Radical-curing metal salt-free, thickening moulding materials - contain unsatd. resins with isocyanate Gps., aliphatic di- or poly-amine thickeners

摘要

Radical-cured moulding materials (I) contain (A) unsatd. resins with terminal (meth)acrylic and/or allyl gps. and reactive aromatic or aliphatic NCO gps. on non-prim. C atoms. obtd. from polyhydroxy cpds., (meth)acrylic acid and/or allyl alcohol, and aromatic or aliphatic di-isocyanates with at least one non-prim. NCO gp. (II), (B) aliphatic di- or polyamines with at least one amino gp. on a non-prim. C atom and (C) vinyl comonomers. USE/ADVANTAGE - (I) are useful for the prodn. of moulded prods. The invention provides a stable, self-thickening thermosetting resin system with sufficiently high viscosity for transfer moulding., compression injection moulding, etc. without the addn. of undesirably large amts. of filler, etc.