Melt processable poly(ester amide) capable of forming an anisotropic
melt containing an aromatic moiety capable of forming an amide linkage
    3.
    发明授权
    Melt processable poly(ester amide) capable of forming an anisotropic melt containing an aromatic moiety capable of forming an amide linkage 失效
    能够形成含能够形成酰胺键的芳族部分的各向异性熔体的可熔融加工的聚(酯酰胺)

    公开(公告)号:US5508374A

    公开(公告)日:1996-04-16

    申请号:US487663

    申请日:1995-07-07

    IPC分类号: C08G69/44 D01F6/82 C08G63/02

    CPC分类号: C08G69/44

    摘要: A melt processable poly(ester-amide) which is capable of forming an anisotropic melt phase is provided. A poly(ester-amide) of the present invention may have recurring units of: (a) 4-hydroxybenzoyl moiety, (b) 6-oxy-2-naphthoyl moiety, (c) 4,4'-biphenol moiety, (d) terephthaloyl moiety, and (e) an aromatic moiety capable of forming an amide linkage in the proportions indicated. Preferably, the moiety capable of forming an amide linkage is derived from p-aminophenol, p-phenylenediamine, N-acetyl-p-aminophenol, etc. The resulting poly(ester-amide) is capable of undergoing melt-processing in the temperature range of from about 300.degree. to about 400.degree. C.

    摘要翻译: 提供能够形成各向异性熔融相的可熔融加工的聚(酯 - 酰胺)。 本发明的聚(酯 - 酰胺)可以具有重复单元:(a)4-羟基苯甲酰部分,(b)6-氧-2-萘甲酰基部分,(c)4,4'-联苯酚部分,(d )对苯二酰部分,和(e)能够以所示比例形成酰胺键的芳族部分。 优选地,能够形成酰胺键的部分衍生自对氨基苯酚,对苯二胺,N-乙酰基对氨基苯酚等。所得聚(酯 - 酰胺)能够在温度范围内进行熔融加工 为约300℃至约400℃

    Melt processable poly(ester-amide) capable of forming an anisotropic
melt containing an aromatic moiety capable of forming and amide linkage
    4.
    发明授权
    Melt processable poly(ester-amide) capable of forming an anisotropic melt containing an aromatic moiety capable of forming and amide linkage 失效
    能够形成含能够形成芳族部分和酰胺键的各向异性熔体的可熔融加工的聚(酯 - 酰胺)

    公开(公告)号:US5919889A

    公开(公告)日:1999-07-06

    申请号:US996423

    申请日:1992-12-23

    CPC分类号: C08G69/44

    摘要: A melt processable poly(ester-amide) which is capable of forming an anisotropic melt phase is provided. A poly(ester-amide) of the present invention may have recurring units of: (a) 4-hydroxybenzoyl moiety, (b) 6-oxy-2-naphthoyl moiety, (c) 4,4'-biphenol moiety, (d) terephthaloyl moiety, and (e) an aromatic moiety capable of forming an amide linkage in the proportions indicated. Preferably, the moiety capable of forming an amide linkage is derived from p-aminophenol, p-phenylenediamine, N-acetyl-p-aminophenol, etc. The resulting poly(ester-amide) is capable of undergoing melt-processing in the temperature range of from about 300.degree. to about 400.degree. C.

    摘要翻译: 提供能够形成各向异性熔融相的可熔融加工的聚(酯 - 酰胺)。 本发明的聚(酯 - 酰胺)可以具有重复单元:(a)4-羟基苯甲酰部分,(b)6-氧-2-萘甲酰基部分,(c)4,4'-联苯酚部分,(d )对苯二酰部分,和(e)能够以所示比例形成酰胺键的芳族部分。 优选地,能够形成酰胺键的部分衍生自对氨基苯酚,对苯二胺,N-乙酰基对氨基苯酚等。所得聚(酯 - 酰胺)能够在温度范围内进行熔融加工 为约300℃至约400℃

    Melt processable poly(ester-amide) capable of forming an anisotropic
melt containing an aromatic moiety capable of forming an amide linkage
    5.
    发明授权
    Melt processable poly(ester-amide) capable of forming an anisotropic melt containing an aromatic moiety capable of forming an amide linkage 失效
    可形成含有可形成氨基酸连接的芳香族环境的各向异性熔体的可熔融处理聚酯(酯 - 酰胺)

    公开(公告)号:US5204443A

    公开(公告)日:1993-04-20

    申请号:US687801

    申请日:1991-04-19

    IPC分类号: C08G69/44 D01F6/82

    CPC分类号: C08G69/44

    摘要: A melt processable poly(ester-amide) which is capable of forming an anisotropic melt phase is provided. A poly(ester-amide) of the present invention may have recurring units of: (a) 4-hydroxybenzoyl moiety, (b) 6-oxy-2-naphthoyl moiety, (c) 4,4'-biphenol moiety, (d) terephthaloyl moiety, and (e) an aromatic moiety capable of forming an amide linkage in the proportions indicated. Preferably, the moiety capable of forming an amide linkage is derived from p-aminophenol, p-phenylenediamine, N-acetyl-p-aminophenol, etc. The resulting poly(ester-amide) is capable of undergoing melt-processing in the temperature range of from about 300.degree. to about 400.degree. C.

    Process for producing polyarylate having low color
    6.
    发明授权
    Process for producing polyarylate having low color 失效
    具有低颜色的多芳基化合物的制备方法

    公开(公告)号:US5164478A

    公开(公告)日:1992-11-17

    申请号:US744604

    申请日:1991-08-13

    IPC分类号: C08G63/195 C08G63/80

    CPC分类号: C08G63/80 C08G63/195

    摘要: A process for preparing polyarylates having low color wherein isophthalic acid, terephthalic acid, and bisphenol A are melt polymerized to form a prepolymer, the prepolymer is crystallized, and then further polymerized in the solid state by heating under an inert gas flow, e.g. nitrogen. Crystallization is accomplished by adding the amorphous prepolymer in powder or pellet form to a organic crystallizing medium such as 2-ethoxyethyl acetate or hexyl acetate. This process produces a polymer having low color content. The crystallized polymer may be made amorphous by melting. This amorphous polymer is useful in applications requiring a transparent, colorless plastic.

    摘要翻译: 制备具有低色度的多芳基化合物的方法,其中间苯二甲酸,对苯二甲酸和双酚A熔融聚合以形成预聚物,预聚物结晶,然后通过在惰性气体流下,例如, 氮。 通过将粉末或颗粒形式的无定形预聚物加入到有机结晶介质如乙酸2-乙氧基乙酯或乙酸己酯中来实现结晶。 该方法产生具有低颜色含量的聚合物。 结晶的聚合物可以通过熔化而制成无定形的。 该无定形聚合物可用于需要透明无色塑料的应用中。