Accelerated peroxide-cured resin compositions having extended open times
AssigneeArkema Inc.
InventorEvan Crocker
Life of this patent
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Abstract
Curable resin compositions having extended open times at ambient temperatures and short cure times at elevated temperatures are prepared using a curable resin, a combination of room-temperature-stable liquid peroxides (including at least one perketal), a promoter salt, a thiol-functionalized organic accelerator and a free radical trap. The curable resin compositions are useful in pultrusion, cure-in-place pipe and resin transfer molding applications, among others.
Claims24
A system for curing a curable resin, wherein the system comprises a first component and a second component and wherein the first component comprises at least one room-temperature-stable organic peroxide, other than a perketal, which is liquid at 25° C.;
- and at least one room-temperature-stable perketal which is liquid at 25° C. and the second component comprises at least one salt of at least one metal selected from the group consisting of Li, Al, Mg, Co, Ni, Cr, Sn, Au, Pd and Pt and at least one thiol-functionalized organic compound, wherein at least one free radical trap is present in at least one of the first component or the second component.
A system for curing a curable resin, wherein the system comprises a first component and a second component and wherein the first component comprises at least one room-temperature-stable organic peroxide, other than a perketal, which is liquid at 25° C.;
- and at least one room-temperature-stable perketal which is liquid at 25° C. and the second component comprises at least one zinc halide and at least one thiol-functionalized organic compound, wherein at least one free radical trap is present in at least one of the first component or the second component.
Dependencies are inferred from the claim text.