公开(公告)号：US20230066422A1

公开(公告)日：2023-03-02

申请号：US17796809

申请日：2021-02-11

Applicant: SIKA TECHNOLOGY AG

Inventor： Shunsuke YAMADA

IPC: C08J9/00 ,  C08K5/00 ,  C01B32/20

Abstract: The invention is directed to a thermally expandable composition comprising at least one solid rubber, at least on tackifying resin, a vulcanization system, and a thermally expandable graphite. The invention is also directed to a welding sealer tape comprising a substrate layer composed of the thermally expandable composition, to a method for providing sealing, structural adhesion, baffling, or combination thereof to a structure of a manufactured article, to a baffle and/or reinforcing element comprising the thermally expandable composition, to a method for sealing, baffling and/or reinforcing a cavity or a hollow structure, and to use of a thermally expandable graphite as a blowing agent in a thermally expandable material.

公开(公告)号：US20230097570A1

公开(公告)日：2023-03-30

申请号：US17801476

申请日：2021-03-15

Applicant: SIKA TECHNOLOGY AG

Inventor： Shunsuke YAMADA ,  Satoshi URAYAMA

IPC: C08K13/04 ,  C08J9/00 ,  C08J9/32

Abstract: A one-component thermosetting epoxy resin composition includes at least one epoxy resin A having on average more than one epoxide group per molecule, at least one latent hardener B for epoxy resins, at least one impact modifier D, at least one physical or chemical blowing agent E and fibrous anhydrous magnesium oxysulfate MOS. Thermally expandable epoxy resin compositions have improved adhesion, especially on metal substrates.

公开(公告)号：US20220227955A1

公开(公告)日：2022-07-21

申请号：US17618119

申请日：2020-06-12

Applicant: SIKA TECHNOLOGY AG

Inventor： Nicolae BORDEANU ,  Shunsuke YAMADA ,  Dusko PARIPOVIC

IPC: C08J9/10 ,  C08J9/00

Abstract: A thermally expandable composition comprising a thermoplastic polymer compound and/or an elastomer compound, at least one blowing agent including at least one dicarboxylic acid salt of an aminoguanidine compound, optionally at least one free radical initiator and/or a vulcanization system, and at least one guanidine derivative. The invention is also related to baffle and/or a reinforcement element for hollow structures including the thermally expandable composition, to a process for manufacturing the baffle and/or reinforcement element, to use of the baffle and/or reinforcement element for sealing, baffling, or reinforcing of a cavity or a hollow structure, and to a method for sealing, baffling and/or reinforcing a cavity or hollow structure.

公开(公告)号：US20220154048A1

公开(公告)日：2022-05-19

申请号：US17439040

申请日：2020-03-16

Applicant: SIKA TECHNOLOGY AG

Inventor： Satoshi URAYAMA ,  Shunsuke YAMADA

IPC: C09J109/06 ,  C09J123/22 ,  C09J11/06 ,  C09J11/04 ,  C08K3/04 ,  C08K3/30

Abstract: A thermally expandable composition including at least one solid rubber R, at least on tackifying resin, at least one blowing agent, a vulcanization system, and 0.5-30 wt.-% of fibrous magnesium oxysulphate or carbon fibers or a mixture thereof. Also, a shaped article including a substrate layer composed of the thermally expandable composition, to a method for providing sealing, structural adhesion, baffling, or combination thereof to a structure of a manufactured article, and to use of fibrous magnesium oxysulphate or carbon fibers or a mixture thereof in a thermally expandable composition to improve sag resistance and/or flame resistance properties of said composition.