BE822398A - Procede perfectionne de scission des chaines de polyolefines derivant de composes ayant au moins trois atomes de carbone - Google Patents

Procede perfectionne de scission des chaines de polyolefines derivant de composes ayant au moins trois atomes de carbone

Info

Publication number
BE822398A
BE822398A BE150683A BE150683A BE822398A BE 822398 A BE822398 A BE 822398A BE 150683 A BE150683 A BE 150683A BE 150683 A BE150683 A BE 150683A BE 822398 A BE822398 A BE 822398A
Authority
BE
Belgium
Prior art keywords
splitting
atoms
compounds
carbon
perfected process
Prior art date
Application number
BE150683A
Other languages
English (en)
French (fr)
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 filed Critical
Publication of BE822398A publication Critical patent/BE822398A/xx

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
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/50—Partial depolymerisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/29—Feeding the extrusion material to the extruder in liquid form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05—Filamentary, e.g. strands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
    • 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
    • C08F2810/00—Chemical modification of a polymer
    • C08F2810/10—Chemical modification of a polymer including a reactive processing step which leads, inter alia, to morphological and/or rheological modifications, e.g. visbreaking

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
BE150683A 1973-11-21 1974-11-20 Procede perfectionne de scission des chaines de polyolefines derivant de composes ayant au moins trois atomes de carbone BE822398A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US417796A US3898209A (en) 1973-11-21 1973-11-21 Process for controlling rheology of C{HD 3{B {30 {0 polyolefins

Publications (1)

Publication Number Publication Date
BE822398A true BE822398A (fr) 1975-05-20

Family

ID=23655431

Family Applications (1)

Application Number Title Priority Date Filing Date
BE150683A BE822398A (fr) 1973-11-21 1974-11-20 Procede perfectionne de scission des chaines de polyolefines derivant de composes ayant au moins trois atomes de carbone

Country Status (9)

Country Link
US (1) US3898209A (nl)
JP (1) JPS5085663A (nl)
BE (1) BE822398A (nl)
CA (1) CA1036298A (nl)
DE (1) DE2454650A1 (nl)
FR (1) FR2251576B1 (nl)
GB (1) GB1484187A (nl)
IT (1) IT1030816B (nl)
NL (1) NL7414353A (nl)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5358564A (en) * 1976-11-08 1978-05-26 Japan Steel Works Ltd Method of controlling properties of thermoplastic resin
US4448736A (en) * 1982-05-24 1984-05-15 Standard Oil Company (Indiana) Continuous in-line melt flow rate control system
US4515745A (en) * 1983-05-18 1985-05-07 Union Carbide Corporation Modification of ethylene vinyl acetate copolymer
JPS60127310A (ja) * 1983-12-13 1985-07-08 Mitsui Toatsu Chem Inc 透明性、ブロツキング性、耐衝撃性に優れたポリプロピレンフイルム
CA1257050A (en) * 1984-10-29 1989-07-04 Douglas C. Edwards Low molecular weight polymer process
US4578430A (en) * 1984-12-19 1986-03-25 Shell Oil Company Controlled degradation or cracking of alpha-olefin polymers
US4624993A (en) * 1985-02-08 1986-11-25 Moore And Munger, Inc. Method for depolymerizing polymers
US4677025A (en) * 1985-08-30 1987-06-30 Shell Oil Company Unique molecular weight distribution polybutylene blend and film
GB2206524B (en) * 1987-07-08 1990-03-07 Courtaulds Films & Packaging Voided polypropylene films
US5006608A (en) * 1988-09-08 1991-04-09 Exxon Chemical Patents, Inc. Catalytic process for oxidative, shear accelerated polymer degradation
FI112252B (fi) * 1990-02-05 2003-11-14 Fibervisions L P Korkealämpötilasietoisia kuitusidoksia
GB9111872D0 (en) * 1991-06-03 1991-07-24 Shell Int Research Polymer process
ES2131556T3 (es) * 1992-01-13 1999-08-01 Hercules Inc Fibra aglutinable termicamente para telas no tejidas de alta resistencia.
SG50447A1 (en) * 1993-06-24 1998-07-20 Hercules Inc Skin-core high thermal bond strength fiber on melt spin system
US5718852A (en) * 1994-05-10 1998-02-17 The Clorox Company Process controlling a blow molding machine
FR2723880B1 (fr) * 1994-08-30 1997-01-03 Bp Chemicals Snc Procede pour modifier un polyethylene dans une extrudeuse
ES2138238T3 (es) * 1994-10-12 2000-01-01 Kimberly Clark Co Composicion de polipropileno termoplastico extrusionable en fusion y elemento laminar no tejido preparado a partir del mismo.
DE4437754A1 (de) * 1994-10-21 1996-04-25 Basf Ag Verfahren zum thermomechanischen Abbau von Polyolefinen
IL116430A (en) * 1994-12-19 2000-08-13 Hercules Inc Process for preparing a polypropylene containing fiber
US5738745A (en) * 1995-11-27 1998-04-14 Kimberly-Clark Worldwide, Inc. Method of improving the photostability of polypropylene compositions
US6060584A (en) * 1998-05-13 2000-05-09 Eastman Chemical Company Process for the degradation of polyolefins
US6433133B1 (en) 1999-11-16 2002-08-13 Eastman Chemical Company Process for reducing the weight average molecular weight and melt index ratio of polyethylenes and polyethylene products
US20050012235A1 (en) * 2001-11-30 2005-01-20 Schregenberger Sandra D Oxygen tailoring of polyethylene resins
ES2266581T3 (es) * 2001-11-30 2007-03-01 Univation Technologies, Llc Corte a medida con oxigeno de resinas de polietileno.
US20060038315A1 (en) * 2004-08-19 2006-02-23 Tunnell Herbert R Iii Oxygen tailoring of polyethylene resins
US8202940B2 (en) * 2004-08-19 2012-06-19 Univation Technologies, Llc Bimodal polyethylene compositions for blow molding applications
US7892466B2 (en) 2004-08-19 2011-02-22 Univation Technologies, Llc Oxygen tailoring of polyethylene resins
US7451600B2 (en) * 2005-07-06 2008-11-18 Pratt & Whitney Canada Corp. Gas turbine engine combustor with improved cooling
EP2585500A4 (en) * 2010-06-28 2014-03-12 Polymers Crc Ltd MODIFICATION OF PROPYLENE POLYMERS
DE102012222991A1 (de) * 2012-12-12 2014-06-12 Henkel Ag & Co. Kgaa Verfahren zur Degradierung von (Co)polymeren
WO2024170551A1 (en) 2023-02-14 2024-08-22 Totalenergies Onetech Process for treatment of an initial polypropylene-containing material to produce a polypropylene composition for injection molding

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL212714A (nl) * 1955-12-06 1900-01-01
US2911384A (en) * 1957-02-05 1959-11-03 Sun Oil Co Oxygenated crystalline polypropylene, method of making, and wax composition containing same
US3087922A (en) * 1958-05-13 1963-04-30 Phillips Petroleum Co Method and apparatus for pyrolyzing polymers
US3144436A (en) * 1961-01-04 1964-08-11 Du Pont Process for degrading stereoregular polymers
US3551943A (en) * 1966-12-19 1971-01-05 Exxon Research Engineering Co Controlled degradation
US3608001A (en) * 1969-08-26 1971-09-21 Exxon Research Engineering Co Controlled degradation of polypropylene in extruder-reactor
US3563972A (en) * 1969-10-15 1971-02-16 Exxon Research Engineering Co Low melt elasticity composition of polypropylene

Also Published As

Publication number Publication date
IT1030816B (it) 1979-04-10
FR2251576B1 (nl) 1980-05-16
JPS5085663A (nl) 1975-07-10
FR2251576A1 (nl) 1975-06-13
CA1036298A (en) 1978-08-08
DE2454650A1 (de) 1975-05-22
NL7414353A (nl) 1975-05-23
GB1484187A (en) 1977-09-01
US3898209A (en) 1975-08-05

Similar Documents

Publication Publication Date Title
BE822398A (fr) Procede perfectionne de scission des chaines de polyolefines derivant de composes ayant au moins trois atomes de carbone
FR1482380A (fr) Procédé de préparation de polymères cristallins de propylène modifiés
RO69412A (ro) Procedeu pentru prepararea unor compozitii polimere pe baza de polipropilena
FR1301698A (fr) Procédé pour la polymérisation de mono-alpha-oléfines renfermant trois ou plus de trois atomes de carbone
FR2311032A1 (fr) Procede de polymerisation d'alpha-olefines contenant au moins 3 atomes de carbone
BE821337A (fr) Procede de production de terpolymeres cristallins du propylene avec l'ethylene et le butene-1
BE847217A (fr) Procede pour la production de copolymeres a blocs d'ethylene et de propylene,
OA05346A (fr) Procédé de préparation de composés hétérocycliques substitués par des groupes acylamino.
BE830752A (fr) Procede de production de terpolymeres cristallins de l'ethylene, du butene-1 et butene-2
YU40206B (en) Process for the purification of high-carystalline polyolefines, such as propylene homo-or copolymers
FR2311003A1 (fr) Procede perfectionne pour la preparation de derives d'ethylene et produits obtenus
BE877781A (fr) Procede de production de copolymeres sequences propylene/ethylene
FR1301596A (fr) Procédé pour la polymérisation de mono-alpha-oléfines renfermant trois ou plus de trois atomes de carbone
PT65005A (fr) Procede de preparation d'acides benzenecarboxyliques par oxydation de benzenes substitues par des groupes alcoyle
ES219747Y (es) Abrazadera perfeccionada de material plastico para tuberias,cables o analogos.
BE834885A (fr) Procede en vue de separer, de solutions aqueuses, des acides perfluoralcane-carboxyliques a chaines carbonees de 1 a 12 atomes de carbone
FR2308645A1 (fr) Procede ameliore de polymerisation radicalaire de l'ethylene
BE770143A (fr) Procede de purification d'hexahydro-1,4-diazepine-3- et 5-ones 1-n-substituees
BE843624A (fr) Procede perfectionne d'epuration de polychlorure de vinyle
BE847862A (fr) Procede d'isolement direct de l'isobutylene de melanges d'hydrocarbures,
FR1569229A (fr) Procede d'elimination de l'anhydride titanique de dechets de hauts polymères synthetiques
BE775703A (fr) Procede perfectionne d'obtention de carbone active
FR2318166A1 (fr) Procede de preparation continue de 2,5-dioxo-1-oxa-2-phospholanes
BE845239A (fr) Procede de preparation en continu d'o- et de p- chlorotoluene
BE748292A (fr) Copolymeres vulcanisables d'ethylene de propylene, de 1,3-butadiene et de dicyclopentadiene et procede pour leur preparation