KR970006222A - 시멘트 분산제와 그 제조방법 및 이를 이용한 시멘트 조성물 - Google Patents

시멘트 분산제와 그 제조방법 및 이를 이용한 시멘트 조성물 Download PDF

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KR970006222A
KR970006222A KR1019960027964A KR19960027964A KR970006222A KR 970006222 A KR970006222 A KR 970006222A KR 1019960027964 A KR1019960027964 A KR 1019960027964A KR 19960027964 A KR19960027964 A KR 19960027964A KR 970006222 A KR970006222 A KR 970006222A
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cement
meth
monomer
represents hydrogen
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요시오 다나카
아키라 오타
츠요시 히라타
토루 우노
츠토무 유아사
히데유키 다하라
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아이다 겐지
가부시키가이샤 니혼쇼쿠바이
페. 레스, 하.아르. 하우스
산도즈 리미티드
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/04—Carboxylic acids; Salts, anhydrides or esters thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/24—Macromolecular compounds
    • C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B24/2641—Polyacrylates; Polymethacrylates
    • C04B24/2647—Polyacrylates; Polymethacrylates containing polyether side chains
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/24—Macromolecular compounds
    • C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B24/2641—Polyacrylates; Polymethacrylates
    • 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
    • C08F2/38—Polymerisation using regulators, e.g. chain terminating agents, e.g. telomerisation
    • 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
    • C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
    • C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
    • C08F290/06—Polymers provided for in subclass C08G
    • C08F290/062—Polyethers
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    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
    • C04B2103/302—Water reducers
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
    • C04B2103/308—Slump-loss preventing agents
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/40—Surface-active agents, dispersants
    • C04B2103/408—Dispersants
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00034—Physico-chemical characteristics of the mixtures
    • C04B2111/00189—Compositions or ingredients of the compositions characterised by analysis-spectra, e.g. NMR
    • 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
    • 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
    • C08F220/10—Esters
    • C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
    • C08F220/28—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety
    • C08F220/285—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety and containing a polyether chain in the alcohol moiety
    • C08F220/286—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety and containing a polyether chain in the alcohol moiety and containing polyethylene oxide in the alcohol moiety, e.g. methoxy polyethylene glycol (meth)acrylate

Abstract

폴리카르본산계 중합체로서, 그 분자량 분포를 특정함으로써 슬럼프 유지 성능과 감수 성능이 우수한 시멘트 분산제, 그 제조방법 및 이를 이용한 조성물을 제공한다. 중량평균분자량이 겔퍼미에이션 크로마토 그래피에 의한 폴리에틸렌 글리콘 환산으로 10,000~500,000의 범위내에 있으며, 또한 중량평균분자량으로부터 피크톱 분자량을 뺀 값이 0~8,000인 폴리카르본산계 중합체로 이루어진다.

Description

시멘트 분산제와 그 제조방법 및 이를 이용한 시멘트 조성물
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 시멘트 분산제(2)와 비교 시멘트 분산제(7)의 중량평균분자량을 나타낸 도면이다.

Claims (9)

  1. 폴리카르본산계 중합체 (A) 또는 그 염을 주성분으로 하는 시멘트 분산제로서, 상기 중합체 (A)의 중량평균 분자량이 겔퍼미에이션 크로마토그래피에 의한 폴리에틸렌 글리콜 환산으로 10,000~500,000의 범위내에 있으며, 또한 중량 평균 분자량으로부터 피크톱 분자량을 뺀 값이 0~8,000임을 특징으로 하는 시멘트 분산제.
  2. 제1항에 있어서, 상기 폴리카르본산계 중합체(A)가 하기 화학식(1):
    (단, 식 중 R1은 수소 혹은 메틸기를 나타내며, R2O는 탄소수 2~4의 옥시알킬렌기의 1종 또는 2종 이상의 혼합물을 나타내며, 2종 이상인 경우에는 블록상 혹은 랜덤상으로 부가해도 무방하며, R3은 수소 또는 탄소수 1~5의 알킬기를 나타내며, m은 옥시알킬렌기의 평균 부가 몰수를 나타내는 값으로 1~100의 정수를 나타낸다.)로 나타내어지는 (알콕시)폴리알킬렌글리콜 모노 (메타)아크릴산 에스테르계 단량체 (a) 5~98중량%, 하기 화학식(2):
    (단, 식 중 R4은 수소 혹은 메틸기를 나타내며, M1은 수소, 1가 금속, 2가 금속, 암모늄기 또는 유기아민기를 나타낸다)로 나타내어지는 (메타)아크릴산계 단량체 (b)95-2중량%, 및 이들 단량체와 공중합 가능한 다른 단량체 (c) 0~50중량%(단, (a), (b) 및 (c)의 합계는 100중량%)를 공중합하여 얻어지는 시멘트 분산제.
  3. 제2항에 있어서, 상기 (알콕시)폴리알키렌 글리콜 모노 (메타)아크릴산 에스테르계 단량체(a)가 (메톡시)폴리에틸렌 글리콜 모노 (메타)아크릴레이트이며, 상기 (메타)아크릴산계 단량체(b)가 (메타)아크릴산인 것을 특징으로 하는 시멘트 분산제.
  4. 제1항 또는 제2항에 있어서, 상기 중합체(A)의 시멘트 입자에의 흡착율이 시멘트에 대해서 0.2중량% 첨가했을 때, 실온하 5분간에 60% 미만인 것을 특징으로 하는 시멘트 분산제.
  5. 제1항 또는 제2항에 있어서, 상기 중합체(A)의 시멘트 입자에의 흡착율이 시멘트에 대해서 0.2중량% 첨가했을 때, 실온하 5분간에 60% 이상인 것을 특징으로 하는 시멘트 분산제.
  6. 불포화 카르본산계 단량체를 필수 성분으로 하는 단량체 혼합물(Ⅰ)의 사용량이 사용하는 원료의 전량에 대해서 10~28중량%의 범위내이며, 중합 온도가 단량체 혼합물(Ⅰ)의 흐림점 이하의 온도이며, 또한 단량체 혼합물(Ⅰ)의 중화율이 0~20몰%의 범위내의 조건에서 이 단량체 혼합물(Ⅰ)을 물을 포함하는 반응 용기에 적하함으로써 중합 반응을 행하는 것을 특징으로 하는 시멘트 분산제의 제조방법.
  7. 불포화 카르본산계 단량체를 필수성분으로 하는 단량체 혼합물(Ⅰ)의 중화율이 0~20몰%의 범위내이고, 또한 이 단량체 혼합물(Ⅰ)을 미리 연쇄이동제와 혼합한 후에 물을 포함하는 반응 용기에 적하함으로써 중합 반응을 행하는 것을 특징으로 하는 시멘트 분산제의 제조방법.
  8. 제6항 또는 제7항에 있어서, 단량체 혼합물(Ⅰ)이 하기 화학식(1):
    (단, 식 중 R1은 수소 혹은 메틸기를 나타내며, R2O는 탄소수 2~4의 옥시알킬렌기의 1종 또는 2종 이상의 혼합물을 나타내며, 2종 이상인 경우에는 블록상 혹은 랜덤상으로 부가해도 무방하며, R3은 수소 또는 탄소수 1~5의 알킬기를 나타내며, m은 옥시알킬렌기의 평균 부가 몰수를 나타내는 값으로 1~100의 정수를 나타낸다.)로 나타내는 (알콕시)폴리알킬렌글리콜 모노 (메타)아크릴산 에스테르계 단량체 (a) 5~98중량%, 하기 화학식 (2):
    (단, 식 중 R4은 수소 혹은 메틸기를 나타내며, M1은 수소, 1가 금속, 2가 금속, 암모늄기 또는 유기아민기를 나타낸다)로 나타내어지는 (메타)아크릴산계 단량체 (b) 95-2중량%, 및 이들 단량체와 공중합 가능한 다른 단량체 (c) 0~50중량%(단, (a), (b) 및 (c)의 합계는 100중량%)로 이루어진 시멘트 분산제의 제조방법.
  9. 적어도 시멘트, 물 및 시멘트 분산제를 함유하는 시멘트 조성물로서, 청구항 1 또는 2에 기재된 시멘트 분산제를 함유하여 이루어진 시멘트 조성물.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960027964A 1995-07-13 1996-07-11 시멘트분산제와그제조방법및이를이용한시멘트조성물 KR100247526B1 (ko)

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JP7-177523 1995-07-13
JP17752595 1995-07-13
JP7-177524 1995-07-13
JP17752495 1995-07-13
JP7-177525 1995-07-13
JP17752395 1995-07-13

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KR100247526B1 KR100247526B1 (ko) 2000-03-15

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EP (2) EP0753488B1 (ko)
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AU (1) AU701940B2 (ko)
CA (1) CA2180989C (ko)
DE (1) DE69620832T2 (ko)
ES (1) ES2173999T3 (ko)
MY (1) MY114306A (ko)
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KR100219853B1 (ko) * 1997-05-29 1999-09-01 손진익 소포성의 시멘트 분산제
KR100615640B1 (ko) * 2004-06-03 2006-08-25 (주) 청도정밀화학 개선된 고성능 콘크리트 분산제와 그 제조방법
US9126867B2 (en) 2012-08-21 2015-09-08 Lg Chem, Ltd. Additive including polycarboxylic copolymer and cement composition comprising the same

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US6136950A (en) * 1997-09-23 2000-10-24 Mbt Holding Ag Highly efficient cement dispersants
FR2780396B1 (fr) 1998-06-30 2000-08-04 Coatex Sa Nouveaux agents de type polycondensat pour ameliorer la maniabilite des liants hydrauliques, leur procede de preparation, les liants les contenant et leurs applications
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EP1052232A4 (en) * 1998-11-30 2003-03-19 Taiheiyo Cement Corp METHOD FOR PRODUCING A DISPERSING AGENT FOR POWDERED HYDRAULIC COMPOSITION
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DE69620832D1 (de) 2002-05-29
US6376581B1 (en) 2002-04-23
US6187841B1 (en) 2001-02-13
MY114306A (en) 2002-09-30
CN1154953A (zh) 1997-07-23
CA2180989A1 (en) 1997-01-14
EP1142847A3 (en) 2003-09-10
EP0753488B1 (en) 2002-04-24
ES2173999T3 (es) 2002-11-01
EP1142847A2 (en) 2001-10-10
EP0753488A3 (en) 1997-04-02
DE69620832T2 (de) 2002-11-07
CN1104391C (zh) 2003-04-02
TW346479B (en) 1998-12-01
AU6051696A (en) 1997-01-23
AU701940B2 (en) 1999-02-11
EP0753488A2 (en) 1997-01-15
KR100247526B1 (ko) 2000-03-15
CA2180989C (en) 2003-06-24

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