Invention Grant
- Patent Title: Dry polymer application method
-
Application No.: US16635122Application Date: 2018-07-31
-
Publication No.: US11214926B2Publication Date: 2022-01-04
- Inventor: Robert M. Lowe , Weiguo Cheng , David Jordan , Heqing Huang
- Applicant: ECOLAB USA INC.
- Applicant Address: US MN St. Paul
- Assignee: ECOLAB USA INC.
- Current Assignee: ECOLAB USA INC.
- Current Assignee Address: US MN St. Paul
- Agency: Barnes & Thornburg LLP
- Agent Eric D. Babych
- International Application: PCT/US2018/044562 WO 20180731
- International Announcement: WO2019/027994 WO 20190207
- Main IPC: D21H21/20
- IPC: D21H21/20 ; D21H17/37 ; D21H21/24 ; D21H21/50

Abstract:
A method of incorporating a low molecular weight polymer (e.g., polymer strength aid) into an industrial process (e.g., papermaking process) is provided. The method comprises treating an industrial process (e.g., paper sheet precursor) with a powder or wetted powder, wherein the powder comprises a polymer dry polymer (e.g., polymer strength aid), wherein the polymer dry polymer (e.g., polymer strength aid) has a weight average molecular weight of from about 10 kDa to about 2,000 kDa.
Public/Granted literature
- US20200248409A1 DRY POLYMER APPLICATION METHOD Public/Granted day:2020-08-06
Information query