公开(公告)号：US20230212383A1

公开(公告)日：2023-07-06

申请号：US17688096

申请日：2022-03-07

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Yi-Ting WEI ,  Jyh-Horng WU ,  Yao-Zu WU ,  Ming-Tsong LEU ,  You-Shan CAI

IPC: C08L51/04 ,  C08J11/28

CPC classification number: C08L51/04 ,  C08J11/28 ,  C08J2325/10 ,  C08L2207/20

Abstract: A reclaiming agent is formed by grafting thiol groups onto styrene-butadiene rubber (SBR). The reclaiming agent has a weight average molecular weight of 1000 to 120000, which can be a random copolymer or a block copolymer. 100 parts by weight of styrene-butadiene rubber can be reacted with 0.1 to 50 parts by weight of the reclaiming agent to form a reclaimed rubber.

公开(公告)号：US20220204656A1

公开(公告)日：2022-06-30

申请号：US17135344

申请日：2020-12-28

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Yi-Ting WEI ,  Jyh-Horng WU ,  Yao-Zu WU ,  Ming-Tsong LEU

IPC: C08C19/08 ,  C08C19/30 ,  C08F236/14

Abstract: A depolymerizer is formed by grafting thiol groups on parts of the double bonds of a polymer of linear conjugated diene monomer. The linear conjugated diene monomer can be 1,3-butadiene, isoprene, 1,3-pentadiene, 2,3-dimethyl-1,3-butadiene, 2-methyl-1,3-pentadiene, 2,3-dimethyl-1,3-pentadiene, 2-phenyl-1,3-butadiene, or 4,5-diethyl-1,3-octadiene. The depolymerizer has a weight average molecular weight of 1000 to 400000.

公开(公告)号：US20210147584A1

公开(公告)日：2021-05-20

申请号：US16718487

申请日：2019-12-18

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Yi-Ting WEI ,  Jyh-Horng WU ,  Yao-Zu WU ,  Ming-Tsong LEU

IPC: C08C19/08 ,  C08J11/06 ,  C08L53/00 ,  C08L25/10 ,  C08C19/30 ,  C08L47/00 ,  C08L17/00

Abstract: Recycled rubber is provided, which is formed by depolymerizing 100 parts by weight of rubber and 0.5 to 10 parts by weight of modifier, wherein the modifier is formed by reacting (a) R1-M, (b) double bond monomer, (c) ethylene sulfide, and (d) polymerization terminator, wherein R1 is C4-C16 alkyl group, M is Li, Na, K, Ba, or Mg and (b) double bond monomer is 1,3-butadiene, isoprene, 1,3-pentadiene, 2,3-dimethyl-1,3-butadiene, 2-methyl-1,3-pentadiene, 2,3-dimethyl-1,3-pentadiene, 2-phenyl-1,3-butadiene, 4,5-diethyl-1,3-octadiene, styrene, 1-ethylene naphthalene, 3-methylstyrene, 3,5-diethylstyrene, 4-propylstyrene, 2,4,6-trimethylstyrene, 4-dodecylstyrene, 3-methyl-5-n-hexylstyrene, 4-phenylstyrene, 2-ethyl-4-benzylstyrene, 3,5-diphenylstyrene, 2,3,4,5-tetraethyl styrene, 3-ethyl-1-vinylnaphthalene, 6-isopropyl-1-vinylnaphthalene, 6-cyclohexyl-1-vinylnaphthalene, 7-dodecyl-2-vinylnaphthalene, α-methyl styrene, or a combination thereof.