Method for producing lactic acid based polyurethane
    1.
    发明授权
    Method for producing lactic acid based polyurethane 失效
    生产乳酸基聚氨酯的方法

    公开(公告)号:US5380813A

    公开(公告)日:1995-01-10

    申请号:US138539

    申请日:1993-10-15

    摘要: The present invention relates to a production method of lactic acid-based polyurethanes. In the first phase of the product ion, the monomeric lactic acid is polymerized into an oligomer, the molecular weight thereof being about 500 to 10,000. Next, the oligomer thus obtained is copolymerized with an isocyanate reacting with the free hydroxyl and carboxyl groups thereof into polyurethane with a high molecular weight. To make the oligomer react with diol prior to the copolymerization is unnecessary according to the invention. The lactic acid used need not be absolutely pure, and by modifying the process, various biodegradable end products can be obtained therefrom, which according to the invention are appropriate for the material of disposable packages, agricultural film or planting pots, or as a coating of fertilizer granules.

    摘要翻译: 本发明涉及乳酸类聚氨酯的制造方法。 在产物离子的第一相中,将单体乳酸聚合成低聚物,其分子量为约500至10,000。 接着,将由此获得的低聚物与其游离羟基和羧基反应的异氰酸酯与高分子量的聚氨酯共聚。 为了使低聚物在共聚前与二醇反应,根据本发明是不必要的。 使用的乳酸不必是绝对纯的,通过改变方法,可以从其获得各种可生物降解的终产物,根据本发明,其可适用于一次性包装材料,农用膜或种植盆,或作为 肥料颗粒。

    Biodegradable coating
    2.
    发明申请
    Biodegradable coating 有权
    可生物降解涂料

    公开(公告)号:US20050080223A1

    公开(公告)日:2005-04-14

    申请号:US10492555

    申请日:2002-10-11

    摘要: The object of the present invention is a biodegradable polymer network and methods to make it. The polymer network consists of a cross-linked polyester resin, which is composed of hydroxy acid units, structural units derived from an unsaturated bifunctional monomer, and structural units derived from a polyol monomer. The polyester resin is produced directly by a polyoon-densation reaction, after which it is cross-linked to a polymer of high molecular weight The polyester can be co-polymerised with a co-monomer increasing flexibility, or be blended with a reactive macromonomer, which adds elasticity and crosslinking density. The prepared polymer network can be especially used to coat continuous or singular objects made of fibrous, porous, biomass based or inorganic materials, or as a blending component in these, or used to impregnate these in order to induce water durability, barrier properties, elasticity, coherence or mechanical strength.

    摘要翻译: 本发明的目的是可生物降解的聚合物网络及其制备方法。 聚合物网络由由羟基酸单元组成的交联聚酯树脂,衍生自不饱和双官能单体的结构单元和衍生自多元醇单体的结构单元组成。 聚酯树脂通过多孔致密反应直接生产,然后与高分子量的聚合物交联。聚酯可以与增加柔性的共聚单体共聚,或与反应性大分子单体共混, 这增加了弹性和交联密度。 制备的聚合物网络可以特别用于涂覆由纤维,多孔,生物质基或无机材料制成的连续或单个物体,或作为其中的共混组分,或用于浸渍这些物质,以引起水的耐久性,阻隔性,弹性 ,一致性或机械强度。

    Starch derivatives grafted with aliphatic polyester, procedure for their
production and their use
    3.
    发明授权
    Starch derivatives grafted with aliphatic polyester, procedure for their production and their use 失效
    用脂肪族聚酯接枝的淀粉衍生物,其制备方法及其用途

    公开(公告)号:US5780568A

    公开(公告)日:1998-07-14

    申请号:US716433

    申请日:1996-11-27

    摘要: The invention relates to a procedure, to a grafted starch derivative produced by this procedure and method of using it. In the procedure a starch or starch derivative is graft-copolymerized with a cyclic ester, producing a starch derivative grafted with an aliphatic polyester. The procedure can be implemented as mass polymerization without the use of a solvent or other medium. The grafted starch derivative produced can be used as a component in hot-melt adhesives and as an impermeable coating for paper and cardboard.

    摘要翻译: PCT No.PCT / FI95 / 00148 Sec。 371日期:1996年11月27日 102(e)日期1996年11月27日PCT 1995年3月21日PCT PCT。 WO95 / 25750 PCT公开 日期1995年9月28日本发明涉及通过该方法制备的接枝淀粉衍生物及其使用方法。 在该方法中,淀粉或淀粉衍生物与环酯接枝共聚,产生用脂族聚酯接枝的淀粉衍生物。 该方法可以在不使用溶剂或其它介质的情况下实施为大规模聚合。 所生产的接枝淀粉衍生物可用作热熔粘合剂中的组分,也可用作纸和纸板的不渗透涂料。

    Novel Biodegradable Polymer
    4.
    发明申请
    Novel Biodegradable Polymer 有权
    新型生物降解聚合物

    公开(公告)号:US20090176943A1

    公开(公告)日:2009-07-09

    申请号:US12223284

    申请日:2007-01-26

    IPC分类号: C08G63/91

    摘要: The present invention relates to new biodegradable polymers. These polymers comprise biodegradable polyester-based prepolymers, to which ring-structured anhydrides which have different hydrophobicities have been connected, and which are either coupled to form linear thermoplastic polyester anhydrides or cross-linked to form network-structured polyester anhydrides. It is possible to adjust widely the degradation rate and mechanism of the polymers according to the present invention, and thus they can be used, for example, in the controlled dosing of pharmaceutical ingredients, for tissue technological applications, in surgery and in bioactive composites.

    摘要翻译: 本发明涉及新的可生物降解的聚合物。 这些聚合物包括可生物降解的聚酯基预聚物,已经连接具有不同疏水性的环状结构酸酐,并且它们被偶联形成线性热塑性聚酯酸酐或交联以形成网状结构的聚酯酸酐。 可以广泛地调节根据本发明的聚合物的降解速率和机理,因此它们可以用于例如药物成分的控制剂量,组织技术应用,手术和生物活性复合材料中。

    Method of Modifying the Printing Surface of Paper or Board
    5.
    发明申请
    Method of Modifying the Printing Surface of Paper or Board 有权
    修改纸张或纸板印刷面的方法

    公开(公告)号:US20090255641A1

    公开(公告)日:2009-10-15

    申请号:US12085665

    申请日:2006-12-01

    摘要: A method of modifying the surface of a substrate which comprises a fibrous material. According to the present invention, the surface is brought into contact with a type of amphiphilic block copolymer which comprises one or several hydrophilic polymeric blocks and one or several hydrophobic polymeric blocks. Approximately 0.01-3 g/m2 of the amphiphilic block copolymer are applied onto the surface. With the help of the present invention, it is possible to effectively modify the surface of paper in such a manner that it produces a good surface for printing, for instance for ink-jet printing.

    摘要翻译: 一种改变包括纤维材料的基材表面的方法。 根据本发明,使表面与包含一个或几个亲水性聚合物嵌段和一个或几个疏水性聚合物嵌段的一类两亲性嵌段共聚物接触。 将大约0.01-3g / m 2的两亲嵌段共聚物施加到表面上。 在本发明的帮助下,可以有效地改变纸张的表面,使其产生用于打印的良好表面,例如用于喷墨打印。

    Crosslinkable Biopolymer
    6.
    发明申请
    Crosslinkable Biopolymer 有权
    可交联的生物聚合物

    公开(公告)号:US20080004369A1

    公开(公告)日:2008-01-03

    申请号:US11667929

    申请日:2005-11-03

    申请人: Jukka Seppala

    发明人: Jukka Seppala

    摘要: The invention discloses composition, prepolymer and method to produce a polymer based on biodegradabler or essentially renewable crude materials, which can be crosslinked by free radicals. Composition is based on polyesters that are functionalised with unsaturated monomer units, in a way that unsaturated groups can be located along the polymer main chain as well as at the ends of the prepolymer. In connection to the product production, the prepolymer shall be exposed to free radicals that leads to network formation. The composition of the crosslinked biopolymer can be adjusted from a stiff engineering material to an elastic rubbery material. The new biopolymer can be used in composite materials, dispersions, barrier materials, rubbery materials, and in biomedical applications to mention a few possible application areas.

    摘要翻译: 本发明公开了基于可生物降解或基本上可再生的粗物质制备聚合物的组合物,预聚物和方法,其可以通过自由基交联。 组合物基于以不饱和单体单元官能化的聚酯,其方式是不饱和基团可以沿聚合物主链以及预聚物的末端位置。 关于产品生产,预聚物应暴露于导致网络形成的自由基。 交联的生物聚合物的组成可以从刚性工程材料调整到弹性橡胶材料。 新的生物聚合物可用于复合材料,分散体,阻隔材料,橡胶材料和生物医学应用中,以提及几个可能的应用领域。

    Biologically active material
    7.
    发明申请
    Biologically active material 审中-公开
    生物活性物质

    公开(公告)号:US20070135532A1

    公开(公告)日:2007-06-14

    申请号:US11655145

    申请日:2007-01-19

    IPC分类号: A61L24/00

    摘要: The invention relates to a heterophasic composition which essentially consists of three immiscible components, A, B and C, and the production method of the same. The component A is some body compatible polymer, the component B is a water soluble or hydrolytically degradable substance which produces cavities or network like porosity after disappearing through solubilization or degradation, and a bioactive substance C which at least component B contains in form of particles as a blend component and which still exists in the pores or their walls after the degradation or solubilization of the component B. The materials according to the invention are biocommpatible, solid in normal temperatures, mechanically processable, and thermally mouldable as well as bioactive in the sense that they have the capability to renew different kinds of tissues in the body, on the surface of the living organisms, in the cavities of the body and in the tissue engineering conditions outside the body, and that they can be used in tissue engineering , in tissue regeneration, in healing of damaged or lacking tissues, in tissue guiding when treating deficiencies, in controlled drug release, in the treatment methods of dentistry, in orthopedics and in plastic surgery.

    摘要翻译: 本发明涉及基本上由三种不混溶组分A,B和C组成的多相组合物及其制备方法。 组分A是一些身体相容的聚合物,组分B是水溶性或水解可降解物质,其通过溶解或降解消失后产生空洞或网状似孔隙,以及生物活性物质C,至少组分B含有颗粒形式 共混组分,并且在组分B的降解或溶解之后仍然存在于孔或其壁中。根据本发明的材料是生物相容性的,在常温下为固体,可机械加工和热可模制以及在此意义上的生物活性 它们具有在体内,生物体的表面,身体的空腔和身体外的组织工程条件下更新不同种类的组织的能力,并且它们可以用于组织工程, 组织再生,损伤或缺乏组织的愈合,在治疗缺陷时的组织导向,控制中 领导药物释放,牙科治疗方法,骨科和整形手术。