Curable sealant compositions having low temperature sealing ability improved over convention curable sealing compositions. The composition is flowable and can be cured to a cross linked form to provide cured reaction products that exhibit elastomeric properties. The curable elastomeric sealant composition can include a cross linkable elastomeric oligomer; an initiator or cross-linking agent; a glassy monomer and/or a rubbery monomer; and optionally one or more additives. Cured reaction products of the composition have a single Tg and retain a higher sealing force at low temperatures (but above the cured product Tg) as compared to a curable composition made from the same cross linkable elastomeric oligomer but without the glassy and/or rubbery monomer.
与传统的可固化密封组合物相比,可固化密封组合物具有更好的低温密封能力。该组合物具有流动性,可固化成交联形式,提供具有弹性体特性的固化反应产物。可固化弹性密封剂组合物可包括可交联弹性低聚物;
引发剂或
交联剂;
玻璃状单体和/或橡胶状单体;以及可选的一种或多种添加剂。与由相同的可交联弹性体低聚物但不含
玻璃状单体和/或橡胶状单体制成的固化组合物相比,该组合物的固化反应产物具有单一的 Tg,并在低温下(但高于固化产物 Tg)保持较高的密封力。