Amine-oxides
    3.
    发明授权
    Amine-oxides 失效
    胺氧化物

    公开(公告)号:US5409532A

    公开(公告)日:1995-04-25

    申请号:US7167

    申请日:1993-01-21

    CPC分类号: C07C291/04

    摘要: Amine-oxides of the general formula: ##STR1## wherein R.sub.1 and R.sub.2 are alkyl groups with 1 to 4 C-atoms, R.sub.3 is hydrogen, a hydroxyl group or an alkoxy group with 1 to 4 C-atoms and m and n are whole numbers which fulfil the conditions 1.ltoreq.m.ltoreq.8 and 0.ltoreq.n.ltoreq.4 respectively, with the proviso that n is not 0 if R.sub.3 is a hydroxyl group or an alkoxy group, can be used with advantage for the preparation of mouldable or spinnable cellulose solutions which have a reduced tendency to crystallise.

    摘要翻译: 具有以下通式的胺氧化物:其中R 1和R 2是具有1至4个C原子的烷基,R 3是氢,羟基或具有1至4个C原子的烷氧基,m和 n是分别满足条件1

    Process and arrangement for preparing a solution of cellulose
    6.
    发明授权
    Process and arrangement for preparing a solution of cellulose 失效
    制备纤维素溶液的方法和布置

    公开(公告)号:US5094690A

    公开(公告)日:1992-03-10

    申请号:US742093

    申请日:1991-08-02

    摘要: There is disclosed a process for preparing solutions of cellulose in aqueous tertiary amine oxides from a suspension of cellulose in an aqueous solution of the tertiary amine oxide by supplying heat at a reduced pressure. The suspension is transported over a heating surface, spread in layers or coats, until a homogenous solution of the cellulose has formed, which has a viscosity of between 50 and 15,000 Pas.s. Feeding of the suspension and drawing-off of the homogenous solution are carried out continuously. The solutions are prepared in an indirectly heated evacuatable vessel provided with a stirring device. The vessel is designed as a cylindrical container including a centrically mounted stirring shaft having agitators joined thereto, the radial distance of the agitators from the internal wall of the container being 20 mm at the most. There are provided an intake for the cellulose suspension in the upper part of the container and an outlet for the homogenous collulose solution in its lower end.

    摘要翻译: 公开了一种通过在减压下供应热量来从纤维素悬浮液中制备纤维素在叔胺氧化物的水溶液中的水溶液的叔胺氧化物溶液的方法。 悬浮液在加热表面上运输,分层或涂层,直到形成均匀的纤维素溶液,其粘度为50至15,000Pa.s. 连续进行悬浮液的供给和均匀溶液的抽出。 溶液在配有搅拌装置的间接加热的可抽空容器中制备。 容器设计为圆柱形容器,其包括具有与其连接的搅拌器的中心安装的搅拌轴,搅拌器与容器的内壁的径向距离最大为20mm。 在容器的上部提供纤维素悬浮液的入口和其下端的均匀的纤维素溶液的出口。

    Blanket, in particular quilt
    7.
    发明申请
    Blanket, in particular quilt 审中-公开
    毯子,特别是被子

    公开(公告)号:US20060035053A1

    公开(公告)日:2006-02-16

    申请号:US11080332

    申请日:2005-03-15

    IPC分类号: B32B1/04 D04H13/00 D04H1/46

    摘要: A textile, in particular a blanket, preferably a quilt, comprises a bulky filling (2) embedded in a cover (1). In order to make sure that such a textile exhibits a good thermal insulation, a high moisture transit and good recyclability at low costs, both the cover (1) and the filling (2) comprise Lyocell fibres, with the cover (1) being shaped as a fleece and the filling (2) being shaped as a high-loft fleece or as fibre balls or as Lyocell fibres introduced, as if blown, into the cover (1).

    摘要翻译: 纺织品,特别是毯子,优选被子,包括嵌入盖子(1)中的大块填料(2)。 为了确保这种纺织品具有良好的隔热性,高水分转运性和低成本的良好的可再循环性,盖(1)和填充物(2)都包括莱赛尔纤维,其中盖(1)成形 作为羊毛,并且填充物(2)被形成为高绒毛或纤维球,或者如同引入的Lyocell纤维一样被吹塑成盖(1)。

    Process and arrangement for preparing a solution of cellulose
    8.
    发明授权
    Process and arrangement for preparing a solution of cellulose 失效
    制备纤维素溶液的方法和布置

    公开(公告)号:US5330567A

    公开(公告)日:1994-07-19

    申请号:US998774

    申请日:1992-10-28

    摘要: There is disclosed a process for preparing solutions of cellulose in aqueous tertiary amine oxides from a suspension of cellulose in an aqueous solution of the tertiary amine oxide by supplying heat at a reduced pressure. The suspension is transported over a heating surface, spread in layers or coats, until a homogenous solution of the cellulose has formed, which has a viscosity of between 50 and 15,000 Pas.s. Feeding of the suspension and drawing-off of the homogenous solution are carried out continuously. The solutions are prepared in an indirectly heated evacuatable vessel provided with a stirring device. The vessel is designed as a cylindrical container including a centrically mounted stirring shaft having agitators joined thereto, the radial distance of the agitators from the internal wall of the container being 20 mm at the most. There are provided an intake for the cellulose suspension in the upper part of the container and an outlet for the homogenous cellulose solution in its lower end.

    摘要翻译: 公开了一种通过在减压下供应热量来从纤维素悬浮液中制备纤维素在叔胺氧化物的水溶液中的水溶液的叔胺氧化物溶液的方法。 悬浮液在加热表面上运输,分层或涂层,直到形成均匀的纤维素溶液,其粘度为50至15,000Pa.s. 连续进行悬浮液的供给和均匀溶液的抽出。 溶液在配有搅拌装置的间接加热的可抽空容器中制备。 容器设计为圆柱形容器,其包括具有与其连接的搅拌器的中心安装的搅拌轴,搅拌器与容器的内壁的径向距离最大为20mm。 在容器的上部提供纤维素悬浮液的入口和其下端的均匀纤维素溶液的出口。

    Method of removing amines
    10.
    发明授权
    Method of removing amines 失效
    去除胺的方法

    公开(公告)号:US5043075A

    公开(公告)日:1991-08-27

    申请号:US528578

    申请日:1990-05-24

    CPC分类号: C02F1/42 B01J39/046

    摘要: There is disclosed a method of removing amines from aqueous solutions thereof, in particular from waste waters obtained in cellulose processing. The aqueous amine solutions are contacted with a cation exchanger whose anchor groups consist of carboxyl groups, in order to charge the cation exchanger with the amines. The charged cation exchanger is treated with an aqueous solution of a weak acid having a pK.sub.a larger than 3.0 in order to elute the amines. The eluate is processed by way of distillation, wherein a portion of the weak acid is separated from the amines and reclaimed, if desired.The method according to the invention offers a simple and cheap way of disposing amine-containing waste waters.

    摘要翻译: 公开了从其水溶液,特别是从纤维素处理中获得的废水中除去胺的方法。 胺水溶液与其锚定基团由羧基组成的阳离子交换剂接触,以便用胺向阳离子交换剂充电。 带电阳离子交换剂用pKa大于3.0的弱酸水溶液处理以洗脱胺。 洗脱液通过蒸馏处理,其中一部分弱酸与胺分离,如果需要,回收。 根据本发明的方法提供了一种简单且便宜的处理含胺废水的方法。