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
    • 22. 发明申请
    • PHENOL-NOVOLACS WITH IMPROVED OPTICAL PROPERTIES
    • 具有改进的光学性质的酚醛树脂
    • WO00017243A1
    • 2000-03-30
    • PCT/US1999/004799
    • 1999-03-05
    • C08G8/00C08G8/04C08G14/04C08G14/12C08G59/08C08G59/62C08L61/06C08L61/10C08L61/14C08L63/00H05K1/02H05K1/03H05K3/28C08F6/10C08F8/00C08G6/00C08G8/06C08G8/12
    • C08L61/06C08G8/04C08G14/04C08G14/12C08G59/08C08L61/14C08L63/00H05K1/0266H05K1/0269H05K1/0326H05K1/0373H05K3/285C08L2666/22C08L61/04
    • The specification discloses a method for the manufacture of a fluorescent polyphenolic product with high UV absorbance, its subsequent epoxidation as well as polyphenolic products and epoxidized derivatives and compositions thereof. The polyphenolic products are prepared by heating glyoxal at a temperature of about 80 DEG C to about 100 DEG C with a molar excess of a phenol in the presence of an acidic catalyst which is eliminated from the reaction mixture at a temperature about 170 DEG C. The total mole ratio of glyoxal to phenol charged to the reaction mixture is about 0.15 to 0.22 moles of glyoxal for each mole of phenol. The glyoxal is added continuously or by stepwise additions to the phenol so as to keep the aldehyde units in the reaction mixture to less than about 70% of the aldehyde units in the total quantity of glyoxal to be charged for making the polyphenol. Water is distilled stepwise or continuously from the reaction mixture. The catalyst is removed from the reaction mixture by further distilling the reaction mixture, generally at higher temperatures.
    • 该说明书公开了一种用于制造具有高UV吸光度的荧光多酚产物,其随后的环氧化以及多酚产物和环氧化衍生物及其组合物的方法。 在约80℃至约100℃的温度下,用摩尔过量的苯酚在酸性催化剂存在下,在约170℃的温度下从反应混合物中除去多酚产物。 对于每摩尔苯酚,加入反应混合物中乙二醛与苯酚的总摩尔比为约0.15至0.22摩尔乙二醛。 连续加入乙二醛或通过逐步添加到苯酚中,以便使反应混合物中的醛单元保持在少量约70%的醛单元中,用于制备多酚的乙二醛总量。 从反应混合物中逐步或连续蒸馏水。 通常在较高温度下进一步蒸馏反应混合物,从反应混合物中除去催化剂。
    • 27. 发明申请
    • MULTI-LAYER CIRCUIT BOARD AND MANUFACTURING METHOD THEREOF
    • 多层电路板及其制造方法
    • WO2011127867A3
    • 2012-05-03
    • PCT/CN2011074807
    • 2011-05-27
    • HUAWEI TECH CO LTDDING LI
    • DING LI
    • H05K1/02H05K3/46
    • H05K1/0298H05K1/0266H05K3/4611H05K3/4638H05K2201/09781H05K2201/09936Y10T29/49126
    • A multi-layer circuit board is provided. The multi-layer circuit board comprises: a plurality of core boards (1) laminated together, the core board (1) comprises an insulating layer and at least one conductive layer attached together, the conductive layer comprises a circuit, the core board (1) has at least one identification conductor (11) disposed on the edge of the at least one conductive layer, the identification conductor (11) forms an identification pattern on a side surface of the core board (1) along a core boards lamination direction, and the identification patterns of the plurality of core boards (1) are different from each other on the side surface of the multi-layer circuit board along the core boards lamination direction. A method of manufacturing the multi-layer circuit board is also provided.
    • 提供多层电路板。 多层电路板包括:层叠在一起的多个芯板(1),所述芯板(1)包括绝缘层和附着在一起的至少一个导电层,所述导电层包括电路,所述芯板(1) )具有设置在所述至少一个导电层的边缘上的至少一个识别导体(11),所述识别导体(11)沿着所述芯板层叠方向在所述芯板(1)的侧表面上形成识别图案, 并且所述多个核心板(1)的识别图案在所述多层电路板的沿所述芯板层叠方向的侧面上彼此不同。 还提供了制造多层电路板的方法。