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    • 16. 发明授权
    • Polyester of para-hydroxy benzoic acid, 1,2-bis(para-carboxy
phenoxy)ethane, terephthalic acid and hydroquinone capable of forming
an anisotropic melt which readily undergoes melt processing
    • 对羟基苯甲酸,1,2-双(对羧基苯氧基)乙烷,对​​苯二甲酸和氢醌的聚酯,能够形成易于熔融加工的各向异性熔体
    • US4238598A
    • 1980-12-09
    • US10393
    • 1979-02-08
    • Nicolai A. Favstritsky
    • Nicolai A. Favstritsky
    • C08G63/00C08G63/64C08G63/66C08G63/60
    • C08G63/66
    • A novel polyester is provided which has been found to exhibit an anisotropic melt phase at a temperature which enables it readily to undergo melt processing to form quality fibers, molded articles, etc. The polyester of the present invention is different in character than polyesters of the prior art and includes as essential ingredients moieties derived from para-hydroxy benzoic acid, 1,2-bis(para-carboxy phenoxy)ethane, terephthalic acid, and unsubstituted hydroquinone in the proportions indicated. The polyester of the present invention can be produced on a relatively economical basis and has been found capable of yielding an anisotropic melt of relatively low viscosity at a desirable temperature for melt processing. In a preferred embodiment the polyester is capable of undergoing melt processing at a temperature below approximately 300.degree. C., and in a particularly preferred embodiment at a temperature below approximately 290.degree. C. (e.g., with standard equipment commonly used to melt process polyethylene terephthalate). Fibers conveniently can be melt spun from the polyester of the present invention which exhibit tenacity values which are enhanced to a surprisingly great extent upon thermal treatment.
    • 已经发现一种新颖的聚酯已被发现在使其容易进行熔融加工以形成优质纤维,模塑制品等的温度下呈现各向异性的熔融相。本发明的聚酯的特性与 现有技术并且包括作为必要成分的部分,其衍生自对羟基苯甲酸,1,2-双(对羧基苯氧基)乙烷,对​​苯二甲酸和未被取代的对苯二酚。 本发明的聚酯可以在相对经济的基础上生产,并且已经发现能够在所需温度下产生熔体加工时具有相对低粘度的各向异性熔体。 在优选的实施方案中,聚酯能够在低于约300℃的温度下进行熔体加工,并且在特别优选的实施方案中在低于约290℃的温度下进行熔融加工(例如,使用通常用于熔融加工聚对苯二甲酸乙二醇酯的标准设备 )。 纤维可以方便地从本发明的聚酯中熔融纺丝,其显示出强度值,其在热处理时增强到惊人的程度。
    • 20. 发明授权
    • Flame retardant brominated styrene-based coatings
    • 阻燃溴化苯乙烯基涂料
    • US5290636A
    • 1994-03-01
    • US875359
    • 1992-04-29
    • Richard S. RoseJin-liang WangNicolai A. FavstritskyDavid E. MayDavid J. Honkomp
    • Richard S. RoseJin-liang WangNicolai A. FavstritskyDavid E. MayDavid J. Honkomp
    • C08F12/16C08F12/00C08F20/18C08F220/10C08L33/00C08L33/04C09D125/00C09D125/02C09D125/18C09D133/00C09D133/04C09D133/06B32B27/32
    • C09D133/062C09D125/02C09D125/18Y10S428/92Y10S428/921Y10T428/31797Y10T428/31928Y10T428/31931Y10T428/31935Y10T442/2713
    • Improved flame retardant latex coatings are disclosed which comprise copolymers of ring-halogenated aromatic monomer units and alkyl acrylate/methacrylate monomer units, and which may additionally include at least one other monomer. In a first embodiment, the coatings include ring-brominated aromatic monomer units and alkyl acrylate and/or alkyl methacrylate monomer units. In a second embodiment, the coatings include these first two types of monomer units and further include third monomer units from unsaturated esters of saturated carboxylic acids, halogen-free aromatic monomers or unsaturated carboxylic or dicarboxylic acid monomers. In a third embodiment, the coatings include four monomer units, namely ring-brominated aromatic monomer units, alkyl acrylate/methacrylate monomer units, halogen-free aromatic monomer units and unsaturated carboxylic or dicarboxylic acid monomer units. In one aspect, the halogenated aromatic monomers are present in an amount to provide from 7 to 20 weight percent bromine in the final latex coating. In another aspect, the halogenated aromatic monomers include polybrominated monomers, particularly to provide monomers having an average of at least about 1.5 bromines per monomer unit. The coating polymers have glass transition temperatures in the -30.degree. C. to 30.degree. C. range and are useful, for example, for coating, paint, adhesive, sealant and non-woven binder applications.
    • 公开了改进的阻燃胶乳涂层,其包含环 - 卤代芳族单体单元和丙烯酸烷基酯/甲基丙烯酸烷基酯单体单元的共聚物,并且其可另外包含至少一种其它单体。 在第一个实施方案中,涂层包括环溴化芳族单体单元和丙烯酸烷基酯和/或甲基丙烯酸烷基酯单体单元。 在第二实施方案中,涂层包括这些前两种类型的单体单元,并且还包括来自饱和羧酸的不饱和酯,无卤素芳族单体或不饱和羧酸或二羧酸单体的第三单体单元。 在第三实施方案中,涂层包括四个单体单元,即环溴化芳族单体单元,丙烯酸烷基酯/甲基丙烯酸酯单体单元,无卤素芳族单体单元和不饱和羧酸或二羧酸单体单元。 在一个方面,卤代芳族单体的存在量为最终胶乳涂料中的7至20重量%的溴。 另一方面,卤代芳族单体包括多溴单体,特别是提供每单体单元平均具有至少约1.5个溴的单体。 涂层聚合物的玻璃化转变温度在-30摄氏度到30摄氏度的范围内,并且可用于例如涂料,油漆,粘合剂,密封剂和无纺粘合剂应用。