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US 11,873,381 B2Granted
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.
Claims18
A curable resin composition for forming a pultruded article or a cure-in-place pipe, said curable resin composition comprised of:
- a). at least one curable resin;
- b). at least one room-temperature-stable organic peroxide, other than a perketal, which is liquid at 25° C.;
- c). at least one room-temperature-stable perketal which is liquid at 25° C.;
- d). at least one salt of at least one metal selected from the group consisting of Li, Al, Mg, Co, Fe, Cu, Zn, Ni, Mn, Cr, Sn, Au, Pd and Pt;
- e). at least one thiol-functionalized organic compound including at least one thiol-functionalized organic compound comprised of two or more thiol functional groups;
- and
- f). at least one free radical trap;
- wherein said curable resin composition remains substantially liquid at 25° C.
5 more elements
Dependencies are inferred from the claim text.