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
    • 2. 发明授权
    • Flame retardant polycarbonate-ABS polymer compositions
    • 阻燃聚碳酸酯-ABC聚合物组合物
    • US06414060B1
    • 2002-07-02
    • US09348880
    • 1999-07-07
    • John M. McEuenMark W. BeltzGovindarajulu Kumar
    • John M. McEuenMark W. BeltzGovindarajulu Kumar
    • C08K549
    • C08K5/5399C08L69/00
    • Thermoplastic polycarbonate-ABS resin is rendered flame retardant by blending with the resin an O,O-diaryl-N-arylphosphoramidate, an arylene-N,N′-bis(O,O-diarylphosphoramidate) in which the nitrogen atoms are in the 1,3 or 1,4 positions on an arylene ring, or an N,N′-piperazinediylbis(O,O-diarylphosphoramidate). These flame retardants are halogen-free. They provide molded objects having high heat distortion temperatures, and high softening temperatures. Flame retardants of these types have been found to be thermally stable at temperatures of at least 260° C., and they did not discolor the polymer composition during exposure to molding temperatures.
    • 热塑性聚碳酸酯-ABS树脂通过与树脂中的O,O-二芳基-N-芳基氨基磷酸酯,亚芳基-N,N'-双(O,O-二芳基磷酰胺)和其中氮原子在1 亚芳基环上的3或1,4位,或N,N'-哌嗪二基双(O,O-二芳基磷酰胺)。 这些阻燃剂是无卤素的。 它们提供具有高热变形温度和高软化温度的模制物体。 已经发现这些类型的阻燃剂在至少260℃的温度下是热稳定的,并且在暴露于模塑温度期间它们不会使聚合物组合物变色。
    • 3. 发明授权
    • Substituted benzophenone dicarboxylic acids
    • 取代的二苯甲酮二羧酸
    • US5073552A
    • 1991-12-17
    • US576849
    • 1990-09-04
    • Mark W. BeltzVenkataraman Ramachandran
    • Mark W. BeltzVenkataraman Ramachandran
    • C07C205/38C07C217/90
    • C07C217/90C07C205/38
    • Substituted benzophenones are disclosed having the following formula ##STR1## where R.sub.A and R.sub.B are each independently COOH, C.sub.1 to C.sub.12 linear or branched alkyl or taken together to form an anhydride ring, R is nitro or amino unsubstituted or substituted with at least one C.sub.1 to C.sub.6 linear or branched alkyl, phenyl or substituted phenyl, the substituents being one or more C.sub.1 to C.sub.6 linear or branched alkyl or C.sub.6 to C.sub.10 aryl, Y and Y' are the same or different and are a chemical bond ##STR2## and m is 0 or 1 with the proviso that both R.sub.A and R.sub.B can not be hydrogen.Processes to produce these benzophenones are also disclosed.
    • 公开了具有下列结构式的取代的二苯甲酮,其中RA和RB各自独立地为COOH,C1至C12直链或支链烷基或一起形成酸酐环,R为硝基或未取代的氨基或被至少一个C1至 C6直链或支链烷基,苯基或取代的苯基,取代基是一个或多个C 1至C 6直链或支链烷基或C 6至C 10芳基,Y和Y'相同或不同,并且是化学键。 )2,C(CF 3)2或Si(CH 3)2,m为0或1,条件是RA和RB都不能为氢。 还公开了制备这些二苯甲酮的方法。
    • 5. 发明授权
    • Production of tris(2,4,6-tribromophenoxy)-s-1,3,5-triazine
    • 三(2,4,6-三溴苯氧基)-s-1,3,5-三嗪的制备
    • US5965731A
    • 1999-10-12
    • US146155
    • 1998-09-03
    • Meng-Sheng AoBillie B. DadgarPhillip R. BeaverMark W. Beltz
    • Meng-Sheng AoBillie B. DadgarPhillip R. BeaverMark W. Beltz
    • C07D251/34C07D251/30
    • C07D251/34
    • In an aqueous reaction medium, phenol is brominated with bromine under conditions forming an aqueous hydrobromic acid phase and an organic phase consisting essentially of molten 2,4,6-tribromophenol. The aqueous hydrobromic acid phase and the molten 2,4,6-tribromophenol are separated from each other, and optionally the molten 2,4,6-tribromophenol is washed with an aqueous decolorizing solution. An alkali metal base and water are mixed with the 2,4,6-tribromophenol to form an alkali metal salt of tribromophenol. Then, in a mixture consisting essentially of water and at least one liquid ketone, cyanuric chloride is reacted with at least a portion of the alkali metal 2,4,6-tribromophenolate of such that tris(2,4,6-tribromophenoxy)-s-1,3,5-triazine is produced.
    • 在水性反应介质中,苯酚在形成氢溴酸水相的条件下由溴溴化,基本上由熔融的2,4,6-三溴苯酚组成的有机相进行溴化。 将氢溴酸水溶液相和熔融的2,4,6-三溴苯酚相互分离,任选地,用水性脱色溶液洗涤熔融的2,4,6-三溴苯酚。 将碱金属碱和水与2,4,6-三溴苯酚混合以形成三溴苯酚的碱金属盐。 然后,在基本上由水和至少一种液体酮组成的混合物中,使氰尿酰氯与至少一部分2,4,6-三溴苯酚酸碱金属反应,使得三(2,4,6-三溴苯氧基) - 制备s-1,3,5-三嗪。
    • 6. 发明授权
    • Polyimides with improved compression moldability
    • 具有改进的压模成型性的聚酰亚胺
    • US5212276A
    • 1993-05-18
    • US520472
    • 1990-05-08
    • Paul M. HergenrotherStephen J. HavensMark W. Beltz
    • Paul M. HergenrotherStephen J. HavensMark W. Beltz
    • C08G73/10C09J179/08
    • C08G73/1071C08G73/1014C09J179/08Y10T428/31721
    • The semicrystalline polyimide prepared by reaction of 3,3',4,4'-benzophenonetetracarboxylic dianhydride (BTDA) and 1,3-bis(4-aminophenoxy-4'-benzoyl)benzene (1,3-BABB) is modified so that it can be more readily processed to form adhesive bonds, moldings and composites. The stoichiometric ratio of the two monomers, BTDA and 1,3-BABB is controlled so that the intermediate polyamide acid is of a calculated molecular weight. A polyamide acid with excess anhydride groups is then reacted with the stoichiometrically required amount of monofunctional aromatic or aliphatic amine required for complete endcapping. A polyamide acid with excess amino groups is reacted with the stoichiometrically required amount of monofunctional aromatic anhydride required for complete endcapping. The stoichiometrically offset, endcapped polyimide is processed at lower temperatures and pressures than the unmodified high molecular weight polyimide with the same repeat unit, and exhibits an improved melt stability.
    • 通过3,3',4,4'-二苯甲酮四羧酸二酐(BTDA)和1,3-双(4-氨基苯氧基-4'-苯甲酰基)苯(1,3-BABB)的反应制备的半结晶聚酰亚胺被改性,使得 可以更容易地加工以形成粘合剂,模塑和复合材料。 控制两种单体BTDA和1,3-BABB的化学计量比,使得中间体聚酰胺酸具有计算的分子量。 然后将具有过量酸酐基团的聚酰胺酸与化学计量要求量的完全封端所需的单官能芳族或脂族胺反应。 具有过量氨基的聚酰胺酸与完全封端所需的化学计量要求量的单官能芳族酸酐反应。 化学计量偏移的封端聚酰亚胺在比具有相同重复单元的未改性高分子量聚酰亚胺更低的温度和压力下进行处理,并表现出改进的熔体稳定性。