GB1476479A - Large diameter pipe from ethylene polymer - Google Patents

Large diameter pipe from ethylene polymer

Info

Publication number
GB1476479A
GB1476479A GB3044774A GB3044774A GB1476479A GB 1476479 A GB1476479 A GB 1476479A GB 3044774 A GB3044774 A GB 3044774A GB 3044774 A GB3044774 A GB 3044774A GB 1476479 A GB1476479 A GB 1476479A
Authority
GB
United Kingdom
Prior art keywords
large diameter
ethylene polymer
diameter pipe
poise
july
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
GB3044774A
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 GB1476479A publication Critical patent/GB1476479A/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

1476479 Pipes made from ethylene copolymers DU PONT OF CANADA Ltd 9 July 1974 [18 July 1973 (2)] 30447/74 Heading C3P Pipes of diameter at least 6 inches are made from ethylene copolymers or copolymer blends containing at least one C 4 -C 10 olefin and having the following properties:-a density of 0À937- 0À944, a melt index not more than 0À4 and a melt viscosity at 190‹ C. not more than 2 x 10<SP>4</SP> poise at an apparent shear rate of 100 sec.<SP>-1</SP> and at least 3 x 10<SP>5</SP> poise at an apparent shear rate of 0À1 sec.<SP>-1</SP>. The materials preferably contain carbon.
GB3044774A 1973-07-18 1974-07-09 Large diameter pipe from ethylene polymer Expired GB1476479A (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
GB1476479A true GB1476479A (en) 1977-06-16

Family

ID=25667314

Family Applications (2)

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

Family Applications Before (1)

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

Country Status (1)

Country Link
GB (2) GB1476480A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0047625A2 (en) * 1980-09-04 1982-03-17 Du Pont Canada Inc. Pipe manufactured from irradiated polyethylene containing carbon black

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4374227A (en) * 1981-05-15 1983-02-15 Union Carbide Corporation Extruded gloss improvement in pipe blends with low pressure low density polyethylene
GB201213728D0 (en) 2012-08-02 2012-09-12 Ineos Europe Ag Pipes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0047625A2 (en) * 1980-09-04 1982-03-17 Du Pont Canada Inc. Pipe manufactured from irradiated polyethylene containing carbon black
EP0047625A3 (en) * 1980-09-04 1982-03-31 Du Pont Canada Inc. Pipe manufactured from irradiated polyethylene containing carbon black

Also Published As

Publication number Publication date
GB1476480A (en) 1977-06-16
AU6933674A (en) 1975-11-27

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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