公开(公告)号：US11884788B2

公开(公告)日：2024-01-30

申请号：US17433717

申请日：2020-02-21

Applicant: KURARAY CO., LTD.

Inventor： Toru Asada ,  Daisuke Koda ,  Shuhei Yorimitsu ,  Shinichi Takemoto ,  Hiroyuki Kawai

IPC: C08J5/24 ,  D06M15/693

CPC classification number: C08J5/246 ,  C08J5/249 ,  D06M15/693 ,  C08J2309/00

Abstract: Provided are reinforcing fibers using an adhesive component not containing resorcinol and formaldehyde, which are excellent in adhesiveness to rubber and which can be efficiently produced while preventing contamination of production facilities, and a method for producing them, as well as a molded article using them. The reinforcing fibers have an adhesive component that contains a conjugated diene rubber and an oil, in at least a part of the surfaces thereof, wherein the vapor pressure at 20° C. of the oil is 10 Pa or less.

公开(公告)号：US20250011552A1

公开(公告)日：2025-01-09

申请号：US18710015

申请日：2022-11-11

Applicant: KURARAY CO., LTD.

Inventor： Toru Asada ,  Eiichi Ishida ,  Yosuke Washitake

IPC: C08J5/06 ,  B60C1/00 ,  C08L9/02 ,  D06M15/55 ,  D06M15/564 ,  D06M15/693 ,  D06M101/24 ,  D06M101/32

Abstract: Provided are reinforcing fibers using an adhesive component that does not contain resorcin and formalin, particularly reinforcing fibers that are excellent in adhesiveness to a high-polar rubber adherend, a method for producing the same, and an elastomer product using the reinforcing fibers. Reinforcing fibers include an adhesive layer formed from an adhesive component containing a liquid conjugated diene-based rubber and a crosslinking agent on at least a part of a fiber surface, and a solubility parameter (SP value) of the liquid conjugated diene-based rubber that is calculated by a Fedors method is larger than 9.0 (cal/cm3)1/2.

公开(公告)号：US20250012007A1

公开(公告)日：2025-01-09

申请号：US18710045

申请日：2022-11-11

Applicant: KURARAY CO., LTD.

Inventor： Toru Asada ,  Eiichi Ishida ,  Yosuke Washitake

IPC: D06M15/693 ,  C08J5/24 ,  D06M15/55 ,  D06M15/564 ,  D06M101/24 ,  D06M101/32 ,  D06M101/34

Abstract: An aqueous adhesive using an adhesive component that does not contain resorcin and formalin, particularly an aqueous adhesive that is excellent in adhesiveness to fibers and an elastomer and can suppress process contamination in a process of producing reinforcing fibers, reinforcing fibers using the same, and an elastomer product using the reinforcing fibers are provided. An aqueous adhesive for adhesion between fibers and an elastomer includes: an oil-in-water emulsion (A) containing a liquid conjugated diene-based rubber and a surfactant, and an aqueous solution or aqueous dispersion (B) of a crosslinking agent.