IE36757B1 - Improvements in or relating to acrylonitrile polymer compositions - Google Patents

Improvements in or relating to acrylonitrile polymer compositions

Info

Publication number
IE36757B1
IE36757B1 IE1387/72A IE138772A IE36757B1 IE 36757 B1 IE36757 B1 IE 36757B1 IE 1387/72 A IE1387/72 A IE 1387/72A IE 138772 A IE138772 A IE 138772A IE 36757 B1 IE36757 B1 IE 36757B1
Authority
IE
Ireland
Prior art keywords
acrylonitrile
films
polymer
nitrile groups
filaments
Prior art date
Application number
IE1387/72A
Other versions
IE36757L (en
Original Assignee
Du Pont
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 Du Pont filed Critical Du Pont
Publication of IE36757L publication Critical patent/IE36757L/en
Publication of IE36757B1 publication Critical patent/IE36757B1/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/18—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
    • 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
    • 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
    • B29C48/92—Measuring, controlling or regulating
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/28—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/38—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising unsaturated nitriles as the major constituent
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92514—Pressure
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895—Barrel or housing
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Filaments (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Multicomponent Fibers (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

1414651 Acrylonitrile fibres and films E I DU PONT DE NEMOURS & CO 16 Oct 1972 [14 Oct 1971] 47646/72 Heading B6B [Also in Division C3] An extrudable substantially single-phase polymer composition particularly useful for forming filaments and films comprises an acrylonitrile polymer containing at least 40% by weight acrylonitrile units and water, the water present being completely or partially in the form of a hydrate with the nitrile groups of the polymer. The composition is prepared by heating the polymer under at least autogenous pressure with sufficient water to hydrate at least 45% of all the nitrile groups or at least 80% of the coupled nitrile groups to a temperature at which hydration takes place. In examples polyacrylonitrile and copolymers of acrylonitrile with one or more of methylacrylate, sodium styrene sulphonate, styrene, ethylene, 2-methyl-5-vinyl pyridine and vinyl acetate are heated to temperatures from 140-205‹ C. and the compositions are extruded to form filaments and films. Films may be stretched by inflation using steam to produce the internal pressure, and the product has a layered structure in which an inner core of material containing voids is interposed between layers having no voids and the density which is higher than that of the core. Those filaments wherein the acrylonitrile polymer contains at least 80% by weight of acrylonitrile units form the subject of divisional Specification 1,414,652. [GB1414651A]
IE1387/72A 1971-10-14 1972-10-12 Improvements in or relating to acrylonitrile polymer compositions IE36757B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18920271A 1971-10-14 1971-10-14

Publications (2)

Publication Number Publication Date
IE36757L IE36757L (en) 1973-04-14
IE36757B1 true IE36757B1 (en) 1977-02-16

Family

ID=22696359

Family Applications (2)

Application Number Title Priority Date Filing Date
IE1387/72A IE36757B1 (en) 1971-10-14 1972-10-12 Improvements in or relating to acrylonitrile polymer compositions
IE2797/75A IE36758B1 (en) 1971-10-14 1972-10-12 Improvements in or relating to synthetic polymer filament

Family Applications After (1)

Application Number Title Priority Date Filing Date
IE2797/75A IE36758B1 (en) 1971-10-14 1972-10-12 Improvements in or relating to synthetic polymer filament

Country Status (21)

Country Link
JP (1) JPS5442023B2 (en)
AR (1) AR198797A1 (en)
AU (1) AU4775772A (en)
BE (1) BE790107A (en)
BR (1) BR7207167D0 (en)
CA (1) CA1034328A (en)
CH (1) CH540306A (en)
DE (1) DE2248244B2 (en)
ES (1) ES407614A1 (en)
FR (1) FR2156337B1 (en)
GB (2) GB1414651A (en)
IE (2) IE36757B1 (en)
IL (1) IL40560A0 (en)
IN (1) IN139404B (en)
LU (1) LU66301A1 (en)
NL (1) NL164910C (en)
OA (1) OA04203A (en)
PL (1) PL74841B1 (en)
RO (1) RO86220B (en)
TR (1) TR17873A (en)
ZA (1) ZA727281B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL43990A (en) * 1973-02-05 1976-08-31 American Cyanamid Co Method of spining fiber using a fusion-melt polymer composition
US3873508A (en) * 1973-12-27 1975-03-25 Du Pont Preparation of acrylonitrile polymer
US4238442A (en) * 1978-12-29 1980-12-09 E. I. Du Pont De Nemours And Company Process for melt spinning acrylonitrile polymer hydrates
DE19959532C1 (en) * 1999-12-10 2001-10-04 Seitz Schenk Filtersystems Gmb Method and device for the production of filtration-active fibers
GB2370248A (en) * 1999-12-10 2002-06-26 Seitzschenk Filtersystems Gmbh Production of filtration-active fibres

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2585499A (en) * 1948-07-29 1952-02-12 Du Pont Production of shaped articles from acrylonitrile polymers
US2585444A (en) * 1948-07-29 1952-02-12 Du Pont Preparation of shaped articles from acrylonitrile polymers
US3402231A (en) * 1964-05-21 1968-09-17 Monsanto Co Process for preparing synthetic fibers for paper products
US3388202A (en) * 1965-09-27 1968-06-11 Monsanto Co Method for melting acrylonitrile polymers and copolymers
US3354856A (en) * 1966-03-16 1967-11-28 Joseph R Annibale Submerged object lifting device
US3896204A (en) * 1972-10-02 1975-07-22 Du Pont Melt-extrusion of acrylonitrile polymers into filaments
US3873508A (en) * 1973-12-27 1975-03-25 Du Pont Preparation of acrylonitrile polymer

Also Published As

Publication number Publication date
AR198797A1 (en) 1974-07-24
NL164910C (en) 1981-02-16
FR2156337B1 (en) 1977-04-01
PL74841B1 (en) 1974-12-31
NL164910B (en) 1980-09-15
JPS4849839A (en) 1973-07-13
CH540306A (en) 1973-08-15
IN139404B (en) 1976-06-12
IE36757L (en) 1973-04-14
DE2248244B2 (en) 1978-12-14
JPS5442023B2 (en) 1979-12-12
TR17873A (en) 1976-09-01
GB1414652A (en) 1975-11-19
ES407614A1 (en) 1975-10-01
RO86220A (en) 1985-03-15
DE2248244A1 (en) 1973-04-19
OA04203A (en) 1979-12-31
BE790107A (en) 1973-04-13
CA1034328A (en) 1978-07-11
NL7213907A (en) 1973-04-17
IE36758B1 (en) 1977-02-16
IL40560A0 (en) 1972-12-29
ZA727281B (en) 1973-08-29
LU66301A1 (en) 1973-01-23
RO86220B (en) 1985-03-31
BR7207167D0 (en) 1973-07-26
FR2156337A1 (en) 1973-05-25
AU4775772A (en) 1974-04-26
GB1414651A (en) 1975-11-19

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