ES372492A1 - And the resulting polymers - Google Patents

And the resulting polymers

Info

Publication number
ES372492A1
ES372492A1 ES372492A ES372492A ES372492A1 ES 372492 A1 ES372492 A1 ES 372492A1 ES 372492 A ES372492 A ES 372492A ES 372492 A ES372492 A ES 372492A ES 372492 A1 ES372492 A1 ES 372492A1
Authority
ES
Spain
Prior art keywords
suspension
beads
phosphate
resulting polymers
aqueous
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
ES372492A
Other languages
Spanish (es)
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Publication of ES372492A1 publication Critical patent/ES372492A1/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
    • C08F2/00—Processes of polymerisation
    • C08F2/12—Polymerisation in non-solvents
    • C08F2/16—Aqueous medium
    • C08F2/18—Suspension polymerisation

Abstract

A process for making beads or beads from a vinyl polymer, polymerizing a vinyl monomer in an aqueous suspension containing a sparingly soluble phosphate, as a suspension stabilizer, in which the pH of the aqueous phase of the suspension, containing at least 75% of the total amount of phosphate, in undissolved form, is at most 6, and in which, during part of at least the polymerization period, said pH is controlled within a zone of one pH unit, through the presence of a buffering agent. (Machine-translation by Google Translate, not legally binding)
ES372492A 1968-10-16 1969-10-14 And the resulting polymers Expired ES372492A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4909768A GB1277409A (en) 1968-10-16 1968-10-16 The polymerisation of vinyl compounds; and the resulting polymers

Publications (1)

Publication Number Publication Date
ES372492A1 true ES372492A1 (en) 1972-03-16

Family

ID=10451139

Family Applications (1)

Application Number Title Priority Date Filing Date
ES372492A Expired ES372492A1 (en) 1968-10-16 1969-10-14 And the resulting polymers

Country Status (8)

Country Link
BE (1) BE740253A (en)
BR (1) BR6913301D0 (en)
DE (1) DE1951775A1 (en)
ES (1) ES372492A1 (en)
FR (1) FR2020845A1 (en)
GB (1) GB1277409A (en)
NL (1) NL163223B (en)
SE (1) SE367208B (en)

Also Published As

Publication number Publication date
FR2020845A1 (en) 1970-07-17
SE367208B (en) 1974-05-20
DE1951775A1 (en) 1970-05-06
NL6915574A (en) 1970-04-20
NL163223B (en) 1980-03-17
BR6913301D0 (en) 1973-01-11
BE740253A (en) 1970-04-14
GB1277409A (en) 1972-06-14

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