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. 发明授权
    • Graft polymers
    • 接枝聚合物
    • US4071580A
    • 1978-01-31
    • US662263
    • 1976-02-27
    • Heinrich AlbertsHerbert Bartl
    • Heinrich AlbertsHerbert Bartl
    • C08F255/00C08F255/02C08F291/06C08F263/02C08F263/04
    • C08F255/02C08F291/06
    • A process for the preparation of graft polymers from ethylene homopolymers or copolymers and olefinically unsaturated monomers, especially from ethylene/vinyl ester copolymers, in the presence of a radical forming agent in homogenous or heterogeneous phase, in which a mixture of (meth)acrylonitrile, at least one aromatic vinyl compound and vinylchloride are polymerized in the presence of an ethylene homopolymer or copolymer. The products obtained contain no ungrafted styrene/acrylonitrile copolymer and more than 80% by weight of the graft polymer is chemically almost uniform in structure. The products obtained according to the invention are eminently suitable for use as coating materials and as materials which can be thermoplastically processed.
    • 一种在乙烯均聚物或共聚物和烯属不饱和单体,特别是乙烯/乙烯基酯共聚物的自由基形成剂存在下在均相或非均相中制备接枝聚合物的方法,其中(甲基)丙烯腈, 在乙烯均聚物或共聚物存在下聚合至少一种芳族乙烯基化合物和氯乙烯。 获得的产品不含未接枝的苯乙烯/丙烯腈共聚物,并且大于80重量%的接枝聚合物在结构上化学上几乎均匀。 根据本发明获得的产品非常适合用作涂料和作为可热塑化处理的材料。
    • 26. 发明授权
    • Process for the preparation of carbonic acid aryl esters of
polyester-diols lengthened via carbonate groups and their use for the
preparation of polyester-diol bis-diphenol carbonates and
polyester/polycarbonates
    • 通过碳酸酯基延长的聚酯二醇的碳酸芳酯的制备方法及其用于制备聚酯 - 二醇双二酚碳酸酯和聚酯/聚碳酸酯的用途
    • US4297455A
    • 1981-10-27
    • US910986
    • 1978-05-30
    • Christian LindnerCarlhans SulingHerbert BartlManfred SchreckenbergDieter FreitagKlaus Konig
    • Christian LindnerCarlhans SulingHerbert BartlManfred SchreckenbergDieter FreitagKlaus Konig
    • C08G63/64C08G63/00C08G63/76
    • C08G63/64
    • The present invention relates to a process for the preparation of bis-carbonic acid aryl esters of polyester-diols, lengthened via --OCOO-- groups, characterized in that polyester-diols with molecular weights Mn (number-average) of over 250, preferably over 600, are heated with carbonic acid bis-aryl esters at temperatures between about 100.degree. C. and 200.degree. C., preferably between about 110.degree. C. and 180.degree. C., in vacuo below about 35 mm Hg, preferably between about 25 and 1 mm Hg, in the presence of catalysts, less than one mol of carbonic acid bis-aryl ester being employed per OH group of the polyester-diol and the hydroxyaryl compounds formed being distilled off.The invention further relates to the bis-carbonic acid aryl esters of polyester-diols lengthened via --OCOO-- groups obtained according to the instant invention and their use for the preparation of polyester diol bis-diphenol carbonates, lengthened via carbonate groups, characterized in that polyester-diol bis-aryl carbonates are reacted with a diphenol at a temperature of from about 100.degree. to about 200.degree. C. in vacuo below about 35 mm Hg in the presence of a catalyst, wherein more than 1 mol of diphenol is employed per mol of carbonic acid aryl ester groups of the polyester-diol bis-aryl carbonate, lengthened via carbonate groups, and the resulting hydroxyaryl compound is distilled off.The invention finally relates to the polyester-diol bis-diphenol carbonates, lengthened via carbonate groups obtained according to the instant invention and their use for the preparation of polyester/polycarbonates and the polycarbonate/polyesters so prepared.
    • 本发明涉及通过-OCOO-基团延长的聚酯二醇的双碳酸芳基酯的制备方法,其特征在于分子量Mn(数均分子)超过250的聚酯二醇优选超过 600,在约100℃至200℃之间,优选约110℃至180℃之间的温度下,用碳酸双芳基酯加热,真空度低于约35mmHg,优选约25mm 和1mm Hg,在催化剂的存在下,每聚酯二醇的OH基和所形成的羟基芳基化合物使用少于1摩尔的碳酸双芳基酯。 本发明还涉及通过根据本发明获得的-OCOO-基团延长的聚酯二醇的双碳酸芳基酯及其用于制备通过碳酸酯基团延长的聚酯二醇双 - 二酚酚酸酯的用途,其特征在于 在催化剂存在下,聚酯 - 二醇双芳基碳酸酯与二酚在约100至约200℃的温度下在真空下在约35mm Hg下真空反应,其中每次使用多于1mol的二酚 将通过碳酸酯基延长的聚酯 - 二醇双芳基碳酸酯的碳酸芳基酯基和所得羟基芳基化合物蒸馏出。 本发明最终涉及通过根据本发明获得的碳酸酯基团延长的聚酯 - 二醇双 - 二酚碳酸酯及其制备聚酯/聚碳酸酯和如此制备的聚碳酸酯/聚酯的用途。