POROUS CELLULOSIC MATERIALS AND PROCESS FOR THEIR PREPARATION
    34.
    发明公开
    POROUS CELLULOSIC MATERIALS AND PROCESS FOR THEIR PREPARATION 有权
    PORÖSECELLULOSEMATERIALIEN UND VERFAHREN ZU DEREN HERSTELLUNG

    公开(公告)号:EP3060603A1

    公开(公告)日:2016-08-31

    申请号:EP15798007.9

    申请日:2015-11-17

    Abstract: The invention relates to a process for preparing a cellulosic sponge comprising treating an aqueous suspension of cellulose fibers with periodate; adjusting the pH of the resulting dialdehyde cellulose fibers suspension to 2.5 to 5.5; freezing the suspension obtained and thawing the three dimensional structure to render the cellulosic sponge. The process may further comprise a step of drying to render a cellulosic foam. Both the new sponge and the new foam of the invention may also be further chemically modified obtaining a broad variety of derivatives with tailored properties which useful in many different applications.

    Abstract translation: 本发明涉及一种制备纤维素海绵的方法,包括用高碘酸盐处理纤维素纤维的水性悬浮液; 将所得二醛纤维素纤维悬浮液的pH调节至2.5至5.5; 冷冻获得的悬浮液并解冻三维结构以使纤维素海绵呈现。 该方法还可以包括干燥以形成纤维素泡沫的步骤。 本发明的新型海绵和新型泡沫体也可以进一步化学改性,获得具有适用于许多不同应用的定制性能的多种衍生物。

    VERFAHREN ZUR HERSTELLUNG VON EXPANDIERTEN THERMOPLASTISCHEN ELASTOMERPARTIKELN
    35.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON EXPANDIERTEN THERMOPLASTISCHEN ELASTOMERPARTIKELN 有权
    VERFAHREN ZUR HERSTELLUNG VON EXPANDIERTEN热塑性弹性体弹性体

    公开(公告)号:EP3055353A1

    公开(公告)日:2016-08-17

    申请号:EP14783597.9

    申请日:2014-10-09

    Applicant: BASF SE

    Abstract: Method for producing expanded thermoplastic elastomer particles, wherein thermoplastic elastomer particles are surrounded by a gaseous medium, said method comprising: a) an impregnation step, wherein the gaseous medium is at an impregnation temperature (T
    a ), the absolute pressure of the gaseous medium is greater than ambient pressure, and wherein a blowing agent is dissolved in the thermoplastic elastomer particles, b) an expansion step, wherein the thermoplastic elastomer particles are exposed to a pressure reduction at a first expansion temperature (T
    b ) and expand, and c) optionally, a welding step, wherein the expanded thermoplastic elastomer particles are welded to one another at a welding temperature (T
    c ) to form at least one shaped part, and wherein the thermoplastic elastomer particles are composed of amorphous thermoplastic elastomer or partially crystalline thermoplastic elastomer or mixtures thereof, the impregnation temperature (T
    a ), the first expansion temperature (T
    b ) and the welding temperature (T
    c ) depend on the type of thermoplastic elastomer, and i) if the thermoplastic elastomer is amorphous, are higher than a first limit temperature (T
    G-40 ), wherein the first limit temperature (T
    G-40 ) is 40 °C below the glass transition temperature (T
    G ) according to DIN EN ISO 11357-2:2013-09 of the non-impregnated thermoplastic elastomer particles, ii) if the thermoplastic elastomer is partially crystalline, are higher than the glass transition temperature (T
    G ) according to DIN EN ISO 11357-2:2013-09 of the non-impregnated thermoplastic elastomer particles and are lower than a second limit temperature (T
    S-5 ) which is 5 °C below the melting temperature (T
    S ) according to DIN EN ISO 11357-3:2013-04 of the non-impregnated thermoplastic elastomer particles.

    Abstract translation: 一种生产膨胀热塑性弹性体颗粒的方法,其中热塑性弹性体颗粒被气体介质包围,所述方法包括:a)浸渍步骤,其中气体介质处于浸渍温度(Ta),气体介质的绝对压力为 大于环境压力,并且其中发泡剂溶解在热塑性弹性体颗粒中,b)膨胀步骤,其中热塑性弹性体颗粒在第一膨胀温度(Tb)下暴露于减压并膨胀,以及c)任选地 ,焊接步骤,其中所述发泡热塑性弹性体颗粒在焊接温度(Tc)彼此焊接以形成至少一个成形部件,并且其中所述热塑性弹性体颗粒由无定形热塑性弹性体或部分结晶的热塑性弹性体或混合物 浸渍温度(Ta),第一膨胀温度(Tb)和 焊接温度(Tc)取决于热塑性弹性体的种类,i)如果热塑性弹性体是无定形的,高于第一极限温度(TG-40),其中第一极限温度(TG-40)为40° C低于非浸渍热塑性弹性体颗粒的DIN EN ISO 11357-2:2013-09的玻璃化转变温度(TG),ii)如果热塑性弹性体是部分结晶的,则高于玻璃化转变温度(TG) 根据DIN EN ISO 11357-2:2013-09的非浸渍热塑性弹性体颗粒,并且低于根据DIN EN ISO的熔点温度(TS)低5℃的第二极限温度(TS-5) 11357-3:2013-04的非浸渍热塑性弹性体颗粒。

    COMPOUNDS BASED ON CROSSLINKABLE POLYOLEFINS AND THERMOPLASTIC POLYURETHANES
    38.
    发明公开
    COMPOUNDS BASED ON CROSSLINKABLE POLYOLEFINS AND THERMOPLASTIC POLYURETHANES 审中-公开
    VERBINDUNGEN AUF基于VERNETZBARER POLYOLEFINE在热塑性聚氨酯

    公开(公告)号:EP2998346A1

    公开(公告)日:2016-03-23

    申请号:EP15185908.9

    申请日:2015-09-18

    Inventor: BRUNETTI, Sergio

    Abstract: The invention relates to a compound for the production of high softness and thermal stability crosslinked articles made by injection molding, a process for the production thereof and an article produced with this compound. The compound comprises (a) a crosslinkable polyolefin, such as ethylene vinyl acetates (EVAs); (b) a thermoplastic polyurethane (TPU), polyether or polyester or mixtures thereof containing a plasticizer or not, wherein said TPU containing a plasticizer or not has a softening point determined via DSC lower than 160 °C, preferably lower than 130 °C; (c) a stabilizing polymer preferably selected from LDPE, HDPE, LLDPE, metallocene polyolefins with a melting point lower than 130 °C or mixtures thereof, in particular LDPE; (d) at least one crosslinking agent, in particular a peroxide or the like; (e) at least one foaming agent; and (f) optionally, one or more further additives selected from coagents, foaming agents, lubricants, kickers, fillers, pigments and oils, wherein (i) the weight ratio between crosslinkable polyolefin and TPU without the weight of any plasticizer present corresponds to a range from 100:100 to 100:3, preferably from 100:40 to 100:5, more preferably from 100:40 to 100:10, even more preferably from 100:30 to 100:15; (ii) the hardness of the TPU with or without plasticizer is in the range from 38 to 85 Shore A, preferably lower than 70 Shore A, even more preferably lower than 55 Shore A.

    Abstract translation: 本发明涉及用于生产通过注射成型制备的高柔软度和热稳定性交联物品的化合物,其制备方法和用该化合物制备的制品。 该化合物包括(a)可交联聚烯烃,例如乙烯乙酸乙烯酯(EVAs); (b)含有增塑剂的热塑性聚氨酯(TPU),聚醚或聚酯或其混合物或其混合物,其中所述含有增塑剂的TPU具有通过DSC测定的低于160℃,优选低于130℃的软化点; (c)优选选自LDPE,HDPE,LLDPE,熔点低于130℃的茂金属聚烯烃或其混合物,特别是LDPE的稳定聚合物; (d)至少一种交联剂,特别是过氧化物等; (e)至少一种发泡剂; 和(f)任选的一种或多种另外的添加剂,其选自助剂,起泡剂,润滑剂,踢球者,填料,颜料和油,其中(i)可交联聚烯烃和TPU之间的重量比,而不存在任何增塑剂的重量比对应于 范围为100:100〜100:3,优选为100:40〜100:5,更优选为100:40〜100:10,进一步优选为100:30〜100: (ii)具有或不具有增塑剂的TPU的硬度在38至85肖氏A,优选低于70肖氏A,甚至更优选低于55肖氏A的范围内。

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