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OwnerHiraku Miyashita, Masateru Fukuoka +5inventors
InventorsHiraku Miyashita, Masateru Fukuoka, Hajime Nosetani, Hidemi Matsunaga, Masatoshi Yoshida, Nobuhiro Kobayashi, Koji Kahara
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An acrylic hot melt pressure-sensitive adhesive, for use in a protective film, is disclosed which can be produced by free-radical polymerization, which exhibits the improved low temperature tackiness and weather resistance, and which shows good peel adhesion to adherends regardless of their types. The acrylic hot melt pressure-sensitive adhesive contains a block copolymer comprising a polyvalent mercaptan core, first and second acrylic polymer segments different in composition from each other and radially extending from the mercaptan core. Both or one of the first and second polymer segments is copolymerized with an olefinic macromonomer.
An acrylic hot melt pressure-sensitive adhesive containing a block copolymer comprising a polyvalent mercaptan core, first and second acrylic polymer segments different in composition from each other and radially extending from the mercaptan core, both or one of said first and second polymer segments being copolymerized with an olefinic macromonomer.
A protective film including:
Dependencies are inferred from the claim text.