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    • 3. 发明授权
    • Polyfunctional perhalogenated polyorganosiloxanes and the processes for their preparation
    • 多官能全卤代聚有机硅氧烷及其制备方法
    • US06197987B1
    • 2001-03-06
    • US09247099
    • 1999-02-09
    • Philippe JostPhilippe KarrerGérard MignaniPhilippe Olier
    • Philippe JostPhilippe KarrerGérard MignaniPhilippe Olier
    • C07F708
    • C08G77/382C08G77/385
    • The present invention relates to chemically stable, polyfunctional, perfluorinated polyorganosiloxanes (POS) comprising on the one hand fluorinated lateral grafts resulting from the hydrosilylation of perfluorinated olefins with SiH units and having alkyl and/or alkyl ester linkages but not ether linkages, and on the other hand other, non-perfluorinated functional units E capable of giving them diverse and varied physical and chemical properties and opening up avenues in numerous applications. Examples of these POS according to the invention are those of the following formula: According to another of its features, the invention relates to a process for the preparation of these polyfunctional perfluorinated POS. Applications: antifoams, agents for lowering surface tension, dirt repellents, antiadhesives, lubricants, oleophobic and/or hydrophobic agents, coatings etc.
    • 本发明涉及化学稳定的,多官能的全氟化聚有机硅氧烷(POS),其一方面包含由全氟化烯烃与SiH单元的氢化硅烷化并具有烷基和/或烷基酯键而不是醚键产生的氟化侧向接枝, 另一方面是其他非全氟化功能单元E,其能够给予它们多种多样的变化的物理和化学性质,并且在许多应用中开辟了途径。根据本发明的这些POS的实例是下式的那些:根据其另一个特征 本发明涉及制备这些多官能全氟化POS的方法。 应用:消泡剂,降低表面张力的试剂,防污剂,抗粘合剂,润滑剂,疏油和/或疏水剂,涂料等。
    • 5. 发明授权
    • Method for preparing a regenerated cellulose fibre or yarn
    • 制备再生纤维素纤维或纱线的方法
    • US06555678B1
    • 2003-04-29
    • US09530188
    • 2000-09-25
    • Christian AllandrieuLucile GambutPhilippe KarrerTies KarstensGerard MignaniArmin Stein
    • Christian AllandrieuLucile GambutPhilippe KarrerTies KarstensGerard MignaniArmin Stein
    • C08B1600
    • D01F2/24D01F2/00
    • A method has been developed for making regenerated cellulose yarn. The method includes the steps of spinning a solution derived from cellulose or a cellulose derivative in a molten state through at least one extrusion die, then regenerating the cellulose by treating the resulting yarn, wherein a silylated cellulose derivative is prepared by reaction with a silylating agent; the silylated cellulose is extracted from the synthesis reaction medium; then spun through at least an extrusion die; and the resultant yarn treated with a desilylation agent to regenerate the cellulose and a siloxane. The resulting cellulose yarns or fibers may be used for making woven or knitted textile surfaces or non-woven surfaces. Said yarns or fibers are also useful as reinforcing fibers in elastomeric materials and more particularly, in tires.
    • 已经开发了用于制备再生纤维素纱线的方法。 该方法包括以下步骤:通过至少一个挤出模头将来自纤维素或纤维素衍生物的溶液通过至少一个挤出模头纺丝,然后通过处理所得纱线再生纤维素,其中通过与甲硅烷基化试剂反应制备甲硅烷基化纤维素衍生物 ; 从合成反应介质中提取甲硅烷基化纤维素; 然后通过至少一个挤出模头旋转; 用脱甲基剂处理得到的纱线再生纤维素和硅氧烷。 所得到的纤维素纱线或纤维可用于制造机织或针织织物表面或无纺织物表面。 所述纱线或纤维也可用作弹性体材料中的增强纤维,更具体地,在轮胎中。