Invention Grant
- Patent Title: Low molecular weight dry powder polymer for use as paper-making dry strength agent
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Application No.: US17072573Application Date: 2020-10-16
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Publication No.: US11939309B2Publication Date: 2024-03-26
- Inventor: Heqing Huang , David Jordan , Robert M. Lowe , Jeffrey Cramm , Weiguo Cheng , Mingli Wei
- 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
- Main IPC: C07D307/04
- IPC: C07D307/04 ; C07C219/08 ; C07C305/04 ; C08F220/56 ; C08G65/00 ; C08K5/3435 ; C08L55/00 ; D21H17/37 ; D21H21/18 ; D21H21/20 ; D21H21/24 ; C08F220/28
Abstract:
The invention provides an associative polymer, a powder, and a process for making a powder including, networking one or more associative polymers and one or more optional surfactants to form a wet gel, and forming a powder from the wet gel, wherein the associative polymer(s) have a weight average molecular weight of from about 10 kDa to about 2,000 kDa.
Public/Granted literature
- US20210040309A1 LOW MOLECULAR WEIGHT DRY POWDER POLYMER FOR USE AS PAPER-MAKING DRY STRENGTH AGENT Public/Granted day:2021-02-11
Information query
