GB1580339A - Process for purifying polypropylene - Google Patents

Process for purifying polypropylene Download PDF

Info

Publication number
GB1580339A
GB1580339A GB29841/77A GB2904177A GB1580339A GB 1580339 A GB1580339 A GB 1580339A GB 29841/77 A GB29841/77 A GB 29841/77A GB 2904177 A GB2904177 A GB 2904177A GB 1580339 A GB1580339 A GB 1580339A
Authority
GB
United Kingdom
Prior art keywords
process according
polypropylene
ppm
acid
liquid
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
GB29841/77A
Other languages
English (en)
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.)
ATO Chimie SA
Original Assignee
ATO Chimie SA
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 ATO Chimie SA filed Critical ATO Chimie SA
Publication of GB1580339A publication Critical patent/GB1580339A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F6/00Post-polymerisation treatments
    • C08F6/06Treatment of polymer solutions
    • C08F6/12Separation of polymers from solutions

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)
GB29841/77A 1976-07-12 1977-07-11 Process for purifying polypropylene Expired GB1580339A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7621292A FR2358423A1 (fr) 1976-07-12 1976-07-12 Separation des polypropylenes isotactique et atactique

Publications (1)

Publication Number Publication Date
GB1580339A true GB1580339A (en) 1980-12-03

Family

ID=9175607

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29841/77A Expired GB1580339A (en) 1976-07-12 1977-07-11 Process for purifying polypropylene

Country Status (9)

Country Link
US (1) US4256874A (enExample)
JP (1) JPS538686A (enExample)
BE (1) BE856555A (enExample)
DE (1) DE2731231A1 (enExample)
FR (1) FR2358423A1 (enExample)
GB (1) GB1580339A (enExample)
IT (1) IT1082121B (enExample)
NL (1) NL7707589A (enExample)
NO (1) NO772417L (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54142292A (en) * 1978-04-27 1979-11-06 Sumitomo Chem Co Ltd Separation of atactic polypropylene from hydrocarbon solvents and its device
WO2002092640A1 (en) * 2001-05-14 2002-11-21 Exxonmobil Chemical Patents Inc. A Corporation Of State Of Delaware Low bulk density polypropylene homopolymers and copolymers

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125560A (en) * 1958-10-13 1964-03-17 Cziis
US3219647A (en) * 1962-04-26 1965-11-23 Phillips Petroleum Co Removal of catalyst residues from polymers
US3285899A (en) * 1962-08-30 1966-11-15 Phillips Petroleum Co Method for continuously discharging the contents of a pressurized vessel
US3281399A (en) * 1963-04-01 1966-10-25 Phillips Petroleum Co Catalyst residue removal
GB1051049A (enExample) * 1963-06-03 1900-01-01
US3499880A (en) * 1966-01-18 1970-03-10 Hercules Inc Purification of polyolefins using alkanoic acids
US3328373A (en) * 1966-08-04 1967-06-27 Firestone Tire & Rubber Co Process for purification of polypropylene
US3661884A (en) * 1969-07-07 1972-05-09 Phillips Petroleum Co Refining crude amorphous polyolefins
US3733314A (en) * 1971-02-03 1973-05-15 Phillips Petroleum Co Purification of amorphous polyolefins
US3709850A (en) * 1971-02-16 1973-01-09 Phillips Petroleum Co Purification of polyolefins

Also Published As

Publication number Publication date
BE856555A (fr) 1978-01-06
FR2358423A1 (fr) 1978-02-10
US4256874A (en) 1981-03-17
FR2358423B1 (enExample) 1980-08-08
DE2731231A1 (de) 1978-01-19
JPS538686A (en) 1978-01-26
IT1082121B (it) 1985-05-21
NL7707589A (nl) 1978-01-16
NO772417L (no) 1978-01-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee