ES2070369T3 - Procedimiento para la fabricacion de resinas absorbentes de agua. - Google Patents

Procedimiento para la fabricacion de resinas absorbentes de agua.

Info

Publication number
ES2070369T3
ES2070369T3 ES91109706T ES91109706T ES2070369T3 ES 2070369 T3 ES2070369 T3 ES 2070369T3 ES 91109706 T ES91109706 T ES 91109706T ES 91109706 T ES91109706 T ES 91109706T ES 2070369 T3 ES2070369 T3 ES 2070369T3
Authority
ES
Spain
Prior art keywords
materials
polymerization
liquid solution
water absorption
resins
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
ES91109706T
Other languages
English (en)
Inventor
Takashi Sanyokasei Higa Sumiya
Masashi Date
Tanaka Kenji
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.)
Sanyo Chemical Industries Ltd
Original Assignee
Sanyo Chemical Industries 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
Priority claimed from JP23732890A external-priority patent/JPH04175319A/ja
Application filed by Sanyo Chemical Industries Ltd filed Critical Sanyo Chemical Industries Ltd
Application granted granted Critical
Publication of ES2070369T3 publication Critical patent/ES2070369T3/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
    • 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
    • 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
    • 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
    • C08F222/103—Esters of polyhydric alcohols or polyhydric phenols of trialcohols, e.g. trimethylolpropane tri(meth)acrylate
    • 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
    • C08F222/36—Amides or imides
    • C08F222/38—Amides
    • C08F222/385—Monomers containing two or more (meth)acrylamide groups, e.g. N,N'-methylenebisacrylamide

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

LA INVENCION SE REFIERE A UN PROCESO PARA PRODUCIR RESINAS DE ABSORCION DE AGUA INSOLUBLES EN LA MISMA, QUE COMPRENDE LOS PASOS DE INICIAR LA POLIMERIZACION DE UNA SOLUCION LIQUIDA QUE CONTIENE DEL 30 AL 80% DE SU PESO DE (A) UN MONOMERO DE VINILO HIDROFILICO PROVISTO DE UN GRUPO FUNCIONAL Y (B) DE UN AGENTE DE UNION TRANSVERSAL AL SUMINISTRAR LA SOLUCION LIQUIDA JUNTO CON (C) UN INICIADOR DE LA POLIMERIZACION A UN APARATO DE POLIMERIZACION CAPAZ DE CALENTAR Y/O ENFRIAR LAS SUPERFICIES EN CONTACTO CON LA SOLUCION LIQUIDA, CAUSANDO SUBSIGUIENTEMENTE LA POLIMERIZACION A TEMPERATURA CONSTANTE DE LA SOLUCION SIN AGITARLA AL CONTROLAR LA TEMPERATURA DEL SISTEMA QUE ESTA SIENDO POLIMERIZADO DE 20 A 70 (GRADOS) C Y, ELEVANDO, SI FUERA NECESARIO, LA TEMPERATURA DEL SISTEMA PARA QUE EXCEDA LOS 70 (GRADOS) C EN UNA ETAPA CON UN PORCENTAJE DE POLIMERIZACION DE UN 70% O MAYOR ANTES DE COMPLETAR LA POLIMERIZACION. LAS RESINAS DE ABSORCION DE AGUA INSOLUBLES EN LA MISMA OBTENIDAS POSEEN UNA EXCELENTE PROPIEDAD DE ABSORCION DEL AGUA Y TIENEN MENOS COMPONENTES SOLUBLES EN LA MISMA. ASI, ESTAS RESINAS DE ACUERDO CON LA INVENCION SERAN UTILES PARA PRODUCTOS FISIOLOGICOS, PAÑALES DE PAPEL O MATERIALES SANITARIOS SIMILARES, MATERIALES DE ABSORCION DE GOTEO, RETENEDORES DE AGUA FRIA, MATERIALES DE PREVENCION DE CONDENSACION DEL ROCIO PARA MATERIALES DE CONSTRUCCION Y ASI SUCESIVAMENTE.
ES91109706T 1990-07-17 1991-06-13 Procedimiento para la fabricacion de resinas absorbentes de agua. Expired - Lifetime ES2070369T3 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP18869190 1990-07-17
JP22910390 1990-08-29
JP23732890A JPH04175319A (ja) 1990-07-17 1990-09-06 吸水性樹脂の製造法

Publications (1)

Publication Number Publication Date
ES2070369T3 true ES2070369T3 (es) 1995-06-01

Family

ID=27326079

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91109706T Expired - Lifetime ES2070369T3 (es) 1990-07-17 1991-06-13 Procedimiento para la fabricacion de resinas absorbentes de agua.

Country Status (6)

Country Link
US (1) US5380808A (es)
EP (1) EP0467073B1 (es)
CA (1) CA2046688A1 (es)
DE (1) DE69108804T2 (es)
ES (1) ES2070369T3 (es)
FI (1) FI913425A7 (es)

Families Citing this family (122)

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FI913425A0 (fi) 1991-07-16
EP0467073B1 (en) 1995-04-12
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EP0467073A1 (en) 1992-01-22
CA2046688A1 (en) 1992-01-18

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