METHOD OF PRODUCING MICROFIBRILLATED CELLULOSE
    23.
    发明申请
    METHOD OF PRODUCING MICROFIBRILLATED CELLULOSE 审中-公开
    生产微晶纤维素的方法

    公开(公告)号:US20150337493A1

    公开(公告)日:2015-11-26

    申请号:US14758708

    申请日:2013-12-30

    Applicant: Stora Enso OYJ

    Abstract: The invention relates to methods of producing microfibrillated cellulose (MFC). According to the invention a fibrous pulp suspension is fibrillated mechanically at a consistency of less than 12.5%, dewatered to raise the consistency of the fibrillated suspension to at least 12.5%, and then subjected in the dewatered condition to further fibrillation. Alternatively an initially fibrillated fibrous pulp suspension may be dewatered and fibrillated in the dewatered condition, after which these dewatering and fibrillating steps are repeated one or more times so that pulp consistency is increased for each fibrillation step. The goals of raising the consistency between subsequent fibrillations are energy saving and an increased aspect ratio in MFC. The invention even comprises uses of the MFC product, e.g. as an additive for papermaking furnish or injection molded plastic composites.

    Abstract translation: 本发明涉及微纤化纤维素(MFC)的制造方法。 根据本发明,纤维纸浆悬浮液以小于12.5%的稠度机械原纤化,脱水以将原纤化悬浮液的稠度提高至至少12.5%,然后在脱水条件下进一步原纤化。 或者,最初原纤化的纤维纸浆悬浮液可以在脱水条件下脱水和原纤化,之后将这些脱水和原纤化步骤重复一次或多次,以使每个原纤化步骤的纸浆稠度增加。 提高后续原纤化之间的一致性的目标是在MFC中节能和增加的纵横比。 本发明甚至包括MFC产品的用途,例如, 作为造纸配料或注塑塑料复合材料的添加剂。

    RESORBABLE CELLULOSE BASED BIOMATERIAL AND IMPLANT
    27.
    发明申请
    RESORBABLE CELLULOSE BASED BIOMATERIAL AND IMPLANT 审中-公开
    可回收的纤维素基生物材料和植入物

    公开(公告)号:US20150266978A1

    公开(公告)日:2015-09-24

    申请号:US14735591

    申请日:2015-06-10

    Abstract: The present disclosure describes an implant for tissue replacement or augmentation including a resorbable non-pyrogenic porous body of irradiated oxidized cellulose, formed from a precursor reactive mixture of irradiated cellulose and an oxidizing agent, where the body forms a heterogeneous three-dimensional fibrillar network. Also disclosed is a method for producing a body of oxidized cellulose including irradiating a body of cellulose to form an irradiated body of cellulose, and reacting the irradiated body of cellulose with an oxidizing agent to form a non-pyrogenic porous and resorbable body of oxidized cellulose.

    Abstract translation: 本公开描述了用于组织置换或增大的植入物,其包括由照射的纤维素和氧化剂的前体反应性混合物形成的辐照的氧化纤维素的可再吸收非致热性多孔体,其中身体形成异质三维原纤维网。 还公开了一种生产氧化纤维素体的方法,包括照射纤维素体以形成辐射体的纤维素,并使纤维素的照射体与氧化剂反应,形成非热解多孔和可再吸收的氧化纤维素体 。

    RESORBABLE OXIDIZED CELLULOSE EMBOLIZATION SOLUTION
    28.
    发明申请
    RESORBABLE OXIDIZED CELLULOSE EMBOLIZATION SOLUTION 有权
    可再生氧化纤维素嵌段溶液

    公开(公告)号:US20150224133A1

    公开(公告)日:2015-08-13

    申请号:US14694112

    申请日:2015-04-23

    Applicant: Covidien LP

    Abstract: A method for forming an embolism within a blood vessel is disclosed. The method includes including: implanting an oxidized cellulose embolization solution into a lumen of a blood vessel to form an embolism within the lumen. The oxidized cellulose is present in an amount from about 10% by weight to 20% by weight of the oxidized cellulose embolization solution. The method also includes adjusting recanalization time of the embolism, which may be adjusted by tailoring a degradation rate of the oxidized cellulose.

    Abstract translation: 公开了一种在血管内形成栓塞的方法。 该方法包括:将氧化的纤维素栓塞溶液植入血管的内腔,以在内腔内形成栓塞。 氧化纤维素以氧化纤维素栓塞溶液的约10重量%至20重量%的量存在。 该方法还包括调节栓塞的再通时间,其可以通过调节氧化纤维素的降解速率来调节。

    HAEMOSTATIC PATCH AND METHOD OF PREPARATION
    29.
    发明申请
    HAEMOSTATIC PATCH AND METHOD OF PREPARATION 有权
    HAEMOSTATIC PATCH和制备方法

    公开(公告)号:US20150202342A1

    公开(公告)日:2015-07-23

    申请号:US14421200

    申请日:2013-09-25

    Abstract: The present invention relates to a haemostatic patch comprising a porous layer based on oxidized cellulose and a neutralized film based on chitosan, said film comprising a free face and a face fixed on one of the faces of the porous layer, and to the method of preparing said patch comprising the following steps:—a°) preparing a porous layer based on oxidized cellulose,—b°) preparing a film based on chitosan starting from an acidic aqueous solution of chitosan,—c°) fixing the film obtained in b°) on one face of the porous layer,—d°) neutralizing the film obtained in b°),—where step c°) can be carried out before or after step d°), characterized in that: the neutralizing step d°) comprises treatment of said film with a neutralizing composition comprising at least ethanol and ammonium hydroxide (NH4OH).

    Abstract translation: 本发明涉及一种止血贴片,其包括基于氧化纤维素的多孔层和基于壳聚糖的中和膜,所述膜包括固定在多孔层的一个表面上的自由面和面,以及制备方法 所述贴片包括以下步骤:-a°)基于氧化纤维素制备多孔层,-b°)从壳聚糖的酸性水溶液制备基于壳聚糖的膜,-c°)将以b°获得的膜定影 )在步骤d°)之前或之后进行步骤c°),其特征在于:中和步骤d°)在多孔层的一个表面上,-d°)中和B) 包括用至少包含乙醇和氢氧化铵(NH 4 OH)的中和组合物处理所述膜。

Patent Agency Ranking