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
    • 11. 发明授权
    • Acylsuccinic acid polyesters, a process for their preparation and their
use in thermosetting plastics and coatings
    • 酰基琥珀酸聚酯,其制备方法及其在热固性塑料和涂料中的应用
    • US5929197A
    • 1999-07-27
    • US888871
    • 1997-07-07
    • Burkhard KohlerRolf-Volker Meyer
    • Burkhard KohlerRolf-Volker Meyer
    • C08G63/91C09D167/02C08G14/12C08L67/00C08L75/06
    • C08G63/918C09D167/02
    • The present invention relates to a process for preparing acylsuccinic acid polyesters by reactingA) a polyester, which is the reaction product oi) maleic acid, maleic acid esters, maleic anhydride, fumaric acid and/or fumaric acid esters and optionally other diacids, monoacids or their derivatives withii) diols and optionally monofunctional alcohols,wherein the molar ratio of diols to diacids and their derivatives is 0.667:1 to 1.5:1, and the molar ratio of maleic acid and its derivatives+ fumaric acid and its derivatives to other diacids and their derivatives is greater than 0.15:1, and the molar ratio of monofunctional compounds to difunctional compounds is less than 0.4:1, withB) aliphatic C.sub.2 -C.sub.22 aldehydes and/or cycloaliphatic C.sub.6 -C.sub.20 aldehydes,in the presence of 0.2 to 10 % by weight (based on the weight of polyester) of free radical initiators at a temperature of 60 to 160.degree. C. and a pressure of 1 to 20 bar wherein the molar ratio of aldehydes to maleic acid ester and fumaric acid ester units is 1:1 to 50:1, and distilling off excess aldehyde.The present invention also relates to the acylsuccinic acid polyesters prepared by this process and to their use for the production of thermosetting plastics by reaction with di- or polyisocyanates such that 0.5 to 2 equivalents of isocyanate groups are used for each equivalent of acylsuccinic acid ester units.
    • 本发明涉及一种制备酰基琥珀酸聚酯的方法,该方法是通过使A)聚酯,即马来酸反应产物,马来酸酯,马来酸酐,富马酸和/或富马酸酯以及任选的其它二酸,单酸 或其衍生物与ii)二醇和任选的单官能醇,其中二醇与二酸及其衍生物的摩尔比为0.667:1至1.5:1,并且马来酸及其衍生物+富马酸及其衍生物与其它二酸的摩尔比 其衍生物大于0.15:1,单官能化合物与双官能化合物的摩尔比小于0.4:1,B)脂族C 2 -C 22醛和/或脂环族C 6 -C 20醛在0.2〜 在60至160℃的温度下,10重量%(基于聚酯的重量)的自由基引发剂和1至20巴的压力,其中醛与马来酸酯和fuma的摩尔比 蓖麻油酸酯单位为1:1至50:1,并蒸发过量的醛。 本发明还涉及通过该方法制备的酰基琥珀酸聚酯及其用于通过与二异氰酸酯或多异氰酸酯反应生产热固性塑料的用途,使得每当量的酰基琥珀酸酯单元使用0.5至2当量的异氰酸酯基团 。
    • 16. 发明授权
    • Polyisocyanates containing isocyanurate groups and prepared by
trimerizing alkyl-substituted cycloaliphatic diisocyanates
    • 含有异氰脲酸酯基并通过三烷基取代的环脂族二异氰酸酯制备的多异氰酸酯
    • US5837796A
    • 1998-11-17
    • US883477
    • 1997-06-25
    • Hans-Joachim SchollBernhard JansenRolf-Volker Meyer
    • Hans-Joachim SchollBernhard JansenRolf-Volker Meyer
    • C07D251/34C08G18/02C08G18/18C08G18/70C08G18/79C08G18/82
    • C07D251/34C08G18/706C08G18/792
    • The present invention relates to a process for preparing polyisocyanates containing isocyanurate groups by trimerizing a portion of the isocyanate groups of an organic polyisocyanate component containing a) one or more diisocyanates corresponding to formula (1) ##STR1## wherein R represents a saturated, straight-chain, aliphatic hydrocarbon group having 8 to 15 carbon atoms and optionally b) up to 95 NCO equivalent-%, based on the total equivalents a) and b), of one or more organic polyisocyanates other than a), in the presence of trimerization catalysts and terminating the trimerization reaction at any desired degree of trimerization. The invention also relates to the polyisocyanates containing isocyanurate groups obtained by this process and to their use, optionally in excess starting polyisocyanates and optionally blocked with blocking agents for isocyanate groups, as an isocyanate component for preparing polyisocyanate addition products.
    • 本发明涉及通过将有机多异氰酸酯组分的一部分异氰酸酯基团三聚而制备含有异氰脲酸酯基的多异氰酸酯的方法,该有机多异氰酸酯组分含有a)一种或多种对应于式(1)的二异氰酸酯,其中R表示饱和 ,具有8至15个碳原子的直链脂族烃基和任选的b)基于a)和b)的总当量a)和b)至多95NCO当量,一种或多种除a)之外的有机多异氰酸酯,在 存在三聚催化剂并以任何所需的三聚程度终止三聚反应。 本发明还涉及通过该方法获得的含有异氰脲酸酯基团的多异氰酸酯基团,以及它们的用途,任选地过量起始多异氰酸酯,并任选地用异氰酸酯基团的封端剂封端,作为用于制备多异氰酸酯加成产物的异氰酸酯组分。