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    • 2. 发明授权
    • Soft, elastic, plasticizer-free thermoplastic polyurethane and process to synthesize the same
    • 软,弹性,无增塑剂的热塑性聚氨酯及其合成方法
    • US08183330B2
    • 2012-05-22
    • US12255889
    • 2008-10-22
    • Julius FarkasRavi R. VedulaCharles P. Jacobs
    • Julius FarkasRavi R. VedulaCharles P. Jacobs
    • C08G63/06
    • C08G18/664C08G18/0895C08G18/4238C08G2410/00Y10T442/30Y10T442/40Y10T442/681
    • The present invention discloses a thermoplastic polyurethane which is comprised of the reaction product of (1) a hydroxyl terminated intermediate, (2) a polyisocyanate, and (3) a glycol chain extender selected from the group consisting of ethylene glycol and propylene glycol; wherein the hydroxyl terminated intermediate is selected from the group consisting of hydroxyl terminated polyether intermediates and hydroxyl terminated polyester intermediates; wherein the hydroxyl terminated intermediate is comprised of repeat units that are derived from a branched glycol or is comprised of at least 2 different repeating units; wherein the thermoplastic polyurethane has a weight average molecular weight of at least 100,000 Daltons; wherein the thermoplastic polyurethane includes hard segments that are the reaction product of the polyisocyanate and the glycol chain extender; and wherein the hard segments represent from 10 to 40 weight percent of the total weight of the thermoplastic polyurethane.
    • 本发明公开了一种热塑性聚氨酯,其由(1)羟基封端的中间体,(2)多异氰酸酯和(3)选自乙二醇和丙二醇的二醇扩链剂的反应产物组成; 其中羟基封端的中间体选自羟基封端的聚醚中间体和羟基封端的聚酯中间体; 其中羟基封端的中间体由衍生自支化二醇的重复单元组成或由至少2个不同的重复单元组成; 其中所述热塑性聚氨酯具有至少100,000道尔顿的重均分子量; 其中所述热塑性聚氨酯包括作为所述多异氰酸酯和所述乙二醇增链剂的反应产物的硬链段; 并且其中硬链段占热塑性聚氨酯总重量的10-40重量%。
    • 3. 发明授权
    • Thermoplastic polyurethane with reduced tendency to bloom
    • 热塑性聚氨酯具有降低的开花倾向
    • US08790763B2
    • 2014-07-29
    • US12712329
    • 2010-02-25
    • Julius FarkasCharles P. Jacobs
    • Julius FarkasCharles P. Jacobs
    • B32B1/08C08G18/00
    • B29C45/0001B29C45/7207B29C47/0004B29C47/0011B29C47/0021B29C47/0023B29C47/0026B29C47/78B29C47/8805B29K2075/00B29K2995/0026B29K2995/0088B29L2007/00B29L2023/00C08G18/4238C08G18/664C08G18/7671C08G2410/00Y10T428/139
    • The present invention discloses a thermoplastic polyurethane which is comprised of the reaction product of (1) a hydroxyl terminated polyester intermediate, (2) a polyisocyanate, and (3) a glycol chain extender; wherein the hydroxyl terminated polyester intermediate is comprised of repeat units that are derived from 1,3-propylene glycol and a dicarboxylic acid; wherein the hydroxyl terminated polyester intermediate has a number average molecular weight from 500 to 10,000; and wherein the thermoplastic polyurethane includes hard segments that are the reaction product of the polyisocyanate and the glycol chain extender. This thermoplastic polyurethane is unique in that it has a greatly reduced tendency to bloom. This is highly desirable in applications where high clarity is desired because blooming causes articles containing the thermoplastic polyurethane to be hazy or foggy in appearance. Blooming can also reduce the ability of an article made with the thermoplastic polyurethane to be securely bound to another article with an adhesive.
    • 本发明公开了一种热塑性聚氨酯,其由(1)羟基封端的聚酯中间体,(2)多异氰酸酯和(3)乙二醇增链剂的反应产物组成; 其中羟基封端的聚酯中间体由衍生自1,3-丙二醇和二羧酸的重复单元组成; 其中所述羟基封端的聚酯中间体的数均分子量为500至10,000; 并且其中所述热塑性聚氨酯包括作为所述多异氰酸酯和所述乙二醇扩链剂的反应产物的硬链段。 这种热塑性聚氨酯是独特的,因为它具有大大降低的开花倾向。 这在需要高透明度的应用中是非常需要的,因为起霜使得含有热塑性聚氨酯的物品在外观上模糊或有雾。 开花也可以降低用热塑性聚氨酯制成的制品与粘合剂牢固地结合到另一制品上的能力。
    • 10. 发明授权
    • Low viscosity diprimary amine reactive modifiers for epoxy resins
    • 用于环氧树脂的低粘度二元胺反应性改性剂
    • US5300584A
    • 1994-04-05
    • US947078
    • 1992-09-17
    • Julius Farkas
    • Julius Farkas
    • C08L63/00C08F36/00C08F236/00
    • C08L63/00
    • A low viscosity, diprimary amine-terminated reactive liquid polymer with low residual amine content, comprising the reaction product of a diprimary amine having the following formulaH.sub.2 N--R--NH.sub.2wherein --NH.sub.2 is a primary terminal amine group; andwherein R is(1) a C.sub.4 -C.sub.12 aliphatic chain having alkyl branches containing 2 to 4 carbons, wherein the positions of said alkyl branches within the C.sub.4 -C.sub.12 aliphatic chain are such that they impart relatively different rates of reactivity to the terminal primary amine groups; or(2) a carbon to carbon backbone containing at least one non-reactive heteroatom, comprising(a) a C.sub.2 -C.sub.20 aliphatic or cycloaliphatic moiety containing at least one tertiary amine; or(b) a polyoxyalkylene wherein the alkyl portion of said polyoxyalkylene contains 2 to 4 carbon atoms;and a functional-terminated reactive liquid polymer useful as an epoxy resin modifier employed with a curing agent.
    • 包含具有低残留胺含量的低粘度的二胺胺封端的反应性液体聚合物,其包含具有下列通式的二原子胺的反应产物:H 2 N-R-NH 2,其中-NH 2是伯氨基; 并且其中R是(1)具有包含2至4个碳原子的烷基支链的C 4 -C 12脂族链,其中所述C 4 -C 12脂族链中的所述烷基分支的位置使得它们赋予与末端初级相对不同的反应性速率 胺基; 或(2)包含至少一个非反应性杂原子的碳 - 碳骨架,包含(a)含有至少一个叔胺的C 2 -C 20脂族或脂环族部分; 或(b)聚氧化烯,其中所述聚氧化烯的烷基部分含有2至4个碳原子; 以及可用作与固化剂一起使用的环氧树脂改性剂的功能性封端的反应性液体聚合物。