GB1286600A - Continuous polymerisation of acrylics - Google Patents

Continuous polymerisation of acrylics

Info

Publication number
GB1286600A
GB1286600A GB60877/70A GB6087770A GB1286600A GB 1286600 A GB1286600 A GB 1286600A GB 60877/70 A GB60877/70 A GB 60877/70A GB 6087770 A GB6087770 A GB 6087770A GB 1286600 A GB1286600 A GB 1286600A
Authority
GB
United Kingdom
Prior art keywords
polymer
monomer
dec
reaction zone
transfer agent
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
GB60877/70A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and 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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB1286600A publication Critical patent/GB1286600A/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
    • C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
    • C08F265/04—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of esters
    • C08F265/06—Polymerisation of acrylate or methacrylate esters on to polymers thereof

Landscapes

  • Chemical & Material Sciences (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)

Abstract

1286600 Polymethyl methacrylate E I DU PONT DE NEMOURS & CO 22 Dec 1970 [22 Dec 1969] 60877/70 Heading C3P The continuous flow polymerization of methyl methacrylate is effected by mixing monomer with a syrup comprising methyl methacrylate polymer (e.g. recycle), an initiator and a chain transfer agent, the mixture containing 30-80% by weight of monomer feeding the mixture at 120-170‹ C. and advancing it through a reaction zone under adiabatic conditions resulting in a uniform temperature rise of 10-30‹ C. along the reaction zone and withdrawing polymer syrup containing 25-75% of polymer. Preferably the monomer contains 1-25% of ethyl acrylate. Exemplified initiators are tbutyl perbenzoate, dimethylhexyl dihydroperoxide and dimethyl di-t-butylperoxy hexane. The chain transfer agent is t-amyl mercaptan or butyl mercaptan.
GB60877/70A 1969-12-22 1970-12-22 Continuous polymerisation of acrylics Expired GB1286600A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88713269A 1969-12-22 1969-12-22

Publications (1)

Publication Number Publication Date
GB1286600A true GB1286600A (en) 1972-08-23

Family

ID=25390507

Family Applications (1)

Application Number Title Priority Date Filing Date
GB60877/70A Expired GB1286600A (en) 1969-12-22 1970-12-22 Continuous polymerisation of acrylics

Country Status (10)

Country Link
AU (1) AU2358470A (en)
BE (1) BE760525A (en)
BR (1) BR7024798D0 (en)
CA (1) CA945297A (en)
DE (1) DE2062976C3 (en)
ES (1) ES386602A1 (en)
FR (1) FR2071983B1 (en)
GB (1) GB1286600A (en)
NL (1) NL164296C (en)
ZA (1) ZA708437B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5728793A (en) * 1993-11-05 1998-03-17 Sumitomo Chemical Company, Limited Process for production of methacrylate polymers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5728793A (en) * 1993-11-05 1998-03-17 Sumitomo Chemical Company, Limited Process for production of methacrylate polymers

Also Published As

Publication number Publication date
DE2062976A1 (en) 1971-06-24
FR2071983A1 (en) 1971-09-24
ES386602A1 (en) 1973-03-16
NL164296C (en) 1980-12-15
BE760525A (en) 1971-06-18
NL164296B (en) 1980-07-15
DE2062976C3 (en) 1980-10-02
FR2071983B1 (en) 1975-07-04
CA945297A (en) 1974-04-09
DE2062976B2 (en) 1980-02-07
ZA708437B (en) 1971-09-29
AU2358470A (en) 1972-06-22
BR7024798D0 (en) 1973-02-22
NL7018672A (en) 1971-06-24

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years