公开(公告)号：US20220389284A1

公开(公告)日：2022-12-08

申请号：US17770145

申请日：2020-08-20

申请人： NITTO DENKO CORPORATION

发明人： Toru ISEKI ,  Masahito NIWA ,  Junji FUKUHARA ,  Ryosuke YOKOKAWA

IPC分类号： C09J7/38

摘要： Provided is a double-sided pressure-sensitive adhesive tape excellent in reworkability. A double-sided pressure-sensitive adhesive tape according to an embodiment of the present invention includes an acrylic pressure-sensitive adhesive, wherein the acrylic pressure-sensitive adhesive is formed from an acrylic pressure-sensitive adhesive composition, wherein the double-sided pressure-sensitive adhesive tape has a load at an elongation of 100% of 7 N/10 mm or less, and wherein the double-sided pressure-sensitive adhesive tape has a load at an elongation of 500% of 20 N/10 mm or less.

公开(公告)号：US20230071452A1

公开(公告)日：2023-03-09

申请号：US17792916

申请日：2020-08-20

申请人： NITTO DENKO CORPORATION

发明人： Junji FUKUHARA ,  Masahito NIWA ,  Toru ISEKI ,  Ryosuke YOKOKAWA

IPC分类号： C09J7/38 ,  C09J7/24 ,  C09J133/08

摘要： A double-sided pressure-sensitive adhesive tape includes an acrylic pressure-sensitive adhesive, wherein the acrylic pressure-sensitive adhesive is formed from an acrylic pressure-sensitive adhesive composition, wherein the acrylic pressure-sensitive adhesive composition contains an acrylic partially polymerized product obtained by polymerizing a monomer component (m1), a monomer component (m2), a cross-linking agent, and a photopolymerization initiator, wherein the monomer component (m2) contains an alkyl (meth)acrylate having, at an ester terminal thereof, an alkyl group having 4 to 10 carbon atoms, and a polymerizable monomer whose corresponding homopolymer has a Tg of 0° C. or more, wherein in the monomer component (m2), a content of the polymerizable monomer whose corresponding homopolymer has a Tg of 0° C. or more is from 10 parts by weight to 90 parts by weight with respect to 100 parts by weight of the alkyl (meth)acrylate having, at an ester terminal thereof, an alkyl group having 4 to 10 carbon atoms.

公开(公告)号：US20220389283A1

公开(公告)日：2022-12-08

申请号：US17770133

申请日：2020-08-20

申请人： NITTO DENKO CORPORATION

发明人： Toru ISEKI ,  Masahito NIWA ,  Junji FUKUHARA ,  Ryosuke YOKOKAWA

IPC分类号： C09J7/38 ,  C09J4/00 ,  C09J133/08

摘要： A double-sided pressure-sensitive adhesive includes an acrylic pressure-sensitive adhesive, wherein the acrylic pressure-sensitive adhesive is formed from an acrylic pressure-sensitive adhesive composition, wherein the acrylic pressure-sensitive adhesive composition contains an acrylic partially polymerized product obtained by polymerizing a monomer component (m1), a monomer component (m2), a cross-linking agent, and a photopolymerization initiator, wherein the monomer component (m2) contains an alkyl (meth)acrylate having, at an ester terminal thereof, an alkyl group having 4 to 10 carbon atoms, and a polymerizable monomer whose corresponding homopolymer has a Tg of 0° C. or more, and wherein in the monomer component (m2), a content of the polymerizable monomer whose corresponding homopolymer has a Tg of 0° C. or more is from 10 parts by weight to 90 parts by weight with respect to 100 parts by weight of the alkyl (meth)acrylate having, at an ester terminal thereof, an alkyl group having 4 to 10 carbon atoms.