USE OF AN ACRYLATE COPOLYMER AS RETENTION AID IN A METHOD OF MAKING A SUBSTRATE COMPRISING CELLULOSIC FIBRES
    67.
    发明申请
    USE OF AN ACRYLATE COPOLYMER AS RETENTION AID IN A METHOD OF MAKING A SUBSTRATE COMPRISING CELLULOSIC FIBRES 审中-公开
    使用丙烯酸酯共聚物作为制备包含纤维素纤维的基材的方法中的保留剂

    公开(公告)号:WO2017121845A1

    公开(公告)日:2017-07-20

    申请号:PCT/EP2017/050656

    申请日:2017-01-13

    CPC classification number: D21H17/34 D21H17/37 D21H21/06 D21H21/10

    Abstract: Method of making a substrate comprising cellulosic fibres such as paper comprising at least steps (a) and (b): (a) providing an aqueous suspension comprising cellulosic fibres; (b) adding to the suspension provided in step (a) an acrylate copolymer containing carboxyl groups or a salt thereof and ester groups; wherein the acrylate copolymer is the polymerization product of monomers at least selected from an acrylic acid ester of general formula I CH 2 =CR 1 -CO 2 R 2 and an acrylic acid of general formula II CH 2 =CR 3 -COOH or a salt thereof, wherein R 1 and R 3 are independently selected from H, CH 3 , or C 2 H 5 ; and R 2 is a C 1-10 alkyl group.

    Abstract translation: (a)和(b)至少包括以下步骤的制造包含纤维素纤维如纸的基材的方法:(a)提供包含纤维素纤维的含水悬浮液; (b)向步骤(a)中提供的悬浮液中加入含有羧基或其盐和酯基的丙烯酸酯共聚物; 其中丙烯酸酯共聚物是至少选自通式I的丙烯酸酯CH 2 = CR 1 -CO 2 2的单体的聚合产物。 R 2和通式II的丙烯酸CH 2 = CR 3 -COOH或其盐,其中R 1 R 3和R 3独立地选自H,CH 3或C 2 H 5; 并且R 2是C 1-10烷基。

    SYSTEM FOR THE REMOVAL OF IRON OXIDE FROM SURFACES
    69.
    发明申请
    SYSTEM FOR THE REMOVAL OF IRON OXIDE FROM SURFACES 审中-公开
    从表面去除氧化铁的系统

    公开(公告)号:WO2014111267A1

    公开(公告)日:2014-07-24

    申请号:PCT/EP2014/000129

    申请日:2014-01-17

    CPC classification number: C11D7/267 C11D7/268 C11D7/36

    Abstract: A system for the removal of heavy metal oxides from surfaces comprises the treatment with a composition comporising at least ethane-1-hydroxy-1,1'diphosphonic acid (HEDP) and water and an organic reducing agent. The invention is also relevant for a process for the removal of iron oxide from textiles or fabrics by treatment with a solution of the composition over a certain time period at a certain temperature in a stirred vessel.

    Abstract translation: 用于从表面去除重金属氧化物的系统包括用至少包含乙烷-1-羟基-1,1'-二膦酸(HEDP)和水和有机还原剂的组合物进行处理。 本发明还涉及通过在一定时间内在搅拌容器中在一定温度下用组合物溶液处理从纺织品或织物中除去氧化铁的方法。

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