초록 ▼

A process for producing reinforced laminates from crosslinkable thermoplastic olefin polymer material. In the process, a normally solid, high molecular weight crosslinkable thermoplastic olefin polymer containing a catalyst which reacts with and effects crosslinking of the polymer and which has a de

A process for producing reinforced laminates from crosslinkable thermoplastic olefin polymer material. In the process, a normally solid, high molecular weight crosslinkable thermoplastic olefin polymer containing a catalyst which reacts with and effects crosslinking of the polymer and which has a decomposition temperature above the melting temperature of the polymer, is heated to a molten state at a temperature above the polymer melting temperature but below the catalyst decomposition temperature. A continuous nonreinforced sheet is then formed from the molten polymer at a temperature below the decomposition temperature and is applied to at least one surface of a substrate to form a laminate. The laminate is then heated under pressure to a temperature above the decomposition temperature of the catalyst to effect substantially complete crosslinking of the polymer and is cooled to a temperature below the polymer melting temperature to a self-supporting state to fix the shape of the laminate.

대표청구항 ▼

A process of producing reinforced laminates from crosslinkable thermoplastic olefin polymer material, comprising the steps of heating a normally solid, high molecular weight crosslinkable thermoplastic olefin polymer selected from the group consisting of ethylene homopolymers, copolymers of ethylene

A process of producing reinforced laminates from crosslinkable thermoplastic olefin polymer material, comprising the steps of heating a normally solid, high molecular weight crosslinkable thermoplastic olefin polymer selected from the group consisting of ethylene homopolymers, copolymers of ethylene and at least one acyclic mono-1 olefin hydrocarbon having 2 to 8 carbon atoms per molecule, and mixtures thereof, having a melt index of at least about 10, and a density in the range of 0.910 to 0.970 and containing an acetylenic diperoxy catalyst which reacts with and effects crosslinking of said polymer and which has a decomposition temperature between about 310°F. and about 525°F., to a molten state at a melting temperature between about 270°F. and 300°F., forming a continuous non-reinforced sheet from said molten polymer at a temperature below said decomposition temperature, cooling said continuous sheet to a temperature below said melting temperature to a self-supporting, two-dimensional molecular state, combining said sheet in said self-supporting state with a glass fibrous substrate treated with an unsaturated organosilanol coupling agent which reacts with said polymer and said glass fibrous substrate and effects bonding of said polymer to said substrate to form a laminate, heating said laminate under pressure to a temperature between about 310°F. and about 525°F. to react said catalyst with said polymer and effect at least 80% crosslinking of said polymer to a three-dimensional molecular state, and cooling said laminate to a temperature below said melting temperature to a self-supporting state.