DE69518423T2 - Kontinuierliches Verfahren zur Herstellung von sehr stabilen, feinstteiligen, niedrig viskösen Polymerpolyolen mit niedriger durchmittlicher Teilchengrösse - Google Patents

Kontinuierliches Verfahren zur Herstellung von sehr stabilen, feinstteiligen, niedrig viskösen Polymerpolyolen mit niedriger durchmittlicher Teilchengrösse

Info

Publication number
DE69518423T2
DE69518423T2 DE69518423T DE69518423T DE69518423T2 DE 69518423 T2 DE69518423 T2 DE 69518423T2 DE 69518423 T DE69518423 T DE 69518423T DE 69518423 T DE69518423 T DE 69518423T DE 69518423 T2 DE69518423 T2 DE 69518423T2
Authority
DE
Germany
Prior art keywords
reactor
macromer
polyol
polymer
process according
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 - Fee Related
Application number
DE69518423T
Other languages
German (de)
English (en)
Other versions
DE69518423D1 (de
Inventor
Dr. Dietrich
Dr. Heinemann
Dr. Jacobs
Dr. Kratz
Dr. Sanders
Dr. Woynar
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.)
Covestro Deutschland AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of DE69518423D1 publication Critical patent/DE69518423D1/de
Application granted granted Critical
Publication of DE69518423T2 publication Critical patent/DE69518423T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40High-molecular-weight compounds
    • C08G18/63Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers
    • C08G18/635Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers onto unsaturated polymers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F283/00Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
    • C08F283/06Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F290/00Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
    • C08F290/02Macromolecular 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
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F290/00Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
    • C08F290/02Macromolecular 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
    • C08F290/04Polymers provided for in subclasses C08C or C08F
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00Foam properties
    • C08G2110/0008Foam properties flexible
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00Foam properties
    • C08G2110/0016Foam properties semi-rigid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Graft Or Block Polymers (AREA)
  • Polymerisation Methods In General (AREA)
  • Macromonomer-Based Addition Polymer (AREA)
  • Polyethers (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
DE69518423T 1995-10-10 1995-10-10 Kontinuierliches Verfahren zur Herstellung von sehr stabilen, feinstteiligen, niedrig viskösen Polymerpolyolen mit niedriger durchmittlicher Teilchengrösse Expired - Fee Related DE69518423T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95115940A EP0768324B1 (en) 1995-10-10 1995-10-10 Continuous process for the preparation of highly stable, finely divided, low viscosity polymer polyols of small average particle size

Publications (2)

Publication Number Publication Date
DE69518423D1 DE69518423D1 (de) 2000-09-21
DE69518423T2 true DE69518423T2 (de) 2000-12-14

Family

ID=8219706

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69518423T Expired - Fee Related DE69518423T2 (de) 1995-10-10 1995-10-10 Kontinuierliches Verfahren zur Herstellung von sehr stabilen, feinstteiligen, niedrig viskösen Polymerpolyolen mit niedriger durchmittlicher Teilchengrösse

Country Status (11)

Country Link
US (1) US5814699A (https=)
EP (1) EP0768324B1 (https=)
JP (1) JPH09124750A (https=)
KR (1) KR100433147B1 (https=)
CN (1) CN1069654C (https=)
BR (1) BR9605032A (https=)
CA (1) CA2187125A1 (https=)
DE (1) DE69518423T2 (https=)
ES (1) ES2148397T3 (https=)
MX (1) MX9604686A (https=)
TW (1) TW375618B (https=)

Families Citing this family (77)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10198539A (ja) * 1997-01-08 1998-07-31 Fuji Xerox Co Ltd 画像形成装置および画像形成方法
US6013731A (en) * 1997-12-16 2000-01-11 Arco Chemical Technology L.P. Stabilizer based on high molecular weight polyols having low monol content for polymer polyol production
DE19903390A1 (de) 1999-01-29 2000-08-03 Bayer Ag Stabilisierte, feindisperse niedrigviskose Polymerpolyole mit einem hohen Gehalt an Polystyrol oder Polystyrol-Copolymerisaten
US6624209B2 (en) 1999-07-30 2003-09-23 Sanyo Chemical Industries, Ltd. Polymer polyol composition, process for producing the same, and process for producing polyurethane resin
US6756414B2 (en) * 1999-07-30 2004-06-29 Sanyo Chemical Industries, Ltd. Polymer polyol composition, process for producing the same, and process for producing polyurethane resin
CA2325972A1 (en) * 1999-11-24 2001-05-24 Dainippon Ink And Chemicals, Inc. Compatibilizing agent, radical copolymerizable unsaturated resin composition, molding material, and molded article
JP4782940B2 (ja) * 2001-04-27 2011-09-28 株式会社日本触媒 親水性グラフト重合体の製造方法
AU2003215659A1 (en) * 2002-03-15 2003-09-29 Basf Aktiengesellschaft Graft polyols with a bimodal particle size distribution and method for producing graft polyols of this type, in addition to the use thereof for producing polyurethanes
US20050245724A1 (en) * 2002-04-10 2005-11-03 Sanyo Chemical Industries, Ltd. Process for production of polymer polyol, and polymer polyol
US8017664B2 (en) 2002-05-22 2011-09-13 Shell Oil Company Process for preparing polymer polyols
US7148288B2 (en) * 2003-06-27 2006-12-12 Basf Corporation Process for formation of preformed stabilizer polyols
US8470927B2 (en) * 2004-02-26 2013-06-25 Bayer Materialscience Llc Process for production of polymer polyols
DE102004017294A1 (de) * 2004-04-05 2005-10-20 Basf Ag Verfahren zur Herstellung von Polyurethan-Schaumstoffen
US20050239968A1 (en) * 2004-04-23 2005-10-27 Heyman Duane A Process for preparing graft polyols using enol ethers as reaction moderators
US7759423B2 (en) * 2004-08-02 2010-07-20 Bayer Materialscience Llc Polymer polyols with ultra-high solids contents
US7179882B2 (en) * 2004-08-02 2007-02-20 Bayer Materialscience Llc Low viscosity polymer polyols
US7160975B2 (en) * 2004-08-02 2007-01-09 Bayer Materialscience Llc Methacrylates as stabilizers for polymer polyols
EP3342825A1 (en) 2005-07-07 2018-07-04 Sanyo Chemical Industries, Ltd. Method for producing polymer polyol
JP5177614B2 (ja) * 2005-07-07 2013-04-03 三洋化成工業株式会社 微粒子分散ポリオール組成物およびポリウレタン樹脂の製法
US20070060690A1 (en) 2005-09-09 2007-03-15 Bayer Materialscience Llc Low viscosity polymer polyols characterized by a high hydroxyl number
US20080071056A1 (en) * 2006-09-14 2008-03-20 Borst Joseph P Method of forming a graft polyol and polyurethane article formed from the graft polyol
US7776969B2 (en) 2006-12-04 2010-08-17 Bayer Materialscience Llc Allophanate-modified stabilizers and the polymer polyols prepared from these stabilizers
CN101809086B (zh) 2007-09-28 2012-10-10 三洋化成工业株式会社 聚合物多元醇、其制造方法以及聚氨酯树脂的制造方法
JP4851503B2 (ja) * 2007-10-10 2012-01-11 三洋化成工業株式会社 微粒子分散ポリオールの製造方法及びポリウレタン樹脂の製造方法
US20090163613A1 (en) * 2007-12-20 2009-06-25 Guelcher Scott A Polymer polyols with improved properties and a process for their production
WO2009112392A1 (de) * 2008-03-10 2009-09-17 Basf Se Verbundformteil insbesondere für den möbelbau
JP5734850B2 (ja) * 2008-07-25 2015-06-17 ビーエーエスエフ ソシエタス・ヨーロピアBasf Se リグノセルロース性生成物及び該リグノセルロース性生成物を形成する方法
US10239985B2 (en) 2008-12-23 2019-03-26 Covestro Llc Polymer polyols comprising a natural oil base polyol, polyurethane foams comprising these polymer polyols and processes for their preparation
US8303680B2 (en) 2009-06-24 2012-11-06 Basf Se Encapsulated particle
KR20130137142A (ko) * 2010-08-03 2013-12-16 쉘 인터내셔날 리써취 마트샤피지 비.브이. 중합체 폴리올의 제조 방법
US8946313B2 (en) * 2011-12-16 2015-02-03 Bayer Materialscience Llc Hybrid PHD/PMPO polyols for polyurethane foam applications
US10066047B2 (en) 2012-02-02 2018-09-04 Covestro Llc Polyurethane foams with decreased aldehyde emissions, a process for preparing these foams and a method for decreasing aldehyde in polyurethane foams
US8835565B2 (en) * 2012-04-18 2014-09-16 Bayer Materialscience Llc Preformed stabilizers useful for the production of polymer polyols and polymer polyols produced therefrom
US9163099B2 (en) 2013-03-08 2015-10-20 Bayer Materialscience Llc Polybutadiene modified polymer polyols, foams prepared from polybutadiene modified polymer polyols, and processes for the production thereof
US8987396B2 (en) 2013-03-15 2015-03-24 Bayer Materialscience Llc Active polymer polyols and a process for their production
CN103408704B (zh) * 2013-05-07 2015-07-29 江苏长华聚氨酯科技有限公司 制备高稳定性聚合物多元醇的连续方法
CA2925748C (en) 2013-09-30 2021-09-14 Basf Se Lignocellulosic composite articles
EP2894180A1 (en) 2014-01-08 2015-07-15 Bayer MaterialScience AG Polymer Polyols comprising a Polyether Carbonate Polyol as the Base Polyol
HUE050534T2 (hu) * 2014-04-30 2020-12-28 Basf Se Eljárás polimer poliol elõállítására
EP3137527B1 (en) * 2014-04-30 2023-11-22 Basf Se Stabilizer for polymer polyol production processes
CN104211906A (zh) * 2014-08-05 2014-12-17 滁州宝瑞橡胶制品有限公司 一种汽车用高回弹坐垫
CN104292681B (zh) * 2014-09-24 2018-04-13 中国石油化工股份有限公司 聚合物多元醇粒度调节剂及其制备方法
CN105585652B (zh) * 2014-10-20 2018-12-04 中国石油化工股份有限公司 预制稳定剂的制备方法及由其制备聚合物多元醇的方法
US9951174B2 (en) 2015-05-20 2018-04-24 Covestro Llc Polyol compositions, a process for the production of these polyol compositions, and their use in the production of open celled polyurethane foams having high airflow
US9505881B1 (en) 2015-06-10 2016-11-29 Covestro Llc Polymer polyol compositions, a process for preparing these novel polymer polyol compositions, flexible foams prepared from these novel polymer polyols and a process for the preparation of these flexible foams
CN106589251B (zh) * 2015-10-20 2019-04-12 中国石油化工集团公司 一种连续制备聚合物多元醇的方法
US11312811B2 (en) 2016-04-26 2022-04-26 Covestro Llc Flexible foam using polymer polyols produced via DMC catalyzed polyols
CN106188425B (zh) * 2016-07-30 2018-06-22 山东隆华新材料股份有限公司 无需脱除链转移剂法生产的pop及其生产方法
US10040903B2 (en) 2016-09-13 2018-08-07 Covestro Llc Polymer polyol quality
US10767008B2 (en) 2017-01-16 2020-09-08 Covestro Llc Polymer polyols comprising amine based polyether polyols and a process for preparing these polymer polyols
WO2018169833A1 (en) 2017-03-15 2018-09-20 Covestro Llc Viscoelastic polyurethane foams with reduced temperature sensitivity
US10766998B2 (en) 2017-11-21 2020-09-08 Covestro Llc Flexible polyurethane foams
US10479862B2 (en) 2017-12-07 2019-11-19 Covestro Llc Amine based polymer polyol stabilizers
CN108003297B (zh) * 2017-12-12 2020-04-10 万华化学集团股份有限公司 一种聚合物多元醇的制备方法及其制备的聚合物多元醇
US10526484B2 (en) 2017-12-20 2020-01-07 Covestro Llc Dithiocarbonate containing polyols as polymer polyol stabilizers
KR101998849B1 (ko) * 2018-03-02 2019-07-11 금호석유화학 주식회사 저점도를 갖는 고고형분 폴리머 폴리올의 제조방법
CN108559033B (zh) * 2018-04-10 2021-02-26 长华化学科技股份有限公司 大分子稳定剂预聚体的制备方法
CN108570130B (zh) * 2018-04-10 2021-04-13 长华化学科技股份有限公司 高性能聚合物多元醇的制备方法
WO2019222490A1 (en) 2018-05-16 2019-11-21 Basf Se Wood composite articles
US20210253861A1 (en) 2018-08-28 2021-08-19 Basf Se Lignocellulosic composite articles
US10793692B2 (en) 2018-10-24 2020-10-06 Covestro Llc Viscoelastic flexible foams comprising hydroxyl-terminated prepolymers
US10851239B2 (en) 2018-11-07 2020-12-01 Covestro Llc Ethylenically unsaturated macromers produced from a residue of isocyanate manufacturing, related preformed stabilizers, polymer polyols, foam-forming compositions and foams
US10781310B2 (en) 2019-02-08 2020-09-22 Covestro Llc Polymer polyol stabilizers
CN118358014A (zh) 2019-03-15 2024-07-19 巴斯夫欧洲公司 木质纤维素复合制品
US20240025094A1 (en) 2019-10-09 2024-01-25 Covestro Llc Methods, systems and computer program products for producing polyurethane foam products using optical and infrared imaging
US11421063B2 (en) 2019-10-10 2022-08-23 Covestro Llc Preformed stabilizers with improved stability
CN113557251B (zh) * 2020-02-25 2024-02-20 雷普索尔有限公司 用于制备聚合物多元醇的方法
PT3872110T (pt) 2020-02-25 2022-06-22 Repsol Sa Processo para preparar polióis poliméricos
KR102401573B1 (ko) * 2020-10-23 2022-05-25 금호석유화학 주식회사 폴리머 폴리올의 제조방법
CN112851878A (zh) * 2021-01-08 2021-05-28 福建省天骄化学材料有限公司 一种高固含量聚合物多元醇及其制备方法
US11572433B2 (en) 2021-03-12 2023-02-07 Covestro Llc In-situ formed polyols, a process for their preparation, foams prepared from these in-situ formed polyols and a process for their preparation
US11866543B2 (en) 2021-05-06 2024-01-09 Covestro Llc Glycidyl (meth)acrylate polymer polyol stabilizers
US11718705B2 (en) 2021-07-28 2023-08-08 Covestro Llc In-situ formed polyether polyols, a process for their preparation, and a process for the preparation of polyurethane foams
US11952454B2 (en) 2021-10-18 2024-04-09 Covestro Llc Processes and production plants for producing polymer polyols
CN114644733B (zh) * 2022-02-16 2024-11-12 万华化学集团股份有限公司 一种聚合物多元醇制备方法
KR102832049B1 (ko) * 2022-06-14 2025-07-10 금호석유화학 주식회사 폴리머 폴리올 및 그 제조방법
EP4674524A1 (en) 2024-07-02 2026-01-07 Covestro LLC Processes for producing polymer polyols

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4148840A (en) * 1978-03-29 1979-04-10 Union Carbide Corporation Polymer/polyol compositions made from preformed polymer/polyols, processes for making same and processes for making polyurethane products therefrom
JPS54133582A (en) * 1978-04-07 1979-10-17 Mitsui Nisso Urethane Preparation of polymerpolyol
US4242249A (en) * 1979-04-03 1980-12-30 Union Carbide Corporation Polymer/polyols via non-aqueous dispersion stabilizers
US4454255A (en) * 1982-04-01 1984-06-12 Basf Wyandotte Corporation Process for the preparation of white graft polymer dispersions and flame-retardant polyurethane foams
US4690956A (en) * 1982-04-01 1987-09-01 Basf Corporation Process for the preparation of graft polymer dispersions and flame-retardant polyurethane foams
USRE33291E (en) * 1982-04-01 1990-08-07 Basf Corporation Process for the preparation of white graft polymer dispersions and flame-retardant polyurethane foams
US4689354A (en) * 1982-04-01 1987-08-25 Basf Corporation Process for the preparation of white graft polymer dispersions and flame-retardant polyurethane foams
US4458038A (en) * 1982-04-01 1984-07-03 Basf Wyandotte Corporation Process for the preparation of white graft polymer dispersions and flame-retardant polyurethane foams
US4550194A (en) * 1982-04-01 1985-10-29 Basf Wyandotte Corporation Process for the preparation of polyether-ester polyols
DE3612376A1 (de) * 1986-04-12 1987-10-15 Basf Ag Verfahren zum herstellen kleinteiliger homo- und copolymerisate des ethens unter verwendung eines fluessigen alkans als reaktionsmedium
US4956427A (en) * 1988-12-23 1990-09-11 Union Carbide Chemicals And Plastics Company Inc. Process for reducing polymer build-up in polymerization equipment during polymerization of alpha-olefins
US4960956A (en) * 1989-05-09 1990-10-02 Shell Oil Company Modified bisphenols having at least one arylcyclobutenealkyl moiety and cured products therefrom
US5223570A (en) * 1990-02-07 1993-06-29 Basf Corporation Method for the preparation of graft polymer dispersions having broad particle size distribution without wildly fluctuating viscosities
US5364906A (en) * 1993-08-20 1994-11-15 Arco Chemical Technology, L.P. Low viscosity polymer polyols with improved dispersion stability
DE4431226A1 (de) * 1994-09-02 1996-03-07 Bayer Ag Niedrigviskose, stabile agglomeratfreie Polymerpolyole, ein Verfahren zu ihrer Herstellung und ihre Verwendung zur Herstellung von Polyurethankunststoffen

Also Published As

Publication number Publication date
DE69518423D1 (de) 2000-09-21
EP0768324A1 (en) 1997-04-16
CN1160061A (zh) 1997-09-24
CA2187125A1 (en) 1997-04-11
US5814699A (en) 1998-09-29
KR100433147B1 (ko) 2004-09-24
JPH09124750A (ja) 1997-05-13
ES2148397T3 (es) 2000-10-16
TW375618B (en) 1999-12-01
KR970021113A (ko) 1997-05-28
MX9604686A (es) 1998-04-30
BR9605032A (pt) 1998-06-30
EP0768324B1 (en) 2000-08-16
CN1069654C (zh) 2001-08-15

Similar Documents

Publication Publication Date Title
DE69518423T2 (de) Kontinuierliches Verfahren zur Herstellung von sehr stabilen, feinstteiligen, niedrig viskösen Polymerpolyolen mit niedriger durchmittlicher Teilchengrösse
DE602005004457T2 (de) Polymer Polyole mit sehr hohem Feststoffgehalt
EP0755953B1 (de) Niedrigviskose Polymerpolyole, ein Verfahren zu ihrer Herstellung sowie ihre Verwendung zur Herstellung von Polyurethanschaumstoffen
DE3751216T2 (de) Stabilisierungsmittel für Polymer/Polyol.
EP0699693B1 (de) Niedrigviskose, stabile, agglomeratfreie Polymerpolyole, ein Verfahren zu ihrer Herstellung und ihre Verwendung zur Herstellung von Polyurethankunststoffen
DE69516517T2 (de) Verfahren zur herstellung eines polyurethan-weichschaumstoffes
DE3048435C2 (de) Verfahren zur Herstellung von polymerem Polyol
EP1487895B1 (de) Graftpolyole mit bimodaler teilchengrössenverteilung und verfahren zur herstellung solcher graftpolyole sowie deren verwendung zur herstellung von polyurethanen
DE3819940C2 (https=)
DE69804507T3 (de) Polyurethanschaumstoff für schuhsohlen
DE1222669B (de) Verfahren zur Herstellung von Polyurethanen unter Formgebung
EP0296449A1 (de) Verfahren zur Herstellung von kalthärtenden Polyurethan-Weichformschaumstoffen
MXPA96004686A (en) Continuous process for finely divided, low viscosity, small average particle size, highly stable polymeric polyols preparation
DE2609355A1 (de) Polymerisat-polyaetherisocyanat- vorpolymerisat-zusammensetzung, verfahren zu ihrer herstellung und ihrer verwendung
DE19533164A1 (de) Niedrigviskose Polymerpolyole, ein Verfahren zu ihrer Herstellung sowie ihre Verwendung zur Herstellung von Polyurethanschaumstoffen
DE68913916T2 (de) Pfropfstabilisator- und Vorstabilator-Copolymerisate, ihre Herstellung, Verfahren zur Herstellung von Polymer-Polyol-Dispersionen und Verfahren zur Herstellung von Polyurethanschäumen.
EP0731118B1 (de) Niedrigviskose Polymerpolyole, ein Verfahren zu ihrer Herstellung sowie ihre Verwendung zur Herstellung von Polyurethanschaumstoffen
DE2505680A1 (de) Verfahren zur herstellung eines polymermodifizierten polyols
WO1998038233A1 (de) Elastische biuret-modifizierte polyurethanschaumstoffe sowie ein verfahren zu ihrer herstellung
DE2538116A1 (de) Fluessige polymer/polyol-praeparate
EP0780410A1 (de) Niedrigviskose Polymerpolyole, ein Verfahren zu ihrer Herstellung sowie ihre Verwendung zur Herstellung von Polyurethanschaumstoffen
EP0554721A1 (de) Verfahren zur Herstellung von elastischen, offenzelligen PUR-Weichschaumstoffen
EP0855415A1 (de) Niedrigviskose Polymerpolyole, ein Verfahren zu ihrer Herstellung sowie ihre Verwendung zur Herstellung von Polyurethanschaumstoffen
DE2657413A1 (de) Verfahren zur herstellung eines polyurethanschaumstoffs mit hoher elastizitaet
EP0472896B1 (de) Verfahren zur Herstellung von hochelastischen Polyurethan-Weichschaumstoffen und deren Verwendung als Polstermaterial

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: BAYER MATERIALSCIENCE AG, 51373 LEVERKUSEN, DE

8339 Ceased/non-payment of the annual fee