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序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
161 Crystalline poly (methylene sulfide) and process for its preparation GB2017360 1960-06-08 GB932384A 1963-07-24
A thermoplastic, crystalline, fibre-forming poly(methylene sulphide) having a melting point of at least 220 DEG C. is prepared by condensing methane dithiol or mercaptomethyl sulphide (HSCH2SCH2SH) in the presence of a basic catalyst at a temperature of 25 DEG to 250 DEG C. while removing the hydrogen sulphide which is liberated. The product may be further treated with a mineral acid, e.g. hydrochloric acid, at a temperature of 90 DEG -100 DEG C., washed, dried and reheated above 100 DEG C. in the presence of an alkaline catalyst until no more H2S is evolved, to produce a polymer of higher melting point. Suitable catalysts are ammonia, di- and tri-ethylamine, methylamine, n-hexylamine, tri-n-hexylamine, pyridine, piperidine, pentamethylene diethylene triamine, tributylamine, hydrazine, dimethyl formamide, dimethyl acetamide, triphenyl-phosphine, -arsine and -stilbene, and sodium hydroxide, carbonate, bicarbonate and sulphite. The reaction may be effected in a medium such as tetramethylene sulphone, dimethyl acetamide, nitromethane, dimethyl formamide or mineral oil. The products are compared with a poly(methylene sulphide) prepared from H2S and hexamethylene tetramine. Uses: Fibres, films, tubes, rods &c.
162 FR897600 1962-05-15 FR1330819A 1963-06-28 BAPSERES PIERRE; SIGNOURET JEAN
163 FR831199 1960-06-27 FR1261532A 1961-05-19
164 Improvements in polymercaptals and polysulphones and in processes for their production GB1577050 1950-06-23 GB694441A 1953-07-22 MAY GEOFFREY BILSON; WHEATLEY EDWARD WILLIAM; FISHER JAMES WOTHERSPOON
Polymercaptals or polythioethers of the formula [-R-S-CH2-S-]x, where R is a divalent aliphatic radical having more than 3 atoms in a straight chain, may be made by reacting formaldehyde with an equimolar amount of an aliphatic dithiol having more than 3 atoms joining the thiol groups. The reaction is preferably effected under anhydrous conditions at 110 DEG to 150 DEG C. and catalysed by zinc chloride, with or without sodium sulphate, or by gaseous hydrogen chloride. Dithiols specified are tetramethylene-, pentamethylene-, heptamethylene-, decamethylene-, 3-oxa-pentane-1.5-, n-hexane-1.4- and 1.5-, and 5-oxanonane-1.9-dimercaptans. The polythioethers may be oxidized to the corresponding polysulphones, e.g. by hydrogen peroxide or 2Na2CO3.3H2O2, whilst in solution or suspension in lower fatty acids, e.g. formic and/or acetic acid, as described and claimed in Specifications 661,811 and 670,177. In examples, paraformaldehyde is reacted with (1, 2) tetramethylene dimercaptan, (4) hexamethylene dimercaptan, and (5) decamethylene dimercaptan. The products of examples 2, 4, 5 are suspended in formic acid and oxidized by hydrogen peroxide. The products may be spun into filaments. The polysulphones may be reacted with halogens, alkyl and aralkyl halides, chloroformic ester, chloracetic acid, acrylonitrile, crotononitrile, acrylic and crotonic esters, 1-cyano-1.3-butene and its esters, vinylalkyl ketones, maleic esters and organic isocyanates. It is stated that condensations of tetramethylene dimercaptan with paracetaldehyde, benzaldehyde and heptaldehyde failed to give fibre-forming polymers, even when oxidized.
165 Improvements in or relating to new synthetic linear condensation polymers GB1440343 1943-09-03 GB577205A 1946-05-09
Synthetic linear condensation polymers having spiro linkages wherein the spiro carbon forms part of a 5- or 6-membered ring are formed by reacting under polymerizing conditions bifunctional spiran-forming or sperain-containing reactants. Four types of reaction mixture are specified: (1) a mixture of compounds collectively possessing two sets of reactive groups, one of which by reaction with the other forms a linear polymer containing spiro carbon atoms forming part of a 5- or 6-membered ring; (2) a mixture of two mutually reactive bifunctional compounds, one of which contains spiro carbon atoms forming part of a 5- or 6-membered ring; (3) a bifunctional compound containing spiro carbon atoms forming part of a 5- or 6-membered ring and capable of self-condensation; (4) a compound containing two sets of reactive groups which by self-condensation form the desired spiro linkages in the polymer. Types of chemical linkage which may occur in the products of the invention are ester, amide, thioamide, imidoether, thioimidoether, amidine, urethane, thiourethane, dithiourethane, urea, thiourea, guanidine, ketal, thioether, thioketal, sulphone, sulphonium salt, imine, quaternary ammonium salt and anhydride. Examples 1 and 2 describe the formation of a polymeric spiro thioketal from tetrakis (mercaptomethyl) methane and cyclohexanedione-1.4 in dioxane solution, through which hydrogen chloride gas was passed. The product was insoluble in a large number of solvents, and was soluble in boiling naphthalene or boiling anthracene. Example 3 described the preparation of a similar polymer from tetrakis (mercaptomethyl) methane and dodecanedione-2.11. The polymer was partially soluble in benzene, the residue being soluble in phenol. Other polymers specifically mentioned are those from 1,4-diamino-cyclohexane-1.4-dicarboxylic acid, or from 1,4-dihydroxy-cyclohexane-1.4-dicarboxylic acid by self-condensation and that from hexamethylene glycol and spiroundecane dicarboxylic acid. Spirothioketals and spirothioacetals are also generally referred to as being obtained from, e.g. tetrakis (mercaptomethyl) methane and dicarboxyl compounds such as acetylacetone; acetonyl acetone; octadione-2,7; diacetobenzene; benzoylacetone; cyclopentanedione; succinic dialdehyde; adipic dialdehyde; or terephthaldehyde. In place of tetrakis (mercaptomethyl) methane may be employed any organic compound having a quaternary carbon atom joined to four alkyl groups, each of which has a mercaptan group on the carbon atom next to the quaternary carbon atom. If desired, the reaction may be carried out by melting the reactants together with an acid catalyst, or solvents other than dioxane may be employed as reaction medium, e.g. benzene "Cellosolve" (Registered Trade Mark), cyclohexane, anthracene, thiophene, furane, tetrahydrofurane, phenol, or cyclohexanol. Suitable catalysts other than hydrogen chloride are sulphur dioxide, sulphur trioxide, aluminium trichloride, boron trifluoride, hydrogen bromide, hydrogen fluoride or toluene sulphonic acid. The products may be used for textile films, monofils for bristles, transparent sheeting or for coating fabrics. U.S.A. Specificatio 2,071,250 is referred to.
166 FR896736D 1943-07-24 FR896736A 1945-03-01 HERRMANN WILLY O; HAEHNEL WOLFRAM
167 Process for the manufacture of elastic rubber-like substances GB435740 1940-03-08 GB542635A 1942-01-21
542,635. Sulphur-containing condensation products. HUNGARIAN RUBBER GOODS FACTORY, Ltd. March 8, 1940, No. 4357. Convention date, March 11, 1939. [Class 2 (iii)] Elastic rubber-like substances are prepared by heating ethylene dichloride, a polysulphide of an alkali or an alkaline earth and between 5 and 10 per cent. by weight, calculated on the ethylene dichloride, of acetaldebyde, furfural, aldol, crotonaldehyde or benzaldehyde. In examples, plastic rubber-like substances are prepared by heating ethylene dichloride, calcium polysulphide and concentrated ammonia with aldol, benzaldehyde or furfural. Specification 298,889, [Class 2 (iii)], is referred to.
168 Method of preparing plastic materials derived from urea and formaldehyde GB1850833 1933-06-29 GB420317A 1934-11-29
Plastics materials derived from urea and formaldehyde or polymers thereof such as trioxymethylene and containing combined sulphur are prepared by producing hydrogen sulphide by decomposition of a sulphur compound other than ammonium sulphide in the urea-formaldehyde solutions either before or after the formation of methylolurea whilst controlling the pH of the reaction medium between 5 and 7. An alkali or alkaline earth sulphide and acid such as carbonic acid may be added so as to produce hydrogen sulphide and a soluble or insoluble salt. It is possible to use an anhydrous medium and add insoluble sulphides such as zinc, calcium, barium or strontium sulphides and the reaction may be activated by the addition of an acid or by heat. Fillers may be present and in some cases the undecomposed sulphide and the residue from the decomposition may be used as a filler. Luminescent sulphides, which may be activated by treatment with a radio-active salt, may be used to give luminescent bodies. In examples: (1) an aqueous solution of sodium sulphide and formic acid are added to a solution of urea and formaldehyde, the solution being maintained at the desired value by the addition of, if desired, zinc carbonate to yield a product that may be used for preparing plastic masses; (2) a methylolurea is treated as in example (1); (3) a condensation product of urea and formaldehyde prepared in the presence of zinc carbonate is treated as in example (1); (4) a cold solution of urea in formaldehyde or a dimethylolurea solution is treated with a solution of barium sulphide and dilute sulphuric acid or carbonic acid gas; (6) a moulding powder comprising a urea or thiourea-formaldehyde resin prepared in the presence of an acid compound such as benzoic, phthalic, cinnamic, succinic and sebacic acid and a cellulose filling material is mixed with an industrial metal sulphide and the product when moulded yields luminescent pieces; (7) a mixture of a dry methylolurea, an alkaline earth sulphide and benzoic, salicylic and sebacic acid is moulded; (8) a viscous alcoholic solution of an acid condensation product of dimethylolurea is mixed with a dry powdered sulphide such as zinc, calcium or strontium sulphide with or without polyvalent alcohols, oils, resins and plasticizers and used as a varnish. Specification 386,146 is referred to. The Specification as open to inspection under Sect. 91 also included an example (8) describing the interaction of trioxymethylene with a powdered alkali earth sulphide and the condensation of the product with urea or thiourea. This subject-matter does not appear in the Specification as accepted.
169 FR764824D 1933-02-22 FR764824A 1934-05-29 LICHTENBERGER JEAN
170 Multifunctional sulfur-containing polymers, compositions thereof and methods of use US14987806 2016-01-05 US09382447B2 2016-07-05 Steven J. Hobbs; Gregory J. McCollum; Juexiao Cai; Marfi Ito; Lawrence G. Anderson; Renhe Lin
Disclosed are multifunctional sulfur-containing polymers that are the reaction products of a sulfur-containing diol, a polyol containing at least three hydroxyl groups per polyol molecule, and an aldehyde, a ketone, or a combination thereof. Sealant compositions comprising the multifunctional sulfur-containing polymers are also disclosed.
171 Benzodithiophene based copolymer containing thiophene pyrroledione units and preparing method and applications thereof US14647652 2012-11-30 US09328204B2 2016-05-03 Mingjie Zhou; Rong Guan; Manyuan Li; Jiale Huang; Naiyuan Li
A benzodithiophene based copolymer containing thiophene pyrroledione units, a preparing method thereof, and applications of the copolymer in polymer solar cells, organic light-emitting, organic field effect transistors, organic optical storage, organic nonlinear materials or organic laser.
172 Multifunctional sulfur-containing polymers, compositions thereof and methods of use US14794855 2015-07-09 US09260567B2 2016-02-16 Steven J. Hobbs; Gregory J. McCollum; Juexiao Cai; Marfi Ito; Lawrence G. Anderson; Renhe Lin
Disclosed are multifunctional sulfur-containing polymers that are the reaction products of a sulfur-containing diol, a polyol containing at least three hydroxyl groups per polyol molecule, and an aldehyde, a ketone, or a combination thereof. Sealant compositions comprising the multifunctional sulfur-containing polymers are also disclosed.
173 Methods of mercaptanizing olefinic hydrocarbons and compositions produced therefrom US13891224 2013-05-10 US09133370B2 2015-09-15 Michael S. Matson; Colin Cameron; Alastair Robert Marrion; Anthony Colin Wright; Mitchell D. Refvik; Eric J. Netemeyer
The present invention discloses processes for forming polythiol compositions from olefinic hydrocarbons such as cyclooctadiene, cyclododecatriene, and trivinylcyclohexane. The polythiol compositions produced from these processes, including the sulfur-containing compounds of these compositions, also are described.
174 Multifunctional sulfur-containing polymers, compositions thereof and methods of use US14499293 2014-09-29 US09012592B2 2015-04-21 Steven J. Hobbs; Gregory J. McCollum; Juexiao Cai; Marfi Ito; Lawrence G. Anderson; Renhe Lin
Disclosed are multifunctional sulfur-containing polymers that are the reaction products of a sulfur-containing diol, a polyol containing at least three hydroxyl groups per polyol molecule, and an aldehyde, a ketone, or a combination thereof. Sealant compositions comprising the multifunctional sulfur-containing polymers are also disclosed.
175 Diaphragm for electro-acoustic transducer US13607122 2012-09-07 US08623970B2 2014-01-07 Kouichirou Taniguchi
A diaphragm for electro-acoustic transducers, especially a diaphragm for speakers, and a film for the diaphragm excellent in the formability and the durability in high-output operation are obtained. A diaphragm for electro-acoustic transducers formed of a film that contains a polybiphenyl ether sulfone resin (A) having a specific repetitive unit or contains it and a crystalline resin (B) such as polyaryl ketone resin; and a film for use for the diaphragm.
176 Methods of mercaptanizing olefinic hydrocarbons and compositions produced therefrom US12849072 2010-08-03 US08461293B2 2013-06-11 Michael S. Matson; Mitchell D Refvik; Eric J Netemeyer; Colin Cameron; Alastair Robert Marrion; Anthony Colin Wright
The present invention discloses processes for forming polythiol compositions from olefinic hydrocarbons such as cyclooctadiene, cyclododecatriene, and trivinylcyclohexane. The polythiol compositions produced from these processes, including the sulfur-containing compounds of these compositions, also are described.
177 Polymer Compositions and Methods of Making and Using Same US13362836 2012-01-31 US20120130040A1 2012-05-24 Leonid RAPPOPORT; Alexander VAINER; Aleksander YAM
A composition comprising a reaction product of reactants comprising (a) a compound comprising (i) a polysulfide moiety and (ii) an oxygen atom in a β-position to a sulfur link having the formula: where each R is independently selected from H or a C1 to C20 organyl group, R′ is independently selected from a C1 to C20 organyl group, R″′ is independently selected from H or a C1 to C20 organyl group, and x has an average of greater than 2, (b) a compound comprising a nucleophilic moiety; and (c) a compound comprising a moiety reactive to active hydrogen.
178 Photoactivatable chain transfer agents and semi-telechelic photoactivatable polymers prepared therefrom US619303 1996-03-21 US5942555A 1999-08-24 Melvin J. Swanson; Richard A. Amos; Dale G. Swan; Gary W. Opperman
A photoactivatable reagent useful as a chain transfer reagent for providing a semitelechelic polymer having one or more terminal photoactivatable groups. The reagent provides one or more photoactivatable groups and one or more sulfhydryl (or other chain transfer) groups, the photoactivatable and chain transfer groups optionally being joined together by a spacer group. The reagent can be used to prepare a polymer by serving to initiate the polymerization of ethylenically unsaturated monomers. The reagent itself becomes an integral part of the resultant polymer, thereby providing the polymer with a terminal photoactivatable nature. The method provides a number of benefits, including the ability to provide homogeneous photoactivatable polymer compositions, e.g., in terms of the uniform location of the photogroup(s) on the terminal portion of each polymer molecule and the ability to build a desired nonpolar quality, and in turn improved surfactancy, into otherwise polar polymers.
179 Polymer compositions comprising acetals of adducts of acrolein and isocyanuric acid US218900 1980-12-22 US4375537A 1983-03-01 Saul M. Cohen; John R. LeBlanc
Polymer compositions comprising acetals of acrolein-isocyanuric acid adducts and polyfunctional compounds containing acetal-reactive groups such as alcohols, thiols oxiranes and amides. The compositions are useful in molding, laminating, coating and adhesive applications.
180 Process for producing halogen-terminated polysulfide polymers US837116 1977-09-28 US4124645A 1978-11-07 Eugene R. Bertozzi
High molecular weight polysulfide polymers are produced by a novel process using polythiodiglycol, polymerizing it with an acid catalyst and with means for removing the water of reaction to make a medium molecular weight halogen-terminated polymer. The resultant halogen-terminated polymer may then be reacted with sodium polysulfide to form a latex dispersion of very high molecular weight. The dispersion may then be converted to --SH terminated polymers by the usual methods.