chloro-2-hydroxypropyl groups, e.g. tris-(3-chloro-2-hydroxypropyl)amine, the heat treatment being then effected in the presence of alkali to convert the 3-chloro-2-hydroxypropyl groups into 2 : 3-epoxypropyl groups on the products. Compounds containing one or more 2 : 3-epoxypropyl groups as well as 3-chloro-2-hydroxypropyl groups, e.g. N,N1-bis(2 : 3-epoxypropyl)-tetra-(3-chloro-2-hydroxypropyl)ethylene diammonium chloride, may also be used. In one example, staple fibres of "never-dried" viscose rayon are treated. Specifications 471,880, [Group IV], and 795,356 are referred to.

2. 发明专利

DE2429254A1 未知
公开(公告)号：DE2429254A1
公开(公告)日：1975-01-23
申请号：DE2429254
申请日：1974-06-19
申请人： COURTAULDS LTD
发明人： MAHOMED RAMON SIDICK , GARDNER BRIAN CONRAD
IPC分类号： C07F9/06 , C07F9/6581 , C08G79/02 , C08L85/02 , D01F2/10 , D06M15/673 , C07F9/65

3. 发明专利

GB1113785A Improvements in and relating to the finishing of cellulosic articles 未知
公开(公告)号：GB1113785A
公开(公告)日：1968-05-15
申请号：GB3874164
申请日：1964-09-23
申请人： COURTAULDS LTD
发明人： MAHOMED RAMON SIDICK
IPC分类号： C08K5/20
摘要： A resin suitable as a finish for cellulosic articles comprises a curable aminoplast precondensate containing 3,4,41 - trichlorocarbanilide; the latter may be covalently bonded to the precondensate or merely dispersed therein. The resin may be in the form of an aqueous solution containing 0.5 to 1.5% by weight of 3,4,41-trichlorocarbanilide which may contain an acid or latent acid curing catalyst for the resin. The resin may be cured by heating to at least 100 DEG C. (e.g. 140-160 DEG C.) for at least 2 minutes.ALSO:Natural and regenerated cellulose articles are rendered crease-resistant by treatment with an aqueous solution of an aminoplast precondensate containing 3,4,4\sv-trichlorocarbanilide followed by curing at at least 100 DEG C (e.g. 140-160 DEG C for 2 mins.). The amount of retained resin may be from 5 to 15% by wt. of the cellulosic article. The solution may be padded or sprayed onto the articles. The examples relate to treatment of fabrics with urea/formaldehyde and melamine/formaldehyde precondensates containing 3,4,4\sv-trichlorocarbanilide.ALSO:Natural and regenerated cellulose materials are rendered resistant to bacterial attack by treatment with an aqueous solution of an aminoplast (e.g. urea/formaldehyde, melamime/formaldehyde) precondensate containing 3, 4, 4\sv-trichlorcarbanilide followed by curing at at least 100 DEG C for at least 2 minutes.

4. 发明专利

GB786383A Improvements in and relating to the treatment of regenerated cellulose products 未知
公开(公告)号：GB786383A
公开(公告)日：1957-11-20
申请号：GB2179455
申请日：1955-07-28
申请人： COURTAULDS LTD
发明人： MAHOMED RAMON SIDICK
IPC分类号： D06M13/203
摘要： Regenerated cellulose in the form of thread, filaments, yarns, staple fibres or fabric is impregnated with an aqueous solution of propiolic acid or with an aqueous solution of propargyl alcohol and a mercuric chloride catalyst, and then dried and heated. Heating is preferably carried out at 100-150 DEG C. for 10-60 minutes. The water-imbibition of the regenerated cellulose is thus reduced.

5. 发明专利

GB1185151A Improvements relating to the Production of Artificial Spandex Filaments 未知
公开(公告)号：GB1185151A
公开(公告)日：1970-03-25
申请号：GB3190966
申请日：1966-07-15
申请人： COURTAULDS LTD
发明人： MAHOMED RAMON SIDICK
IPC分类号： D01F6/72
摘要： 1,185,151. Making spandex filaments. COURTAULDS Ltd. 14 July, 1967 [15 July, 1966], No. 31909/66. Heading B5B. [Also in Division C3] In the manufacture of spandex filaments by reacting an hydroxyl terminated polyester or polyether with an excess of a diisocyanate of the type OCN-R-NCO in which R is a divalent hydrocarbon radical to form a spandex precursor and extruding a solution of the precursor into a coagulating or spinning bath containing a difunctional compound capable of reacting with isocyanate groups to form the spandex polymer in filament form, a substituted phenol is added to the preformed polyester or polyether, in a minor proportion based on the weight of the polyester or polyether, before the polyester or polyether is reacted with the diisoyanate, and after the filaments have been produced and have been withdrawn from the spinning bath, they are stretched in the never-dried state and heated while they are so stretched, e.g. during the drying of the filaments. The substituted phenol contains, in addition to at least one OH group, at least one further group, such as an amino, nitro, halo or substituted alkyl group. The preferred compound is "bisphenol A" (i.e. p-p 1 -isopropylidene diphenol). In an example, a polyester of molecular weight about 3100 is prepared by heating together ethylene glycol, propylene glycol, glycerol and adipic acid; 2% of bisphenol A, based on the weight of the polyester, and p-p 1 -diphenylmethane diisocyanate are added. The reaction mixture is diluted to 88% solids content with tetrahydrofuran and the solution obtained is extruded into a 12% solution of ethylene diamine is isopropyl alcohol. The filaments thereby formed are removed from the spinning bath, washed with water to remove adherent spinning bath constituents, stretched 85% and then dried while so stretched on a reel heated to 180‹ C.

6. 发明专利

GB1103565A Improvements relating to the production of artificial fibres 未知
公开(公告)号：GB1103565A
公开(公告)日：1968-02-14
申请号：GB5031163
申请日：1963-12-20
申请人： COURTAULDS LTD
发明人： MAHOMED RAMON SIDICK , GRAHAM COLIN LESLIE , ROSE LESLIE
IPC分类号： D01F6/72
摘要： 1,103,565. Spandex fibres. COURTAULDS Ltd. 18 Dec., 1964 [20 Dec., 1963; 23 July, 1964], Nos. 50311/63 and 29643/64. Heading B5B. Spandex fibres are produced by extruding a reaction product of a polyester and a polyisocyanate or of a polyether and a polyisocyanate through a jet into a coagulating bath which contains a primary aliphatic diamine and a diluent comprising an aliphatic or cycloaliphatic mono-alcohol, the concentration of diamine in the bath being not greater than 30 grams per 100 c.c. of the bath and the bath being either anhydrous or containing water in a concentration not exceeding 5% by weight based on the weight of the bath. In forming the reaction product, i.e. the precursor of the spandex fibres, the polyesters used are defined as the known types of chain-extended polyesters obtained by condensing polybasic acids, preferably dibasic carboxylic acids, with one or more glycols to produce polymers having terminal carboxyl groups, for example polyethylene adipate, polypropylene adipate, polyethylene sebacate, polypropylene sebacate and mixed esters obtained from a dibasic acid, for example adipic acid or sebacic acid, and mixtures of ethylene glycol and propylene glycol; the polyethers used are defined as the known types of chain-extended polyethers having ether linkages separated by ethylene, propylene or butylene groups and having terminal hydroxyl groups capable of reacting with isocyanate groups, for example polyethylene glycols, polypropylene glycols and polytetramethylene glyools. The polyisocyanate used to react with the polyester or polyether may be a di-isocyanate for example meta- or para-phenylene di-isocyanate, diphenyl methane di-isocyanate or tolylene di-isocyanate. In the coagulating bath, the preferred diamine is ethylene diamine, but diamines disclosed in Specification 847,673 may be used; the alcohol may be methanol, ethanol, n- or iso-propyl alcohol, n-, sec-, tert- or iso-butyl alcohol, cyclohexanol or the monoethyl ether of ethylene glycol. The preferred alcohol is isopropyl when there may be from 9 to 22 grams of ethylene diamine per 100 c.c. of the bath for an immersion length of the fibres not greater than 1 inch, or only 4 grams of ethylene diamine per 100 c.c. of the bath for an immersion length of from 3 to 4 inches.

7. 发明专利

GB1029838A Improvements in and relating to viscose rayon filaments 未知
公开(公告)号：GB1029838A
公开(公告)日：1966-05-18
申请号：GB3344961
申请日：1961-09-19
申请人： COURTAULDS LTD
发明人： MAHOMED RAMON SIDICK
IPC分类号： D01F2/10 , D01F11/02
摘要： 1,029,838. Modified viscose rayon. COURTAULDS Ltd. Sept. 18, 1962 [Sept. 19, 1961], No. 33449/61. Heading B5B. Modified viscose rayon is produced by wet spinning into an acidic coagulating and regenerating bath a viscose containing 10 to 40% of a protein such as casein based on the weight of the cellulose, and 10 to 40% of urea based on the weight of the protein, stretching the filaments and completing the regeneration of the cellulose component. In order to reduce the tendency for the polypeptide to be leached from the filaments in wet processing, the filaments are preferably impregnated with a cross-linking agent for one or more of the components of the filaments and the impregnated filaments are then preferably submitted to conditions causing the agent to react with one or more of the components. The cross-linking agent may be formaldehyde, an alkali metal cyanate or a zirconyl salt such as sodium zirconyl silicate. The viscose may be formed by mixing a protein, urea and alkali cellulose and xanthating the cellulose in known manner, or the protein and urea can be added to the ingredients of the viscose at any subsequent stage of the making of the viscose, including addition of protein and urea to the preformed viscose. As proteins are subject to degradation by caustic alkalis and viscose is alkaline, the protein and urea are preferably added to the viscose immediately before it is de-aerated on its way to an ageing tank or a spinning machine. In an example, 100 parts of a viscose containing 7À6% of cellulose and 6À2% of caustic soda are mixed with 1À52 parts of casein and 0À31 part urea, the mixture is agitated until the casein and urea have dissolved and is then filtered and deaerated. The solution is spun into a coagulating and regenerating bath containing 10% sulphuric acid, 20% sodium sulphate and 1À1% zinc sulphate. The filaments are taken from the bath, stretched by 60% of their original length before they are completely regenerated with hot dilute acid, washed and dried. The modified regenerated cellulose filaments of the invention are dyeable with acid dyes and have higher wet and dry strengths than prior art modified regenerated cellulose filaments.

8. 发明专利

GB930135A Improvements relating to the production of regenerated cellulose fibres 未知
公开(公告)号：GB930135A
公开(公告)日：1963-07-03
申请号：GB923561
申请日：1961-03-14
申请人： COURTAULDS LTD
发明人： MAHOMED RAMON SIDICK
IPC分类号： D01F2/10 , D06P1/52 , D06P5/22
摘要： A water-soluble reaction product made by heating epichlorhydrin and a polyamide containing secondary amine groups is incorporated in regenerated cellulose fibres, preferably by incorporation in the viscose prior to spinning, although alternatively the spun fibres may be treated with the polyamide-epoxy resin reaction product before drying. The polyamide may be a reaction product of a polyalkylene polyamine, e.g. diethylene triamine, triethylene tetramine, tetraethylene pentamine or dipropylene triamine, or mixtures thereof, with a dicarboxylic acid, e.g. adipic, azelaic, or diglycollic acid or mixtures thereof. A portion of the polyalkylene polyamine may be replaced by a diamine. Preferably the water-soluble polyamides contain the recurring groups -NH(CnH2nHN)x-CORCO-where n and x are each 2 or more and R is the divalent organic radical of the dicarboxylic acid. Conventional regenerating baths containing sulphuric acid and sodium and zinc sulphates are used. Fibres so made may be dyed with wool dyes (see Group IV(c)). Specification 930,132 and U.S.A. Specifications 2,926,116 and 2,926,154 are referred to.ALSO:Regenerated cellulose fibres having incorporated therein a water-soluble reaction product made by heating epichlorhydrin with a polyamide containing secondary amine groups are dyed with wool dyes. The polyamide-epoxy resin reaction product may be used in proportions of 0,5-10%, based on the cellulose content of the viscose. In an example, fibres were dyed in an AzoGeranine 2GS sulphuric acid bath to a full solid shade after 1 hour, which was not reduced by prolonging dyeing under acid conditions for a further 3 hours, while exhaustion after 4 hours was 72%. Preferably the reaction product is incorporated in the viscose prior to spinning, although alternatively the spun fibres may be treated with the polyamide-epoxy resin reaction product before drying. The polyamide may be a reaction product of a polyalkylene polyamine, e.g. diethylene triamine, triethylene tetramine, tetraethylene pentamine or dipropylenetriamine, or mixtures thereof, with a dicarboxylic acid, e.g. adipic, azelaic, or diglycollic acid or mixtures thereof. A portion of the polyalkylene polyamine may be replaced by a diamine. Preferably the water-soluble polyamides contain the recurring groups -NH(CnH2nHNx -CORCO- where n and x are each 2 or more and R is the divalent organic radical of the dicarboxylic acid. Specification 930,132 and U.S.A. Specifications 2,926,116 and 2,926,154 are referred to.

9. 发明专利

GB852962A Improvements in and relating to the treatment of textile fabrics consisting of or containing cellulose fibres 未知
公开(公告)号：GB852962A
公开(公告)日：1960-11-02
申请号：GB3517757
申请日：1957-11-12
申请人： COURTAULDS LTD
发明人： MAHOMED RAMON SIDICK
IPC分类号： D06M13/332
摘要： Fabrics consisting of or containing cellulose fibres are rendered crease-shedding by applying a diamine to the fabric in the loose state, stretching the fabric containing the diamine, washing the diamine out of the fabric while it is under tension and then drying the fabric under tension. Specified diamines are ethylene diamine and hydroxyethylene diamine and these may be applied to the fabrics undiluted or as an aqueous solution in an amount which is preferably 200% by weight of the dry fabric. The fabric containing the diamine may be stretched between 30 to 50% of its relaxed area. The fabric may be washed with hot water and, after drying, may be rendered dry crease-resistant by a resin treatment as described in Specifications 449,243 and 562,790. Specified cellulosic fibres are cotton and regenerated cellulose and the fabric preferably contains 50% or more by weight of such fibres. Specification 727,882 also is referred to.

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