Patent ID: 8709324

Claim:
A method for producing a flexible elastomeric polyurethane skin layer comprising the steps of: providing a polyurethane reaction mixture which is composed of components comprising at least an isocyanate component, isocyanate-reactive components and a catalyst component, the isocyanate component being composed of at least one isocyanate having at least two NCO-groups which are not directly attached to an aromatic group, and the catalyst component being substantially free of lead; spraying a layer of said polyurethane reaction mixture onto a mould surface; allowing the polyurethane reaction mixture to cure to produce the polyurethane skin layer; and removing the produced polyurethane skin layer from the mould surface, characterised in that the isocyanate-reactive components of said polyurethane reaction mixture comprise at least one flexibiliser which reduces the flexural modulus of the skin and which comprises at least one isocyanate-reactive group, and wherein said flexiblilizer is a monofunctional flexibiliser comprising only one isocyanate-reactive group.