Method for producing composite elements
AssigneeBASF SE
InventorsEdmund Stadler, Peter Reinerth, Armin Deininger, Armin Reindl
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Abstract
In a process for the production of composite elements which have the following layer structure: (i) from 2 to 20 mm of metal, plastic or wood, (ii) from 10 to 300 mm of plastic and (iii) from 2 to 20 mm of metal, plastic or wood, the starting materials for the production of (ii) are introduced in the liquid state in at least two steps into the space between (i) and (iii), the space to be filled in the last filling process having a volume of from 0.1 to 1.5 m3 and the height of the space to be filled being less than 25 mm.
Claims5
A process for the production of a composite element having a layer structure comprising:
- layer (i) which comprises from 2 to 20 mm of metal, plastic or wood,
- layer (ii) which comprises from 10 to 300 mm of plastic and
- layer (iii) which comprises from 2 to 20 mm of metal, plastic or wood;
- said process comprising:
- introducing one or more starting materials in a liquid state for the production of said layer (ii), in at least two filling steps, into a space between said layer (i) and said layer (iii),
- a space to be filled in the last filling step having a volume of from 0.1 to 1.5 m3,
- the height of said space to be filled in said last filling step being in a range of from 10 mm to less than 25 mm and
- said layer (i) and said layer (iii) being aligned horizontally and having a deviation of in each case less than 0.5° from a horizontal plane.
Dependencies are inferred from the claim text.