IT1144111B - Insulating casing mfr. for expanded plastics pipes - Google Patents
Insulating casing mfr. for expanded plastics pipesInfo
- Publication number
- IT1144111B IT1144111B IT67257/81A IT6725781A IT1144111B IT 1144111 B IT1144111 B IT 1144111B IT 67257/81 A IT67257/81 A IT 67257/81A IT 6725781 A IT6725781 A IT 6725781A IT 1144111 B IT1144111 B IT 1144111B
- Authority
- IT
- Italy
- Prior art keywords
- panel
- coating
- flexible
- shells
- hinge
- Prior art date
Links
- 239000004033 plastic Substances 0.000 title abstract 2
- 229920003023 plastic Polymers 0.000 title abstract 2
- 239000011248 coating agent Substances 0.000 abstract 3
- 238000000576 coating method Methods 0.000 abstract 3
- 238000005253 cladding Methods 0.000 abstract 2
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 230000009970 fire resistant effect Effects 0.000 abstract 1
- 239000006260 foam Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000004814 polyurethane Substances 0.000 abstract 1
- 229920002635 polyurethane Polymers 0.000 abstract 1
- 239000011527 polyurethane coating Substances 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 230000000284 resting effect Effects 0.000 abstract 1
Landscapes
- Thermal Insulation (AREA)
Abstract
A system of polyurethane raw materials is prepared in the liq. phase and spread as a coating onto an expanded or foam panel, which is initially flat but flexible and has a plastics facing laminated on its lower side: this panel is then placed on two semicylindrical moulds, connected at their common longitudinal edge by a hinge, and each resting in an airtight chamber connected to a vacuum source. Vacuum is then applied to draw the flexible panel together with its liquid coating down into the shells, whereupon one of these shells is rotated through 180 deg. about the hinge to close the cylinder. Hot air is then blown through the cylinder to activate and harden the polyurethane coating. Used as an insulating cladding for pipes. By applying the internal coating in this way, the initial panel, flat in form, can readily be impregnated with self-extinguishing agents to improve its fire resistance. Thus the resultant cladding is highly fire resistant. The flexible form is locked into cylindrical shape by the internal solidified lining so that, even if the shell is opened to fit around a pipe, it naturally re-adopts its cylindrical form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT67257/81A IT1144111B (en) | 1981-02-24 | 1981-02-24 | Insulating casing mfr. for expanded plastics pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT67257/81A IT1144111B (en) | 1981-02-24 | 1981-02-24 | Insulating casing mfr. for expanded plastics pipes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IT8167257A0 IT8167257A0 (en) | 1981-02-24 |
| IT1144111B true IT1144111B (en) | 1986-10-29 |
Family
ID=11300905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT67257/81A IT1144111B (en) | 1981-02-24 | 1981-02-24 | Insulating casing mfr. for expanded plastics pipes |
Country Status (1)
| Country | Link |
|---|---|
| IT (1) | IT1144111B (en) |
-
1981
- 1981-02-24 IT IT67257/81A patent/IT1144111B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| IT8167257A0 (en) | 1981-02-24 |
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