专利检索 ap:("DOW GLOBAL TECHNOLOGIES LLC" OR "Rohm AND Haas Company" OR "THE REGENTS OF THE UNIVERSITY OF CALIFORNIA") AND inv:"Maria Simon" 第 1 页

1.

发明授权
Scale inhibition using star polymers 有权

公开(公告)号：US11492538B2

公开(公告)日：2022-11-08

申请号：US17425745

申请日：2020-01-28

申请人： DOW GLOBAL TECHNOLOGIES LLC , ROHM AND HAAS COMPANY , THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

发明人： Puspendu Deo , Antony K. Van Dyk , Paul Clark , David Lunn , Craig Hawker , Maria Simon , Sungbaek Seo , Alaina McGrath

IPC分类号： E21B37/06 , C09K8/528

摘要： A method for inhibiting scale comprises adding to a fluid that causes scale formation a polycarboxylic acid or a salt thereof which has a star structure and at least 5 arms. A star polymer comprising a core based on 2,2′-[Oxybis(methylene)]bis[2-(hydroxymethyl)-1,3-propanediol] and 6 arms comprising linear polycarboxylic acids of degree of polymerization (DP) of the arm of at least 2 and in some embodiments up to 15 or more is useful in inhibiting scale formation.

2.

发明授权
Scale inhibition using branched polymers 有权

公开(公告)号：US11359132B2

公开(公告)日：2022-06-14

申请号：US17425971

申请日：2020-01-28

申请人： DOW GLOBAL TECHNOLOGIES LLC , Rohm and Haas Company , THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

发明人： Puspendu Deo , Antony K. Van Dyk , Paul Clark , David Lunn , Craig Hawker , Maria Simon , Sungbaek Seo , Alaina McGrath

IPC分类号： C09K8/528 , C02F5/10 , C08F220/06 , C09K8/588 , C02F1/68 , C02F103/02

摘要： Disclosed herein is a method for inhibiting scale comprising adding to a fluid that causes scale formation a polycarboxylic acid having a polymer backbone and a plurality of branches from the polymer backbone.

3.

发明申请
INHIBITION OF SILICA SCALE USING A CHELATING AGENT BLENDED WITH ACID AND ALKYLENE OXIDE DERIVED POLYMER DISPERSANTS 有权

公开(公告)号：US20210221723A1

公开(公告)日：2021-07-22

申请号：US15734058

申请日：2019-05-29

申请人： Dow Global Technologies LLC , Rohm and Haas Company

发明人： Puspendu Deo , Maria Simon , Pramod Akhade , Graham P. Abramo , Kaylie L. Young , Somil Chandrakant Mehta

IPC分类号： C02F5/12 , C08F220/28 , C08F220/06 , C08F283/06

摘要： A method of inhibiting silica and silicate scale formation via treating an aqueous system containing silica with an effective amount of a chelating agent blended with a polymeric dispersant in a weight ratio range from greater than 1.0:0.5 to less than 1.0:3.0, agent to dispersant, including blends in a weight ratio of 1:1. Specifically, the chelating agent is either EDTA or DTPA, while the polymer dispersant is an acid and alkylene oxide derived dispersant.