GB965626A - Finely divided polyolefins - Google Patents

Finely divided polyolefins

Info

Publication number
GB965626A
GB965626A GB4754962A GB4754962A GB965626A GB 965626 A GB965626 A GB 965626A GB 4754962 A GB4754962 A GB 4754962A GB 4754962 A GB4754962 A GB 4754962A GB 965626 A GB965626 A GB 965626A
Authority
GB
United Kingdom
Prior art keywords
polyolefin
finely divided
parts
amount
block copolymer
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
GB4754962A
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.)
Millennium Petrochemicals Inc
Original Assignee
National Destillers and Chemical 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 National Destillers and Chemical Corp filed Critical National Destillers and Chemical Corp
Publication of GB965626A publication Critical patent/GB965626A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
    • C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/12—Powdering or granulating
    • C08J3/16—Powdering or granulating by coagulating dispersions
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment

Abstract

A proces for preparing a polyolefin in finely divided form comprises subjecting a mixture of molten, normally solid polyolefin and water to vigorous agitation in the presence of a minor amount of a block copolymer of ethylene oxide and propylene oxide at elevated temperature and pressure, the temperature being such that the meltflow rate of the polyolefin is at least 15, and cooling the dispersion to below the softening temperature of the polyolefin. The amount of the block copolymer is preferably between 0.5 and 15 parts by weight per 100 parts of polyolefin and the amount of water is preferably between 0.6 and 9 parts per part of polyolefin.
GB4754962A 1961-12-20 1962-12-17 Finely divided polyolefins Expired GB965626A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16073361A 1961-12-20 1961-12-20

Publications (1)

Publication Number Publication Date
GB965626A true GB965626A (en) 1964-08-06

Family

ID=22578180

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4754962A Expired GB965626A (en) 1961-12-20 1962-12-17 Finely divided polyolefins

Country Status (3)

Country Link
CH (1) CH431959A (en)
DE (1) DE1223153B (en)
GB (1) GB965626A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009045731A2 (en) * 2007-09-28 2009-04-09 Dow Global Technologies Inc. Dispersions of higher crystallinity olefins

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009045731A2 (en) * 2007-09-28 2009-04-09 Dow Global Technologies Inc. Dispersions of higher crystallinity olefins
WO2009045731A3 (en) * 2007-09-28 2009-07-02 Dow Global Technologies Inc Dispersions of higher crystallinity olefins
US8318257B2 (en) 2007-09-28 2012-11-27 Dow Global Technologies Llc Dispersions of higher crystallinity olefins
TWI408157B (en) * 2007-09-28 2013-09-11 Dow Global Technologies Llc Dispersions of higher crystallinity olefins
EP2543393A3 (en) * 2007-09-28 2013-10-30 Dow Global Technologies LLC Foam produced from a dispersion of higher crystallinity olefins
EP2543764A3 (en) * 2007-09-28 2013-10-30 Dow Global Technologies LLC Cellulose-based article with dispersion of higher crystallinity olefin

Also Published As

Publication number Publication date
DE1223153B (en) 1966-08-18
CH431959A (en) 1967-03-15

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