BRPI0408936A - redes de amido como materiais absorventes ou superabsorventes e sua preparação por extrusão - Google Patents

redes de amido como materiais absorventes ou superabsorventes e sua preparação por extrusão

Info

Publication number
BRPI0408936A
BRPI0408936A BRPI0408936-7A BRPI0408936A BRPI0408936A BR PI0408936 A BRPI0408936 A BR PI0408936A BR PI0408936 A BRPI0408936 A BR PI0408936A BR PI0408936 A BRPI0408936 A BR PI0408936A
Authority
BR
Brazil
Prior art keywords
starch
absorbent
extrusion
preparation
superabsorbent materials
Prior art date
Application number
BRPI0408936-7A
Other languages
English (en)
Inventor
Claude Thibodeau
David Bergeron
Isabelle Bolduc
Claude Couture
Nicolas Nourry
Original Assignee
Le Groupe Lysac Inc
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 Le Groupe Lysac Inc filed Critical Le Groupe Lysac Inc
Publication of BRPI0408936A publication Critical patent/BRPI0408936A/pt
Publication of BRPI0408936B1 publication Critical patent/BRPI0408936B1/pt

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
    • A61L15/28—Polysaccharides or their derivatives
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/60—Liquid-swellable gel-forming materials, e.g. super-absorbents
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B31/00—Preparation of derivatives of starch
    • C08B31/003—Crosslinking of starch
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B35/00—Preparation of derivatives of amylopectin

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Hematology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Epidemiology (AREA)
  • Biochemistry (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Absorbent Articles And Supports Therefor (AREA)

Abstract

"REDES DE AMIDO COMO MATERIAIS ABSORVENTES OU SUPERABSORVENTES E SUA PREPARAçãO POR EXTRUSãO". A presente invenção refere-se a um material absorvente consistindo em uma rede molecular formada de moléculas de amido, moléculas de amido essas que possuem um teor de amilopectina de pelo menos 90 % (p/p). A rede molecular pode ser composta de amidos auto-entrelaçados ou amidos reticulados.
BRPI0408936-7A 2003-03-26 2004-03-26 Processo para produção de um material absorvente particulado e mistura absorvente BRPI0408936B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CA002423712A CA2423712A1 (en) 2003-03-26 2003-03-26 Crosslinked amylopectin by reactive extrusion and its use as an absorbent or superabsorbent material
CA2,423,712 2003-03-26
PCT/CA2004/000473 WO2004085481A1 (en) 2003-03-26 2004-03-26 Starch networks as absorbent or superabsorbent materials and their preparation by extrusion

Publications (2)

Publication Number Publication Date
BRPI0408936A true BRPI0408936A (pt) 2006-04-18
BRPI0408936B1 BRPI0408936B1 (pt) 2015-04-14

Family

ID=33034943

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0408936-7A BRPI0408936B1 (pt) 2003-03-26 2004-03-26 Processo para produção de um material absorvente particulado e mistura absorvente

Country Status (7)

Country Link
US (1) US8710212B2 (pt)
EP (1) EP1615957B1 (pt)
AU (1) AU2004224263B2 (pt)
BR (1) BRPI0408936B1 (pt)
CA (1) CA2423712A1 (pt)
MX (1) MXPA05010317A (pt)
WO (1) WO2004085481A1 (pt)

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CN112779792A (zh) * 2020-12-24 2021-05-11 苏州市和好塑业有限公司 可降解用快餐盒包装材料及其制法
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Also Published As

Publication number Publication date
US8710212B2 (en) 2014-04-29
EP1615957B1 (en) 2013-02-13
CA2423712A1 (en) 2004-09-26
MXPA05010317A (es) 2005-11-17
AU2004224263B2 (en) 2009-09-03
AU2004224263A1 (en) 2004-10-07
EP1615957A1 (en) 2006-01-18
BRPI0408936B1 (pt) 2015-04-14
WO2004085481A1 (en) 2004-10-07
US20070179291A1 (en) 2007-08-02

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Legal Events

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B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 14/04/2015, OBSERVADAS AS CONDICOES LEGAIS.

B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 14/04/2025.