Invention Grant
- Patent Title: Process for the preparation of hydroxy polymer esters and their use
- Patent Title (中): 制备羟基聚合物酯的方法及其用途
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Application No.: US12085384Application Date: 2006-12-07
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Publication No.: US08410262B2Publication Date: 2013-04-02
- Inventor: Aki Laine , Hendrik Luttikhedde
- Applicant: Aki Laine , Hendrik Luttikhedde
- Applicant Address: FI Mietoinen
- Assignee: Chemigate Oy
- Current Assignee: Chemigate Oy
- Current Assignee Address: FI Mietoinen
- Agency: Drinker Biddle & Reath
- Priority: EP05026787 20051208
- International Application: PCT/EP2006/011767 WO 20061207
- International Announcement: WO2007/065681 WO 20070614
- Main IPC: C07H1/00
- IPC: C07H1/00 ; C08B31/04 ; C08B37/00
Abstract:
This invention covers a novel method for the preparation of hydroxy polymer esters of amino, alkylamino and quaternary ammonium acids and their use in several fields of industry, including the use as additives in the manufacture of paper or paperboard. The esterification of the hydroxy polymer, preferably starch, is performed under semianhydrous conditions by heating homogenized mixtures of the hydroxy polymer and reagents.
Public/Granted literature
- US20090270606A1 Process for the Preparation of Hydroxy Polymer Esters and Their Use Public/Granted day:2009-10-29
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