Poly(lactic-co-glycolic acid) synthesized via copolycondensation catalyzed by biomass creatinine
    1.
    发明授权
    Poly(lactic-co-glycolic acid) synthesized via copolycondensation catalyzed by biomass creatinine 有权
    通过由生物质肌酐催化的共缩聚合成的聚(乳酸 - 共 - 乙醇酸)

    公开(公告)号:US09062159B2

    公开(公告)日:2015-06-23

    申请号:US14129111

    申请日:2011-11-03

    摘要: A method for synthesizing a medical grade biodegradable material, poly(lactic-co-glycolic acid), copolycondensation of lactic acid and glycolic acid catalyzed by biomass creatinine. The present invention uses commercialized creatinine (a type of biomaterial organic guanidine compounds—the arginine metabolite creatinine (CR) in human body) as the catalyst and industrial lactic acid (LA, mass content 85%, aqueous solution) and glycolic acid (GA, 95%) as the monomer to synthesize the high biosafety of medical poly(lactic-co-glycolic acid) in terms of two steps polycondensation without solvent. The method of the present invention has the following characters: green technology is used, raw materials required are low in costs, operation is simple and convenient, and it is easy for industrialization; the catalyst, creatinine, used in the invention has high biocompatibility and biosafety, and no cytotoxicity; the poly(lactic-co-glycolic acid) synthesized is free of any metal and other toxic residues; Further, the molecular weight distribution for all synthesized products is narrow and the molecular weight is controllable within 1.8-17.7×104; and the poly(lactic-co-glycolic acid) synthesized is suitable for use as implantable material for hard tissue repair, surgical sutures, and the carrier for targeting drugs and controlled release drugs.

    摘要翻译: 用于合成医用级生物降解材料的方法,聚(乳酸 - 共 - 乙醇酸),由生物体肌酐催化的乳酸和乙醇酸的共缩聚。 本发明使用商业化肌酐(一种生物材料有机胍化合物 - 人体中的精氨酸代谢物肌酸酐(CR))作为催化剂和工业乳酸(LA,质量含量85%,水溶液)和乙醇酸(GA, 95%)作为单体,以两步缩聚无溶剂的方式合成医用聚(乳酸 - 共 - 乙醇酸)的高生物安全性。 本发明的方法具有以下特征:使用绿色技术,所需原料成本低,操作简单方便,工业化容易; 本发明使用的催化剂,肌酸酐具有高生物相容性和生物安全性,无细胞毒性; 合成的聚(乳酸 - 共 - 乙醇酸)不含任何金属和其他有毒残留物; 此外,所有合成产物的分子量分布窄,分子量可控于1.8-17.7×104; 合成的聚(乳酸 - 共 - 乙醇酸)适用于硬组织修复,手术缝合线和用于靶向药物和控释药物的载体的植入材料。

    Polycondensation of lactic acid for medical biodegradable polylactic acid catalyzed by creatinine
    3.
    发明授权
    Polycondensation of lactic acid for medical biodegradable polylactic acid catalyzed by creatinine 有权
    乳酸对肌酸酐催化的医用可生物降解聚乳酸的缩聚

    公开(公告)号:US08846853B2

    公开(公告)日:2014-09-30

    申请号:US13511311

    申请日:2011-11-03

    IPC分类号: C08G63/08 A61K47/32 C08G63/82

    摘要: A direct polycondensation method for medical biodegradable polylactic acid (PLA). The invention uses commercialized creatinine (a type of biomaterial organic guanidine compounds—the arginine metabolite creatinine in human body) as the catalyst and industrial lactic acid (mass content 85-90%, aqueous solution) as the monomer to synthesize the PLA in terms of second polycondensation without solvent. Instead of tin catalysts having cytotoxicity, the catalyst used in the invention has high biocompatibility and biosafety. The synthesized PLA does not contain any metal and other toxic components; therefore, it can be used as the carrier for targeting drugs and controlled release drugs. The green catalyst and green processing method (no solvent applied and no toxic products produced) are used to synthesize the green biodegradable PLA with high biosafety. The molecular weight distribution for all synthesized products is narrow and the molecular weight is controllable within 1.5-3.0×104.

    摘要翻译: 医用可生物降解聚乳酸(PLA)的直接缩聚方法。 本发明使用商业化肌酐(一种生物材料有机胍化合物 - 人体中的精氨酸代谢物肌酸酐)作为催化剂,工业乳酸(质量含量85-90%,水溶液)作为单体合成PLA 第二次缩聚无溶剂。 代替具有细胞毒性的锡催化剂,本发明中使用的催化剂具有高生物相容性和生物安全性。 合成的PLA不含任何金属和其他有毒成分; 因此,它可以用作靶向药物和控释药物的载体。 使用绿色催化剂和绿色加工方法(无溶剂应用,无有毒产物生产)合成具有高生物安全性的绿色生物降解PLA。 所有合成产物的分子量分布窄,分子量可控1.5-3.0×104。

    POLYCONDENSATION OF LACTIC ACID FOR MEDICAL BIODEGRADABLE POLYLACTIC ACID CATALYZED BY CREATININE
    4.
    发明申请
    POLYCONDENSATION OF LACTIC ACID FOR MEDICAL BIODEGRADABLE POLYLACTIC ACID CATALYZED BY CREATININE 有权
    用于通过CREATININE催化的医用生物可降解聚乳酸的乳酸的聚合

    公开(公告)号:US20130116400A1

    公开(公告)日:2013-05-09

    申请号:US13511311

    申请日:2011-11-03

    IPC分类号: C08G63/06

    摘要: The present invention provides a direct polycondensation method for medical biodegradable polylactic acid (PLA) using creatinine catalyzed lactic acid. The invention uses commercialized creatinine (a type of biomaterial organic guanidine compounds—the arginine metabolite creatinine (CR) in human body) as the catalyst and industrial lactic acid (LA, mass content 85-90%, aqueous solution) as the monomer to synthesize the high biosafety of medical PLA in terms of second polycondensation without solvent (identity). Instead of tin catalysts having cytotoxicity, the catalyst used in the invention has high biocompatibility and biosafety. The synthesized PLA does not contain any metal and other toxic components; therefore, it can be used as the carrier for targeting drugs and controlled release drugs. In addition, the green catalyst and green processing method (no solvent applied and no toxic products produced) are used in the invention to synthesize the green biodegradable PLA with high biosafety. The polymerization reaction is simple and the raw materials required are low in costs, thus it is easy for industrialization. Further, the molecular weight distribution for all synthesized products is narrow and the molecular weight is controllable within 1.5-3.0×104.

    摘要翻译: 本发明提供使用肌酸酐催化乳酸的医用可生物降解聚乳酸(PLA)的直接缩聚方法。 本发明使用商业化肌酐(一种生物材料有机胍化合物 - 人体中的精氨酸代谢物肌酸酐(CR))作为催化剂,工业乳酸(LA,质量含量85-90%,水溶液)作为单体合成 医用PLA的高生物安全性在无溶剂(身份)的第二缩聚方面。 代替具有细胞毒性的锡催化剂,本发明中使用的催化剂具有高生物相容性和生物安全性。 合成的PLA不含任何金属和其他有毒成分; 因此,它可以用作靶向药物和控释药物的载体。 此外,本发明中使用绿色催化剂和绿色加工方法(无溶剂施用,无有毒产物)合成具有高生物安全性的绿色可生物降解PLA。 聚合反应简单,所需原料成本低,易于工业化。 此外,所有合成产物的分子量分布窄,分子量可控制在1.5-3.0×104内。

    POLY(LACTIC-CO-GLYCOLIC ACID) SYNTHESIZED VIA COPOLYCONDENSATION CATALYZED BY BIOMASS CREATININE
    6.
    发明申请
    POLY(LACTIC-CO-GLYCOLIC ACID) SYNTHESIZED VIA COPOLYCONDENSATION CATALYZED BY BIOMASS CREATININE 有权
    通过生物质CREATININE催化的共聚合合合成的聚(丙烯酸 - 聚乙酸)

    公开(公告)号:US20140142275A1

    公开(公告)日:2014-05-22

    申请号:US14129111

    申请日:2011-11-03

    IPC分类号: C08G63/87

    摘要: A method for synthesizing a medical grade biodegradable material, poly(lactic-co-glycolic acid), copolycondensation of lactic acid and glycolic acid catalyzed by biomass creatinine. The present invention uses commercialized creatinine (a type of biomaterial organic guanidine compounds—the arginine metabolite creatinine (CR) in human body) as the catalyst and industrial lactic acid (LA, mass content 85%, aqueous solution) and glycolic acid (GA, 95%) as the monomer to synthesize the high biosafety of medical poly(lactic-co-glycolic acid) in terms of two steps polycondensation without solvent. The method of the present invention has the following characters: green technology is used, raw materials required are low in costs, operation is simple and convenient, and it is easy for industrialization; the catalyst, creatinine, used in the invention has high biocompatibility and biosafety, and no cytotoxicity; the poly(lactic-co-glycolic acid) synthesized is free of any metal and other toxic residues; Further, the molecular weight distribution for all synthesized products is narrow and the molecular weight is controllable within 1.8-17.7×104; and the poly(lactic-co-glycolic acid) synthesized is suitable for use as implantable material for hard tissue repair, surgical sutures, and the carrier for targeting drugs and controlled release drugs.

    摘要翻译: 用于合成医用级生物降解材料的方法,聚(乳酸 - 共 - 乙醇酸),由生物体肌酐催化的乳酸和乙醇酸的共缩聚。 本发明使用商业化肌酐(一种生物材料有机胍化合物 - 人体中的精氨酸代谢物肌酸酐(CR))作为催化剂和工业乳酸(LA,质量含量85%,水溶液)和乙醇酸(GA, 95%)作为单体,以两步缩聚无溶剂的方式合成医用聚(乳酸 - 共 - 乙醇酸)的高生物安全性。 本发明的方法具有以下特征:使用绿色技术,所需原料成本低,操作简单方便,工业化容易; 本发明使用的催化剂,肌酸酐具有高生物相容性和生物安全性,无细胞毒性; 合成的聚(乳酸 - 共 - 乙醇酸)不含任何金属和其他有毒残留物; 此外,所有合成产物的分子量分布窄,分子量可控于1.8-17.7×104; 合成的聚(乳酸 - 共 - 乙醇酸)适用于硬组织修复,手术缝合线和用于靶向药物和控释药物的载体的植入材料。

    TECHNOLOGIES FOR AUTHENTICATION AND SINGLE-SIGN-ON USING DEVICE SECURITY ASSERTIONS
    9.
    发明申请
    TECHNOLOGIES FOR AUTHENTICATION AND SINGLE-SIGN-ON USING DEVICE SECURITY ASSERTIONS 有权
    使用设备安全性认证的认证和单一标识技术

    公开(公告)号:US20160285858A1

    公开(公告)日:2016-09-29

    申请号:US14670955

    申请日:2015-03-27

    摘要: Technologies for remote device authentication include a client computing device, an identity provider, and an application server in communication over a network. The identity provider sends an authentication challenge to the client. A capability proxy of the client intercepts an authentication challenge response and retrieves one or more security assertions from a secure environment of the client computing device. The capability proxy may be an embedded web server providing an HTTP interface to platform features of the client. The client sends a resource access token based on the security assertions to the identity provider. The identity provider verifies the resource access token and authenticates the client computing device based on the resource access token in addition to user authentication factors such as username and password. The identity provider sends an authentication response to the client, which forwards the authentication response to the application server. Other embodiments are described and claimed.

    摘要翻译: 用于远程设备认证的技术包括客户端计算设备,身份提供商和通过网络进行通信的应用服务器。 身份提供者向客户端发送认证挑战。 客户端的能力代理拦截认证挑战响应,并从客户端计算设备的安全环境检索一个或多个安全断言。 能力代理可以是向客户端的平台特征提供HTTP接口的嵌入式web服务器。 客户端将基于安全性断言的资源访问令牌发送给身份提供者。 身份提供者验证资源访问令牌,并根据用户认证因素(如用户名和密码),基于资源访问令牌对客户端计算设备进行身份验证。 身份提供者向客户端发送认证响应,该响应将认证响应转发给应用服务器。 描述和要求保护其他实施例。

    Monochrome Profile Generation Mechanism
    10.
    发明申请
    Monochrome Profile Generation Mechanism 审中-公开
    单色轮廓生成机制

    公开(公告)号:US20160247049A1

    公开(公告)日:2016-08-25

    申请号:US14628787

    申请日:2015-02-23

    IPC分类号: G06K15/02

    摘要: A method disclosed. The method includes receiving color data, converting the color data to grayscale data by analyzing color gamut and perceptual color differences in the color data and generating a profile based on the conversion.

    摘要翻译: 公开的方法。 该方法包括接收彩色数据,通过分析色彩数据中的色域和感知色差将颜色数据转换成灰度数据,并基于转换生成轮廓。