Coating compositions comprising alkyl ketene dimers and...

Paper making and fiber liberation – Processes and products – Non-fiber additive

Reexamination Certificate

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Details

C162S147000, C162S158000, C162S164100, C162S175000, C162S185000, C106S162100, C106S206100, C106S287240, C549S233000, C549S255000

Reexamination Certificate

active

07429309

ABSTRACT:
Additives for paper making are disclosed herein. Specifically, the additives are wax-free alternatives to conventional coatings, including ASA, AKD and optionally an acrylic containing composition. Other additives may be included in the coating, such as cationic particles or compositions. The coatings may be used at a variety of points during the paper making process, including on the calender stack and in the wet end.

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