Polycarbonate and process for producing the same
    5.
    发明授权
    Polycarbonate and process for producing the same 有权
    聚碳酸酯及其制造方法

    公开(公告)号:US07365148B2

    公开(公告)日:2008-04-29

    申请号:US10560934

    申请日:2004-06-14

    IPC分类号: C08G64/00

    CPC分类号: C08G64/183 C08G64/0208

    摘要: A polycarbonate containing an ether diol residue producible from a polysaccharide and expressed by the following formula (1), and a diol residue expressed by the following formula (2) —O—(CmH2m)—O—   (2) (here, m is an integer of 2 to 12), wherein said ether diol residue amounts to 65-98 wt. % of all the diol residues, and having a glass transition temperature of 90° C. or higher.

    摘要翻译: 含有可由多糖生成并由下式(1)表示的醚二醇残基的聚碳酸酯和由下式(2)表示的二醇残基<?in-line-formula description =“In-line Formulas”end = “(”)“ - O-(C m H 2 m) - O-(2)<?在线公式描述=”在线公式“结束 =“尾”→(这里,m为2〜12的整数),其中所述醚二醇残基为65-98重量%。 所有二醇残基的百分比,玻璃化转变温度为90℃以上。

    Polycarbonate and process for producing the same
    6.
    发明申请
    Polycarbonate and process for producing the same 有权
    聚碳酸酯及其制造方法

    公开(公告)号:US20060149024A1

    公开(公告)日:2006-07-06

    申请号:US10560934

    申请日:2004-06-14

    IPC分类号: C08G64/00

    CPC分类号: C08G64/183 C08G64/0208

    摘要: A polycarbonate containing an ether diol residue producible from a polysaccharide and expressed by the following formula (1), and a diol residue expressed by the following formula (2) —O—(CmH2m)—O—  (2) (here, m is an integer of 2 to 12), wherein said ether diol residue amounts to 65-98 wt. % of all the diol residues, and having a glass transition temperature of 90° C. or higher.

    摘要翻译: 含有可由多糖生成并由下式(1)表示的醚二醇残基的聚碳酸酯和由下式(2)表示的二醇残基<?in-line-formula description =“In-line Formulas”end = “(”)“ - O-(C m H 2 m) - O-(2)<?在线公式描述=”在线公式“结束 =“尾”→(这里,m为2〜12的整数),其中所述醚二醇残基为65-98wt。 所有二醇残基的百分比,玻璃化转变温度为90℃以上。

    PROCESS OF PRODUCING POLYLACTIC ACID
    8.
    发明申请
    PROCESS OF PRODUCING POLYLACTIC ACID 失效
    生产聚酸的方法

    公开(公告)号:US20100056751A1

    公开(公告)日:2010-03-04

    申请号:US12526456

    申请日:2008-02-06

    IPC分类号: C08G63/08

    摘要: It is an object of the present invention to produce a polylactic acid having a high molecular weight such as a weight average molecular weight (Mw) of more than 100,000 from which only a stereocomplex crystal is grown even by repeating melting and crystallization. The present invention is a process of producing a polylactic acid, including the steps of: (i) obtaining a solid by kneading together poly(L-lactic acid) and poly(D-lactic acid) at a temperature of 160 to 225° C. and crystallizing the kneaded product; and (ii) melt kneading the obtained solid.

    摘要翻译: 本发明的目的是制备具有高分子量的重均分子量(Mw)超过100,000的聚乳酸,即使通过重复熔融和结晶也仅生长立体络合物晶体。 本发明是一种制备聚乳酸的方法,包括以下步骤:(i)通过在160-225℃的温度下将聚(L-乳酸)和聚(D-乳酸)捏合在一起获得固体 并使捏合产物结晶; 和(ii)熔融捏合所得固体。

    Process of producing polylactic acid
    9.
    发明授权
    Process of producing polylactic acid 失效
    生产聚乳酸的方法

    公开(公告)号:US08163849B2

    公开(公告)日:2012-04-24

    申请号:US12526456

    申请日:2008-02-06

    IPC分类号: C08G63/91

    摘要: It is an object of the present invention to produce a polylactic acid having a high molecular weight such as a weight average molecular weight (Mw) of more than 100,000 from which only a stereocomplex crystal is grown even by repeating melting and crystallization. The present invention is a process of producing a polylactic acid, including the steps of: (i) obtaining a solid by kneading together poly(L-lactic acid) and poly(D-lactic acid) at a temperature of 160 to 225° C. and crystallizing the kneaded product; and (ii) melt kneading the obtained solid.

    摘要翻译: 本发明的目的是制备具有高分子量的重均分子量(Mw)超过100,000的聚乳酸,即使通过重复熔融和结晶也仅生长立体络合物晶体。 本发明是一种制备聚乳酸的方法,包括以下步骤:(i)通过在160-225℃的温度下将聚(L-乳酸)和聚(D-乳酸)捏合在一起获得固体 并使捏合产物结晶; 和(ii)熔融捏合所得固体。