GB1469157A - Process for the production of gels of fibrids of a poly- alpha-olefin - Google Patents

Process for the production of gels of fibrids of a poly- alpha-olefin

Info

Publication number
GB1469157A
GB1469157A GB2039074A GB2039074A GB1469157A GB 1469157 A GB1469157 A GB 1469157A GB 2039074 A GB2039074 A GB 2039074A GB 2039074 A GB2039074 A GB 2039074A GB 1469157 A GB1469157 A GB 1469157A
Authority
GB
United Kingdom
Prior art keywords
gel
fibrids
gels
production
produce
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
GB2039074A
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.)
SnamProgetti SpA
Original Assignee
SnamProgetti SpA
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 SnamProgetti SpA filed Critical SnamProgetti SpA
Publication of GB1469157A publication Critical patent/GB1469157A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H5/00—Special paper or cardboard not otherwise provided for
    • D21H5/12—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials
    • D21H5/20—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials of organic non-cellulosic fibres too short for spinning, with or without cellulose fibres
    • D21H5/202—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials of organic non-cellulosic fibres too short for spinning, with or without cellulose fibres polyolefins
    • 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
    • C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/38—Formation of filaments, threads, or the like during polymerisation
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/10—Organic non-cellulose fibres
    • D21H13/12—Organic non-cellulose fibres from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H13/14—Polyalkenes, e.g. polystyrene polyethylene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Artificial Filaments (AREA)
  • Paper (AREA)

Abstract

1469157 Production of polyalphaolefin fibrid gels SNAM PROGETTI SpA 8 May 1974 [9 May 1973] 20390/74 Heading C3P Alphaolefins are homopolymerized to produce a fibrous gel in the presence of (a) AlR x X 3-x where R is hydrocarbon, X is halogen and x is 1#Î#2, and (b) a vanadium compound of the formula V(NR<SP>1</SP> 2 ) 4 or a mixture of a vanadium or vanadyl halide and an aluminium compound of formula Al(NR<SP>2</SP> 2 ) 3 where R<SP>1</SP> and R<SP>2</SP> are hydrocarbon radicals. The process is carried out in the presence of a non-solvent for the homopolymer formed. The fibrous gel is then ground to produce a gel of homopolymer fibrids of the polymerization process may be carried out in the presence of hydrogen. Examples refer to the production of polyethylene fibrous gels by the polymerization of ethylene in heptane in the presence of V(NMe 2 ) 4 + AlEtCl 2 orAlEtCl 2 + Al(NMe 2 ) 3 + VCl 4 or VOCl 3 , followed by separation of the gel containing polymerization solvent and grinding thereof to produce the gel of fibrids.
GB2039074A 1973-05-09 1974-05-08 Process for the production of gels of fibrids of a poly- alpha-olefin Expired GB1469157A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT23864/73A IT987223B (en) 1973-05-09 1973-05-09 PROCEDURE FOR THE PRODUCTION OF FIBROUS POLYALFAO LEFINE GELI

Publications (1)

Publication Number Publication Date
GB1469157A true GB1469157A (en) 1977-03-30

Family

ID=11210500

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2039074A Expired GB1469157A (en) 1973-05-09 1974-05-08 Process for the production of gels of fibrids of a poly- alpha-olefin

Country Status (15)

Country Link
JP (1) JPS5018581A (en)
BE (1) BE814716A (en)
CA (1) CA1040336A (en)
CH (1) CH606136A5 (en)
CS (2) CS186299B2 (en)
DD (2) DD116622A5 (en)
DE (1) DE2422377A1 (en)
FR (1) FR2269545B1 (en)
GB (1) GB1469157A (en)
HU (1) HU168304B (en)
IT (1) IT987223B (en)
LU (1) LU70021A1 (en)
NL (1) NL7406209A (en)
SU (1) SU585816A3 (en)
ZA (1) ZA742975B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0546093Y2 (en) * 1987-10-31 1993-12-01

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT967855B (en) * 1972-09-26 1974-03-11 Snam Progetti PROCESS FOR THE PRODUCTION OF POLYETHYLENE WITH RESTRICTED DISTRIBUTION OF MOLECULAR WEIGHTS

Also Published As

Publication number Publication date
BE814716A (en) 1974-09-02
SU585816A3 (en) 1977-12-25
DD113014A5 (en) 1975-05-12
DE2422377A1 (en) 1974-11-28
CH606136A5 (en) 1978-10-31
ZA742975B (en) 1975-05-28
LU70021A1 (en) 1974-10-01
FR2269545A1 (en) 1975-11-28
JPS5018581A (en) 1975-02-27
CA1040336A (en) 1978-10-10
FR2269545B1 (en) 1977-10-28
CS186266B2 (en) 1978-11-30
CS186299B2 (en) 1978-11-30
HU168304B (en) 1976-03-28
IT987223B (en) 1975-02-20
AU6814274A (en) 1975-10-23
DD116622A5 (en) 1975-12-05
NL7406209A (en) 1974-11-12

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee