会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 43. 发明申请
    • Liquid crystalline thermosets from ester, ester-imide, and ester-amide oligomers
    • 来自酯,酯 - 酰亚胺和酯 - 酰胺低聚物的液晶热固性材料
    • US20050209429A1
    • 2005-09-22
    • US11124508
    • 2005-04-29
    • Theodorus DingemansErik WeiserTerry St. Clair
    • Theodorus DingemansErik WeiserTerry St. Clair
    • C08L101/12C08G63/60C08G63/685C08G69/44C08G73/16C09K19/38C08G18/10
    • C09K19/3823C08G63/60C08G63/6854C08G69/44C08G73/16C09K19/3804
    • Main chain thermotropic liquid crystal esters, ester-imides, and ester-amides were prepared from AA, BB, and AB type monomeric materials and end-capped with phenylacetylene, phenylmaleimide, or nadimide reactive end-groups. The end-capped liquid crystal oligomers are thermotropic and have, preferably, molecular weights in the range of approximately 1000-15,000 grams per mole. The end-capped liquid crystal oligomers have broad liquid crystalline melting ranges and exhibit high melt stability and very low melt viscosities at accessible temperatures. The end-capped liquid crystal oligomers are stable for up to an hour in the melt phase. They are highly processable by a variety of melt process shape forming and blending techniques. Once processed and shaped, the end-capped liquid crystal oligomers were heated to further polymerize and form liquid crystalline thermosets (LCT). The fully cured products are rubbers above their glass transition temperatures.
    • 主链热致液晶酯,酯 - 酰亚胺和酯 - 酰胺由AA,BB和AB型单体材料制成,并用苯乙炔,苯基马来酰亚胺或纳二酰胺反应性端基封端。 封端的液晶低聚物是热致变性的,并且优选分子量在约1000-15,000克/摩尔的范围内。 封端的液晶低聚物具有宽的液晶熔融范围,并且在可接近的温度下表现出高的熔体稳定性和非常低的熔体粘度。 封端的液晶低聚物在熔融相中稳定长达一个小时。 它们通过各种熔体加工形状和混合技术可高度加工。 一旦加工和成形,加热封端的液晶低聚物进一步聚合并形成液晶热固性塑料(LCT)。 完全固化的产品是高于其玻璃化转变温度的橡胶。
    • 49. 发明授权
    • Wholly aromatic mesomorphic polyester imides, the preparation and use
thereof
    • 全芳族介晶聚酰亚胺,其制备及应用
    • US4728714A
    • 1988-03-01
    • US937719
    • 1986-12-04
    • Bernd HisgenHans-Jakob Kock
    • Bernd HisgenHans-Jakob Kock
    • C08G63/68C08G63/685C08G73/16C09K19/38C08G63/54C08G69/44
    • C09K19/3823C08G73/16
    • Wholly aromatic mesomorphic polyester imides which form a liquid-crystalline fiber-forming melt below 320.degree. C. and are composed of(a) from 5 to 35 mol % of repeat units of the formulae I and/or II ##STR1## where x can be identical or different and each is --O--, --S--, --SO.sub.2 --, --CO--, --CH.sub.2 -- or .dbd.C(CH.sub.3).sub.2, and n is 1 or 2,(b) from 0 to 30 mol % of repeat units of the formulae III and/or IV ##STR2## (c) a molar amount corresponding to the total amount of components (a) and (b) of repeat units(c1) from 3 to 35 mol % of units of the formula V ##STR3## and one or more of the repeat units. 2 (c2) from 2 to 25 mol % of units of the formula VI ##STR4## (c3) from 0 to 25 mol % of units of the formula VII ##STR5## (c4) from 2 to 25 mol % of units of the formula VIII ##STR6## the total of the molar proportions of components (c1), (c2), (c3) and (c4) corresponding in each case to the total in mol % of components (a) and (b),(d) if desired from 5 to 25 mol % of repeat units of the formula IX ##STR7## (e) repeat units of the formula X ##STR8## the molar proportions of (a), (b), (c), (d) and (e) in each case adding up to 100 mol %, the preparation thereof and fibers, films and molding prepared therefrom.
    • 全芳族介晶聚酯酰亚胺,其在320℃以下形成液晶纤维形成的熔体,并由(a)5-35摩尔%的式I和/或II的重复单元组成。 其中x可以相同或不同,并且各自为-O - , - S - , - SO 2 - , - CO - , - CH 2 - 或= C(CH 3)2,n为1或2,(b) 0至30摩尔%的式III和/或IV的重复单元(c)摩尔量对应于3至35摩尔的重复单元(c1)的组分(a)和(b)的总量 百分比公式V 的单位和一个或多个重复单位。 + PG 2(c2)2至25摩尔%的式VI的单元(c3)0至25摩尔%的式VII的单元(c4)2至25摩尔%的单元 式(Ⅷ),(c2),(c3)和(c4)在各种情况下相对于组分(a)和(b)的总摩尔%的总摩尔比例, (d)如果需要,5至25摩尔%的式IX的重复单元(e)重复式(a),(b),(c),(c)的摩尔比例 d)和(e)在每种情况下加入高达100mol%,其制备物和纤维,膜和由其制备的模塑。