Invention Application
- Patent Title: COMPOSITION AND ITS USE FOR USE IN MANUFACTURE OF PAPER, BOARD OR THE LIKE
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Application No.: US17786181Application Date: 2020-12-18
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Publication No.: US20230024255A1Publication Date: 2023-01-26
- Inventor: Matti HIETANIEMI , Asko KARPPI
- Applicant: Kemira Oyj
- Applicant Address: FI Helsinki
- Assignee: Kemira Oyj
- Current Assignee: Kemira Oyj
- Current Assignee Address: FI Helsinki
- Priority: FI20196124 20191223
- International Application: PCT/FI2020/050855 WO 20201218
- Main IPC: D21H17/45
- IPC: D21H17/45 ; D21H21/18 ; D21H21/10 ; D21H17/28 ; D21H11/14 ; D21H11/02

Abstract:
The invention relates to a composition for use in a manufacture of paper, board or the like. The composition comprises a mixture of cationic starch having amylopectin content of at least 85%, and an amphoteric polymeric structure comprising structural units originating from non-ionic monomers, preferably (meth)acrylamide, anionic groups and cationic groups, the polymeric structure comprising cationic groups at least 0.2 mol-%.
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