GB852382A - Process for the modification of olefin polymers - Google Patents

Process for the modification of olefin polymers

Info

Publication number
GB852382A
GB852382A GB17554/58A GB1755458A GB852382A GB 852382 A GB852382 A GB 852382A GB 17554/58 A GB17554/58 A GB 17554/58A GB 1755458 A GB1755458 A GB 1755458A GB 852382 A GB852382 A GB 852382A
Authority
GB
United Kingdom
Prior art keywords
polymer
alcohols
sulphur
moles
methyl
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
GB17554/58A
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.)
Lubrizol Corp
Original Assignee
Lubrizol 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 Lubrizol Corp filed Critical Lubrizol Corp
Publication of GB852382A publication Critical patent/GB852382A/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
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/40—Introducing phosphorus atoms or phosphorus-containing groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • General 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)

Abstract

A polymer of a C2-C4 mono-olefine, such as ethylene, propylene, butene-1, or isobutylene or a copolymer thereof, e.g. isobutylene-styrene copolymer, is admixed with from 0,5 to 5,0 moles of sulphur, from 0,001 to 0,1 moles of a Group I or II metal salt of phosphorodithioic acid, and from 0,5 to 5,0 moles of phosphorus trichloride, per mole of polymer and heated to above 140 DEG C. and preferably below 250 DEG C., and the resultant mass treated with steam at between 110 DEG C. and 200 DEG C. Polymers of low molecular weight, e.g. polyisobutylene of MW from 100 to 2000, may be used and the sulphur and phosphorus trichloride are added to a mixture of the polymer and metal phosphorodithioate or alternatively the phosphorus trichloride is added preferably portionwise to a mixture of the polymer, sulphur and metal phosphorodithioate. The phosphorodithioic acid is derived from the reaction of phosphorus pentasulphide with an alcohol or phenol such as ethyl, isobutyl, octyl, capryl alcohols, 4-methyl-2 pentyl alcohol, cyclohexanol, dodecanol, isopropyl, diisobutyl and heptyl phenols, ethylene chlorohydrin and 2, 4, dichlorophenol or mixtures thereof. The products are light coloured and are used as additives for lubricating oil.ALSO:Phosphorodithioic acids are prepared by the reaction of phosphorus pentasulphide with alcohols or phenols. Ethyl, isobutyl, octyl, capryl alcohols, 4-methyl-2-pentyl alcohol, cyclohexanol, dodecanol, isopropyl, diisobutyl and heptyl phenols, ethylene chlorohydrin and 2-4-dichlorophenol and a mixture of carpyl, 4-methyl-2-pentyl and cyclohexyl alcohols are specified. Salts with Group I and Group II metals are described.
GB17554/58A 1957-10-09 1958-06-02 Process for the modification of olefin polymers Expired GB852382A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US852382XA 1957-10-09 1957-10-09

Publications (1)

Publication Number Publication Date
GB852382A true GB852382A (en) 1960-10-26

Family

ID=22190332

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17554/58A Expired GB852382A (en) 1957-10-09 1958-06-02 Process for the modification of olefin polymers

Country Status (1)

Country Link
GB (1) GB852382A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004072024A2 (en) * 2003-02-11 2004-08-26 Basf Aktiengesellschaft Polyisobutene phosphonic acid and the derivatives thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004072024A2 (en) * 2003-02-11 2004-08-26 Basf Aktiengesellschaft Polyisobutene phosphonic acid and the derivatives thereof
WO2004072024A3 (en) * 2003-02-11 2004-11-04 Basf Ag Polyisobutene phosphonic acid and the derivatives thereof

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