CA1072245A - Free-radical polymerizations using mixed initiator systems at two thermally distinct polymerization stages - Google Patents

Free-radical polymerizations using mixed initiator systems at two thermally distinct polymerization stages

Info

Publication number
CA1072245A
CA1072245A CA288,600A CA288600A CA1072245A CA 1072245 A CA1072245 A CA 1072245A CA 288600 A CA288600 A CA 288600A CA 1072245 A CA1072245 A CA 1072245A
Authority
CA
Canada
Prior art keywords
polymerization
initiator
initiators
bis
temperature
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
Application number
CA288,600A
Other languages
English (en)
French (fr)
Inventor
Gary A. Harpell
Vasanth R. Kamath
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.)
Arkema Inc
Original Assignee
Pennwalt Corp
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 Pennwalt Corp filed Critical Pennwalt Corp
Application granted granted Critical
Publication of CA1072245A publication Critical patent/CA1072245A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08F4/00—Polymerisation catalysts
    • C08F4/28—Oxygen or compounds releasing free oxygen
    • C08F4/32—Organic compounds
    • C08F4/38—Mixtures of peroxy-compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymerisation Methods In General (AREA)
  • Polymerization Catalysts (AREA)
CA288,600A 1977-01-06 1977-10-13 Free-radical polymerizations using mixed initiator systems at two thermally distinct polymerization stages Expired CA1072245A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/757,186 US4129703A (en) 1977-01-06 1977-01-06 Free-radical polymerizations using mixed initiator systems at two thermally distinct polymerization stages

Publications (1)

Publication Number Publication Date
CA1072245A true CA1072245A (en) 1980-02-19

Family

ID=25046758

Family Applications (1)

Application Number Title Priority Date Filing Date
CA288,600A Expired CA1072245A (en) 1977-01-06 1977-10-13 Free-radical polymerizations using mixed initiator systems at two thermally distinct polymerization stages

Country Status (7)

Country Link
US (1) US4129703A (US08063081-20111122-C00044.png)
JP (1) JPS5385880A (US08063081-20111122-C00044.png)
CA (1) CA1072245A (US08063081-20111122-C00044.png)
DE (1) DE2749519A1 (US08063081-20111122-C00044.png)
FR (1) FR2376871A1 (US08063081-20111122-C00044.png)
GB (1) GB1588877A (US08063081-20111122-C00044.png)
NL (1) NL7711670A (US08063081-20111122-C00044.png)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4396737A (en) * 1981-11-19 1983-08-02 Ppg Industries, Inc. Polymerization of polyol allyl carbonate using polymerization initiators of short and long half lives
US4962147A (en) * 1988-05-26 1990-10-09 Hoechst Celanese Corporation Process for the suspension polymerization of 4-acetoxystyrene and hydrolysis to 4-hydroxystyrene polymers
CA2019626C (en) * 1989-06-30 1994-11-22 Yuichi Arito Styrene type resin and production method thereof
US5274029A (en) * 1990-09-10 1993-12-28 Kelley Joseph M Styrene polymerization process
CA2063473C (en) * 1991-07-01 1998-09-22 T. Hwee Ng Process for preparing copolymers
CA2115587A1 (en) * 1993-02-18 1994-08-19 Hayato Kihara Styrene copolymers, polystyrene compositions, processes for producing styrene copolymers, and injection-molded articles
US6037428A (en) * 1997-04-25 2000-03-14 Shin-Etsu Chemical Co., Ltd. Polymerization of vinyl chloride with peroxide mixtures
US5972329A (en) * 1997-05-16 1999-10-26 Isp Investments Inc. Fixative polymers
DE19749570A1 (de) * 1997-11-10 1999-05-12 Basf Ag Verfahren zur Herstellung von expandierbaren Styrolpolymerisaten
BRPI0507191B1 (pt) * 2004-01-30 2015-10-13 Duluxgroup Australia Pty Ltd uso de uma combinação de peróxidos de diacila com uma amina aromática, processo para a preparação de grânulos sólidos de poliéster, composição de tinta decorativa à base de água, e, filme de tinta decorativa à base de água
KR100877577B1 (ko) * 2006-12-26 2009-01-08 제일모직주식회사 광학용 방향족 비닐계 열가소성 수지 및 그 제조방법
JP2011503335A (ja) * 2007-11-20 2011-01-27 アクゾ ノーベル ナムローゼ フェンノートシャップ スチレン系（コ）ポリマーの調製方法
EP3750929A1 (en) * 2019-06-12 2020-12-16 Trinseo Europe GmbH Styrenic polymers having reduced trimer content

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2656334A (en) * 1948-09-28 1953-10-20 Koppers Co Inc Catalytic polymerization process
BE575339A (US08063081-20111122-C00044.png) * 1958-02-03
US3222341A (en) * 1961-08-01 1965-12-07 Monsanto Co Process for polymerizing styrene
NL292366A (US08063081-20111122-C00044.png) * 1962-05-17
US3293233A (en) * 1963-04-09 1966-12-20 Rexall Drug Chemical Process for polymerizing ethylene at high pressures in the presence of a mixture of peroxides having different half lives
US3265274A (en) * 1964-07-30 1966-08-09 Vernon G Burnell Pamphlet assembly and stapling machine
NL149816B (nl) * 1967-08-29 1976-06-15 Noury & Van Der Lande Werkwijze voor de peroxydische homo- of copolymerisatie van vinylmonomeren.
GB1243197A (en) * 1968-01-18 1971-08-18 British Petroleum Co Polymerisation process
US3817965A (en) * 1968-02-27 1974-06-18 Aquitaine Petrole Polymerization of vinyl compounds in suspension
GB1252153A (US08063081-20111122-C00044.png) * 1968-04-30 1971-11-03

Also Published As

Publication number Publication date
JPS5385880A (en) 1978-07-28
US4129703A (en) 1978-12-12
NL7711670A (nl) 1978-07-10
FR2376871B1 (US08063081-20111122-C00044.png) 1984-01-27
DE2749519A1 (de) 1978-07-13
FR2376871A1 (fr) 1978-08-04
GB1588877A (en) 1981-04-29

Similar Documents

Publication Publication Date Title
CA1072245A (en) Free-radical polymerizations using mixed initiator systems at two thermally distinct polymerization stages
US4786696A (en) Process for the preparation of tacky polymeric microspheres
US3104231A (en) Aqueous emulsion of cross-linked terpolymers free of microgel and method of making same
US4200593A (en) Process for the preparation of copolymers containing low monomer content
US4125696A (en) Polymerization process using di-t-butyl diperoxycarbonate as a finishing catalyst
US3219588A (en) Catalysts for the polymerization of vinyl monomers
US4125695A (en) Polymerization process with reduced cycle time employing polyfunctional free radical initiators
US3110702A (en) Molecular weight control in polymerization of vinylidene monomers
US3523111A (en) Emulsion polymerization of vinyl chloride with redox initiator system components and emulsifier prepared before monomer addition
US3198775A (en) Copolymers having improved optical clarity
US4130700A (en) Polymerization process using diperoxy ketals as finishing catalysts
JP2002526574A (ja) 重合反応中の非常に速い開始剤の連続的配量
EP0112708A2 (en) Film-forming olefinic nitrile polymer latex and method of preparing same
US2917477A (en) Aqueous polymerization process using amino acid chelating agent and product
US3236798A (en) Film-forming acrylonitrile polyer latex and method for preparing same
AU606859B2 (en) Low molecular weight copolymers of vinyl halide/vinyl acetate produced by aqueous polymerization
EP0177956B1 (en) Low molecular weight vinyl halide/vinyl ester copolymers by aqueous polymerization
MXPA04009952A (es) Co-dosificacion de iniciadores organicos y coloides protectores durante las reacciones de polimerizacion.
US3388109A (en) Novel polymerization catalyst based on hydrogen peroxide and thioglycolic acid
Baxendale et al. Kinetics and heats of copolymerization of acrylonitrile and methyl methacrylate
US2646424A (en) Acrylonitrile compositions and process for making the same
US3790542A (en) Method for polymerizing vinyl chloride
US3457241A (en) Method for producing vinyl chloride polymers
US3673282A (en) Core-shell vinyl halide polymers having a long-chain vinyl ether containing shell
US2385258A (en) Substituted acrylonitrile polymers

Legal Events

Date Code Title Description
MKEX Expiry