ES2174319T3 - Esponjas de celulosa. - Google Patents

Esponjas de celulosa.

Info

Publication number
ES2174319T3
ES2174319T3 ES97950320T ES97950320T ES2174319T3 ES 2174319 T3 ES2174319 T3 ES 2174319T3 ES 97950320 T ES97950320 T ES 97950320T ES 97950320 T ES97950320 T ES 97950320T ES 2174319 T3 ES2174319 T3 ES 2174319T3
Authority
ES
Spain
Prior art keywords
cellulose
sponge
solution
preferibly
cells
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES97950320T
Other languages
English (en)
Inventor
Gregory James Askew
Hardev Singh Bahia
Christopher Walter Foxall
Stephen John Law
Heather Street
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lenzing Fibers Ltd
Original Assignee
Tencel Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tencel Ltd filed Critical Tencel Ltd
Application granted granted Critical
Publication of ES2174319T3 publication Critical patent/ES2174319T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B11/00—Preparation of cellulose ethers
    • C08B11/02—Alkyl or cycloalkyl ethers
    • C08B11/04—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals
    • C08B11/10—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals substituted with acid radicals
    • C08B11/12—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals substituted with acid radicals substituted with carboxylic radicals, e.g. carboxymethylcellulose [CMC]
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/08—Cellulose derivatives
    • C08L1/26—Cellulose ethers
    • C08L1/28—Alkyl ethers
    • C08L1/286—Alkyl ethers substituted with acid radicals, e.g. carboxymethyl cellulose [CMC]
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
    • C08J2301/02—Cellulose; Modified cellulose

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Laminated Bodies (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

LA INVENCION SE REFIERE A UNA ESPONJA DE CELULOSA, QUE SE FORMA A PARTIR DE UNA SOLUCION DE CELULOSA COAGULADA QUE TIENE UN GRADO MEDIO DE POLIMERIZACION (DP) NO SUPERIOR A 800. PREFERIBLEMENTE, EL DP SE SITUA EN EL RANGO DE 450-600. LA ESPONJA SE PUEDE REFORZAR MEDIANTE FIBRAS DISCONTINUAS, PREFERIBLEMENTE DE CELULOSA, Y SE PUEDE TRATAR CON UN AGENTE HUMECTANTE O CON UN ABLANDADOR. DICHA ESPONJA PUEDE CONTENER ASIMISMO UNO O MAS TENSIOACTIVOS. LA RETENCION DE AGUA SE PUEDE INCREMENTAR MEDIANTE ETERIFICACION PARCIAL. ASIMISMO, SE DESCRIBE UN PROCEDIMIENTO DE FABRICACION DE UNA ESPONJA DE CELULOSA, A PARTIR DE UNA SOLUCION DE CELULOSA EN UN DISOLVENTE DE OXIDO DE AMINA. UN ADITIVO (COMO UNA SAL INORGANICA SOLUBLE O UN MATERIAL ORGANICO HIDROSOLUBLE) SE DISPERSA EN EL SENO DE LA SOLUCION, Y PROPORCIONA SITIOS PARA LA FORMACION DE CELULAS EN LA SOLUCION DE CELULOSA, A MEDIDA QUE ESTA SE REGENERA. SE PUEDE EMPLEAR UN AGENTE ESPUMANTE O SOPLANTE PARA FACILITAR LA FORMACION DE LAS CELULAS. SE PUEDE AÑADIR ASIMISMO UN LATEX DE CAUCHO NATURAL PARA AUMENTAR LA RESISTENCIA MECANICA Y, EN ALGUNOS CASOS, PARA AUMENTAR LA ABSORBENCIA.
ES97950320T 1996-12-24 1997-12-23 Esponjas de celulosa. Expired - Lifetime ES2174319T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9626894.1A GB9626894D0 (en) 1996-12-24 1996-12-24 Cellulosic sponges

Publications (1)

Publication Number Publication Date
ES2174319T3 true ES2174319T3 (es) 2002-11-01

Family

ID=10805031

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97950320T Expired - Lifetime ES2174319T3 (es) 1996-12-24 1997-12-23 Esponjas de celulosa.

Country Status (7)

Country Link
EP (1) EP0948559B1 (es)
AT (1) ATE214721T1 (es)
AU (1) AU5332198A (es)
DE (1) DE69711232T2 (es)
ES (1) ES2174319T3 (es)
GB (1) GB9626894D0 (es)
WO (1) WO1998028360A1 (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19753546A1 (de) * 1997-12-03 1999-06-10 Kalle Nalo Gmbh Schwammtuch auf Cellulosebasis und Verfahren zu dessen Herstellung
US20030143388A1 (en) * 2001-12-31 2003-07-31 Reeves William G. Regenerated carbohydrate foam composition
CN100465217C (zh) * 2004-09-06 2009-03-04 刘灵柱 高弹力轮胎及制备方法
DE102007003336A1 (de) * 2007-01-17 2008-07-24 Carl Freudenberg Kg Verfahren zur Herstellung eines Cellulose-Schwammtuches, Cellulose-Schwammtuch und desen Verwendung
CN112480469B (zh) * 2020-11-10 2022-11-11 烟台大学 海洋生物多糖基复合海绵及其制备方法和用途
CN114085417B (zh) * 2021-11-19 2023-01-31 江苏科技大学 一种基于不同长度分子链混合的全纤维素海绵的制备方法及用途
CN114377188B (zh) * 2022-01-14 2023-01-10 宋金华 一种超吸水生物基泡沫材料及其制备方法和应用
US12599693B2 (en) 2022-12-30 2026-04-14 University Of Central Florida Research Foundation, Inc. Augmented thermoset polymer sponges for in situ hemostatic treatment of external and internal wounds
CN119019753B (zh) * 2024-10-25 2025-05-30 宁波尼可海绵科技有限公司 一种海绵制品及其制备方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3382303A (en) * 1966-05-03 1968-05-07 Fred B. Stieg Process and apparatus for making regenerated cellulose sponges
FR2651783B1 (fr) * 1989-09-12 1993-05-07 Elysees Balzac Financiere Materiau alveolaire cellulosique a retention d'eau amelioree et preparation de celui-ci.
AT400581B (de) * 1993-10-19 1996-01-25 Chemiefaser Lenzing Ag Verfahren zur herstellung von lösungen von cellulose
JP3279046B2 (ja) * 1994-03-02 2002-04-30 日清紡績株式会社 セルロース誘導体スポンジおよびその製造方法
AT402932B (de) * 1995-12-22 1997-09-25 Chemiefaser Lenzing Ag Celluloseschwamm und verfahren zu dessen herstellung
FR2748277B1 (fr) * 1996-05-06 1998-07-31 Elysees Balzac Financiere Procede de fabrication de produits alveolaires cellulosiques produits alveolaires cellulosiques

Also Published As

Publication number Publication date
AU5332198A (en) 1998-07-17
DE69711232D1 (de) 2002-04-25
EP0948559A1 (en) 1999-10-13
WO1998028360A1 (en) 1998-07-02
EP0948559B1 (en) 2002-03-20
GB9626894D0 (en) 1997-02-12
ATE214721T1 (de) 2002-04-15
DE69711232T2 (de) 2002-11-28

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