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Two-part adhesive including toughened curative

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专利名称:Two-part adhesive including toughened

curative

发明人:Lianzhou Chen,Jay S. Schlechte,George S.

Stout,Rachel J. Squires

申请号:US1522申请日:20160201公开号:US103294B2公开日:20190625

摘要:A two-part adhesive is provided comprising: A) a curative part comprising: i) anepoxy curative; and ii) a reaction intermediate which is the reaction product of a

suspension of core/shell rubber nanoparticles in a liquid epoxy resin and an excess of theepoxy curative; wherein the curative part comprises greater than 1.1 wt % core/shellrubber nanoparticles; and B) an epoxy part comprising: iii) a liquid epoxy resin; and iv)greater than 9.1 wt % core/shell rubber nanoparticles. In some embodiments, the epoxypart additionally comprises greater than 5.1 wt % solid epoxy resin, such as, e.g.,

triglycidyl ether of trisphenol-methane. In some embodiments, the sum of the wt % solidepoxy resin and the wt % core/shell rubber nanoparticles in the epoxy part is greaterthan 41.0%. In some embodiments, the sum of the wt % solid epoxy resin and the wt %core/shell rubber nanoparticles in the mixed adhesive is greater than 26.0%.

申请人:3M INNOVATIVE PROPERTIES COMPANY

地址:St. Paul MN US

国籍:US

代理人:Philip P. Soo

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