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
    • 4. 发明申请
    • POLYMER, PROCESS AND USE
    • 聚合物,工艺和用途
    • WO2012175622A1
    • 2012-12-27
    • PCT/EP2012/061991
    • 2012-06-21
    • DSM IP ASSETS B.V.FRIEDERICHS, Joseph, PetronellaVERMEULEN, Jacobus, Adriaan, AntoniusDRIESSEN, Marco, Marcus, MatheusJANSEN, Johan, Franz, Gradus, AntoniusUDDING, Jan, Henderikus
    • FRIEDERICHS, Joseph, PetronellaVERMEULEN, Jacobus, Adriaan, AntoniusDRIESSEN, Marco, Marcus, MatheusJANSEN, Johan, Franz, Gradus, AntoniusUDDING, Jan, Henderikus
    • C08G69/00C08G69/42C08G83/00
    • C08G69/26C04B24/287C08G69/00C08G69/42C08G83/005C09D175/04C09D177/06
    • There is described a process for producing a gel free hyperbranched polyamide polymer P having a polydispersity of at least 1.1 and a weight average molecular weight of at least 300 daltons, having primary amino groups (useful as a crosslinker). The process comprises the step of reacting Reagent A, a compound comprising at least one amino group (-NH 2 ) and one functional group selected from the group consisting of a further amino group (-NH 2 ), thiol (-SH) and a secondary amine radical (-NHR); (where R denotes a hydrocarbo group) (=functional amine) and Reagent B, an alpha -beta unsaturated Michael-reactive ester comprising a plurality of ester groups (=diester);in a molar ratio of amine A to diester B greater than 1 but less than 3 (preferably 2.1 to 2.9);to form the polyamide in a two stage reaction Michael addition and then amidation. The amine in kept in excess with at least 5% of water by total weight of the amine and diester, a reaction temperature less than the boiling point of the amine; and is held under reduced pressure (30 mbar to 1 atms). Gelation does not occur even after substantially all ethylenic (-C=C- ) double bonds; and >95% ester [ -C(O)=O ] groups have reacted. This violates the Flory rules which predict a gel would form based on the number of functional groups present and their degree of conversion. These polymers may be used as a replacement for polyethylene imine (PEI) for example on plastics; in coatings, colours and/or adhesives; with metals; on textiles and fibres; in water treatment, paper, mineral processing and/or chemically modified Various chemical modifications and further reactions of these polymers are also described. A diverse range of other uses are also described including as additives for composite compositions, such as specialty additives for superplasticizers in concrete admixtures.
    • 描述了具有至少1.1的多分散性和至少300道尔顿的具有伯氨基(可用作交联剂)的无凝胶超支化聚酰胺聚合物P的方法。 该方法包括使试剂A,包含至少一个氨基(-NH 2)和一个选自另外的氨基(-NH 2),硫醇(-SH)和仲胺(-NH 2)的官能团的化合物 自由基(-NHR); (其中R表示烃基)(=官能胺)和试剂B,包含多个酯基(=二酯)的α-不饱和Michael反应性酯;胺A与二酯B的摩尔比大于1 但小于3(优选2.1至2.9);在两步反应中形成聚酰胺迈克尔加成然后酰胺化。 胺与胺和二酯的总重量与至少5%的水保持过量,反应温度小于胺的沸点; 并保持在减压(30mbar至1atms)下。 即使在基本上所有的乙烯基(-C = C-)双键之后,凝胶也不会发生; 和> 95%酯[-C(O)= O]基团已经反应。 这违反了Flory规则,根据存在的功能组的数量及其转化程度,预测凝胶将形成。 这些聚合物可用作例如聚乙烯亚胺(PEI)在塑料上的替代物; 在涂料,颜色和/或粘合剂中; 与金属; 纺织和纤维; 在水处理,纸,矿物加工和/或化学改性中也描述了这些聚合物的各种化学修饰和进一步的反应。 还描述了多种其他用途,包括作为复合组合物的添加剂,例如混凝土外加剂中的超增塑剂的专用添加剂。