AQUEOUS EMULSION POLYMERIZATION PROCESS FOR PRODUCING FLUOROPOLYMERS
    22.
    发明申请
    AQUEOUS EMULSION POLYMERIZATION PROCESS FOR PRODUCING FLUOROPOLYMERS 审中-公开
    用于生产氟聚合物的水性乳液聚合方法

    公开(公告)号:US20080015304A1

    公开(公告)日:2008-01-17

    申请号:US11457239

    申请日:2006-07-13

    IPC分类号: D06M15/277

    CPC分类号: C08F2/24 C08F14/18

    摘要: The present invention provides a method of making a fluoropolymer comprising polymerizing one or more fluorinated monomers in an aqueous emulsion polymerization in the presence of a fluorinated surfactant selected from fluorinated surfactants of formula (I): [RfO-L-CO2−]iXi+   (I) wherein Rf is selected from a partially fluorinated alkyl group, a fully fluorinated alkyl group, a partially fluorinated alkyl group that is interrupted with one or more oxygen atoms, and a fully fluorinated alkyl group that is interrupted with one or more oxygen atoms; L is selected from a partially fluorinated alkylene group, a fully fluorinated alkylene group, a partially fluorinated alkylene group that is interrupted with one or more oxygen atoms, and a fully fluorinated alkylene group that is interrupted with one or more oxygen atoms; Xi+ represents a cation having the valence i; and i is 1, 2, or 3; further wherein at least part of the fluorinated surfactant is added to the aqueous phase as an aqueous mixture with at least one fluorinated liquid, and further wherein when the fluorinated surfactant is a perfluorinated polyethercarboxylic acid, the fluorinated liquid is not a perfluoropolyether.

    摘要翻译: 本发明提供一种制备含氟聚合物的方法,其包括在含氟表面活性剂存在下在水乳液聚合中聚合一种或多种氟化单体,所述氟化表面活性剂选自式(I)的氟化表面活性剂:<?in-line-formula description =“In 线公式“end =”lead“?> [R&lt;&lt; /&gt;&lt; /&gt; (I)<?in-line-formula description =“In-line Formulas”end =“tail”?>其中R f选自部分氟化烷基 基团,完全氟化的烷基,被一个或多个氧原子间隔的部分氟化的烷基和被一个或多个氧原子间隔的完全氟化的烷基; L选自部分氟化的亚烷基,完全氟化的亚烷基,被一个或多个氧原子间隔的部分氟化的亚烷基和被一个或多个氧原子间隔的完全氟化的亚烷基; X i + +表示具有i价的阳离子; 我是1,2或3; 其中至少部分氟化表面活性剂与至少一种氟化液体作为含水混合物加入到水相中,并且其中当氟化表面活性剂是全氟化聚醚羧酸时,氟化液体不是全氟聚醚。

    Dental Composition Containing a Surfactant and an F-Containing Compound, Process of Production and Use Thereof
    27.
    发明申请
    Dental Composition Containing a Surfactant and an F-Containing Compound, Process of Production and Use Thereof 有权
    含有表面活性剂和含F化合物的牙科用组合物,其制造及使用方法

    公开(公告)号:US20100292362A1

    公开(公告)日:2010-11-18

    申请号:US12747927

    申请日:2008-12-17

    IPC分类号: A61K6/10

    摘要: The invention relates to a curable dental composition comprising a) a curable organopolysiloxane polymer, b) a crosslinker compound capable of crosslinking said organopolysiloxane polymer, c) a catalyst capable of catalyzing a crosslinking reaction of component (A) and component (B), d) a surfactant, e) a F-containing compound, wherein the F-containing compound has the following formula: (G1-L1-O)s-Rfa-O-L2-G2 wherein: G1 and G2 each independently represents a non-ionic endgroup that is free of polyoxyalkylene groups or contains polyoxyalkylene such that the total amount thereof in the F-containing compound is not more than 10% by weight based on the molecular weight of the F-containing compound; L1 and L2 each independently represents an aliphatic hydrocarbon group or a partially or fully fluorinated aliphatic hydrocarbon group; Rfa represents a mono-valent or divalent partially or fully fluorinated aliphatic group or a partially or fully fluorinated aliphatic group interrupted by one or more oxygen atoms; with the proviso that at least one of the following conditions is fulfilled: (i) at least one of the moieties L1-G1 and L2-G2 is partially or fully fluorinated or (ii) Rf is a partially or fully fluorinated aliphatic group interrupted by one or more oxygen atoms. The invention also relates to a kit of parts and a method of producing a dental composition as well as the use of the dental composition for the preparation of or as impression material or for the preparation of crowns and bridges.

    摘要翻译: 本发明涉及一种可固化牙科用组合物,其包含a)可固化的有机基聚硅氧烷聚合物,b)能够交联所述有机聚硅氧烷聚合物的交联剂化合物,c)能够催化组分(A)和组分(B)的交联反应的催化剂,d )表面活性剂,e)含F化合物,其中所述含F化合物具有下式:(G1-L1-O)s-Rfa-O-L2-G2其中:G1和G2各自独立地表示非 - 不含聚氧化烯基团或含有聚氧化烯的离子性端基,使得其含氟化合物的总量相对于含F化合物的分子量为10重量%以下; L1和L2各自独立地表示脂族烃基或部分或完全氟化的脂族烃基; Rfa表示被一个或多个氧原子间隔的一价或二价部分或完全氟化的脂族基团或部分或全部氟化脂族基团; 条件是满足以下条件中的至少一个:(i)部分L1-G1和L2-G2中的至少一个部分或完全氟化,或(ii)Rf是部分或完全氟化的脂族基团,被 一个或多个氧原子。 本发明还涉及一种用于制备牙科用组合物的试剂盒和牙科用组合物的制备方法,或用作制备印模材料或用于制备牙冠和牙桥的牙科用组合物。

    Dental retraction composition, method of production and use thereof

    公开(公告)号:US10548819B2

    公开(公告)日:2020-02-04

    申请号:US13375038

    申请日:2010-05-24

    IPC分类号: A61K6/10

    摘要: The invention features a composition which can or is to be used in a dental retraction, the composition comprising liquid a liquid and a layer type 1:1 silicate mineral and a layer type 2:1 silicate mineral in a ratio from about 50/50 to 5/95 wt.-% with respect to each other. The invention also relates to a container containing the dental retraction composition and to a kit comprising parts A and B, wherein part A comprises the dental retraction composition and part B comprises at least one accessory selected from the group of applier, dental impression material, retraction cap(s), a container for storing and dispensing the composition and combinations thereof. The invention further features a process of dispensing a dental retraction composition, the process comprising the steps: providing a dental retraction composition contained in a container, placing the container in an applier, and using the applier for dispensing the dental retraction composition out of the container.