ES393831A1 - System of coextrusion of compound pipes of two layers of different thermoplastic materials. (Machine-translation by Google Translate, not legally binding) - Google Patents
System of coextrusion of compound pipes of two layers of different thermoplastic materials. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES393831A1 ES393831A1 ES393831A ES393831A ES393831A1 ES 393831 A1 ES393831 A1 ES 393831A1 ES 393831 A ES393831 A ES 393831A ES 393831 A ES393831 A ES 393831A ES 393831 A1 ES393831 A1 ES 393831A1
- Authority
- ES
- Spain
- Prior art keywords
- coextrusion
- layers
- head
- translation
- legally binding
- 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
Links
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
"SYSTEM OF COEXTRUSION OF COMPOUND TUBES OF TWO LAYERS OF DIFFERENT THERMOPLASTIC MATERIALS", characterized by the fact that it consists of associating and gathering, inside the head and during its formation process, the two thermoplastic sheets of different chemical properties that have of constituting the coextruded tube, in order that the properties of a plastic film of polythene, or other suitable material, are added to those that are characteristic of the second film or stratum, to form an assembly whose mechanical resistance and physical agents or chemical, allow a wider range of applications of said laminar material of stratified constitution, making the coextrusion by means of complementary circular rows, which determine the connection by contact and tight between the two layers that are superimposed, before leaving the head, contributing the air insufflated through the head itself, only to the widening of the tube d e double wall, when it is already formed by the upper part of the head. (Machine-translation by Google Translate, not legally binding)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES393831A ES393831A1 (en) | 1971-07-31 | 1971-07-31 | System of coextrusion of compound pipes of two layers of different thermoplastic materials. (Machine-translation by Google Translate, not legally binding) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES393831A ES393831A1 (en) | 1971-07-31 | 1971-07-31 | System of coextrusion of compound pipes of two layers of different thermoplastic materials. (Machine-translation by Google Translate, not legally binding) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES393831A1 true ES393831A1 (en) | 1973-08-16 |
Family
ID=8458911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES393831A Expired ES393831A1 (en) | 1971-07-31 | 1971-07-31 | System of coextrusion of compound pipes of two layers of different thermoplastic materials. (Machine-translation by Google Translate, not legally binding) |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES393831A1 (en) |
-
1971
- 1971-07-31 ES ES393831A patent/ES393831A1/en not_active Expired
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