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    • 48. 发明申请
    • Reactive carriers for polymer melt injection
    • 用于聚合物熔体注射的活性载体
    • US20050176881A1
    • 2005-08-11
    • US10773490
    • 2004-02-06
    • Jayendra BhedaBanks Moore
    • Jayendra BhedaBanks Moore
    • C08G63/91C08K5/00C08K5/15C08L37/00C08L51/06C08L73/02
    • C08G63/916C08G69/48C08J5/047C08K5/0008C08K5/15C08L67/00C08L67/02D04H1/425D04H1/4291D04H1/4334D04H1/435D04H1/4382Y10T428/237C08L77/00C08L2666/24
    • The present invention concerns a reactive carrier that forms no by-products during melt injection of polymer into articles such as sheets, films, fibers and containers. The reactive carrier is used to mix additives into the polymer resin. More particularly, the invention relates to the use of one or more cyclic anhydrides or substituted cyclic anhydrides as the reactive carrier. The polymer can be polyester or polyamide. Suitable cyclic anhydrides are those with a melt point of less than the polyester or polyamide, preferably less than about 160° C., and more preferably less than about 125° C. Most preferable are cyclic anhydrides with a melt point less than about 100° C. and especially suitable are those that are liquid at room temperature (25° C.). The cyclic anhydride may be selected from the group of succinic anhydride, substituted succinic anhydride, glutaric anhydride, substituted glutaric anhydride, phthalic anhydride, substituted phthalic anhydride, maleic anhydride, substituted maleic anhydride, or mixtures of two or more of these.
    • 本发明涉及在将聚合物熔融注射到诸如片材,薄膜,纤维和容器的制品中时不形成副产物的反应性载体。 反应性载体用于将添加剂混合到聚合物树脂中。 更具体地说,本发明涉及一种或多种环状酸酐或取代的环状酸酐作为反应性载体的用途。 聚合物可以是聚酯或聚酰胺。 合适的环状酸酐是熔点小于聚酯或聚酰胺的环状酸酐,优选小于约160℃,更优选小于约125℃。最优选的是具有小于约100°F的熔点的环状酸酐 特别适合在室温(25℃)下为液体的那些。 环状酸酐可以选自琥珀酸酐,取代的琥珀酸酐,戊二酸酐,取代的戊二酸酐,邻苯二甲酸酐,取代的邻苯二甲酸酐,马来酸酐,取代的马来酸酐,或它们中的两种或更多种的混合物。