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
    • 1. 发明授权
    • Water-dispersible epoxy modified alkyd resins
    • 水分散性环氧改性醇酸树脂
    • US4154709A
    • 1979-05-15
    • US883706
    • 1978-03-06
    • Ryoji UkitaAsao IsobeTakao HirayamaShigeyoshi Tanaka
    • Ryoji UkitaAsao IsobeTakao HirayamaShigeyoshi Tanaka
    • C08G63/66C09D167/08C09D3/64C09D3/66C09D5/02
    • C08G63/66C09D167/08
    • A water-dispersible epoxy modified alkyd resin produced by reacting (A) 0-50 parts by weight of oil or oil fatty acid, (B) 10-50 parts by weight of polyhydric alcohol, (C) 0-25 parts by weight of monobasic acid having 6 to 18 carbon atoms, (D) 15-70 parts by weight of polybasic acid having 4 to 10 carbon atoms or its anhydride, (E) 5-25 parts by weight of polyoxyalkylene glycol having a molecular weight of 600 to 20,000, and (F) an epoxy compound, wherein the ratio of the hydroxyl groups to the carboxyl groups in the components (A) through (E) is 0.625-1.8 and the amount of the component (F) is 3-50 parts by weight per 100 parts by weight of the total weight of the components (A) through (E), can provide water-dispersible coatings having improved drying characteristics and water resistance as well as corrosion resistance.
    • (A)0-50重量份的油或油脂肪酸,(B)10-50重量份的多元醇,(C)0-25重量份的 具有6至18个碳原子的一元酸,(D)15-70重量份的具有4至10个碳原子的多元酸或其酸酐,(E)5-25重量份的分子量为600至100的聚氧化亚烷基二醇 20,000和(F)环氧化合物,其中组分(A)至(E)中羟基与羧基的比例为0.625-1.8,组分(F)的量为3-50份, (A)至(E)中每100重量份的重量,可以提供具有改进的干燥特性和耐水性以及耐腐蚀性的水分散性涂料。
    • 6. 发明授权
    • Process for production of 5-arylpentanols
    • 5-芳基戊醇的制备方法
    • US06600079B2
    • 2003-07-29
    • US10254661
    • 2002-09-26
    • Akira UmadaShigeyoshi Tanaka
    • Akira UmadaShigeyoshi Tanaka
    • C07C2700
    • C07C29/17C07C33/20
    • A process for producing a 5-arylpentanol of formula (2): wherein R1 represents an aryl group which may be substituted with one or two or more of an alkyl or alkoxy group and has 6 to 12 carbon atoms in total, R3 represents a hydrogen atom, or an alkyl or alkenyl group of 1 to 6 carbon atoms, and R4 represents R2 defined below when R2 is a monovalent group or represents R2H when R2 is a divalent group, which comprises effecting hydrogenolysis of a pyran compound of formula (1): wherein, R1 and R3 are as defined above, R2 represents a hydrogen atom, an alkyl or alkenyl group of 1 to 6 carbon atoms, or an alkylidene or alkenylidene group of 1 to 6 carbon atoms, and a dotted line represents a possible bond and any one of the three bonds represented by dotted lines and solid lines is a double bond, in the presence of one or more catalysts selected from (a) a catalyst carrying two or more elements selected from noble metals in Group VIII in the periodic table and (b) an acid type palladium-supporting catalyst. 5-arylpentanols can be prepared in a high yield with low production of hydrocarbons without causing a problem with regard to corrosion of process equipment.
    • 一种制备式(2)的5-芳基戊醇的方法:其中R 1表示可被一个或两个或多个烷基或烷氧基取代并且总共具有6至12个碳原子的芳基,R 3表示氢 原子或1〜6个碳原子的烷基或烯基,R4表示当R2为一价基团时定义的R2,或R2表示二价基团时为R2H,其包括使式(1)的吡喃化合物进行氢解, 其中,R 1和R 3如上定义,R 2表示氢原子,1〜6个碳原子的烷基或链烯基或碳原子数为1〜6的亚烷基或亚链烯基,虚线表示可能的键 并且在一种或多种催化剂的存在下,由虚线和实线表示的三个键中的任一个是双键,所述催化剂选自(a)载有选自元素周期表中第Ⅷ族中的贵金属的两种或更多种元素的催化剂 和(b)酸型钯 - 移植催化剂。 5-芳基戊醇可以以高产率制备,低产烃量,而不会对工艺设备的腐蚀造成问题。