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    • 56. 发明授权
    • Transparent polyimide-polyester compositions, method of manufacture, and articles thereof
    • 透明聚酰亚胺 - 聚酯组合物,制造方法及其制品
    • US08546516B2
    • 2013-10-01
    • US12815754
    • 2010-06-15
    • Robert R. GallucciMark A. Sanner
    • Robert R. GallucciMark A. Sanner
    • C08G63/127
    • C08L67/02C08G73/1046C08G73/1053C08G73/1067C08G73/1071C08K5/005C08K5/0066C08L79/08C08L2666/20
    • A thermoplastic polymer composition comprises a combination of: 40 to 60 pbw, of a polyetherimides, polyetherimide sulfones, or combination thereof having a weight average molecular weight from 5,000 to 80,000 Daltons; 40 to 60 pbw of a polyethylene terephthalate, the polyethylene terephthalate having a diethylene glycol content from 0.1 to 4 wt %, based on the weight of the polyethylene terephthalate, an intrinsic viscosity that is more than 0 and less than 0.83 dl/g, and carboxylic acid end groups in an amount from 10 to 150 meq/Kg; from 0 pbw to 1 pbw, based on 100 pbw of the polymer composition of a stabilizer selected from phenol-containing stabilizers, phosphorus-containing stabilizers, or a combination thereof; and, based on the weight of the polyethylene terephthalate, 10 to 300 antimony; 0 to 300 ppm of cobalt; and 0 to 300 ppm of titanium; wherein the polymer composition is bisphenol A free.
    • 热塑性聚合物组合物包含以下组合:40至60pbw的重均分子量为5,000至80,000道尔顿的聚醚酰亚胺,聚醚酰亚胺砜或其组合; 40〜60pbw的聚对苯二甲酸乙二醇酯,基于聚对苯二甲酸乙二醇酯的重量,二甘醇含量为0.1〜4重量%的聚对苯二甲酸乙二醇酯,特性粘度大于0且小于0.83dl / g,以及 羧酸端基的量为10至150meq / Kg; 从0pbw至1pbw,基于100pbw的聚合物组合物选自含苯酚的稳定剂,含磷稳定剂或其组合的稳定剂; 并且基于聚对苯二甲酸乙二醇酯的重量为10〜300个锑; 0〜300ppm的钴; 和0〜300ppm的钛; 其中聚合物组合物是双酚A游离的。
    • 59. 发明授权
    • Steam purification of polyimide resins
    • 聚酰亚胺树脂的蒸汽净化
    • US08357773B1
    • 2013-01-22
    • US13286161
    • 2011-10-31
    • Robert R. GallucciRobert HossanDaniel F. Lowery
    • Robert R. GallucciRobert HossanDaniel F. Lowery
    • C08G64/00C08G63/02
    • C08G73/1046C08G73/1003C08G73/1064
    • The disclosure relates to a steam stripping process for producing purified polyimides, e.g., polyetherimide homopolymers and polyetherimide copolymers. The process can include contacting an initial polyimide with steam to remove a volatile species from the initial polyimide to produce a purified polyimide. The purified polyimide can have a weight average molecular weight of from 5,000 to 80,000 Daltons. The weight average molecular weight of the purified polyimide can be greater than or equal to 90% of the weight average molecular weight of the initial polyimide. The purified polyimide can have less than 44 ppm of a volatile species, having a molecular weight of less than 250 Daltons. The polyimide can have less than 10 ppm of a metal cation.
    • 本公开涉及用于生产纯化的聚酰亚胺的蒸汽汽提方法,例如聚醚酰亚胺均聚物和聚醚酰亚胺共聚物。 该方法可以包括使初始聚酰亚胺与蒸汽接触以从初始聚酰亚胺中除去挥发性物质以产生纯化的聚酰亚胺。 纯化的聚酰亚胺可以具有5,000至80,000道尔顿的重均分子量。 纯化的聚酰亚胺的重均分子量可以大于或等于初始聚酰亚胺的重均分子量的90%。 纯化的聚酰亚胺可以具有小于44ppm的分子量小于250道尔顿的挥发性物质。 聚酰亚胺可以具有小于10ppm的金属阳离子。