GB1454870A - Process for the production of elastomeric foils - Google Patents

Process for the production of elastomeric foils

Info

Publication number
GB1454870A
GB1454870A GB5615274A GB5615274A GB1454870A GB 1454870 A GB1454870 A GB 1454870A GB 5615274 A GB5615274 A GB 5615274A GB 5615274 A GB5615274 A GB 5615274A GB 1454870 A GB1454870 A GB 1454870A
Authority
GB
United Kingdom
Prior art keywords
propylene
ethylene
diene terpolymer
polystyrene
production
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
GB5615274A
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.)
Braas GmbH
Original Assignee
Braas GmbH
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 Braas GmbH filed Critical Braas GmbH
Publication of GB1454870A publication Critical patent/GB1454870A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

Thermoplastic rubber, polystyrene, polyethylene, ethylene/propylene/diene terpolymer, carbon black, plasticiser, antiageing agent and/or stabiliser, lubricant and, if appropriate, a graft copolymer of ethylene/propylene/diene terpolymer and high-impact polystyrene, filler and polyisobutylene with an intrinsic viscosity of 3.8-4.6 dl/g are homogeneously mixed together at 100-155 DEG C. The mixture is extruded at approximately 125 DEG C by means of an extruder with a high pressure screw with continually progressive pitch and a compression ratio of 1:2.8 through an annular die to form a tubular film. The film obtained has excellent resistance to environmental stress cracking and ageing and outstanding buckling resistance and tear strength. A watertight bonding of webs of such films can be obtained by solvent welding.
GB5615274A 1974-03-06 1974-12-31 Process for the production of elastomeric foils Expired GB1454870A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2410572A DE2410572C3 (en) 1974-03-06 1974-03-06 Process for making a film with elastomeric properties at elevated temperatures

Publications (1)

Publication Number Publication Date
GB1454870A true GB1454870A (en) 1976-11-03

Family

ID=5909182

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5615274A Expired GB1454870A (en) 1974-03-06 1974-12-31 Process for the production of elastomeric foils

Country Status (9)

Country Link
AT (1) AT343888B (en)
BE (1) BE824035A (en)
CH (1) CH608742A5 (en)
DE (1) DE2410572C3 (en)
DK (1) DK663574A (en)
FR (1) FR2263091B1 (en)
GB (1) GB1454870A (en)
IT (1) IT1033408B (en)
NL (1) NL7500044A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4559938A (en) * 1981-08-12 1985-12-24 Smith And Nephew Associated Companies P.L.C. Adhesive dressing and components

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2621825C3 (en) * 1976-05-17 1980-04-03 Braas & Co Gmbh, 6000 Frankfurt Sealing film for construction with elastomeric properties at elevated temperatures and process for their manufacture
DE3439479C2 (en) * 1984-10-27 1986-11-20 Fa. Carl Freudenberg, 6940 Weinheim Polymer blend and its use

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL290605A (en) * 1962-03-26 1900-01-01
DE2214599C3 (en) * 1972-03-25 1983-11-17 Braas & Co Gmbh, 6000 Frankfurt Process for the production of foils

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4559938A (en) * 1981-08-12 1985-12-24 Smith And Nephew Associated Companies P.L.C. Adhesive dressing and components

Also Published As

Publication number Publication date
NL7500044A (en) 1975-09-09
FR2263091B1 (en) 1979-02-09
DE2410572C3 (en) 1984-02-16
DE2410572A1 (en) 1975-09-25
AT343888B (en) 1978-06-26
BE824035A (en) 1975-04-16
FR2263091A1 (en) 1975-10-03
ATA921374A (en) 1977-10-15
IT1033408B (en) 1979-07-10
DK663574A (en) 1975-10-27
CH608742A5 (en) 1979-01-31
DE2410572B2 (en) 1977-08-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee