Structural adhesive sheet specifically for use in a mirror base of an automobile interior rear-view mirror and a method for producing the same
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United States of America Patent
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Feb 21, 2017
Grant Date -
Oct 30, 2014
app pub date -
Nov 9, 2012
filing date -
Nov 10, 2011
priority date (Note) -
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Abstract
The present invention provides a structural adhesive sheet specifically for use in a mirror base of an automobile interior rear-view mirror and a method for producing the same, said structural adhesive sheet comprises in parts by weight of 20-100 parts of a nitrile-butadiene rubber, 10-70 parts of a partially cured polysulfide adhesive, 5-40 parts of a bisphenol A type epoxy resin, 0.1-2.5 parts of a crosslinking agent, 0.2-2.5 parts of a softening agent, 3-20 parts of a curing agent, 1-10 parts of an accelerator, 20-100 parts of an inorganic filler, and 0.1-3.0 parts of a silane coupling agent. The structural adhesive sheet of the present invention is obtained by subjecting the above-mentioned components to a compounding process and an extrusion film forming process. The advantages of said structural adhesive sheet include good film-forming property, and simple curing process, while having high structural strength, good toughness, and excellent heat-resistance and cold-resistance after cured.
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