GB1476480A - Ethylene polymers for large diameter pipe - Google Patents

Ethylene polymers for large diameter pipe

Info

Publication number
GB1476480A
GB1476480A GB5454876A GB5454876A GB1476480A GB 1476480 A GB1476480 A GB 1476480A GB 5454876 A GB5454876 A GB 5454876A GB 5454876 A GB5454876 A GB 5454876A GB 1476480 A GB1476480 A GB 1476480A
Authority
GB
United Kingdom
Prior art keywords
ethylene
poise
july
copolymers
sec
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
GB5454876A
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.)
DuPont Canada Inc
Original Assignee
DuPont Canada 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
Priority claimed from CA176,756A external-priority patent/CA1017495A/en
Priority claimed from CA176,757A external-priority patent/CA1017496A/en
Application filed by DuPont Canada Inc filed Critical DuPont Canada Inc
Publication of GB1476480A publication Critical patent/GB1476480A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
    • C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
    • 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
    • C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers

Abstract

1476480 Ethylene copolymers DU PONT OF CANADA Ltd 9 July 1974 [18 July 1973 (2)] 54548/76 Divided out of 1476479 Heading C3P Ethylene copolymers or copolmer blends containing at least one C 4 -C 10 olefin have the following properties: a density of 0À937- 0À944, a melt index of 0À2-0À4, a melt viscosity at 190‹ C. not more than 2À0 x 10<SP>4</SP> poise at an apparent shear rate of 100 sec.<SP>-1</SP> and not less than 3 x 10<SP>5</SP> poise at an apparent shear rate of 0À1 sec.<SP>-1</SP> and a stress exponent of 1À6-2À0. In one example a suitable copolymer is prepared by polymerizing ethylene and butene-1 in cyclohexane using VOCl 3 , TiCl 4 and aluminium triisoprenyl in the presence of hydrogen. In another, different ethylene/ butene copolymers are blended. The products are compounded with carbon and used to make pipes.
GB5454876A 1973-07-18 1974-07-09 Ethylene polymers for large diameter pipe Expired GB1476480A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA176,756A CA1017495A (en) 1973-07-18 1973-07-18 Ethylene polymers for large diameter pipe
CA176,757A CA1017496A (en) 1973-07-18 1973-07-18 Pipe manufactured from ethylene polymers

Publications (1)

Publication Number Publication Date
GB1476480A true GB1476480A (en) 1977-06-16

Family

ID=25667314

Family Applications (2)

Application Number Title Priority Date Filing Date
GB3044774A Expired GB1476479A (en) 1973-07-18 1974-07-09 Large diameter pipe from ethylene polymer
GB5454876A Expired GB1476480A (en) 1973-07-18 1974-07-09 Ethylene polymers for large diameter pipe

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB3044774A Expired GB1476479A (en) 1973-07-18 1974-07-09 Large diameter pipe from ethylene polymer

Country Status (1)

Country Link
GB (2) GB1476479A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0066973A1 (en) * 1981-05-15 1982-12-15 Union Carbide Corporation Extruded gloss improvement in pipe blends with low pressure low density polyethylene
WO2014020096A1 (en) * 2012-08-02 2014-02-06 Ineos Europe Ag Pipes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1142882A (en) * 1980-09-04 1983-03-15 George White Pipe manufactured from irradiated polyethylene containing carbon black

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0066973A1 (en) * 1981-05-15 1982-12-15 Union Carbide Corporation Extruded gloss improvement in pipe blends with low pressure low density polyethylene
WO2014020096A1 (en) * 2012-08-02 2014-02-06 Ineos Europe Ag Pipes
US10197208B2 (en) 2012-08-02 2019-02-05 Ineos Europe Ag Pipes

Also Published As

Publication number Publication date
AU6933674A (en) 1975-11-27
GB1476479A (en) 1977-06-16

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Legal Events

Date Code Title Description
414F Notice of opposition given (sect. 14/1949)
414E Application relinquished (sect. 14/1949)
CSNS Application of which complete specification have been accepted and published, but patent is not sealed