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公开(公告)号：US20250043513A1
公开(公告)日：2025-02-06
申请号：US18716969
申请日：2022-12-01
Applicant: Kemira Oyj
Inventor： Markus KVIST , Sami PUTTONEN , Leif ROBERTSÉN , Matti HIETANIEMI
Abstract: There is provided a method for improving grease and oil resistance of a moulded fiber based article comprising introducing to a fiber stock a composition comprising at least one anionic polymer and cationic polymer and moulding the fiber stock. There is also provided a moulded fiber based article and a use of the composition for improving grease and oil resistance of a moulded fiber based article. There is also provided a method for preparation of a moulded fiber based article.
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公开(公告)号：US20250034813A1
公开(公告)日：2025-01-30
申请号：US18716972
申请日：2022-12-01
Applicant: Kemira Oyj
Inventor： Markus KVIST , Sami PUTTONEN , Kimmo STRENGELL , Leif ROBERTSÉN , Matti HIETANIEMI
Abstract: There is provided a method for improving grease and oil resistance of a moulded fiber based article comprising introducing to a fiber stock a composition comprising a synthetic polymer component and a cationic polymer component and thermoforming the fiber stock. There is also provided a moulded fiber based article and a use of the composition improving grease and oil resistance of a moulded fiber based article. There is also provided a method for preparation of a moulded fiber based article.
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公开(公告)号：US20190186075A1
公开(公告)日：2019-06-20
申请号：US16311213
申请日：2017-06-27
Applicant: KEMIRA OYJ
Inventor： Leif ROBERTSÉN , Veli-Matti VUORENPALO , Anna-Maija PERANDER , Pentti PEKONEN , Jonas KONN
CPC classification number: D21C9/1036 , D21C9/163 , D21C9/166
Abstract: The present invention relates to a process for treating pulp comprising a step, wherein the pulp is treated with distilled percarboxylic acid, such as distilled per-carboxylic acid (dPAA), and peroxide, such as hydrogen peroxide.
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