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Method for improving properties of cellulose-based fibrous sheet-formed materials for use in medical goods.
2011 (Engelska)Ingår i: Patent World, ISSN 0950-2513, nr WO2011039325A2Artikel i tidskrift (Övrig (populärvetenskap, debatt, mm)) Published
Abstract [en]

A method for improving surface strength, fiber tear or linting of a sheet-formed fibrous material formed from an aq. slurry of cellulose fiber by spraying a face of the material with a chem. formulation consisting of a polymer contg. at least two carboxylic groups per mol. such as polyacrylic acid or polysaccharide or their sodium and potassium salts and aliph. mono-, di-, or three- basic carboxylic acid with mol. wt. of 40-500 Da in an aq. carrier, keeping the coated face at ≥ 50° for time sufficient to gain the desired improvement including drying time of the material is presented. The chem. formulation is sprayed on the wet laid sheet-formed material at the wet end of a paper machine in an amt. of 1-5% by wt. of the sheet-formed material in a dry state. Also disclosed is a sheet-formed fibrous material prepd. by the method and a laminated product of medical grade comprising the sheet-formed fibrous material and a polymer film. [on SciFinder(R)]

Ort, förlag, år, upplaga, sidor
OrganoClick Aktiebolag, Swed. . , 2011. nr WO2011039325A2
Nyckelord [en]
cellulose pulp paper fiber sheet tear improvement surface spray, medical grade tear resistant cellulosic sheet prodn
Nationell ämneskategori
Naturvetenskap
Identifikatorer
URN: urn:nbn:se:uu:diva-174508OAI: oai:DiVA.org:uu-174508DiVA, id: diva2:527610
Anmärkning
CAPLUS AN 2011:435621(Patent)Tillgänglig från: 2012-05-21 Skapad: 2012-05-21 Senast uppdaterad: 2017-12-07

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