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    • 2. 发明授权
    • Process for the preparation of 1,3,3,3-tetrafluoropropene and/or 2,3,3,3-tetrafluoropropene
    • 制备1,3,3,3-四氟丙烯和/或2,3,3,3-四氟丙烯的方法
    • US07678949B2
    • 2010-03-16
    • US11988983
    • 2006-08-04
    • Velliyur Nott Mallikarjuna RaoH. David RosenfeldAllen Capron SievertShekhar Subramoney
    • Velliyur Nott Mallikarjuna RaoH. David RosenfeldAllen Capron SievertShekhar Subramoney
    • C07C17/00
    • C07C21/18B01J23/868B01J37/26C07C17/21C07C17/23C07C17/25C07C19/10
    • A process for the manufacture of CF3CH═CHF and/or CF3CF═CH2 is disclosed. The process involves (a) reacting HF and chlorine and at least one halopropene of the formula CX3CCI═CCIX (where each X is independently F or Cl) to produce a product including both CF3CCI2CCIF2 and CF3CCIFCCI2F; (b) reacting CF3CCI2CCIF2 and CF3CCIFCCI2F produced in (a) with hydrogen to produce a product including both CF3CH2CHF2 and CF3CHFCH2F; (c) dehydrofluorinating CF3CH2CHF2 and CF3CHFCH2F produced in (b) to produce a product including both CF3CH═CHF and CF3CF═CH2; and (d) recovering CF3CH═CHF and/or CF3CF═CH2 from the product produced in (c). In (a), both CF3CCI2CCIF2 and CF3CCIFCCI2F are produced in the presence of a chlorofluorination catalyst consisting of (i) compositions comprising a crystalline alpha-chromium oxide where at least 0.05 atom % of the chromium atoms in the alpha-chromium oxide lattice are replaced by copper, and (ii) compositions of (i) which have been treated with a fluorinating agent.
    • 公开了制造CF 3 CH = CHF和/或CF 3 CF = CH 2的方法。 该方法包括(a)使HF和氯与至少一种式CX3CCI = CCIX的卤代丙烯(其中每个X独立地为F或Cl)反应以产生包含CF 3 CCl 2 CCIF 2和CF 3 CClFCCI 2 F的产物; (b)使(a)中制备的CF 3 CCl 2 CCIF 2和CF 3 CClFCCI 2 F与氢反应以产生包含CF 3 CH 2 CHF 2和CF 3 CHFCH 2 F的产物; (c)在(b)中制备的CF 3 CH 2 CHF 2和CF 3 CHFCH 2 F脱氟化氟化产生包括CF 3 CH = CHF和CF 3 CF = CH 2的产物; 和(d)从(c)中制备的产物中回收CF 3 CH = CHF和/或CF 3CF≡CH2。 在(a)中,CF3CCI2CCIF2和CF3CCIFCCI2F都是在氯氟化催化剂存在下制备的,所述氯氟化催化剂由(i)包含结晶α-氧化铬的组合物组成,其中至少0.05原子%的α-氧化铬晶格中的铬原子被替换 和(ii)已经用氟化剂处理的(i)的组合物。
    • 5. 发明申请
    • Process for the preparation of 1,3,3,3-tetrafluoropropene and/or 2,3,3,3-tetrafluoropropene
    • 制备1,3,3,3-四氟丙烯和/或2,3,3,3-四氟丙烯的方法
    • US20090118554A1
    • 2009-05-07
    • US11988983
    • 2006-08-04
    • Velliyur Nott Mallikarjuna RaoH. David RosenfeldAllen Capron SievertShekhar Subramoney
    • Velliyur Nott Mallikarjuna RaoH. David RosenfeldAllen Capron SievertShekhar Subramoney
    • C07C17/21
    • C07C21/18B01J23/868B01J37/26C07C17/21C07C17/23C07C17/25C07C19/10
    • A process for the manufacture of CF3CH═CHF and/or CF3CF═CH2 is disclosed. The process involves (a) reacting HF and chlorine and at least one halopropene of the formula CX3CCI═CCIX (where each X is independently F or Cl) to produce a product including both CF3CCI2CCIF2 and CF3CCIFCCI2F; (b) reacting CF3CCI2CCIF2 and CF3CCIFCCI2F produced in (a) with hydrogen to produce a product including both CF3CH2CHF2 and CF3CHFCH2F; (c) dehydrofluorinating CF3CH2CHF2 and CF3CHFCH2F produced in (b) to produce a product including both CF3CH═CHF and CF3CF═CH2; and (d) recovering CF3CH═CHF and/or CF3CF═CH2 from the product produced in (c). In (a), both CF3CCI2CCIF2 and CF3CCIFCCI2F are produced in the presence of a chlorofluorination catalyst consisting of (i) compositions comprising a crystalline alpha-chromium oxide where at least 0.05 atom % of the chromium atoms in the alpha-chromium oxide lattice are replaced by copper, and (ii) compositions of (i) which have been treated with a fluorinating agent.
    • 公开了制备CF 3 CH-CHF和/或CF 3 CF-CH 2的方法。 该方法包括(a)使HF和氯以及至少一种式CX3CCI-CCIX(其中每个X独立地为F或Cl)的卤代丙烯反应,以产生包含CF 3 CCl 2 CCIF 2和CF 3 CClFCCI 2 F的产物; (b)使(a)中制备的CF 3 CCl 2 CCIF 2和CF 3 CClFCCI 2 F与氢反应以产生包含CF 3 CH 2 CHF 2和CF 3 CHFCH 2 F的产物; (c)在(b)中制备的CF 3 CH 2 CHF 2和CF 3 CHFCH 2 F脱氟化氢,制得包含CF 3 CH-CHF和CF 3 CF-CH 2的产物; 和(d)从(c)中制备的产物中回收CF 3 CH-CHF和/或CF 3 CF-CH 2。 在(a)中,CF3CCI2CCIF2和CF3CCIFCCI2F都是在氯氟化催化剂存在下制备的,所述氯氟化催化剂由(i)包含α-氧化铬晶格中的至少0.05原子%的铬原子的结晶α-氧化铬的组合物组成 和(ii)已经用氟化剂处理的(i)的组合物。
    • 9. 发明授权
    • Process of making poly (trimethylene dicarboxylate) fibers
    • 制备聚(三亚甲基二羧酸酯)纤维的方法
    • US06923925B2
    • 2005-08-02
    • US10183710
    • 2002-06-27
    • Jing C. ChangJoseph V. KurianShekhar Subramoney
    • Jing C. ChangJoseph V. KurianShekhar Subramoney
    • D01F6/62D01F6/92D03D15/00D01D5/34D01F8/14D02G1/02D02G3/02D02G3/24
    • D01F6/92Y10T428/2929Y10T428/2964
    • A process for preparing poly(trimethylene dicarboxylate) multifilament yarns and monofilaments. One process for preparing poly(trimethylene dicarboxylate) multifilament yarns includes (a) providing a polymer blend including poly(trimethylene dicarboxylate) and about 0.1 to about 10 weight % styrene polymer, by weight of the polymer in the polymer blend, (b) spinning the polymer blend to form poly(trimethylene dicarboxylate) multiconstituent filaments containing dispersed styrene polymer, and (c) processing the multiconstituent filaments into poly(trimethylene dicarboxylate) multifilament yarn including poly(trimethylene dicarboxylate) multiconstituent filaments containing styrene polymer dispersed throughout the filaments. Another process includes spinning at a speed of at least 3,000 m/m and processing a blend including poly(trimethylene dicarboxylate) to form partially oriented poly(trimethylene dicarboxylate) multifilament yarn. A poly(trimethylene terephthalate) yarn including poly(trimethylene terephthalate) multiconstituent filament containing styrene polymer dispersed throughout the multiconstituent filament. The invention is also directed to uses of the filament yarns and monofilament.
    • 制备聚(三亚甲基二羧酸酯)复丝纱和单丝的方法。 一种制备聚(三亚甲基二羧酸酯)复丝纱线的方法包括(a)按聚合物共混物中聚合物的重量计提供包含聚(三亚甲基二羧酸酯)和约0.1至约10重量%苯乙烯聚合物的聚合物共混物,(b)纺丝 聚合物共混物以形成含有分散的苯乙烯聚合物的聚(三亚甲基二羧酸酯)多构成长丝,和(c)将多成分长丝加工成聚(三亚甲基二羧酸酯)复丝纱,其包含分散在整个长丝中的聚苯乙烯聚合物的聚(三亚甲基二羧酸酯)多取向丝。 另一种方法包括以至少3,000m / m的速度纺丝并加工包括聚(三亚甲基二羧酸酯)的共混物以形成部分取向的聚(三亚甲基二羧酸酯)复丝纱线。 聚对苯二甲酸丙二醇酯聚对苯二甲酸乙二醇酯纱线,其包含聚苯乙烯聚合物分散在整个多成分丝中的聚(对苯二甲酸丙二醇酯)多取向丝。 本发明还涉及长丝纱和单丝的用途。