Preparation of recyclable fiber composites

Details Preparation of recyclable fiber composites Preparation of recyclable fiber composites

D - Textiles, Paper

04

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D04H 1/64 (2006.01) D06M 15/227 (2006.01) D06M 15/233 (2006.01) D06M 15/263 (2006.01) D06M 15/285 (2006.01) D06M 15/29 (2006.01) D06M 15/31 (2006.01) D06M 15/327 (2006.01) D06M 15/333 (2006.01) D06M 15/347 (2006.01) D06M 15/356 (2006.01)

Patent

CA 2185161

A process for preparing recyclable fiber composites by bonding the fibers together by means of a polymeric bonding agent comprises using a bonding agent comprising an aqueous addition polymer dispersion comprising, in a state of dispersion, an addition polymer fraction which films at use temperature with the proviso that the total amount of the ad- dition polymer fraction of the aqueous addition polymer dispersion which films at use temperature and is present in the aqueous addition polymer dispersion in a state of dispersion is converted into an aqueous addition polymer solution when the pH of the aqueous dispersing medium is chan- ged. The aqueous addition polymer dispersion's addition polymer fraction which films at use temperature may have protic acid groups and its state of dispersion in the aqueous medium can be converted into an aqueous addition polymer solution by raising the pH of the aqueous medium, or it may have basic groups, in particular amino groups, and its state of dis- persion in the aqueous medium can be converted into an aqueous addition polymer solution by lowering the pH of the aqueous medium.

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