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公开(公告)号:US3725377A
公开(公告)日:1973-04-03
申请号:US3725377D
申请日:1970-05-11
发明人: COTTLE J
CPC分类号: C08F10/00 , C07C7/005 , C08F36/04 , Y10S526/912 , C07C11/167 , C08F2/38 , C08F2/00
摘要: A process for polymerization of monomers containing ethylenic unsaturation including contacting the polymerization feed stock stream with an adsorbent material, and periodically regenerating the adsorbent material with purified separated nonpolymerizable hydrocarbons separated from the feed stock stream after effectuation of the polymerization step.
摘要翻译: 一种含有烯属不饱和单体的单体的聚合方法,包括使聚合原料料流与吸附剂材料接触,并且在实施聚合步骤之后,用从原料料流中分离的纯化的分离的不可聚合烃周期性地再生吸附材料。
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公开(公告)号:US3668279A
公开(公告)日:1972-06-06
申请号:US3668279D
申请日:1970-07-06
申请人: UNIROYAL INC
发明人: LOVELESS FREDERICK C , HARTZ ROY E
CPC分类号: C08G81/021
摘要: Living monolithio polymers are coupled by the action of certain novel coupling agents (e.g., nitrobenzene, sulfur, dimethyl terephthalate, acrylonitrile, maleic anhydride). For example, styrene is first polymerized in benzene with n-butyl lithium catalyst to form a styrene polymer block (S) followed by addition of butadiene to form a butadiene polymer block (B) copolymerized with the styrene block in the form of a living monolithio block copolymer SB- Li+. Then a coupling agent, such as nitrobenzene, is added, forming coupled block copolymer SBCSB where C is a residue of the coupling agent. Coupling of three molecules of living polymer is possible with maleic anhydride, or of four molecules with dimethyl terephthalate.
摘要翻译: 活性整体聚合物通过某些新型偶联剂(例如硝基苯,硫,对苯二甲酸二甲酯,丙烯腈,马来酸酐)的作用而偶联。 例如,苯乙烯首先在苯中用正丁基锂催化剂聚合以形成苯乙烯聚合物嵌段(S),然后加入丁二烯以形成与苯乙烯嵌段共聚的丁二烯聚合物嵌段(B) 嵌段共聚物SB( - )Li(+)。 然后加入偶联剂如硝基苯,形成偶联的嵌段共聚物SBCSB,其中C是偶联剂的残基。 三分子活性聚合物与马来酸酐或四分子与对苯二甲酸二甲酯的偶联是可能的。
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公开(公告)号:US3652517A
公开(公告)日:1972-03-28
申请号:US3652517D
申请日:1970-02-05
发明人: YOSHIMOTO TOSHIO , KANEKO SEIYA , SASAKI TAKASHI , NARUMIYA TSUNEAKI , YOSHII HIROSHI , TAKAMATSU TETSUYA
摘要: HALOGENATED AND HYDROGENATED POLYMERS WHICH ARE VULCANIZABLE AND WHICH ARE PRODUCED BY HYDROGENATING A POLYMER DISSOLVED IN AN INERT SOLVENT IN THE PRESENCE OF A ZIEGLER-TYPE HYDROGENATION CATALYST, HALOGENATING THE RESULTING HYDROGENATED POLYMER BY CONTACTING HALOGEN THEREWITH, MIXING WATER OR A NON-SOLVENT WITH SAID HYDROGENATED POLYMER SOLUTION, REMOVING THE CATALYST WITH WATER OR THE NON-SOLVENT, AND RECOVERING THE HALOGENATED HYDROGENATED POLYMER FREE FROM THE CATALYST.
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公开(公告)号:US3637635A
公开(公告)日:1972-01-25
申请号:US3637635D
申请日:1964-01-27
申请人: POLYMER CORP
CPC分类号: C08C19/00
摘要: 1. A PROCESS OF MODIFYING A SUBSTANITALLY GEL-FREE RUBBERY POLYMER OF BUTADIENE PREPARED IN THE PRESENCE OF A ZIEGLER CATALYST AND HAVING AT LEAST 75% OF THE BUTADIENE UNITS IN THE CIS-1,4 CONFIGURATION WHCIH COMPRISES TREATING SAID POLYMER OF BUTADIENE HAVING A MOONEY VISCOSITY OF ABOUT 10 TO 70, WHILE DISPERSED IN AN INERT ORGANIC LIQUID, WITH BETWEEN 0.3 AND 5% BY WEIGHT OF THE BUTADIENE POLYMER OF A LEWIS ACID SELECTED FROM THE GROUP CONSISTING OF HYDROGEN CHLORIDE, ALUMINUM TRICHLORIDE, TITANIUM TETRACHLORIDE AND PRODUCT OF INCOMPLETE STOPPING OF A POLYMERIZATION CATALYST COMPRISING A COBALT SALT AND AN ORGANO-ALUMINUM CHLORIDE, WITH LESS THAN EQUIMOLAR AMOUNT OF A CATALYST STOPPER, TO PRODUCE A SUBSTANTIALLY GEL-FREE MODIFIED POLYMER OF BUTADIENE HAVING A MOONEY VISCOSITY WHICH IS AT LEAST MOONEY POINTS HIGHER THAN THAT OF THE UNMODIFIED POLYMER.
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公开(公告)号:US3635932A
公开(公告)日:1972-01-18
申请号:US3635932D
申请日:1969-05-01
发明人: KECKLER NORMAN F
CPC分类号: C08C2/06
摘要: THE INVENTION RELATES TO POLYMERS, BOTH (1) HOMOPOLYMERS OF HYDROCARBON CONJUGATED-DIENT MONOMERS OF 4 AND 5 CARBON ATOMS AND (2) COPOLYMERS OF SAID MONOMERS WITH ALIPHATIC OR ARYL OLEFINIC MONOMERS PRODUCED BY SOLUTION POLYMERIZATION USING A LITHIUM-CONTAINING CATALYST, WITH PRODUCTION OF MICROGEL. THE MICROGEL IS SEPARATED BY CENTRIFUGING A SOLUTION OF THE POLYMER PRODUCT IN A SOLVENT OF DIFFERENT DENSITY FROM THE MICROGEL.
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公开(公告)号:US3595847A
公开(公告)日:1971-07-27
申请号:US3595847D
申请日:1968-12-30
申请人: BAYER AG
发明人: MAYER-MADER RUDOLF , WOLFF WILLI , HUTHER EDMUND
CPC分类号: C08F36/16 , C08C3/00 , C08C19/08 , C08F236/16
摘要: PROCESS FOR PRODUCING SULPHUR-MODIFIED CHLOROPRENE POLYMERS HAVING A PREDETERMINED MOONEY VISCOSITY BY POLYMERISING CHLOROPRENE AND UP TO 20% BY WEIGHT OF A COMONOMER IN AQUEOUS EMULSION WITH A PEPTISING AGENT, WHERE COAGULATION OF THE LATEX IS EFFECTED IMMEDIATELY AFTER ADDITION OF THE PEPTISING AGENT AND THAT THE POLYMER IS DRIED UNTIL A MOONEY VISCOSITY OF 30 TO 10 MOONEY UNITS ABOVE THE POTENTIAL MINIMUM IS OBTAINED.
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公开(公告)号:US3912683A
公开(公告)日:1975-10-14
申请号:US48790774
申请日:1974-07-12
发明人: O'FARRELL CHARLES P
CPC分类号: C08J3/07 , C08F8/44 , C08J2323/32 , C08F210/12
摘要: Sulfonated butyl rubber containing greater than 0.5 mole percent sulfonate functionality is emulsified by dissolving the butyl rubber in an aromatic solvent, i.e. toluene, sulfonating the polymer, neutralizing the polymer with a weak base, and thereafter emulsifying the solution using as the emulsifying agent an anionic emulsifier, i.e. a sodium sulfate derivative of an ethoxylated nonyl phenol containing 4 moles of ethylene oxide.
摘要翻译: 通过将丁基橡胶溶解在芳族溶剂即甲苯中磺化聚合物,用弱碱中和聚合物,然后用作为乳化剂的阴离子乳化溶液,将含有大于0.5摩尔%磺酸盐官能度的磺化丁基橡胶乳化 乳化剂,即含有4摩尔环氧乙烷的乙氧基化壬基苯酚的硫酸钠衍生物。
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公开(公告)号:US3862103A
公开(公告)日:1975-01-21
申请号:US42075073
申请日:1973-11-30
发明人: CAMPBELL EVERETT W , TRAINA CARL E
CPC分类号: C08C2/06 , Y10S159/10
摘要: This invention relates to an apparatus and method for obtaining dry rubber from a solvent dispersion of said polymer by simultaneously feeding a water/steam mixture and the solvent dispersion to a grinding, pumping device to achieve intimate admixture, and vaporizing at least sufficient amounts of the solvent to effect separation of the polymer as a crumb, removing the water from the crumb and drying said crumb to obtain a dry polymer.
摘要翻译: 本发明涉及一种从所述聚合物的溶剂分散体中获得干橡胶的装置和方法,其通过同时将水/蒸汽混合物和溶剂分散体输送到研磨泵送装置以实现紧密混合,并蒸发至少足够量的 溶剂以实现聚合物作为碎屑的分离,从屑中除去水并干燥所述碎屑以获得干燥的聚合物。
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公开(公告)号:US3855185A
公开(公告)日:1974-12-17
申请号:US22497772
申请日:1972-02-09
申请人: UNIROYAL INC
发明人: LOVELESS F , MILLER D
IPC分类号: C08F8/00 , B01J31/12 , B01J31/14 , B01J31/22 , C07B31/00 , C07B61/00 , C07C1/00 , C07C5/02 , C07C5/03 , C07C11/00 , C07C67/00 , C08C19/02 , C08F8/04 , C07B1/00 , C08D5/00 , C08F27/25
CPC分类号: C08C19/02 , B01J31/122 , B01J31/2234 , B01J2231/645 , B01J2531/842 , B01J2531/845 , B01J2531/847 , C07C5/03 , C07C2531/22 , Y10S585/906 , Y10S585/952
摘要: A hydrogenation catalyst is prepared by: A. providing a hydrocarbon-soluble catalyst precursor which is a reaction product of (a) a transition metal compound (e.g. nickel acetylacetonate) with (b) a phenolic substance (e.g. pnonylphenol); and B. reducing the soluble precursor with (c) an organometallic reducing agent (e.g. n-butyllithium) in a solvent medium to form a highly active catalyst. The catalyst is useful for hydrogenating polyisoprene, EPDM, 1octene, etc.
摘要翻译: 氢化催化剂通过以下步骤制备:
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10.
公开(公告)号:US3842052A
公开(公告)日:1974-10-15
申请号:US31657272
申请日:1972-12-19
申请人: SNAM PROGETTI
CPC分类号: C08C2/06 , C08F10/00 , Y10S159/10 , C08F2/38
摘要: 1. BATCH PROCESS FOR REMOVING THE SOLVENT FROM GUMMY SOLUTIONS OFF POLYMERS SELECTED FROM GROUP CONSISTING OF POLYBUTADIENE, POLYISOPRENE AND OLEFIN TERPOLYMERS, SAID PROCESS BEING CARRIED OUT IN ONE STAGE AT ATMOSPHERIC PRESSURE COMPRISING: (A) FEEDING A HYDROCARBON SOLUTION OF THE POLYMER WHICH CONTAINS HYDROCARBON SOLVENT HAVING A BOILING TEMPERATURE BELOW WATER, THE POLYMER AND UN-REACTED MONOMER INTO A SOLVENT-REMOVAL VESSEL CONTAINING WATER AND FORMING A SUSPENSION OF SAID HYDROCARBON SOLUTION IN SAID WATER; (B) WHILE FEEDING SADI HYDROCARBON SOLUTION, TREATING SAID SUSPENDED SOLUTION BY FEEDING LIVE STEAM INTO SAID SUSPENSION TO KEEP SAID SUSPENSION AGITATED AND VIGOROUS STIRRING SAID SUSPENSION AND REGULATING SAID LIVE STEAM FEED SO AS TO MAINTAIN THE TEMPERATURE
AT A TEMPERATURE BETWEEN 70* C. AND 75* C. AND THE PRESSURE AT ATMOSPHERIC PRESSURES; (C) STOPPING THE FEED OF THE HYDROCARBON SOLUTIONOF THE POLYMER INTO SAID VESSEL WHEN A VALUE OF THE WATER/POLYMER RATIO IN SAID VESSEL FROM ABOUT 20/2 TO ABOUT 6/1 HAS BEEN REACHED; (D9 AFTER THE FEED OF SAID HYDROCARBON SOLUTION INTO SAID VESSEL IS STOPPED, FEEDING MORE LIVE STEAM INTO SAID VESSEL SO THAT THE TEMPERATURE IN SAID VESSEL REACHED A VALUE VERY NEAR THE BOILING TEMPERATURE OF THE WATER IN SAID VESSEL IN THE PROCESS CONDITIONS WHILE THE PRESSURE WHEREBY THE SOLVENT STILL PRESATMOSPHEREIC PRESSURE WHEREBY THE SOLVENT ISSTILL PRESENT IN THE POLYMER IS LESS THAN O.5% BY WEIGHT BASED ON THE POLYMER; (E) SUBJECTING THE SUSPENSION AT SUCH TEMPERATURE NEAR THE BOILING TEMPERATURE OF THE WATER TO A FILTRATION AND SEPARATING POLYMER CRUMBS AND HOT WATER AND RECYCLING SAID HOT WATER TO THE SOLVENT STILL PRESVESSEL UNTIL A POLYMER-WATER RATIO NOT HIGHER THAN 1/100 IS REACHED IN SAID SOLVENT-REMOVAL VESSEL.
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