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GB1058263A - Block copolymers of ethylene and propylene - Google Patents

Block copolymers of ethylene and propylene

Info

Publication number
GB1058263A
GB1058263A GB1345364A GB1345364A GB1058263A GB 1058263 A GB1058263 A GB 1058263A GB 1345364 A GB1345364 A GB 1345364A GB 1345364 A GB1345364 A GB 1345364A GB 1058263 A GB1058263 A GB 1058263A
Authority
GB
United Kingdom
Prior art keywords
ethylene
propylene
mol
feed
block copolymers
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
GB1345364A
Inventor
James Louis Jezl
Habetmissak Khelghatian
Louise Dentler Hague
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.)
Avisun Corp
Original Assignee
Avisun 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 Avisun Corp filed Critical Avisun Corp
Publication of GB1058263A publication Critical patent/GB1058263A/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
    • C08F297/00Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
    • C08F297/06Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the coordination type
    • C08F297/08Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the coordination type polymerising mono-olefins
    • C08F297/083Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the coordination type polymerising mono-olefins the monomers being ethylene or propylene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Graft Or Block Polymers (AREA)

Abstract

Block copolymers are made by polymerizing propylene or a mixture thereof with ethylene containing 1.5 to 5 mol. per cent of the latter in an inert solvent with catalyst system consisting of an aluminium alkyl dihalide, titanium trichloride and an alkoxysilane, the mol ratio of aluminium alkyl dihalide and titanium trichloride being in the range of 0.2:1 to 10:1 and the atomic ratio of aluminium to active silane oxygen being in the range of 5:4 to 10:1, then discontinuing the monomer feed and continuing polymerization with a second feed which is ethylene or a mixture thereof with a lesser quantity of propylene than is present in the first feed, and recovering a product having an ethylene content of 3 to 20 mol. per cent. The alternation of feeds may take place more than once. Silanes specified are trimethylethoxysilane, diethyldiethoxysilane, tetramethoxysilane and ethyl orthosilicate.
GB1345364A 1964-03-05 1964-04-01 Block copolymers of ethylene and propylene Expired GB1058263A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6402202A NL6402202A (en) 1964-03-05 1964-03-05

Publications (1)

Publication Number Publication Date
GB1058263A true GB1058263A (en) 1967-02-08

Family

ID=19789475

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1345364A Expired GB1058263A (en) 1964-03-05 1964-04-01 Block copolymers of ethylene and propylene

Country Status (3)

Country Link
CH (1) CH437804A (en)
GB (1) GB1058263A (en)
NL (1) NL6402202A (en)

Also Published As

Publication number Publication date
NL6402202A (en) 1965-09-06
CH437804A (en) 1967-06-15

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