GB788967A - Method for decolorizing hydrogenated polymers - Google Patents

Method for decolorizing hydrogenated polymers

Info

Publication number
GB788967A
GB788967A GB36226/55A GB3622655A GB788967A GB 788967 A GB788967 A GB 788967A GB 36226/55 A GB36226/55 A GB 36226/55A GB 3622655 A GB3622655 A GB 3622655A GB 788967 A GB788967 A GB 788967A
Authority
GB
United Kingdom
Prior art keywords
per cent
amount
acid
decolorizing
nickel
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
GB36226/55A
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.)
Phillips Petroleum Co
Original Assignee
Phillips Petroleum 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 Phillips Petroleum Co filed Critical Phillips Petroleum Co
Publication of GB788967A publication Critical patent/GB788967A/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
    • C08F6/00—Post-polymerisation treatments
    • C08F6/02—Neutralisation of the polymerisation mass, e.g. killing the catalyst also removal of catalyst residues

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)

Abstract

A hydrogenated off-colour polybutadiene or butadiene-styrene copolymer, the residual unsaturation of which have been reduced at least 50 per cent by hydrogenation in the presence of a nickel catalyst is contacted with a saturated organo mono- or poly-carboxylic acid of 2 to 8 carbon atoms or with a mineral acid. The nickel catalyst may be nickel-kieselguhr, and the styrene should amount to not over 30 per cent of the monomeric mixture. The amount of acid is preferably from 0.01 to 5 per cent and specified acids are acetic, propionic, butyric, valeric, caproic, heptanoic, caprylic, oxalic, malonic, succinic, glutaric, adipic, pimelic, azelaic, sebasic, hydrochloric and phosphoric acids, which are used preferably in aqueous solution.
GB36226/55A 1954-12-27 1955-12-16 Method for decolorizing hydrogenated polymers Expired GB788967A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US788967XA 1954-12-27 1954-12-27

Publications (1)

Publication Number Publication Date
GB788967A true GB788967A (en) 1958-01-08

Family

ID=22146866

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36226/55A Expired GB788967A (en) 1954-12-27 1955-12-16 Method for decolorizing hydrogenated polymers

Country Status (1)

Country Link
GB (1) GB788967A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0186918A2 (en) * 1984-11-23 1986-07-09 Shell Internationale Researchmaatschappij B.V. Separating heavy metals from polymers
US4952304A (en) * 1987-09-22 1990-08-28 Enichem Elastomers Ltd. Removal of catalyst residues

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0186918A2 (en) * 1984-11-23 1986-07-09 Shell Internationale Researchmaatschappij B.V. Separating heavy metals from polymers
EP0186918A3 (en) * 1984-11-23 1988-03-30 Shell Internationale Research Maatschappij B.V. Separating heavy metals from polymers
EP0358283A2 (en) * 1984-11-23 1990-03-14 Shell Internationale Researchmaatschappij B.V. Separating heavy metals from polymers
EP0358283A3 (en) * 1984-11-23 1990-05-16 Shell Internationale Research Maatschappij B.V. Separating heavy metals from polymers
US4952304A (en) * 1987-09-22 1990-08-28 Enichem Elastomers Ltd. Removal of catalyst residues

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