Invention Grant
- Patent Title: Paper-making aid composition and process for increasing ash retention of finished paper
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Application No.: US15021490Application Date: 2014-09-12
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Publication No.: US09873986B2Publication Date: 2018-01-23
- Inventor: Bo Zhu , Na Xu , Meng Zhang , Yulin Zhao
- 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: Leydig, Voit & Mayer, Ltd.
- Priority: CN201310413579 20130912
- International Application: PCT/US2014/055415 WO 20140912
- International Announcement: WO2015/038905 WO 20150319
- Main IPC: D21H17/37
- IPC: D21H17/37 ; D21H21/18
Abstract:
A paper-making aid composition comprising dialdehyde-modified polyacrylamide-type strengthening agent, polyacrylamide-type strengthening agent and water and having a pH value of 6 or more is provided. A method of paper-making by using the paper-making aid composition is also provided.
Public/Granted literature
- US20160230346A1 Paper-Making Aid Composition and Process for Increasing Ash Retention of Finished Paper Public/Granted day:2016-08-11
Information query
