Highly branched polyamide graft copolymers
    3.
    发明授权
    Highly branched polyamide graft copolymers 有权
    高分支聚酰胺接枝共聚物

    公开(公告)号:US06391982B1

    公开(公告)日:2002-05-21

    申请号:US09605874

    申请日:2000-06-29

    IPC分类号: C08G7304

    摘要: A graft copolymer is prepared by a process comprising: graft polymerizing a polyamide-forming monomer selected from the group consisting of lactams and &ohgr;-aminocarboxylic acids and an oligocarboxylic acid selected from the group consisting of from 0.015 to about 3 mol. % of dicarboxylic acid and from 0.01 to about 1.2 mol. % of tricarboxylic acid, in each case the stated amounts of oligocarboxylic acid based on a molar amount of lactam, &ohgr;-aminocarboxylic acid or combination thereof, onto from 0.5 to 25% by weight, based on the graft copolymer, of a polyamine having at least 11 nitrogen atoms and a number-average molecular weight Mn of at least 500 g/mol., wherein the amino group concentration in the graft copolymer ranges from 100 to 2500 mmol./kg.

    摘要翻译: 接枝共聚物通过以下方法制备,该方法包括:将选自内酰胺和ω-氨基羧酸的聚酰胺形成单体和选自0.015至约3mol的寡羧酸接枝聚合。 %的二羧酸和0.01至约1.2mol。 %的三羧酸,在每种情况下,所述量的基于内酰胺,ω-氨基羧酸或其组合的摩尔量的寡羧酸的量为基于接枝共聚物的0.5至25重量%的多胺,其具有 至少11个氮原子和数均分子量Mn为至少500g / mol,其中接枝共聚物中的氨基浓度范围为100-2500mmol / kg。

    Polyamide graft copolymers
    4.
    发明授权
    Polyamide graft copolymers 失效
    聚酰胺接枝共聚物

    公开(公告)号:US06538073B1

    公开(公告)日:2003-03-25

    申请号:US09604281

    申请日:2000-06-26

    IPC分类号: C08L7700

    摘要: A graft copolymer suitable as a blend component or as a hot-melt adhesive, which contains the following monomer units: a) from 0.5 to 25% by weight, based on the graft copolymer, of a polyamine having at least 11 nitrogen atoms and a number-average molar mass Mn of at least 500 g/mol; and b) an equimolar combination of diamine and dicarboxylic acid as polyamide-forming monomers.

    摘要翻译: 适合作为共混组分或热熔粘合剂的接枝共聚物,其包含以下单体单元:a)基于接枝共聚物,0.5至25重量%的具有至少11个氮原子的多胺和 数均摩尔质量Mn为至少500g / mol; 和b)作为形成聚酰胺的单体的二胺和二羧酸的等摩尔组合。

    Free-flowing transparent polyamide molding composition
    5.
    发明授权
    Free-flowing transparent polyamide molding composition 有权
    自由流动的透明聚酰胺成型组合物

    公开(公告)号:US06407182B1

    公开(公告)日:2002-06-18

    申请号:US09768286

    申请日:2001-01-25

    IPC分类号: C08L7700

    CPC分类号: C08L77/00

    摘要: Transparent molding compositions are prepared by blending from 50 to 99 parts by weight of a transparent polyamide, and from 1 to 50 parts by weight of a graft copolymer, such that the sum of the parts by weight of the transparent polyamide and the graft copolymer is 100. The graft copolymer is prepared by reacting from 0.5 to 25% by weight, based on the graft copolymer, of a branched polyamine having at least 4 nitrogen atoms and having a number average molecular weight Mn of at least 146 g/mol, with polyamide-forming monomers selected from the group consisting of lactams, &ohgr;-aminocarboxylic acids, equimolar combinations of diamine and dicarboxylic acid, and combinations thereof.

    摘要翻译: 通过将50至99重量份的透明聚酰胺和1至50重量份的接枝共聚物共混来制备透明模塑组合物,使得透明聚酰胺和接枝共聚物的重量份之和为 接枝共聚物通过基于接枝共聚物使0.5至25重量%的具有至少4个氮原子并具有至少146g / mol数均分子量Mn的支链多胺与 选自内酰胺,ω-氨基羧酸,二胺和二羧酸的等摩尔组合的聚酰胺形成单体及其组合。

    PROCESS FOR REACTING A CARBOXYLIC ACID ESTER
    9.
    发明申请
    PROCESS FOR REACTING A CARBOXYLIC ACID ESTER 审中-公开
    反应羧酸酯的方法

    公开(公告)号:US20140141478A1

    公开(公告)日:2014-05-22

    申请号:US14077750

    申请日:2013-11-12

    IPC分类号: C12P7/62

    摘要: The invention provides a process for reacting a carboxylic acid ester of the formula (I) R1-A-COOR2   (I), wherein R1 is hydrogen, —CH2OH, —CHO, —COOR3, —CH2SH, —CH2OR3 or —CH2NH2, R2 is an alkyl group,R3 is hydrogen or an alkyl group, and A is a substituted, unsubstituted, linear, branched and/or cyclic alkylene, alkenylene, arylene or aralkylene radical having at least 4 carbons,in the presence of a cell. The process comprises a) contacting the cell with said carboxylic acid ester in an aqueous solution,wherein the cell is a recombinant cell which has reduced activity of a polypeptide comprising SEQ ID NO: 2 or a variant thereof over the wild-type cell.

    摘要翻译: 本发明提供使式(I)R1-A-COOR2(Ⅰ)的羧酸酯与式(Ⅰ)中R1为氢,-CH2OH,-CHO,-COOR3,-CH2SH,-CH2OR3或-CH2NH2,R2 在烷基存在下,R 3是氢或烷基,A是具有至少4个碳的取代的,未被取代的,直链的,支链的和/或环状的亚烷基,亚烯基,亚芳基或亚芳基。 该方法包括a)使细胞与所述羧酸酯在水溶液中接触,其中所述细胞是包含SEQ ID NO:2或其变体的多肽在野生型细胞上的活性降低的重组细胞。