BR0103235A - Resina absorvente de água, hidropolìmero, processo para a produção dos mesmos e usos dos mesmos - Google Patents

Resina absorvente de água, hidropolìmero, processo para a produção dos mesmos e usos dos mesmos

Info

Publication number
BR0103235A
BR0103235A BR0103235-6A BR0103235A BR0103235A BR 0103235 A BR0103235 A BR 0103235A BR 0103235 A BR0103235 A BR 0103235A BR 0103235 A BR0103235 A BR 0103235A
Authority
BR
Brazil
Prior art keywords
water
concentration
hydropolymer
polymerization
production
Prior art date
Application number
BR0103235-6A
Other languages
English (en)
Other versions
BR0103235B1 (pt
Inventor
Yorimichi Dairoku
Yoshio Irie
Shinichi Fujino
Yasuhiro Fujita
Takashi Azumi
Kunihiko Ishizaki
Original Assignee
Nippon Catalytic Chem Ind
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 Nippon Catalytic Chem Ind filed Critical Nippon Catalytic Chem Ind
Publication of BR0103235A publication Critical patent/BR0103235A/pt
Publication of BR0103235B1 publication Critical patent/BR0103235B1/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/04—Acids; Metal salts or ammonium salts thereof
    • C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
    • 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
    • A61L15/24—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/001—Multistage polymerisation processes characterised by a change in reactor conditions without deactivating the intermediate polymer
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/01—Processes of polymerisation characterised by special features of the polymerisation apparatus used
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/04—Polymerisation in solution
    • C08F2/10—Aqueous solvent
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
    • C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
    • C08F20/04—Acids, Metal salts or ammonium salts thereof
    • C08F20/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
    • C08F222/10—Esters
    • C08F222/1006—Esters of polyhydric alcohols or polyhydric phenols
    • C08F222/102—Esters of polyhydric alcohols or polyhydric phenols of dialcohols, e.g. ethylene glycol di(meth)acrylate or 1,4-butanediol dimethacrylate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Hematology (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymerisation Methods In General (AREA)
  • Absorbent Articles And Supports Therefor (AREA)

Abstract

Patente de Invenção: "RESINA ABSORVENTE DE áGUA, HIDROPOLìMERO, PROCESSO PARA A PRODUçãO DOS MESMOS E USOS DOS MESMOS". A presente invenção proporciona um processo de produção através do qual uma resina absorvente de água de excelente qualidade pode ser obtida em um baixo custo por meio de etapas razoáveis de polimerização de solução aquosa. O processo para a produção de uma resina absorvente de água compreende a etapa de polimerização de uma solução aquosa de monómeros formadores de resina absorvente de água incluindo ácido acrílico elou seu sal de sódio como componentes principais, e é caracterizado pelo fato de: (1) a solução aquosa ter uma concentração de componente monomérico de não menos do que 45% em peso; (2) a polimerização ser realizada enquanto água é evaporada, de modo que a proporção (proporção de concentração) entre uma concentração de componente sólido em um hidropolímero quando formado através da polimerização e uma concentração de componente sólido na solução monomérica aquosa é de não menos do que 1,10; e (3) a concentração de componente sólido no hidropolímero quando formado através da polimerização ser de não mais do que 80% em peso.
BRPI0103235-6A 2000-08-03 2001-08-03 processo para produÇço de uma resina absorvente de Água. BR0103235B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000235995 2000-08-03
JP2000348632 2000-11-15

Publications (2)

Publication Number Publication Date
BR0103235A true BR0103235A (pt) 2002-03-26
BR0103235B1 BR0103235B1 (pt) 2012-08-07

Family

ID=26597313

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0103235-6A BR0103235B1 (pt) 2000-08-03 2001-08-03 processo para produÇço de uma resina absorvente de Água.

Country Status (8)

Country Link
US (4) US6906159B2 (pt)
EP (3) EP2206733B1 (pt)
JP (1) JP5535041B2 (pt)
CN (2) CN1200954C (pt)
BR (1) BR0103235B1 (pt)
DE (1) DE60141793D1 (pt)
PL (1) PL202210B1 (pt)
TW (1) TW527365B (pt)

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CN1200954C (zh) 2005-05-11
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