Method for the manufacture of microfibrillated cellulose

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United States of America Patent

PATENT NO 8546558
APP PUB NO 20090221812A1
SERIAL NO

12161463

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method of treating chemical pulp for the manufacture of microfibrillated cellulose includes the following steps: a) providing a hemicellulose containing pulp, b) refining the pulp in at least one step and treating the pulp with one or more wood degrading enzymes at a relatively low enzyme dosage, and c) homogenizing the pulp thus providing the microfibrillated cellulose. A microfibrillated cellulose obtainable by the method is also provided. The microfibrillated cellulose can be used in food products, paper products, composite materials, coatings or in rheology modifiers (e.g. drilling muds).

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Patent Owner(s)

Patent OwnerAddress
STFI-PACKFORSK AB114 86 STOCKHOLM

International Classification(s)

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  • 2007 Application Filing Year
  • D21B Class
  • 16 Applications Filed
  • 9 Patents Issued To-Date
  • 56.25 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances200720082009201020112012201320140255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ankerfors, Mikael Stockholm, SE 6 126
Henriksson, Gunnar Solna, SE 10 99
Lindström, Tom Sollentuna, SE 6 41

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Patent Citation Ranking

  • 19 Citation Count
  • D21B Class
  • 13.33 % this patent is cited more than
  • 12 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges21301 - 1001234567891011121314

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