| 摘要 |
A crosslinkable moulding composition comprises: (1) a functionalised isocyanate product having at least six ethylenically unsaturated groups which is the reaction product of (i) an isocyanate component having an isocyanate functionality of two or more, and (ii) an ethylenically unsaturated component having at least one functional group that is reactive with an isocyanate group of the isocyanate component and at least two ethylenically unsaturated groups; and (2) a monomer component comprising a cross-linking monomer having at least two ethylenically unsaturated groups, wherein at least one of an ethylenically unsaturated component (ii) and/or a monomer component (2) are selected to have at least three ethylenically unsaturated groups. The moulding compositions are especially suitable for reinforcement and thermal curing. Example crosslinked resins derived from such moulding compositions are shown to be capable of achieving high heat deflection temperatures, often in excess of 260° C. |
