Aqueous compositions of perfluoropolyether phosphates and...

Details Aqueous compositions of perfluoropolyether phosphates and... Aqueous compositions of perfluoropolyether phosphates and...

2006-11-28

2006-11-28

Hug, Eric (Department: 1731)

Paper making and fiber liberation

Processes and products

With coating after drying

C162S158000, C162S184000, C106S287290, C427S395000, C427S393400

Reexamination Certificate

active

07141140

ABSTRACT:
Aqueous compositions of (per)fluoropolyether phosphates of formula:in-line-formulae description="In-line Formulae" end="lead"?T—O—[Rf—CFY—L—O]P(O)(O−Z+)(OH);   (A)in-line-formulae description="In-line Formulae" end="tail"?and/orin-line-formulae description="In-line Formulae" end="lead"?(OH)m(O−Z+)2-mP(O)[O—L—YFC—O—Rf—CFY—L—O—P(O)(O−Z+)]m′——[O—L—YFC—O—Rf—CFY—L—O]P(O)(O−Z+)2-m(OH)m  (B)in-line-formulae description="In-line Formulae" end="tail"?and use thereof to confer oleo-repellence to the paper by means of the size-press method.

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