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    • 71. 发明申请
    • Polyester coetherified melamine formaldehyde copolymers
    • 聚酯共聚三聚氰胺甲醛共聚物
    • US20030138650A1
    • 2003-07-24
    • US10267061
    • 2002-10-08
    • OMNOVA Solutions Inc.
    • Martin FayGuillermina C. GarciaRaymond J. WeinertJames E. Robbins
    • C08F020/00
    • C08J3/244C08G18/10C08G18/5015C08G63/682C08G63/6824C08G65/18C08G65/226C08J7/047C08J2367/00C08J2467/00C08L61/20C08L67/00C09D167/00Y10T428/31786Y10T428/31794C08L2666/16C08G18/46C08L2666/14
    • In a first embodiment a polyoxetane-polyester polymer comprising a hydroxyl terminated polyoxetane prepolymer containing repeat units derived from polymerized oxetane monomers having one or two pendant nullCH2nullOnull (CH2)n-Rf groups wherein Rf is partially or fully fluorinated, where the polyoxetane prepolymer is esterified with polyester forming reactants to form the polyoxetane-polyester polymer, and said polymer is mixed with a reactive lower alkyl etherified melamine formaldehyde to form a thermoformable coating composition. In a second embodiment, the coating composition is based on a polyester mixed with the lower alkyl etherified melamine formaldehyde and is substantially free of the polyoxetane. The coating composition is partially cured in a first stage heating at less than about 180null F. to provide a thermoformable partially cured, tack-free, non-blocking, coating layer, followed by application to generally a contoured substrate and thermoformed to conform thereto. The contoured partially cured coating layer is then heat cured at temperatures above at least 180null F. for time sufficient to form a cured coating.
    • 在第一个实施方案中,聚氧乙烯 - 聚酯聚合物包含羟基封端的聚氧杂环丁烷预聚物,其包含衍生自具有一个或两个侧链-CH 2 -O-(CH 2)n -R f基团的聚合氧杂环丁烷单体的重复单元,其中Rf部分或完全氟化,其中 聚氧乙烯预聚物与形成聚酯的反应物酯化以形成聚氧杂环丁烷 - 聚酯聚合物,所述聚合物与反应性低级烷基醚化三聚氰胺甲醛混合以形成可热成型涂料组合物。 在第二实施方案中,涂料组合物基于与低级烷基醚化三聚氰胺甲醛混合的聚酯,并且基本上不含聚氧乙烯。 涂料组合物在小于约180°F的第一阶段加热中部分固化,以提供可热成型的部分固化,无粘性,非阻塞涂层,然后施用于通常为成型基材并热成型以符合其 。 然后将轮廓部分固化的涂层在高于至少180°F的温度下加热固化,足以形成固化涂层。
    • 80. 发明授权
    • Method of manufacturing polyester granules with improved photochemical and thermal stability, and its application
    • 具有改善光化学和热稳定性的聚酯颗粒的制备方法及其应用
    • US06274659B1
    • 2001-08-14
    • US09091378
    • 1998-06-17
    • Josiane EnggasserWerner Vogt
    • Josiane EnggasserWerner Vogt
    • C08J510
    • C08J5/10C08J3/203C08J3/226C08J2367/02C08J2467/00
    • The process for production of a heat-stable and light-fast product consisting of multifilaments, monofilaments or flock for textile and industrial applications includes mixing from 0.2 to 0.5% by weight, based on the amount of product, of a UV absorber having a melting point of from 135 to 145° C. and a colorant having a melting point greater than 180° C. with a polyester powder at room temperature to form a starting mixture; feeding from 1 to 100% of the starting mixture and from 0 to 99% by weight PET granules into a cooled feed zone of a twin-screw extruder; operating the twin-screw extruder to melt, knead and homogenize the feed to form polymer strands, which are then cooled and cut to form a compound; and subsequently melt-spinning the compound to form the product. When the product is made by this method the UV absorber is incorporated in the product, thus avoiding the additive-related manufacturing problems.
    • 由用于纺织品和工业应用的复丝,单丝或羊群组成的热稳定且耐光快的产品的生产方法包括将基于产品量的0.2至0.5重量%的具有熔化的UV吸收剂 点为135〜145℃,熔点大于180℃的着色剂与室温下的聚酯粉末形成起始混合物; 将1至100%的起始混合物和0至99重量%的PET颗粒进料到双螺杆挤出机的冷却进料区; 操作双螺杆挤出机以熔融,捏合和均化进料以形成聚合物链,然后冷却和切割以形成化合物; 然后将化合物熔融纺丝以形成产物。 当通过该方法制造产品时,将UV吸收剂并入产品中,从而避免与添加剂相关的制造问题。