BIO-SOURCED CATIONIC HIGH CHARGE DENSITY POLYMER

    公开(公告)号:US20240279397A1

    公开(公告)日:2024-08-22

    申请号:US18565662

    申请日:2022-07-08

    申请人: SNF Group

    IPC分类号: C08G73/02 C04B20/02 C04B24/28

    摘要: A bio-sourced cationic polymer is obtained by reaction of epihalohydrin that is least partially renewable and non-fossil, and at least one compound of formula (R1)2N(CH2CH2NH)n(CH2CH2N(R2)2)m that is at least partially renewable and non-fossil. R1 and R2 are, independently of one another, a hydrogen atom H or an alkyl chain including 1 to 8 carbon atoms, n=0 to 3, m=0 or 1. When n=m=0, then a hydrogen atom H is covalently bound to the nitrogen atom N of the N(R1)2 group.

    POLYMER OF 2-ACRYLAMIDO-2-METHYLPROPANE SULFONIC ACID OR THE SALTS THEREOF

    公开(公告)号:US20230272129A1

    公开(公告)日:2023-08-31

    申请号:US18044926

    申请日:2021-08-19

    申请人: SNF Group

    IPC分类号: C08F20/58

    CPC分类号: C08F20/58

    摘要: The present invention relates to a polymer obtained at least from a quantity A of 2-acrylamido-2-methylpropane sulfonic acid, in acid and/or salified form, characterized in that the quantity A of 2-acrylamido-2-methylpropane sulfonic acid contains 250 to 20,000 ppm by weight of 2-methyl-2-propenyl-sulfonic acid, in acid and/or salified form. The present invention also relates to the use of this polymer as a flocculant, viscosity reducing agent, thickener, absorbent, friction reducing agent or plasticizer or superplasticizer, in particular in a field chosen from among oil and gas recovery, water treatment, sludge treatment, paper manufacture, construction, mining, cosmetic product formulation, detergent formulation, textile manufacture and agriculture.