전분-비닐 공중합체의 제조방법
    33.
    发明授权
    전분-비닐 공중합체의 제조방법 有权
    制备淀粉 - 乙烯共聚物的方法

    公开(公告)号:KR100858544B1

    公开(公告)日:2008-09-12

    申请号:KR1020070025326

    申请日:2007-03-15

    IPC分类号: C08F246/00 C08L3/00

    摘要: A method for preparing starch-vinyl graft copolymer is provided to produce the environment-friendly biodegradable product by enhancing the content of starch, and to solve problems such as a decline in gloss and whiteness of starch-vinyl copolymer. A method for preparing starch-vinyl graft copolymer includes the steps of: (a-1) adding 0.0001-0.5 parts by weight, based on 100 parts by weight of starch, of amylase to an aqueous starch solution, and reacting the admixture at 60-100 °C for 30-360 minutes to prepare an aqueous solution of degraded starch products; (a-2) cooling the aqueous solution of degraded starch products to 25-50 °C, thereto adding a non-ionic surfactant or anionic surfactant and vinyl monomer to prepare a monomer mixture solution having the degraded starch products and vinyl monomer in a weight ratio of 30:70-90:100; and (b) adding a non-ionic surfactant or anionic surfactant and a polymerization initiator to the monomer solution to perform polymerization.

    摘要翻译: 提供了制备淀粉 - 乙烯基接枝共聚物的方法,通过提高淀粉含量来生产环境友好的生物降解产品,并解决了淀粉 - 乙烯基共聚物的光泽和白度下降等问题。 制备淀粉 - 乙烯基接枝共聚物的方法包括以下步骤:(a-1)将基于100重量份的淀粉,淀粉酶的0.0001-0.5重量份添加到淀粉水溶液中,并使混合物在60℃下反应 -100℃30-30分钟,制备淀粉降解产物的水溶液; (a-2)将降解淀粉产物的水溶液冷却至25-50℃,加入非离子表面活性剂或阴离子表面活性剂和乙烯基单体以制备具有降解淀粉产物和乙烯基单体重量的单体混合溶液 比例为30:70-90:100; 和(b)向单体溶液中加入非离子表面活性剂或阴离子表面活性剂和聚合引发剂进行聚合。

    태양 전지 밀봉재
    34.
    发明公开
    태양 전지 밀봉재 有权
    太阳能电池密封材料

    公开(公告)号:KR1020080068944A

    公开(公告)日:2008-07-24

    申请号:KR1020087017205

    申请日:2005-12-27

    IPC分类号: C08L3/00 H01L31/048

    摘要: A solar cell sealing material that facilitates forming of a solar cell module, excelling in transparency, heat resistance, flexibility, etc.; and a solar cell module. In particular, there is provided a solar cell sealing material comprising an amorphous or lowly crystalline alpha-olefin copolymer or composition (I) thereof. As a preferred first form of the copolymer or composition (I) thereof, there can be mentioned resin composition (C) comprising 50 to 100 pts.wt. of amorphous alpha-olefin polymer (A) satisfying the requirements of (a) containing >= 20 mol% of C3-C20 alpha-olefin, (b) having substantially no melting peak by differential scanning calorimeter observed and (c) exhibiting a ratio of Mw/Mn of

    摘要翻译: 太阳能电池密封材料,其有利于太阳能电池模块的形成,透明性,耐热性,柔韧性等优异; 和太阳能电池模块。 特别地,提供了包含无定形或低结晶性α-烯烃共聚物或其组合物(I)的太阳能电池密封材料。 作为共聚物或其组合物(I)的优选的第一种形式,可以提及包含50至100重量份的树脂组合物(C) (a)含有≥20摩尔%的C 3 -C 20α-烯烃的无定形α-烯烃聚合物(A),(b)观察到差示扫描量热计基本上没有熔融峰,(c)表现出比例 的Mw / Mn为<= 5和50至0重量份。 (总计100重量份)的结晶α-烯烃聚合物(B)。 作为优选的第二形式,可以提及其通过X射线测量的结晶度<40%的无定形或低结晶性α-烯烃共聚物(D)。 此外,提供了包括上述太阳能电池密封材料的太阳能电池组件。

    장벽 필름
    35.
    发明公开
    장벽 필름 无效
    屏障胶片

    公开(公告)号:KR1020070088638A

    公开(公告)日:2007-08-29

    申请号:KR1020077011408

    申请日:2005-10-18

    摘要: A barrier composition which is injection mouldable and able to be made into a transparent film or incorporated (by co-extrusion and/or lamination) into multi-layer film products, the composition on dry basis: a) from 45 to 90% by weight of a starch and/or a modified starch selected from starches modified by reaction with a hydroxyl alkyl group, an acetate or a dicarboxylic acid anhydride or a grafting polymer; b) from 4 to 12% by weight of a water soluble polymer selected from polyvinyl alcohol, polyvinylacetate, and copolymers of ethylene and vinylalcohol which have a melting point compatible with the molten state of the starch components c) from 5 to 45% by weight of a non-crystallising mixture of sorbitol and at least one other plasticizer selected from glycerol, maltitol, xylitol, mannitol, glycerol trioleate, epoxidised linseed or soybean oil, tributyl citrate, acetyl tri-ethyl citrate, glyceryl triacetate, 2,2,4-trimethyl-1,3-pentanediol diisobutyrate; polyethylene oxide or polyethylene glycol; d) from 0.3 to 2.5 % by weight of a C12-22 fatty acid or salt; e) from 0.25% to 3% of an emulsifier system having a hydrophilic lipophilic balance value between 2 and 10. The barrier film may be co-injection moulded with polyethylene terephthalate (PET) or polylactic acid (PLA) for blow moulding into beverage bottles, with polyethylene (PE) or polypropylene (PP) or biodegradable polymers for high gas-barrier containers or closures, or may be co-extruded with polyethylene, polypropylene or polylactic acid for thin film packaging applications or for blow-moulded containers.

    摘要翻译: 一种阻隔组合物,其是可注射成型且能够制成透明膜或通过共挤出和/或层压结合到多层膜产品中的组合物,所述组合物以干基计:a)45至90重量% 的淀粉和/或选自通过与羟基烷基,乙酸酯或二羧酸酐或接​​枝聚合物反应改性的淀粉的改性淀粉; b)4至12重量%的选自聚乙烯醇,聚乙酸乙烯酯的水溶性聚合物和乙烯和乙烯醇的共聚物,其具有与淀粉组分的熔融状态相容的熔点c)5至45重量% 的山梨糖醇和至少一种选自甘油,麦芽糖醇,木糖醇,甘露糖醇,甘油三油酸甘油酯,环氧化亚麻籽油或大豆油的其它增塑剂的非结晶混合物,柠檬酸三丁酯,柠檬酸乙酰基三乙酯,柠檬酸甘油酯,2,2,4 - 三甲基-1,3-戊二醇二异丁酸酯; 聚环氧乙烷或聚乙二醇; d)0.3至2.5重量%的C 12-22脂肪酸或盐; e)0.25%至3%的亲水亲油平衡值在2至10之间的乳化剂体系。阻挡膜可以与聚对苯二甲酸乙二醇酯(PET)或聚乳酸(PLA)共注塑成型,用于吹塑成饮料瓶 ,聚乙烯(PE)或聚丙烯(PP)或可生物降解的聚合物,用于高阻隔性容器或封闭物,或可与聚乙烯,聚丙烯或聚乳酸共挤出用于薄膜包装应用或吹塑容器。

    태양 전지 밀봉재
    36.
    发明公开
    태양 전지 밀봉재 有权
    太阳能电池密封材料

    公开(公告)号:KR1020070086626A

    公开(公告)日:2007-08-27

    申请号:KR1020077014418

    申请日:2005-12-27

    IPC分类号: C08L3/00 H01L31/048

    摘要: A solar cell sealing material that facilitates forming of a solar cell module, excelling in transparency, heat resistance, flexibility, etc.; and a solar cell module. In particular, there is provided a solar cell sealing material comprising an amorphous or lowly crystalline E-olefin copolymer or composition (I) thereof. As a preferred first form of the copolymer or composition (I) thereof, there can be mentioned resin composition (C) comprising 50 to 100 pts.wt. of amorphous E-olefin polymer (A) satisfying the requirements of (a) containing >= 20 mol% of C3-C20 E-olefin, (b) having substantially no melting peak by differential scanning calorimeter observed and (c) exhibiting a ratio of Mw/Mn of

    摘要翻译: 太阳能电池密封材料,其有利于太阳能电池模块的形成,透明性,耐热性,柔韧性等优异; 和太阳能电池模块。 特别地,提供了包含无定形或低结晶性的E-烯烃共聚物或其组合物(I)的太阳能电池密封材料。 作为共聚物或其组合物(I)的优选的第一种形式,可以提及包含50至100重量份的树脂组合物(C) 的无定形E-烯烃聚合物(A)满足(a)的要求,(a)含有> = 20摩尔%的C 3 -C 20烯烃,(b)通过差示扫描量热计基本上不含熔融峰,(c) 的Mw / Mn为<= 5和50至0重量份。 (总计100重量份)结晶的E-烯烃聚合物(B)。 作为优选的第二形式,可以提及其通过X射线测量的结晶度<40%的无定形或低结晶的E-烯烃共聚物(D)。 此外,提供了包括上述太阳能电池密封材料的太阳能电池组件。

    전기방사된 케라틴을 함유하는 나노섬유 조성물
    37.
    发明授权
    전기방사된 케라틴을 함유하는 나노섬유 조성물 失效
    전기방사된케라틴을함유하하나노섬유조성물

    公开(公告)号:KR100734057B1

    公开(公告)日:2007-06-29

    申请号:KR1020060032838

    申请日:2006-04-11

    IPC分类号: C08L3/00 C08L89/00 B82Y30/00

    摘要: Provided are a nanofiber containing electro-spun keratin which shows more excellent biocompatibility, biodegradability and wetting property compared with a synthetic resin and more excellent mechanical properties compared with bioproteins, and a method for preparing the nanofiber. The nanofiber contains electro-spun keratin. Preferably the keratin is mixed with PHBV (poly(hydroxybutylate-co-hydroxyvalerate)) in a ratio of 2:8 to 4:6; and the keratin is the S-carboxymethyl keratin prepared by reducing keratin with 2-mercaptoethanol and chemically modifying it with iodoacetic acid. The method comprises the steps of extracting keratin and reducing it with 2-mercaptoethanol; chemically modifying the reduced keratin with iodoacetic acid; mixing the modified keratin with PHBV and electrospinning it; and crosslinking the electro-spun keratin mixture with a crosslinking agent.

    摘要翻译: 本发明提供一种含有电纺角蛋白的纳米纤维,与生物蛋白相比,其显示出比合成树脂更优异的生物相容性,生物降解性和润湿性以及更优异的机械性能,以及制备纳米纤维的方法。 纳米纤维含有电纺角蛋白。 优选角蛋白以2:8至4:6的比例与PHBV(聚(羟基丁酸酯 - 共 - 羟基戊酸酯))混合; 角蛋白是通过用2-巯基乙醇还原角蛋白并用碘乙酸对其进行化学修饰而制备的S-羧甲基角蛋白。 该方法包括提取角蛋白并用2-巯基乙醇将其还原的步骤; 用碘乙酸化学修饰还原角蛋白; 将改性的角蛋白与PHBV混合并静电纺丝; 并将交联剂与电纺角蛋白混合物交联。

    합성주철제 수도관과 합성주철 조성물
    38.
    发明授权
    합성주철제 수도관과 합성주철 조성물 有权
    합성주철제수도관과합성주철조성물

    公开(公告)号:KR100723626B1

    公开(公告)日:2007-06-04

    申请号:KR1020060082606

    申请日:2006-08-30

    申请人: 이종호

    发明人: 이종호

    IPC分类号: C08L27/06 C08L3/00

    摘要: Provided is a water pipe made of cast iron, which has excellent impact resistance as compared with other water pipes made of metals or other synthetic resins, causes no corrosion, and shows high mechanical and physical strength. The water pipe is made of a cast iron composition obtained by agitating 100 parts by weight of a polyvinyl chloride(PVC) resin having an average polymerization degree of 800-1300, 5-50 parts by weight of iron, 3-100 parts by weight of glass fibers for reinforcing the strength of a water pipe, 2-5 parts by weight of a stabilizer for protecting physical properties of PVC and maintaining thermal stability of PVC, 10-15 parts by weight of an impact resistance reinforcing agent for increasing durability of a cured water pipe, and 0.5-2 parts by weight of a dispersant, in a super mixer, and then by pelletizing the resultant mixture with a compound extruder.

    摘要翻译: 提供一种由铸铁制成的水管,与由金属或其他合成树脂制成的其他水管相比,其具有优异的抗冲击性,不会引起腐蚀,并且显示出高的机械强度和物理强度。 水管由通过搅拌100重量份平均聚合度为800-1300的聚氯乙烯(PVC)树脂,5〜50重量份铁,3〜100重量份 用于增强水管强度的玻璃纤维,2-5重量份用于保护PVC物理性能并保持PVC热稳定性的稳定剂,10-15重量份用于提高耐久性的抗冲击增强剂 固化水管和0.5-2重量份分散剂在超级混合器中混合,然后用复合挤出机造粒所得混合物。

    생분해성 유아용 미술재료
    40.
    发明公开
    생분해성 유아용 미술재료 无效
    用于自然微生物分解的小儿童的生物可降解的艺术材料,并提供有效的艺术教育的各种形状和颜色

    公开(公告)号:KR1020040100284A

    公开(公告)日:2004-12-02

    申请号:KR1020030032578

    申请日:2003-05-22

    申请人: 이종언

    发明人: 강범형

    摘要: PURPOSE: Biodegradable art materials for a small child are provided to be effectively decomposed by natural microbes and to obtain various shapes and colors effective for art education for a small child by adhering art materials to each other using an adhesive force of starch without using an adhesive such as glue. CONSTITUTION: Biodegradable art materials for a small child are foaming agents foamed by extruding starch, its derivatives, or their mixture at a certain ratio using an extruder. Starch of high polymer, its derivatives, or their mixture is used as the main raw materials of the art materials. Starch-glycine derivatives are used as the starch derivatives. The starch-glycine derivatives are made by ester reaction between hydroxy of starch and carboxyl group of glycine that is a plasticizer. Glycine of 5% to 15% by weight is preferably added during the ester reaction. One or two kinds selected from corn, potato, tapioca, high amylose, sweet potato, wheat, rice and their denaturalized starch are used as the starch. Examples of the denaturalized starch include oxidation starch, acid-treated starch, ester starch, cross-linked starch, hydroxy alkyl starch, or their transformed starch. Particularly, corn or its derivatives are preferably used as the starch.

    摘要翻译: 目的:为小孩提供生物可降解的艺术材料,使其能够被天然微生物有效地分解,并且通过使用淀粉的粘合力将艺术材料彼此粘合而获得各种各样的形状和颜色,从而为小孩子进行艺术教育,而不使用粘合剂 如胶水。 构成:小孩子的生物可降解艺术材料是使用挤出机以一定比例挤出淀粉,其衍生物或其混合物发泡的发泡剂。 高分子聚合物,其衍生物或其混合物的淀粉被用作艺术材料的主要原料。 淀粉甘氨酸衍生物用作淀粉衍生物。 淀粉 - 甘氨酸衍生物通过淀粉的羟基与作为增塑剂的甘氨酸的羧基之间的酯反应来制备。 优选在酯反应期间加入5重量%至15重量%的甘氨酸。 使用从玉米,马铃薯,木薯,高直链淀粉,甘薯,小麦,稻米及其变性淀粉中选出的一种或两种作为淀粉。 变性淀粉的实例包括氧化淀粉,酸处理淀粉,酯淀粉,交联淀粉,羟基烷基淀粉或其转化淀粉。 特别地,优选使用玉米或其衍生物作为淀粉。