PROCESS FOR PREPARING POLYOXYMETHYLENE
    6.
    发明申请
    PROCESS FOR PREPARING POLYOXYMETHYLENE 有权
    制备聚氧乙烯的方法

    公开(公告)号:US20160115270A1

    公开(公告)日:2016-04-28

    申请号:US14894158

    申请日:2014-05-26

    Applicant: BASF SE

    Abstract: The patent application relates to a process for preparing polyoxymethylene by polymerization of a reaction mixture (RG) which comprises at least one formaldehyde source and at least one initiator mixture (IG), wherein the initiator mixture (IG) comprises at least one polymerization initiator and at least one solvent of the general formula (I) R1—O—[—R3—O—]m—R2  (I), where m is 1, 2, 3 or 4; R1 and R2 are each, independently of one another, C3-C6-alkyl; R3 is C1-C5-alkylene.

    Abstract translation: 该专利申请涉及通过聚合包含至少一种甲醛源和至少一种引发剂混合物(IG)的反应混合物(RG)来制备聚甲醛的方法,其中引发剂混合物(IG)包含至少一种聚合引发剂和 至少一种通式(I)R 1 -O - [ - R 3 -O-] m -R 2(I)的溶剂,其中m为1,2,3或4; R 1和R 2各自独立地为C 3 -C 6 - 烷基; R3是C1-C5-亚烷基。

    (ETHYLENE, VINYL ACETAL) COPOLYMERS AND THEIR USE IN LITHOGRAPHIC PRINTING PLATE PRECURSORS
    9.
    发明申请
    (ETHYLENE, VINYL ACETAL) COPOLYMERS AND THEIR USE IN LITHOGRAPHIC PRINTING PLATE PRECURSORS 有权
    (乙烯,乙烯基乙烯)共聚物及其在平版印刷版前驱体中的应用

    公开(公告)号:US20150315326A1

    公开(公告)日:2015-11-05

    申请号:US14654644

    申请日:2013-12-03

    Abstract: A copolymer includes (i) a plurality of ethylenic moieties A having a structure according to the following formula: wherein R2 and R3 independently represent hydrogen, a halogen, or an optionally substituted linear, branched, or cyclic alk(en)yl group, or an optionally substituted aromatic or heteroaromatic, and (ii) a plurality of acetal moieties B having a structure according to the following formula: wherein L represents a divalent linking group; x=0 or 1; and R1 represents an optionally substituted aromatic or heteroaromatic group including at least one hydroxyl group. Use of these polymers in the coating of lithographic printing plates provides a good abrasion resistance while the balance between the ink acceptance, arising from the ethylenic moieties, and the solubility in an alkaline developer, arising form the acetal moieties, can be controlled efficiently.

    Abstract translation: 共聚物包括(i)具有根据下式的结构的多个烯属部分A:其中R2和R3独立地表示氢,卤素或任选取代的直链,支链或环烷基(烯)基,或 任选取代的芳族或杂芳族,和(ii)具有根据下式的结构的多个缩醛部分B:其中L表示二价连接基团; x = 0或1; 并且R 1表示任选取代的包含至少一个羟基的芳族或杂芳族基团。 在平版印刷版的涂层中使用这些聚合物提供良好的耐磨性,而可以有效地控制从乙烯部分产生的油墨接受与由缩醛部分产生的在碱性显影剂中的溶解度之间的平衡。

    METHOD OF FORMING POLYARYL POLYMERS
    10.
    发明申请
    METHOD OF FORMING POLYARYL POLYMERS 有权
    形成聚合物聚合物的方法

    公开(公告)号:US20150031847A1

    公开(公告)日:2015-01-29

    申请号:US13943196

    申请日:2013-07-16

    Inventor: Matthias S. OBER

    Abstract: In a method of forming a polyacetal or polyketal, a specific acetal- or ketal-containing bis(aryl)acetal is coupled with itself or a comonomer in the presence of a catalyst and a base. The polymerization reaction tolerates hydroxyl and other functional groups on the bis(aryl)acetal. Among other applications, the polyacetals and polyketals are useful components of photoresist compositions.

    Abstract translation: 在形成聚缩醛或聚缩酮的方法中,在催化剂和碱的存在下,具有缩醛或缩酮的双(芳基)缩醛与其自身或共聚单体偶联。 聚合反应容忍双(芳基)缩醛上的羟基和其它官能团。 在其它应用中,聚缩醛和聚缩酮是光致抗蚀剂组合物的有用组分。

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