CN100369951C - 功能性聚醚的制备 - Google Patents
功能性聚醚的制备 Download PDFInfo
- Publication number
- CN100369951C CN100369951C CNB98808564XA CN98808564A CN100369951C CN 100369951 C CN100369951 C CN 100369951C CN B98808564X A CNB98808564X A CN B98808564XA CN 98808564 A CN98808564 A CN 98808564A CN 100369951 C CN100369951 C CN 100369951C
- Authority
- CN
- China
- Prior art keywords
- polyethers
- preparation
- unsaturation
- unsaturated
- acid
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
- C08G65/2696—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds characterised by the process or apparatus used
-
- 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
- C04B24/2664—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of ethylenically unsaturated dicarboxylic acid polymers, e.g. maleic anhydride copolymers
- C04B24/267—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of ethylenically unsaturated dicarboxylic acid polymers, e.g. maleic anhydride copolymers 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
- C08G65/2603—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen
- C08G65/2615—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen the other compounds containing carboxylic acid, ester or anhydride groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
- C08G65/2642—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds characterised by the catalyst used
- C08G65/2645—Metals or compounds thereof, e.g. salts
- C08G65/2663—Metal cyanide catalysts, i.e. DMC's
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Health & Medical Sciences (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Toxicology (AREA)
- Polyethers (AREA)
- Graft Or Block Polymers (AREA)
- Polymerisation Methods In General (AREA)
- Macromonomer-Based Addition Polymer (AREA)
Abstract
Description
Claims (33)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/918,081 US5854386A (en) | 1997-08-25 | 1997-08-25 | Stabilizers for polymer polyols |
US08/918,081 | 1997-08-25 | ||
US09/074,673 | 1998-05-08 | ||
US09/074,673 US6034208A (en) | 1997-08-25 | 1998-05-08 | Copolymers useful as cement additives and a process for their preparation |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1310735A CN1310735A (zh) | 2001-08-29 |
CN100369951C true CN100369951C (zh) | 2008-02-20 |
Family
ID=26755919
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB98808564XA Expired - Lifetime CN100369951C (zh) | 1997-08-25 | 1998-08-24 | 功能性聚醚的制备 |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP1012203B1 (zh) |
JP (1) | JP2001514280A (zh) |
CN (1) | CN100369951C (zh) |
AU (1) | AU742676B2 (zh) |
BR (1) | BR9813009A (zh) |
CA (1) | CA2294359C (zh) |
DE (1) | DE69825168T2 (zh) |
ES (1) | ES2224433T3 (zh) |
TW (1) | TW515811B (zh) |
WO (1) | WO1999010407A1 (zh) |
Families Citing this family (45)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6642423B2 (en) | 1999-07-09 | 2003-11-04 | Dow Global Technologies, Inc. | Polymerization of ethylene oxide using metal cyanide catalysts |
BR0013193A (pt) * | 1999-07-09 | 2002-07-02 | Dow Chemical Co | Polimerização de óxido de etileno usando catalisadores de cianeto metálico |
KR20020030779A (ko) * | 1999-07-09 | 2002-04-25 | 그래햄 이. 테일러 | 금속 시안화물 촉매와 불포화 개시제 화합물을 사용하는알킬렌 옥사이드의 중합 |
US6214958B1 (en) * | 1999-07-21 | 2001-04-10 | Arco Chemical Technology, L.P. | Process for preparing comb-branched polymers |
JP3327901B2 (ja) * | 1999-10-08 | 2002-09-24 | 竹本油脂株式会社 | ポリエーテルエステル単量体の製造方法 |
FR2814465A1 (fr) * | 2000-09-27 | 2002-03-29 | Synthron | Polymere acrylique greffe, solutions aqueuses de ceux-ci et leur utilisation comme agent fluidifiant et/ou agent reducteur d'eau dans des compositions a base de ciment hydraulique |
DE10117273A1 (de) * | 2001-04-06 | 2002-10-17 | Basf Ag | Verfahren zur Herstellung von Hydroxyalkylcarbonsäureestern |
US6527850B2 (en) * | 2001-04-11 | 2003-03-04 | Arco Chemical Technology L.P. | Use of comb-branched copolymers in gypsum compositions |
DE10205086A1 (de) † | 2002-02-07 | 2003-08-21 | Basf Ag | Verfahren zur Aktivierung von Doppelmetallcyanid-Verbindungen |
DE10331450A1 (de) * | 2003-07-10 | 2005-01-27 | Basf Ag | (Meth)acrylsäureester monoalkoxilierter Polyole und deren Herstellung |
DE10331456A1 (de) * | 2003-07-10 | 2005-02-24 | Basf Ag | (Meth)acrylsäureester alkoxilierter ungesättigter Polyolether und deren Herstellung |
US20050085613A1 (en) * | 2003-10-16 | 2005-04-21 | Adkins Rick L. | Novel unsaturated macromers for preformed stabilizers and polymer polyols |
WO2007026842A1 (ja) * | 2005-08-31 | 2007-03-08 | Nippon Shokubai Co., Ltd. | ポリアルキレングリコール類 |
CN100526248C (zh) * | 2006-04-30 | 2009-08-12 | 江苏博特新材料有限公司 | 减缩、抗裂型接枝共聚物混凝土超塑化剂及其制备方法 |
US20070299242A1 (en) * | 2006-06-21 | 2007-12-27 | Bayer Materialscience Llc | Pendant acrylate and/or methacrylate-containing polyether monols and polyols |
DE502007003544D1 (de) | 2006-10-19 | 2010-06-02 | Basf Se | Verfahren zur herstellung von superabsorbern |
DE102006049803A1 (de) * | 2006-10-23 | 2008-04-30 | Clariant International Limited | Hydroxyfunktionelle, copolymerisierbare Polyalkylenglykol-Makromonomere, deren Herstellung und Verwendung |
DE102006049804A1 (de) * | 2006-10-23 | 2008-04-24 | Clariant International Limited | Wasserlösliche hydroxyfunktionelle, copolymerisierbare Polyalkylenglykol-Makromonomere, deren Herstellung und Verwendung |
CN101164957B (zh) * | 2007-08-28 | 2010-11-03 | 南京博特建材有限公司 | 一种制备聚羧酸系混凝土外加剂专用聚醚的方法 |
DE102007045230A1 (de) * | 2007-09-21 | 2009-04-09 | Clariant International Limited | Polycarboxylatether als Dispergiermittel für anorganische Pigmentformulierungen |
DE102007057147A1 (de) | 2007-11-28 | 2009-06-04 | Evonik Goldschmidt Gmbh | Verfahren zur Alkoxylierung mit DMC-Katalysatoren im Schlaufenreaktor mit Strahlsauger |
KR101077303B1 (ko) * | 2009-05-06 | 2011-10-26 | 삼성전기주식회사 | 기판 형성용 조성물, 및 이를 이용한 프리프레그 및 기판 |
JP5571795B2 (ja) | 2009-10-16 | 2014-08-13 | ダウ グローバル テクノロジーズ エルエルシー | ダイヤモンドワイヤーソーと共に使用する水性切削液 |
WO2011044717A1 (en) | 2009-10-16 | 2011-04-21 | Dow Global Technologies Llc | Polyalkylene glycol-grafted polycarboxylate suspension and dispersing agent for cutting fluids and slurries |
FR2961211B1 (fr) * | 2010-06-10 | 2012-07-27 | Coatex Sas | Polymeres peignes (meth)acryliques a fonction hydroxy polyalkylene glycol, leur utilisation comme agent rheofluidifiant dans des sauces de couchage et sauces les contenant. |
CN101983975B (zh) * | 2010-10-21 | 2012-09-19 | 安徽中铁工程材料科技有限公司 | 聚羧酸减水剂的制备方法 |
FR2973241B1 (fr) * | 2011-03-28 | 2013-04-19 | Coatex Sas | Polymeres peignes pour les cheveux |
CN102617065B (zh) * | 2012-03-06 | 2013-11-13 | 上海市建筑科学研究院(集团)有限公司 | 一种具有保坍性能的多支链聚羧酸减水剂及其制备方法 |
EP2671893A1 (de) | 2012-06-06 | 2013-12-11 | Bayer MaterialScience AG | Verfahren zur Herstellung von Omega-Hydroxy-Aminopolymeren |
CN102993432B (zh) * | 2012-10-19 | 2015-05-20 | 江苏苏博特新材料股份有限公司 | 一种减水剂中间体、其制备方法及由其制备的减水剂 |
CN103865053A (zh) * | 2012-12-10 | 2014-06-18 | 辽宁奥克化学股份有限公司 | 一种端烯基不饱和酸/酯聚氧烷基醚及其制备方法和应用 |
CN104710606A (zh) * | 2013-12-12 | 2015-06-17 | 辽宁奥克化学股份有限公司 | 一种端烯基聚醚酯及其制备方法、用该聚醚酯制得的减水剂及其制备方法 |
CN104725227B (zh) * | 2013-12-18 | 2017-03-01 | 辽宁奥克化学股份有限公司 | 一种不饱和羧酸单酯、其制备方法和应用、及其作为聚合单体所得的聚羧酸减水剂 |
CN104193985B (zh) * | 2014-09-09 | 2017-05-17 | 江苏苏博特新材料股份有限公司 | 一种聚羧酸减水剂用酯化大单体的制备方法 |
CN107382129B (zh) * | 2017-08-14 | 2020-04-24 | 联泓(江苏)新材料研究院有限公司 | 聚羧酸减水剂及其制备方法和水泥掺混物 |
EP3489278A1 (de) * | 2017-11-23 | 2019-05-29 | Covestro Deutschland AG | Hochmolekulare polyoxyalkylene mit tiefer glastemperatur hergestellt nach der grafting-through-methode |
CN112004849A (zh) * | 2018-05-31 | 2020-11-27 | Sika技术股份公司 | 用于制备明确限定的梳形聚合物的方法 |
WO2021157320A1 (ja) * | 2020-02-07 | 2021-08-12 | 日油株式会社 | ポリアルキレングリコールモノ(メタ)アクリレートおよびその重合体、並びにフィルム用組成物 |
PL3872110T3 (pl) | 2020-02-25 | 2022-07-11 | Repsol, S.A. | Proces przygotowania polioli polimerowych |
CN112094404A (zh) * | 2020-09-30 | 2020-12-18 | 浙江皇马科技股份有限公司 | 一种低钾钠含量的烯丙醇聚醚制备工艺 |
WO2022096508A1 (en) | 2020-11-04 | 2022-05-12 | Repsol, S.A. | Stabilizer based on polyol peroxide and process for making polymer polyols |
EP4174109A1 (en) * | 2021-09-15 | 2023-05-03 | Sumitomo Seika Chemicals Co., Ltd. | Polyalkylene oxide, solid preparation-use composition and method for manufacturing same, and controlled release preparation-use composition |
WO2023042534A1 (ja) * | 2021-09-15 | 2023-03-23 | 住友精化株式会社 | ポリアルキレンオキシド、固形製剤用組成物及びその製造方法並びに徐放性製剤用組成物 |
CN114196006A (zh) * | 2021-12-14 | 2022-03-18 | 吉林瑞吉特殊化学品有限公司 | 一种乙二醇单叔丁醚烷氧基化衍生物及其制备方法 |
CN114395121B (zh) * | 2021-12-29 | 2023-11-10 | 山东一诺威新材料有限公司 | 环氧丙烯酸酯改性聚醚多元醇及其制备方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0291073A2 (en) * | 1987-05-15 | 1988-11-17 | Nippon Oil And Fats Company, Limited | Additives for cement |
WO1995016643A1 (en) * | 1993-12-14 | 1995-06-22 | Kao Corporation | Admixture for concrete |
US5773525A (en) * | 1995-11-06 | 1998-06-30 | Arco Chemical Technology, L.P. | Process of oxyalkylation employing solid, heterogeneous oxyalkylation catalysts |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4135956C2 (de) * | 1990-11-06 | 2001-10-18 | Mbt Holding Ag Zuerich | Zusatzmittel für Zementmischungen und deren Verwendung |
GB9607570D0 (en) * | 1996-04-12 | 1996-06-12 | Sandoz Ltd | Improvements in or relating to organic compounds |
US5911820A (en) * | 1996-06-21 | 1999-06-15 | Kao Corporation | Concrete admixture |
US5912284A (en) * | 1996-12-26 | 1999-06-15 | Nippon Shokubai Co., Ltd. | Cement additive, its production process and use |
-
1998
- 1998-08-24 CA CA002294359A patent/CA2294359C/en not_active Expired - Fee Related
- 1998-08-24 JP JP2000507728A patent/JP2001514280A/ja active Pending
- 1998-08-24 EP EP98946420A patent/EP1012203B1/en not_active Revoked
- 1998-08-24 DE DE69825168T patent/DE69825168T2/de not_active Expired - Lifetime
- 1998-08-24 BR BR9813009-9A patent/BR9813009A/pt not_active Application Discontinuation
- 1998-08-24 AU AU93462/98A patent/AU742676B2/en not_active Ceased
- 1998-08-24 TW TW087113927A patent/TW515811B/zh not_active IP Right Cessation
- 1998-08-24 WO PCT/EP1998/005363 patent/WO1999010407A1/en active IP Right Grant
- 1998-08-24 CN CNB98808564XA patent/CN100369951C/zh not_active Expired - Lifetime
- 1998-08-24 ES ES98946420T patent/ES2224433T3/es not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0291073A2 (en) * | 1987-05-15 | 1988-11-17 | Nippon Oil And Fats Company, Limited | Additives for cement |
WO1995016643A1 (en) * | 1993-12-14 | 1995-06-22 | Kao Corporation | Admixture for concrete |
US5773525A (en) * | 1995-11-06 | 1998-06-30 | Arco Chemical Technology, L.P. | Process of oxyalkylation employing solid, heterogeneous oxyalkylation catalysts |
Also Published As
Publication number | Publication date |
---|---|
EP1012203B1 (en) | 2004-07-21 |
JP2001514280A (ja) | 2001-09-11 |
WO1999010407A1 (en) | 1999-03-04 |
DE69825168T2 (de) | 2005-07-28 |
TW515811B (en) | 2003-01-01 |
ES2224433T3 (es) | 2005-03-01 |
EP1012203A1 (en) | 2000-06-28 |
BR9813009A (pt) | 2000-08-15 |
CN1310735A (zh) | 2001-08-29 |
DE69825168D1 (de) | 2004-08-26 |
AU742676B2 (en) | 2002-01-10 |
CA2294359C (en) | 2009-11-24 |
AU9346298A (en) | 1999-03-16 |
CA2294359A1 (en) | 1999-03-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN100369951C (zh) | 功能性聚醚的制备 | |
US6034208A (en) | Copolymers useful as cement additives and a process for their preparation | |
US5985989A (en) | Method of making a water reducing additive for cement | |
KR100550881B1 (ko) | 폴리머 폴리올 및 안정화제 시스템 | |
US5990232A (en) | Stabilizers for polymer polyols | |
CN101437859B (zh) | 梳型支化聚合物及其制备方法 | |
KR20070041394A (ko) | 시멘트 혼화제 | |
KR20120046768A (ko) | 시멘트 분산제용 중합체 조성물 및 그 제조 방법 | |
CN101977948A (zh) | 制备共聚物的半连续操作方法 | |
JP2003128738A (ja) | ポリカルボン酸系共重合体及びその製造方法並びにその用途 | |
CN100491442C (zh) | 聚合物多元醇的制备方法 | |
CN110078911A (zh) | 磷酸酯类大分子单体及其制备方法、聚合物多元醇及其制备方法 | |
JP2006232947A (ja) | 乳化重合用乳化剤 | |
US4847332A (en) | Terminally unsaturated macromolecular monomers of polyformals and copolymers thereof | |
EP0633275A1 (en) | Modified polyvinyl alcohol and a solid state process for modification of polyvinyl alcohol by free radical grafting | |
EP1363958B1 (en) | Preparation of vinyl aromatic-allylic alcohol copoylmers | |
US4871783A (en) | Modified polyols and their use in the manufacture of polymer polyols | |
JP4597302B2 (ja) | グラフト共重合体の製造方法及び該グラフト共重合体を含有する熱可塑性樹脂組成物 | |
CN101224959A (zh) | 提高酯化率的羧酸聚合物减水剂制备方法 | |
JP2006273882A (ja) | 乳化重合用乳化剤 | |
CN118215689A (zh) | 生物可降解共聚物 | |
EP0932630A2 (en) | Process for making vinyl aromatic/allylic alcohol copolymers | |
JPS6247207B2 (zh) | ||
JPH0317110A (ja) | ポリマーポリオールの製造方法 | |
PL148739B1 (en) | Method of obtaining macromonomers containing a polyether chain |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C41 | Transfer of patent application or patent right or utility model | ||
C56 | Change in the name or address of the patentee | ||
CP01 | Change in the name or title of a patent holder |
Address after: Delaware Patentee after: Link chemical technologies Address before: Delaware Patentee before: ARCO CHEMICAL TECHNOLOGY, L.P. |
|
TR01 | Transfer of patent right |
Effective date of registration: 20160722 Address after: Antwerp Patentee after: Koth a Limited by Share Ltd. Address before: Antwerp Patentee before: Bayer Antwerp Effective date of registration: 20160722 Address after: Antwerp Patentee after: Bayer Antwerp Address before: Delaware Patentee before: Link chemical technologies |
|
CX01 | Expiry of patent term |
Granted publication date: 20080220 |
|
CX01 | Expiry of patent term |