Patent ID: 7459115

Claim:
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 m 3 , 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.