IT1024485B - Rigid lightweight polyurethane foam panels - and mouldings with foamed polystyrene particles as filler - Google Patents
Rigid lightweight polyurethane foam panels - and mouldings with foamed polystyrene particles as fillerInfo
- Publication number
- IT1024485B IT1024485B IT5458574A IT5458574A IT1024485B IT 1024485 B IT1024485 B IT 1024485B IT 5458574 A IT5458574 A IT 5458574A IT 5458574 A IT5458574 A IT 5458574A IT 1024485 B IT1024485 B IT 1024485B
- Authority
- IT
- Italy
- Prior art keywords
- foamed polystyrene
- polystyrene particles
- mould
- mouldings
- shaped
- Prior art date
Links
Landscapes
- Polyurethanes Or Polyureas (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Abstract
Rigid lightweight solid structured articles are composed of (a) 3.38-7.73 wt. % (on a+b) of comminuted foamed polystyrene particles adhesively embedded in (b) a thermoset polyurethane and foam matrix. Used esp. in the prodn. of decorative shaped blocks or panels which are opt. faced with glass, mirrors, aluminium, copper, ceramic tiles, high pressure decorative laminates, etc. In pref. method of mfr., 7-15 pts. comminuted foamed polystyrene particles are mixed with 100 pts. of the diisocyanate component of the polyurethane for 20 sec. to 1 min. to wet the particles, the polyol component and catalyst are added, mixed for a few secs. to homogenise the mixt., and the prod. poured into closable moulds and cured. The density of the foam depends on the capacity of the mould and the degree of filling. Mouldings may be panel-shaped, blocks, shaped parts, etc., depending on the shape of the mould, and decorative parts can be made by lining the mould with suitable facing materials which adhere to the foam during cures.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT5458574A IT1024485B (en) | 1974-12-16 | 1974-12-16 | Rigid lightweight polyurethane foam panels - and mouldings with foamed polystyrene particles as filler |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT5458574A IT1024485B (en) | 1974-12-16 | 1974-12-16 | Rigid lightweight polyurethane foam panels - and mouldings with foamed polystyrene particles as filler |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1024485B true IT1024485B (en) | 1978-06-20 |
Family
ID=11287418
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT5458574A IT1024485B (en) | 1974-12-16 | 1974-12-16 | Rigid lightweight polyurethane foam panels - and mouldings with foamed polystyrene particles as filler |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1024485B (en) |
-
1974
- 1974-12-16 IT IT5458574A patent/IT1024485B/en active
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