KR940014468A - 흡수수지의 제조방법 - Google Patents

흡수수지의 제조방법 Download PDF

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KR940014468A
KR940014468A KR1019930027967A KR930027967A KR940014468A KR 940014468 A KR940014468 A KR 940014468A KR 1019930027967 A KR1019930027967 A KR 1019930027967A KR 930027967 A KR930027967 A KR 930027967A KR 940014468 A KR940014468 A KR 940014468A
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weight
absorbent resin
parts
range
crosslinking agent
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KR1019930027967A
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KR0137347B1 (ko
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다이로쿠 요리미치
나가수나 킨야
야노 카쥬타카
야나세 토루
마수다 요시히코
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쇼소 타나카
니폰 쇼쿠바이 코퍼레이션 리미티드
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    • 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
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
    • C08J3/243—Two or more independent types of crosslinking for one or more polymers
    • 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
    • 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
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • 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
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/14—Esterification
    • 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
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or 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 of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • 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
    • C08J2300/00—Characterised by the use of unspecified polymers
    • C08J2300/14—Water soluble or water swellable polymers, e.g. aqueous gels

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

Abstract

본 발명에 의하여, 흡수수지의 기본적인 물리적 속성중의 하나인, 무부하 상태에서의 높은 수준의 흡수능력을 보유하고 부하상태에서도 흡수능력이 탁월한 흡수수지의 제조방법이 제공된다. 상기 제조는 카르복실 그룹을 가진 베이스 폴리머로서의 흡수수지를 용해도계수(SP값)가 12.5(cal/cm3)1/2이상이고 카르복실그룹과의 반응성이 있는 1차가교제 및 용해도계수(SP값)가 12.5(cal/cm3)1/2미만이고 카르복실그룹과의 반응성이 있는 2차 가교제와 혼합하고 그 결과로서 생긴 혼합물 160℃ 이상의 온도에서 열처리함으로써 이루어진다.

Description

흡수수지의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에서 부하상태 하에서의 흡수능력 측정에 이용되는 장치의 단면도이다.

Claims (14)

  1. 카르복실그룹을 가진 베이스 폴러머로서의 흡수수지를 용해도계수(SP값)가 12.5(cal/cm3)1/2이상이고 상기 카르복실그룹과의 반응성이 있는 1차 가교제 및 용해도계수(SP값)가 12.5(cal/cm3)1/2미만인 2차 가교제와 혼합하고 그 결과로서 생긴 혼합물을 160℃이상의 온도에서 열처리하는 과정을 포함하는 흡수수지의 제조방법.
  2. 제1항에 있어서, 상기한 1차 가교제가 13.0내지 18.0(cal/cm3)1/2미만인 범위내의 용해도계수(SP값)를 가지는 방법.
  3. 제1항에 있어서, 상기한 2차 가교제가 9.5(cal/cm3)1/2이상 12.0(cal/cm3)1/2미만인 범위내의 용해도계수(SP값)를 가지는 방법.
  4. 제1항에 있어서, 상기한 1차 및 2차 가교제는 상기한 1차 가교제의 용해도계수(SP값)의 상기한 2차 가교제의 용해도 계수(SP값) 상이의 차가 2(cal/cm3)1/2이상이 되도록 선택되는 방법.
  5. 제1항에 있어서, 상기한 1차 가교제는 200이하의 분자량을 가지고 상기한 2차 가교제는 350이하의 분자량을 가지는 방법.
  6. 제1항에 있어서, 상기한 베이스 폴리머로서의 흡수수지의 고형 100중량부를 기준으로 하여, 상기한 1차 가교제의 양은 0.001 내지 10중량부 범위내이고 상기한 2차 가교제의 양은 0.001 내지 10중량부 범위내인 방법.
  7. 제1항에 있어서, 상기한 혼합이 상기된 베이스폴리머로서의 흡수수지 고형 100중량부를 기준으로하여 10중량부 이하의 수분의 존재하에서 수행하는 방법.
  8. 제1항에 있어서, 상기한 베이스폴리머로서의 흡수수지의 상기한 카리복실그룹의 양은 상기한 흡수수지 100g당 0.01당량 이상인 방법.
  9. 제1항에 있어서, 상기한 베이스폴리머로서의 흡수수지의 부분적으로 중화된 가교 폴리아크릴산이고 중화되지 않은 폴리아크린산의 비율이 1 내지 60중량% 범위 내인 방법.
  10. 제1항에 있어서, 상기한 베이스 폴리머로서의 흡수수지의 수분 함량이 1 내지 10중량% 범위내인 방법.
  11. 제7항에 있어서, 상기한 혼합이 상기한 베이스폴리로서의 흡수수지 고형 100중량을 기준으로 하여 0.5 내지 5중량부의 수분의 존재하에서 수행되는 방법.
  12. 제1항에 있어서, 상기한 베이스폴리머로서의 흡수수지 고형 100중량부를 기준으로 하여 상기한 1차 가교제의 양은 0.01 내지 8중량부 범위내이고 상기한 2차 가교제의 양은 0.001 내지 1중량부 범위내인 발명.
  13. 제1항에 있어서, 상기한 열처리가 170 내지 230℃ 범위내의 온도에서 수행되는 방법.
  14. 제1항에 있어서, 상기한 베이스폴리머로서의 흡수수지 고형 100중량부를 기준으로 하여 상기한 1차 가교제의 양은 0.1 내지 5중량부의 범위내이고 상기한 2차 가교제의 양은 0.005 내기 0.5중량부의 범위내인 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019930027967A 1992-12-16 1993-12-16 흡수수지의 제조방법 KR0137347B1 (ko)

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Application Number Priority Date Filing Date Title
JP4-336392 1992-12-16
JP4336392A JP2675729B2 (ja) 1992-12-16 1992-12-16 吸水性樹脂の製造方法

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KR940014468A true KR940014468A (ko) 1994-07-18
KR0137347B1 KR0137347B1 (ko) 1998-04-27

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US (1) US5422405A (ko)
EP (1) EP0605150B1 (ko)
JP (1) JP2675729B2 (ko)
KR (1) KR0137347B1 (ko)
DE (1) DE69314451T2 (ko)
ES (1) ES2106984T3 (ko)

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US5422405A (en) 1995-06-06
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DE69314451D1 (de) 1997-11-13

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