ES407285A3 - Some improvements in the manufacture of spongy laminar materials. (Machine-translation by Google Translate, not legally binding) - Google Patents

Some improvements in the manufacture of spongy laminar materials. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES407285A3
ES407285A3 ES407285A ES407285A ES407285A3 ES 407285 A3 ES407285 A3 ES 407285A3 ES 407285 A ES407285 A ES 407285A ES 407285 A ES407285 A ES 407285A ES 407285 A3 ES407285 A3 ES 407285A3
Authority
ES
Spain
Prior art keywords
tube
cooling
wall
translation
manufacture
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
ES407285A
Other languages
Spanish (es)
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.)
Plasticos Celulosicos SA
Original Assignee
Plasticos Celulosicos SA
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 Plasticos Celulosicos SA filed Critical Plasticos Celulosicos SA
Priority to ES407285A priority Critical patent/ES407285A3/en
Publication of ES407285A3 publication Critical patent/ES407285A3/en
Expired legal-status Critical Current

Links

Landscapes

  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)

Abstract

Improvements in the manufacture of foamed sheet materials, characterized by comprising an extrusion phase of a hot hollow tube, a resin of expandable thermoplastic material, then proceeding to the cooling of an external wall of said tube by a refrigerant fluid distributed by means envelopes externally of said wall, in a short period of time after extrusion, to form an impermeable, non-porous external layer, and then proceeding to the cooling of the internal wall of said tube by means other means distributing cooling fluid that are surrounded by the wall of the tube itself, in a short time after emerging from it from the extrusion head, to form a waterproof, non-porous inner layer, so that cooling of the external and internal part is insufficient to cool the part of the tube, with which the core of the tube expands a, constituting spongy material. (Machine-translation by Google Translate, not legally binding)
ES407285A 1972-09-28 1972-09-28 Some improvements in the manufacture of spongy laminar materials. (Machine-translation by Google Translate, not legally binding) Expired ES407285A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES407285A ES407285A3 (en) 1972-09-28 1972-09-28 Some improvements in the manufacture of spongy laminar materials. (Machine-translation by Google Translate, not legally binding)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES407285A ES407285A3 (en) 1972-09-28 1972-09-28 Some improvements in the manufacture of spongy laminar materials. (Machine-translation by Google Translate, not legally binding)

Publications (1)

Publication Number Publication Date
ES407285A3 true ES407285A3 (en) 1975-10-16

Family

ID=8462325

Family Applications (1)

Application Number Title Priority Date Filing Date
ES407285A Expired ES407285A3 (en) 1972-09-28 1972-09-28 Some improvements in the manufacture of spongy laminar materials. (Machine-translation by Google Translate, not legally binding)

Country Status (1)

Country Link
ES (1) ES407285A3 (en)

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