摘要:
The invention provides composite components constructed of a layer i) comprising short fiber reinforced PU and having a paintable surface, and a layer ii) comprising long fiber reinforced polyurethane, and also provides a process for producing them, and provides for their use as exterior bodywork parts.
摘要:
The present invention relates to the use of a polyurethane system, comprising (a) polyisocyanates, (b) at least one compound reactive with isocyanate, (c) at least one reactive chain extender having at least two groups reactive toward isocyanates, where at least one group reactive toward isocyanates is a free, primary NH2 group, (d) at least one catalyst, and (e) if appropriate, further additives, for production of polyurethane sandwich components. The present invention further relates to a process for production of polyurethane sandwich components, and to polyurethane sandwich components obtainable by this process.
摘要:
The present invention relates to the use of a polyurethane system, comprising (a) polyisocyanates, (b) at least one isocyanate-reactive compound, (c) at least one carboxylic salt of an amine catalyst, where, based on one equivalent of the amine of the amino catalyst, from 0.5 to 1.5 equivalents of acid groups of a carboxylic acid are comprised, (d) if appropriate, further catalysts, (e) if appropriate, a reactive chain extender having at least two groups reactive toward isocyanates, where at least one group reactive toward isocyanates is a free, primary, NH2 group, and (f) if appropriate, further additives, for the production of polyurethane sandwich components. The present invention further relates to a process for the production of polyurethane sandwich components, and also to the polyurethane sandwich components obtained by the process of the invention.
摘要:
The present invention relates to the use of a polyurethane system, comprising (a) polyisocyanates, (b) at least one isocyanate-reactive compound, (c) at least one carboxylic salt of an amine catalyst, where, based on one equivalent of the amine of the amino catalyst, from 0.5 to 1.5 equivalents of acid groups of a carboxylic acid are comprised, (d) if appropriate, further catalysts, (e) if appropriate, a reactive chain extender having at least two groups reactive toward isocyanates, where at least one group reactive toward isocyanates is a free, primary, NH2 group, and (f) if appropriate, further additives, for the production of polyurethane sandwich components. The present invention further relates to a process for the production of polyurethane sandwich components, and also to the polyurethane sandwich components obtained by the process of the invention.
摘要:
The present invention relates to the use of a polyurethane system, comprising (a) polyisocyanates, (b) at least one compound reactive with isocyanate, (c) at least one reactive chain extender having at least two groups reactive toward isocyanates, where at least one group reactive toward isocyanates is a free, primary NH2 group, (d) at least one catalyst, and (e) if appropriate, further additives, for production of polyurethane sandwich components. The present invention further relates to a process for production of polyurethane sandwich components, and to polyurethane sandwich components obtainable by this process.