PREPARATION METHOD FOR ARYL-SUBSTITUTED P-PHENYLENEDIAMINE SUBSTANCE

    公开(公告)号:EP3366666A1

    公开(公告)日:2018-08-29

    申请号:EP16856546.3

    申请日:2016-01-11

    Abstract: A preparation method for an aryl substituted p-phenylenediamine substance is provided. A structural formula of the aryl substituted p-phenylenediamine substance is shown as Formula (I'), where R" is phenyl or o-methylphenyl, and R' is the same as or different from R"; and the preparation method comprises that: a raw material A and a raw material B are reacted in the presence of a hydrogen acceptor and a catalyst to form the aryl substituted p-phenylenediamine substance, the raw material A having a structure shown as Formula (I), the raw material B being cyclohexanone and/or o-methylcyclohexanone and the hydrogen acceptor being a hydrogen acceptor capable of accepting hydrogen for conversion into the raw material B. The raw materials are low in cost and readily available, and use of a large amount of water for posttreatment of reaction is avoided. A reaction condition is relatively mild, and corrosion to reaction equipment is avoided.

    PREPARATION METHOD OF 2-MERCAPTOBENZOTHIAZOLE

    公开(公告)号:EP3360867A1

    公开(公告)日:2018-08-15

    申请号:EP15905712.4

    申请日:2015-11-02

    Abstract: The disclosure discloses a preparation method for 2-mercaptobenzothiazole. An aniline method is adopted to perform reaction in the presence of a catalyst to prepare the 2-mercaptobenzothiazole, and the catalyst includes sulfonic acid type imidazolium ionic liquid. The sulfonic acid type imidazolium ionic liquid is a type of acidic functionalized ionic liquid, and has the advantages of both a solid acid and a liquid acid. The sulfonic acid type imidazolium ionic liquid is adopted as an active ingredient of the catalyst, and may remarkably improve a conversion rate of the reaction raw materials and increase a yield of the 2-mercaptobenzothiazole. Meanwhile, due to the characteristics of high catalytic activity, no volatilization, low corrosion, high thermal stability and the like of the 2-mercaptobenzothiazole, the preparation method also has the comprehensive advantages of simple process, low cost, low tar yield, high environment friendliness and the like.

    Compound having anti-aging and discoloration resistance effects and preparation method therefor

    公开(公告)号:IL292560B1

    公开(公告)日:2025-03-01

    申请号:IL29256022

    申请日:2022-04-27

    Applicant: SENNICS CO LTD

    Abstract: Provided are a compound having anti-aging and discoloration resistance effects and a preparation method therefor. The compound has the structure represented by formula (I) below, wherein R, R 1 and R 2 are as defined herein. Compared with existing anti-aging agent products, the described compound has longer-lasting anti-aging performance, and has discoloration resistance. Moreover, the compound can be used as an anti-aging agent in rubber products, especially rubber tires, and can prevent the aging and deterioration of rubber products or rubber tires due to light, heat, oxygen, fatigue, and so on during use.

    Novel and long-acting rubber anti-degradant and rubber composition comprising the same for tires

    公开(公告)号:AU2019285766B2

    公开(公告)日:2024-04-04

    申请号:AU2019285766

    申请日:2019-05-31

    Applicant: SENNICS CO LTD

    Inventor: GAO YANG ZOU BIAO

    Abstract: Novel and long-acting rubber anti-degradant and rubber composition comprising the same for tires. The anti-degradant comprises at least two compounds, each of which is selected from a compound of Formula I, II, III-a, or III-b: and each of the compounds have different formulae from others, and can't be compounds of formula III-a and III-b at the same time when the anti-degradant consists of only 2 compounds. The anti-degradant is used to provide a rubber composition with improved long-term resistance to thermo-oxidative aging and ozone aging.

    Antidegradante de borracha de ação prolongada e composição de borracha compreendendo o mesmo para pneus

    公开(公告)号:BR112020024911B1

    公开(公告)日:2023-12-26

    申请号:BR112020024911

    申请日:2019-05-31

    Applicant: SENNICS CO LTD

    Inventor: ZOU BIAO GAO YANG

    Abstract: a presente invenção refere-se a um novo antidegradante de borracha de ação prolongada e a uma composição de borracha compreendendo o mesmo para pneus. o antidegradante compreende pelo menos dois compostos, cada um dos quais é selecionado a partir de um composto de fórmula i, ii, iii-a ou iii-b: i ii iii-a iii-b e cada um dos compostos tem fórmulas diferentes uns dos outros, e não podem ser compostos de fórmula iii-a e iii-b ao mesmo tempo quando o antidegradante consiste em apenas 2 compostos. o antidegradante é usado para fornecer uma composição de borracha com resistência aprimorada de longo prazo ao envelhecimento termo-oxidativo e ao envelhecimento devido ao ozônio.

    Compound having anti-aging and discoloration resistance effects and preparation method therefor

    公开(公告)号:IL292560D0

    公开(公告)日:2022-06-01

    申请号:IL29256022

    申请日:2022-04-27

    Applicant: SENNICS CO LTD

    Abstract: Provided are a compound having anti-aging and discoloration resistance effects and a preparation method therefor. The compound has the structure represented by formula (I) below, wherein R, R1 and R2 are as defined herein. Compared with existing anti-aging agent products, the described compound has longer-lasting anti-aging performance, and has discoloration resistance. Moreover, the compound can be used as an anti-aging agent in rubber products, especially rubber tires, and can prevent the aging and deterioration of rubber products or rubber tires due to light, heat, oxygen, fatigue, and so on during use.

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