GB1190492A - Crystalline Block Copolymers of Aliphatic Alpha-Olefins - Google Patents

Crystalline Block Copolymers of Aliphatic Alpha-Olefins

Info

Publication number
GB1190492A
GB1190492A GB303668A GB303668A GB1190492A GB 1190492 A GB1190492 A GB 1190492A GB 303668 A GB303668 A GB 303668A GB 303668 A GB303668 A GB 303668A GB 1190492 A GB1190492 A GB 1190492A
Authority
GB
United Kingdom
Prior art keywords
segment
poly
alpha
pentene
ethylene
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
GB303668A
Inventor
Irving Leibson
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.)
Dart Industries Inc
Original Assignee
Dart Industries Inc
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 Dart Industries Inc filed Critical Dart Industries Inc
Publication of GB1190492A publication Critical patent/GB1190492A/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
    • C08F297/00—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
    • C08F297/06—Macromolecular 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
    • C08F297/08—Macromolecular 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

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)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

1,190,492. Olefin block copolymers. DART INDUSTRIES Inc. 19 Jan., 1968 [20 Jan., 1967], No. 3036/68. Heading C3P. An alpha-olefin block copolymer comprises at least two segments, A and B, segment A consisting of a random copolymer of at least two alpha-olefins, at least one of which constitutes 90 to 99 mole per cent of the segment, the segment A constituting 60 to 96% of the block copolymer, segment B consisting of a homopolymer of an alpha-olefin having from 2 to 9 carbon atoms and constituting 40 to 4% of the composition. Both segments exhibit a crystalline structure, as indicated by X-ray analysis. Segment A has a molecular weight of 50,000 to 500,000, while segment B has a molecular weight of 20,000 to 2,000,000. The polymers are obtained by a conventional sequential polymerization in the presence of a Ziegler-Natta catalyst. The process is normally carried out in the presence of hydrogen as a molecular weight regulator. The exemplified copolymers are all poly-(propylene-b-[ethyleneco-propylene]). Also mentioned specifically are poly - (ethylene - b - [ethylene - co - propylene]), poly - (ethylene-b - [ethylene - co - butene- 13]), poly - (4 - methyl - pentene - 1 - b - [hexene - 1 - co - 4 - methyl - pentene - 1]) and poly - (4- methyl - pentene - 1 - b - [octene - 1 - co - 4 - methyl - pentene - 1]). The block copolymers resulting from the process may mix with homo- or copolymers of the alpha-olefins.
GB303668A 1967-01-20 1968-01-19 Crystalline Block Copolymers of Aliphatic Alpha-Olefins Expired GB1190492A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US61050267A 1967-01-20 1967-01-20

Publications (1)

Publication Number Publication Date
GB1190492A true GB1190492A (en) 1970-05-06

Family

ID=24445270

Family Applications (1)

Application Number Title Priority Date Filing Date
GB303668A Expired GB1190492A (en) 1967-01-20 1968-01-19 Crystalline Block Copolymers of Aliphatic Alpha-Olefins

Country Status (3)

Country Link
DE (1) DE1745358B2 (en)
FR (1) FR1551643A (en)
GB (1) GB1190492A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5733980A (en) * 1994-04-06 1998-03-31 Exxon Chemical Patents Inc. Ethylene α-olefin block copolymers and methods for production thereof
US5798420A (en) * 1994-04-06 1998-08-25 Exxon Chemical Patents, Inc. Ethylene-alpha olefin block copolymers and methods for production thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69115439T2 (en) * 1990-10-25 1996-06-13 Tokuyama Corp Propylene-ethylene / butene block copolymer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5733980A (en) * 1994-04-06 1998-03-31 Exxon Chemical Patents Inc. Ethylene α-olefin block copolymers and methods for production thereof
US5798420A (en) * 1994-04-06 1998-08-25 Exxon Chemical Patents, Inc. Ethylene-alpha olefin block copolymers and methods for production thereof

Also Published As

Publication number Publication date
DE1745358A1 (en) 1972-08-31
FR1551643A (en) 1968-12-27
DE1745358B2 (en) 1979-02-15

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee