Patent classifications
D
TEXTILES; PAPER
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D21
PAPER-MAKING; PRODUCTION OF CELLULOSE
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D21H
PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
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27/00
Special paper not otherwise provided for, e.g. made by multi-step processes
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D21H27/18
Paper- or board-based structures for surface covering
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D21H27/22
Structures being applied on the surface by special manufacturing processes, e.g. in presses
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D21H27/22

Use of metal chelates as a surface application for abrasion and/or taber stiffness, improvement in paper and paperboard
12522981 · 2026-01-13 · ·

The embodiments of the present invention generally relate to i) paper and paperboard or molded products with improved abrasion resistance and/or taber stiffness, ii) methods for making paper and paperboard or molded products with improved abrasion resistance and/or taber stiffness, and iii) methods for improving abrasion resistance and/or taber stiffness paper and paperboard or molded products, by using a metal chelate, such as, Ammonium Zirconium Carbonate (AZC) or Potassium Zirconium Carbonate (PZC). Further advantages of the embodiments of the present invention will be readily apparent to the reader from this disclosure.