A method of producing dimensionally stable paper and/or paperboard products by treating a hygroreactive cellulosic fiber matrix with a hydrophobic sizing agent solution; and drying the treated fibers using heat and/or pressure so that the hydrophobic sizing agent penetrates the fiber matrix making it hydrophobic.

Claims

8 · 1 independent · depth 2

8 granted claims

›1.independentA method of producing dimensionally stable paper and/or paperboard products comprising: treating a hygroreactive cellulosic fiber matrix with a hydrop…+7

Classifications

10 codes

USPC · US Patent Classification

162/180162/184162/168.2162/172162/169162/207162/173162/206162/205162/158

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Pendency

2.7 y

981 days filing → grant

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Examiner

Jose Fortuna

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