公开(公告)号：US11130884B2

公开(公告)日：2021-09-28

申请号：US16405357

申请日：2019-05-07

Applicant: KANEKA CORPORATION

Inventor： Hidenori Tanaka

IPC: C09J4/06 ,  C09J133/08 ,  C09J133/00 ,  C09J11/06

Abstract: An adhesive composition may include 100 parts by weight of a (meth)acrylic polymer (A), 45 to 65 parts by weight of isoboronyl acrylate (B), and 0.1 to 10 parts by weight of a photoradical polymerization initiator (C). Each molecule of the (meth)acrylic polymer (A) may have at least one group represented by the general formula (1) at a molecular terminal: —OC(O)C(R1)═CH2 (1), where R1 is a hydrogen atom or an organic group containing 1 to 20 carbon atoms. The (meth)acrylic polymer (A) may have a number average molecular weight (Mn) of 3,000 to 100,000, and a ratio (Mw/Mn) of a weight average molecular weight (Mw) to a number average molecular weight (Mn) of less than 1.8.

公开(公告)号：US20190256744A1

公开(公告)日：2019-08-22

申请号：US16405357

申请日：2019-05-07

Applicant: KANEKA CORPORATION

Inventor： Hidenori Tanaka

IPC: C09J4/06 ,  C09J133/08

Abstract: An adhesive composition may include 100 parts by weight of a (meth)acrylic polymer (A), 45 to 65 parts by weight of isoboronyl acrylate (B), and 0.1 to 10 parts by weight of a photoradical polymerization initiator (C). Each molecule of the (meth)acrylic polymer (A) may have at least one group represented by the general formula (1) at a molecular terminal: —OC(O)C(R1)=CH2 (1), where R1 is a hydrogen atom or an organic group containing 1 to 20 carbon atoms. The (meth)acrylic polymer (A) may have a number average molecular weight (Mn) of 3,000 to 100,000, and a ratio (Mw/Mn) of a weight average molecular weight (Mw) to a number average molecular weight (Mn) of less than 1.8.

公开(公告)号：US20240101878A1

公开(公告)日：2024-03-28

申请号：US18274365

申请日：2022-01-21

Applicant: KANEKA CORPORATION

Inventor： Hidenori Tanaka

IPC: C09J171/02 ,  C09J11/06

CPC classification number: C09J171/02 ,  C09J11/06 ,  C09J2301/408 ,  C09J2471/00

Abstract: It is an object of the present invention to achieve an adhesive composition which enables provision of a cured product having excellent mechanical properties. In order to attain the foregoing object, an adhesive composition in accordance with an embodiment of the present invention contains: a polyoxypropylene-based polymer (A) which has, the terminal thereof, not less than 0.6 (meth)acryloyl groups on average and which has a number average molecular weight of not less than 5,000; a methacrylate compound (B) having a glass transition temperature of higher than 60° C. in a state of a homopolymer; an organic peroxide (C); and a reducing agent (D).