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    Radiation-crosslinkable elastomers and photocrosslinkers therefor
    4.
    发明授权
    Radiation-crosslinkable elastomers and photocrosslinkers therefor 失效
    可辐射交联的弹性体和光交联剂

    公开(公告)号：US06369123B1

    公开(公告)日：2002-04-09

    申请号：US08514677

    申请日：1995-08-14

    申请人： Peter A. Stark ,  Edward G. Stewart ,  Albert I. Everaerts

    发明人： Peter A. Stark ,  Edward G. Stewart ,  Albert I. Everaerts

    IPC分类号： C08J328

    CPC分类号： C08K5/3492 ,  C08K5/0025 ,  C08K5/5399 ,  C08L21/00

    摘要： Radiation-crosslinkable elastomeric compositions containing: (a) an elastomeric polymer containing abstractable hydrogen atoms in an amount sufficient to enable the elastomeric polymer to undergo crosslinking in the presence of a suitable radiation-activatable crosslinking agent; and (b) a radiation-activatable crosslinking agent of the formula: wherein: X represents CH3—; phenyl; or substituted-phenyl; or substituted-phenyl with the proviso that any substituents on the substituted-phenyl do not interfere with the light-absorbing capacity of the radiation-activatable crosslinking agent and do not promote intramolecular hydrogen abstraction of the radiation activatable crosslinking agent; W represents —O—, —NH—, or —S—; Z represents an organic spacer selected from the group consisting of aliphatic, aromatic, aralkyl, heteroaromatic, and cycloaliphatic groups free of esters, amides, ketones, urethanes, and also free of ethers, thiols, allylic groups; and benzylic groups with hydrogen atoms intramolecularly accessible to the carbonyl group(s) present in the radiation-activatable crosslinking agent; and n represents an integer of 2 or greater. Further disclosed are novel photocrosslinkers based upon 2,4,6-tri(4-benzoylphenoxy)-1,3,5-triazines.

    摘要翻译： 该辐射交联弹性体组合物含有：（a）弹性体聚合物，其含有足以使弹性聚合物在合适的可辐射活化的交联剂存在下进行交联的可抽出的氢原子; 和（b）下式的可辐射活化的交联剂：其中：X表示CH 3 - ; 苯基; 或取代的苯基; 或取代的苯基，条件是取代的苯基上的任何取代基不干扰可辐射活化的交联剂的光吸收能力，并且不促进可辐射活化的交联剂的分子内氢提取; W表示-O- ，-NH-或-S-; Z表示选自脂族，芳族，芳烷基，杂芳族和脂环族基团的有机间隔基，不含酯，酰胺，酮，氨基甲酸酯，并且也不含醚，硫醇， 烯丙基; 和在可辐射活化的交联剂中存在的羰基分子内可接触的氢原子的苄基; n表示2以上的整数。 还公开了基于2,4,6-三（4-苯甲酰基苯氧基）-1,3,5-三嗪的新型光交联剂。