Invention Application
- Patent Title: FORMALDEHYDE-FREE BINDER COMPOSITION
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Application No.: US17609386Application Date: 2020-02-06
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Publication No.: US20220220646A1Publication Date: 2022-07-14
- Inventor: Heimo WÖLFLE , Florian BAUERS , Holger Poths
- Applicant: WACKER CHEMIE AG
- Applicant Address: DE Munich
- Assignee: WACKER CHEMIE AG
- Current Assignee: WACKER CHEMIE AG
- Current Assignee Address: DE Munich
- International Application: PCT/EP2020/052993 WO 20200206
- Main IPC: D04H1/64
- IPC: D04H1/64 ; C08L31/04

Abstract:
An aqueous binder composition. The aqueous binder composition is obtainable by radically initiated polymerization of vinyl acetate and ethylene, in the presence of polyvinyl alcohol in an aqueous medium, wherein (a) 50 to 94 wt % of vinyl acetate, (b) 5 to 40 wt % of ethylene, (c) 0.2 to 5 wt % of acrylamide and/or methacrylamide, and (d) 0.2 to 5 wt % of maleic anhydride and/or maleic acid are copolymerized in the presence of a polyvinyl alcohol having a degree of hydrolysis of 80 to 99 mol %. The amounts in wt % are each based on the total weight of the comonomers and add up in each case to 100 wt %.
Information query
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