GELLED AQUEOUS COMPOSITION FOR OIL EXTRACTION

    公开(公告)号:US20210115165A1

    公开(公告)日:2021-04-22

    申请号:US17041532

    申请日:2019-04-10

    Abstract: The present invention relates to the field of oil extraction. More specifically, it relates to a particular polymerization process, which provides access to formulations of polymers that may be used in particular for modifying rheology and fluid loss control during extraction operations and that have a better heat stability.

    COPOLYMER COMPRISING UNITS OF TYPE A DERIVING FROM CARBOXYLIC ACID MONOMERS AND UNITS OF TYPE B DERIVING FROM SULFONIC ACID MONOMERS
    9.
    发明申请
    COPOLYMER COMPRISING UNITS OF TYPE A DERIVING FROM CARBOXYLIC ACID MONOMERS AND UNITS OF TYPE B DERIVING FROM SULFONIC ACID MONOMERS 审中-公开
    包含从羧酸单体衍生的A型单体和从硫酸单体衍生的B型单体的共聚物

    公开(公告)号:US20160340617A1

    公开(公告)日:2016-11-24

    申请号:US15112799

    申请日:2015-01-20

    Abstract: The present invention relates to a copolymer comprising units of type A deriving from carboxylic acid monomers and units of type B deriving from sulfonic acid monomers, said units of type A and B representing more than 80 mol % of the total moles of units in the copolymer, characterized in that it comprises at least: —one first block formed of at least 95 mol % of units of type A and having a degree of polymerization DP1 comprised between 5 and 150; and —one second block formed of at least 95 mol % of units of type A and B with a molar ratio of units of type A to units of type B greater or equal to 1, wherein said units of type A and units of type B are statistically distributed, said second block having a degree of polymerization DP2 such that DP2/DP1≧1. It also relates to new detergent compositions comprising such a copolymer, and to the use of this copolymer in a detergent composition, especially an ADW composition, to prevent, limit or eliminate the filming phenomena.

    Abstract translation: 本发明涉及包含衍生自羧酸单体的A型单元和衍生自磺酸单体的B型单元的共聚物,所述A和B型单元表示共聚物中单元总摩尔数的80摩尔% 其特征在于它至少包括:由至少95mol%的A型单元形成的第一嵌段,其聚合度DP1在5至150之间; 和由至少95mol%的A型和B型单元形成的第二嵌段,其中A型单元与B型单元的摩尔比大于或等于1,其中A型单元和B型单元 统计分布,所述第二嵌段具有DP2 /DP1≥1的聚合度DP2。 它还涉及包含这种共聚物的新的洗涤剂组合物,以及在洗涤剂组合物,特别是ADW组合物中使用该共聚物来防止,限制或消除成膜现象。

Patent Agency Ranking