MY8800004A - A process for preparing advanced epoxy resins employing tetrahydrocarbyl phosponium salts as catalyst and advanced epoxy resins prepared by the process - Google Patents

A process for preparing advanced epoxy resins employing tetrahydrocarbyl phosponium salts as catalyst and advanced epoxy resins prepared by the process

Info

Publication number
MY8800004A
MY8800004A MY4/88A MY8800004A MY8800004A MY 8800004 A MY8800004 A MY 8800004A MY 4/88 A MY4/88 A MY 4/88A MY 8800004 A MY8800004 A MY 8800004A MY 8800004 A MY8800004 A MY 8800004A
Authority
MY
Malaysia
Prior art keywords
epoxy resins
advanced epoxy
tetrahydrocarbyl
catalyst
employing
Prior art date
Application number
MY4/88A
Other languages
English (en)
Inventor
George A Doorakian
Marsha A Paul
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Publication of MY8800004A publication Critical patent/MY8800004A/xx

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
    • C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
    • C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
    • C08G59/62—Alcohols or phenols
    • 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
    • C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/02—Polycondensates containing more than one epoxy group per molecule
    • C08G59/04—Polycondensates containing more than one epoxy group per molecule of polyhydroxy compounds with epihalohydrins or precursors thereof
    • C08G59/06—Polycondensates containing more than one epoxy group per molecule of polyhydroxy compounds with epihalohydrins or precursors thereof of polyhydric phenols
    • C08G59/066—Polycondensates containing more than one epoxy group per molecule of polyhydroxy compounds with epihalohydrins or precursors thereof of polyhydric phenols with chain extension or advancing agents
    • 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
    • C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/02—Polycondensates containing more than one epoxy group per molecule
    • 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
    • C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
    • C08G59/68—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the catalysts used

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Epoxy Resins (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
MY4/88A 1983-02-28 1988-12-30 A process for preparing advanced epoxy resins employing tetrahydrocarbyl phosponium salts as catalyst and advanced epoxy resins prepared by the process MY8800004A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/470,107 US4438254A (en) 1983-02-28 1983-02-28 Process for producing epoxy resins

Publications (1)

Publication Number Publication Date
MY8800004A true MY8800004A (en) 1988-12-31

Family

ID=23866303

Family Applications (1)

Application Number Title Priority Date Filing Date
MY4/88A MY8800004A (en) 1983-02-28 1988-12-30 A process for preparing advanced epoxy resins employing tetrahydrocarbyl phosponium salts as catalyst and advanced epoxy resins prepared by the process

Country Status (15)

Country Link
US (1) US4438254A (en, 2012)
EP (1) EP0117562B1 (en, 2012)
JP (1) JPS60500626A (en, 2012)
KR (1) KR860000809B1 (en, 2012)
AU (1) AU562868B2 (en, 2012)
BR (1) BR8406168A (en, 2012)
CA (1) CA1215194A (en, 2012)
DE (1) DE3475717D1 (en, 2012)
ES (1) ES8600339A1 (en, 2012)
GB (1) GB2135674B (en, 2012)
MY (1) MY8800004A (en, 2012)
NO (1) NO161070C (en, 2012)
NZ (1) NZ207301A (en, 2012)
WO (1) WO1984003289A1 (en, 2012)
ZA (1) ZA841476B (en, 2012)

Families Citing this family (88)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL75806A (en) * 1984-07-17 1988-10-31 Dow Chemical Co Partially advanced epoxy resin compositions and products resulting from reacting and curing said compositions
US4594291A (en) * 1984-07-17 1986-06-10 The Dow Chemical Company Curable, partially advanced epoxy resins
US5503937A (en) * 1984-07-17 1996-04-02 The Dow Chemical Company Curable composition which comprises adducts of heterocyclic compounds
US4946817A (en) * 1984-07-17 1990-08-07 The Dow Chemical Company Latent catalysts for epoxy-containing compounds
GB8420816D0 (en) * 1984-08-16 1984-09-19 Dow Chemical Rheinwerk Gmbh Epoxy resins
US4604317A (en) * 1984-10-05 1986-08-05 The Dow Chemical Company Curable compositions containing a polyepoxide and a halogenated bisphenol
US4568735A (en) * 1984-11-05 1986-02-04 Shell Oil Company Process for preparing polyepoxides (II)
EP0204771B1 (en) * 1984-12-04 1991-07-03 The Dow Chemical Company Thermally stable thermoplastic resin
US4612156A (en) * 1985-02-26 1986-09-16 The Dow Chemical Company Solventless process for producing resinous materials
US4721743A (en) * 1985-03-25 1988-01-26 The Dow Chemical Company Non-thermoset thermally stable capped epoxy resin compositions
US4783509A (en) * 1985-03-25 1988-11-08 The Dow Chemical Company Non-thermoset thermally stable capped epoxy resin compositions
US4596861A (en) * 1985-05-22 1986-06-24 The Dow Chemical Company Advanced epoxy resin for can coating applications
US4634757A (en) * 1985-07-15 1987-01-06 Shell Oil Company Fusion product
GB8519290D0 (en) * 1985-07-31 1985-09-04 Dow Chemical Rheinwerk Gmbh Resin composition
US4647648A (en) * 1985-08-26 1987-03-03 The Dow Chemical Company Polyhydroxyethers from hydroxybiphenyls
US4684700A (en) * 1986-02-14 1987-08-04 The Dow Chemical Company Advanced epoxy resins prepared from triglycidyl ethers and dihydri phenols
US4692504A (en) * 1986-04-30 1987-09-08 Shell Oil Company Deactivation of phosphonium salt catalyst
US4732958A (en) * 1986-12-30 1988-03-22 Shell Oil Company Epoxy fusion process
US4829141A (en) * 1987-07-31 1989-05-09 Shell Oil Company Epoxy fusion catalyst and process
US4880892A (en) * 1987-08-31 1989-11-14 Ciba-Geigy Corporation Composition comprising an epoxy resin, a phenol and an advancement catalyst
JPH0219171U (en, 2012) * 1988-07-22 1990-02-08
US4933420A (en) * 1988-09-23 1990-06-12 The Dow Chemical Company Epoxy resins containing phosphonium catalysts
US5105006A (en) * 1989-05-25 1992-04-14 The Dow Chemical Company Phosphonium salts
US5045632A (en) * 1989-05-25 1991-09-03 The Dow Chemical Company Novel bis(phosphoranylidene) ammonium salts
US5310854A (en) * 1989-08-23 1994-05-10 The Dow Chemical Company Epoxy resin composition and process therefor
BR9100475A (pt) * 1990-02-06 1991-10-29 Dow Chemical Co Aduto,complexo ou composto,composicao,processo para a preparacao de um aduto,complexo ou composto e processo para a preparacao de uma composicao
US4981926A (en) * 1990-02-06 1991-01-01 The Dow Chemical Company Composition of epoxy resin, amino group-containing phosphonium catalyst and curing agent
US5208317A (en) * 1990-02-06 1993-05-04 The Dow Chemical Company Composition comprising epoxy resin and cationic amine phosphonium catalyst
US5721323A (en) * 1990-05-21 1998-02-24 The Dow Chemical Company Cure inhibited epoxy resin compositions and laminates prepared from the compositions
ZA913801B (en) * 1990-05-21 1993-01-27 Dow Chemical Co Latent catalysts,cure-inhibited epoxy resin compositions and laminates prepared therefrom
US5169473A (en) * 1990-05-21 1992-12-08 The Dow Chemical Company Latent catalysts, epoxy compositions incorporating same, and coating, impregnating and bonding methods employing the compositions
US5202407A (en) * 1992-01-24 1993-04-13 The Dow Chemical Company Precatalyzed catalyst compositions, process for preparing epoxy resins curable compositions, articles resulting from curing the resultant compositions
US6011111A (en) * 1993-10-18 2000-01-04 The Dow Chemical Company Hydroxy-phenoxyether polymer thermoplastic composites
CO4850623A1 (es) * 1996-04-19 1999-10-26 Shell Int Research Procedimiento para la preparacion de resinas avanzadas .
US6613839B1 (en) 1997-01-21 2003-09-02 The Dow Chemical Company Polyepoxide, catalyst/cure inhibitor complex and anhydride
US6352426B1 (en) 1998-03-19 2002-03-05 Advanced Plastics Technologies, Ltd. Mold for injection molding multilayer preforms
US6312641B1 (en) 1997-10-17 2001-11-06 Plastic Fabrication Technologies Llc Method of making containers and preforms incorporating barrier materials
TWI250934B (en) 1997-10-17 2006-03-11 Advancsd Plastics Technologies Barrier-coated polyester articles and the fabrication method thereof
US5962621A (en) * 1998-04-28 1999-10-05 The Dow Chemical Company Process for preparing hydroxy-functionalized polyesters
US6109006A (en) * 1998-07-14 2000-08-29 Advanced Plastics Technologies, Ltd. Process for making extruded pet containers
US6808820B2 (en) 2000-09-05 2004-10-26 Advanced Plastics Technology Ltd. Multilayer containers and preforms having barrier properties utilizing recycled material
CN1437625A (zh) 2000-06-23 2003-08-20 陶氏环球技术公司 环氧树脂及其制备方法
WO2002048234A2 (en) 2000-12-14 2002-06-20 Dow Global Technologies Inc. Epoxy resins and process for making the same
EG23499A (en) * 2002-07-03 2006-01-17 Advanced Plastics Technologies Dip, spray, and flow coating process for forming coated articles
WO2004043675A1 (en) * 2002-11-08 2004-05-27 Advanced Plastics Technologies Ltd Injection mold having a wear resistant portion and a high heat transfer portion and a method for forming a preform
US20050136201A1 (en) * 2003-12-22 2005-06-23 Pepsico, Inc. Method of improving the environmental stretch crack resistance of RPET without solid stating
US20060065992A1 (en) * 2004-04-16 2006-03-30 Hutchinson Gerald A Mono and multi-layer articles and compression methods of making the same
MXPA06011806A (es) * 2004-04-16 2006-12-15 Advanced Plastics Technologies Articulos de mono y multiples capas y metodos de extrusion para producir los mismos.
EP1776217A2 (en) * 2004-06-10 2007-04-25 Advanced Plastics Technologies Luxembourg S.A. Methods and systems for controlling mold temperatures
US20060292323A1 (en) * 2005-04-18 2006-12-28 Hutchinson Gerald A Water-resistant coated articles and methods of making same
RU2008110527A (ru) * 2005-08-30 2009-10-10 Эдвансид Пластикс Текнолоджиз Лаксемберг С.А. (LU) Способы и системы для регулирования температуры формы
CA2622023A1 (en) * 2005-10-14 2007-04-26 Advanced Plastics Technologies Luxembourg S.A. Methods of forming multilayer articles by surface treatment applications
WO2008143643A2 (en) 2006-11-30 2008-11-27 The Texas A & M University System Intercalation agent free compositions useful to make nanocomposite polymers
US20100119704A1 (en) * 2007-04-13 2010-05-13 Christopher Douglas Hemmelgarn Composite self-healing system
CN105255312A (zh) 2008-01-23 2016-01-20 蓝立方知识产权公司 环氧树脂硬化剂组合物及含有这样的硬化剂组合物的环氧树脂组合物
US7879925B2 (en) * 2008-05-27 2011-02-01 Zephyros, Inc. Composite with natural fibers
US8349945B2 (en) 2008-06-03 2013-01-08 Dow Global Technologies Llc Composite dispersion, method of producing the same, and articles made therefrom
US9221940B2 (en) * 2008-12-12 2015-12-29 Dow Global Technologies Llc Coating composition, a process of producing a coating composition, a coated article, and a method of forming such articles
KR101710216B1 (ko) 2008-12-16 2017-02-24 다우 글로벌 테크놀로지스 엘엘씨 안료를 불투명화시키는 중합체 캡슐화된 금속 산화물을 포함하는 코팅 조성물 및 그의 제조 방법
KR101652143B1 (ko) 2009-03-16 2016-08-29 다우 글로벌 테크놀로지스 엘엘씨 분산액 및 그의 제조 방법
WO2010114648A1 (en) 2009-03-30 2010-10-07 Dow Global Technologies Inc. Hybrid dispersions and methods for producing the same
US20120118785A1 (en) * 2009-07-24 2012-05-17 Dow Global Technologies Inc. Coated container device, method of making the same
EP3254985B1 (en) 2009-07-24 2021-04-21 Dow Global Technologies LLC A coated container device, method of making the same
CN102686638B (zh) * 2009-10-30 2015-04-01 陶氏环球技术有限责任公司 醇酸分散体、及其制备方法
AU2011364953B2 (en) 2011-04-08 2016-04-21 Dow Global Technologies Llc A coating composition, and a process for producing the same
CN105358599B (zh) 2013-07-11 2019-04-19 陶氏环球技术有限责任公司 用于制造氨酯-异氰脲酸酯的方法
WO2015051242A1 (en) 2013-10-04 2015-04-09 Zephyros, Inc. Method and apparatus for adhesion of inserts
US20150197682A1 (en) 2014-01-16 2015-07-16 Clearwater International, Llc Anti-gel agent for polyhydroxyetheramines, gel stabilized polyhydroxyetheramine solutions, and methods for making and using same
BR112016029710A2 (pt) 2014-06-27 2017-08-22 Dow Global Technologies Llc método para otimizar uma classificação de hegman de uma emulsão diluída, uma emulsão diluída assim produzida e um revestimento feito a partir da mesma
US9796891B2 (en) 2014-08-11 2017-10-24 Zephyros, Inc. Panel edge enclosures
US20160046047A1 (en) 2014-08-14 2016-02-18 Zephyros, Inc. Reformable epoxy resin for composites
WO2016065104A1 (en) 2014-10-22 2016-04-28 Zephyros, Inc. Reformable resin fibers
US20180036970A1 (en) 2015-03-10 2018-02-08 Zephyros, Inc. Pultruded articles and methods for making same
EP4578904A2 (en) 2015-03-10 2025-07-02 Zephyros Inc. Composites with thermoplastic epoxy polymeric phase, articles such as carriers made therewith and associated methods
EP3271413B1 (en) 2015-03-19 2023-09-13 Zephyros Inc. Esterified acids for use in polymeric materials
CA3005058A1 (en) * 2015-11-12 2017-05-18 Zephyros, Inc. Controlled glass transition polymeric material and method
WO2017087663A1 (en) 2015-11-17 2017-05-26 Zephyros, Inc. Additive manufacturing materials system
CN113954378A (zh) 2015-11-30 2022-01-21 泽菲罗斯公司 用于复合材料及胶带的粘合剂树脂和薄膜，及其使用方法
CN118254447A (zh) 2016-01-20 2024-06-28 泽费罗斯股份有限公司 具有核壳相的热塑性环氧材料
WO2017205172A1 (en) 2016-05-24 2017-11-30 Zephyros, Inc. Reformable resin materials and uses therefor
EP3668708A1 (en) 2017-08-14 2020-06-24 Zephyros, Inc. Induction heating of composite parts
EP3802930A1 (en) 2018-06-11 2021-04-14 Zephyros, Inc. Reformable resin filaments and materials formed therewith
US11332197B2 (en) 2018-10-12 2022-05-17 Zephyros, Inc. Composite load bearing flooring
US20220002564A1 (en) 2018-10-17 2022-01-06 Dow Global Technologies Llc A coating composition, a coated fabric, a method of making a coated fabric, and an article made from the coated fabric
EP3867106A1 (en) 2018-10-17 2021-08-25 Dow Global Technologies, LLC A coating composition, a coated fabric, a method of making a coated fabric, and an article made from the coated fabric
US11673995B2 (en) * 2019-08-08 2023-06-13 Ppg Industries Ohio, Inc. Polyol polymers, methods of preparing such polymers, and coating compositions containing the same
BR112022016772A2 (pt) 2020-02-24 2022-10-11 Zephyros Inc Composição balística, montagem balística e método para fabricar uma montagem balística
WO2022031517A1 (en) 2020-08-05 2022-02-10 Blue Cube Ip Llc Novel hardener formulation for cold curing epoxy systems

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1101739A (en) * 1964-06-08 1968-01-31 Celanese Coatings Co High molecular weight thermoplastic polyhydroxypolyethers
NL137295C (en, 2012) 1965-11-03
US3477990A (en) 1967-12-07 1969-11-11 Shell Oil Co Process for reacting a phenol with an epoxy compound and resulting products
US3547885A (en) 1968-03-08 1970-12-15 Sun Oil Co Process for curing polyepoxides with anhydrides and phosphonium halide catalysts therefor
NL6915348A (en, 2012) * 1968-10-25 1970-04-28
JPS547839B1 (en, 2012) * 1970-04-20 1979-04-10
US3694407A (en) 1970-08-11 1972-09-26 Shell Oil Co Epoxy-containing condensates,their preparation and use
US3948855A (en) 1971-09-16 1976-04-06 The Dow Chemical Company Process for reacting a phenol with a vicinal epoxy compound in the presence of phosphorus or carbon containing acid, ester or acid ester
US3738862A (en) 1971-11-08 1973-06-12 Shell Oil Co Process for preparing reinforced laminates in situ with epoxy-polyhydric phenol condensates
US4171420A (en) 1974-06-21 1979-10-16 The Dow Chemical Company Latent catalysts for promoting reaction of epoxides with phenols and/or carboxylic acids
CA1051031A (en) * 1974-06-21 1979-03-20 The Dow Chemical Company Latent catalysts for promoting reaction of epoxides with phenols and/or carboxylic acids
US4048141A (en) 1975-11-06 1977-09-13 The Dow Chemical Company Latent catalysts for promoting reaction of epoxides with phenols and/or carboxylic acids
GB1494972A (en) * 1976-01-19 1977-12-14 Dow Chemical Co Process of reacting epoxides with phenols carboxylic acids or carboxylic acid anhydrides
US4104257A (en) * 1977-07-27 1978-08-01 The Dow Chemical Company Process for preparing high molecular weight polyether resins from bisphenols and epoxy resins
US4122067A (en) * 1977-10-07 1978-10-24 Celanese Polymer Specialties Company Process of reacting a polyepoxide compound with a phenol in aqueous medium
GB1580603A (en) * 1978-05-18 1980-12-03 Dow Chemical Co Process for preparing triorgano-(2,5-dihydroxyphenyl) phosphonium salts
US4370465A (en) * 1980-12-04 1983-01-25 The Dow Chemical Co. Epoxy resins having improved physical properties when cured
US4352918A (en) 1980-12-04 1982-10-05 The Dow Chemical Company Process for preparing epoxy resins having improved physical properties when cured using quaternary phosphonium catalysts
US4389520A (en) 1982-04-05 1983-06-21 Ciba-Geigy Corporation Advancement catalysts for epoxy resins
WO1983004414A1 (en) * 1982-06-10 1983-12-22 The Dow Chemical Company Advanced epoxy resins and coating compositions containing the advanced epoxy resins

Also Published As

Publication number Publication date
AU562868B2 (en) 1987-06-18
KR860000809B1 (ko) 1986-06-28
GB8405154D0 (en) 1984-04-04
GB2135674B (en) 1986-08-28
NO161070B (no) 1989-03-20
CA1215194A (en) 1986-12-09
BR8406168A (pt) 1985-03-12
GB2135674A (en) 1984-09-05
ES530107A0 (es) 1985-05-01
EP0117562A3 (en) 1985-09-04
ES8600339A1 (es) 1985-05-01
DE3475717D1 (en) 1989-01-26
AU2694284A (en) 1984-09-10
NZ207301A (en) 1987-10-30
KR840007736A (ko) 1984-12-10
US4438254A (en) 1984-03-20
WO1984003289A1 (en) 1984-08-30
JPS60500626A (ja) 1985-05-02
ZA841476B (en) 1985-10-30
NO161070C (no) 1989-06-28
NO840748L (no) 1984-08-29
EP0117562A2 (en) 1984-09-05
EP0117562B1 (en) 1988-12-21
JPS632971B2 (en, 2012) 1988-01-21

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