DISPERSIBLE NONWOVEN
    2.
    发明申请
    DISPERSIBLE NONWOVEN 有权
    不寻常的非诺

    公开(公告)号:US20150044375A1

    公开(公告)日:2015-02-12

    申请号:US14386352

    申请日:2013-04-03

    摘要: A method for forming a dispersible nonwoven substrate in an aqueous medium including: a) forming an aqueous nonwoven binder including a selected emulsion polymer wherein the polymer has been modified with a compound comprising a tri-substituted N-atom, the compound having a pKb of from 4 to 7; b) contacting a nonwoven substrate with the aqueous nonwoven binder; c) heating the contacted nonwoven to a temperature of from 120° C. to 220° C.; and d) immersing the contacted heated nonwoven in an aqueous medium having a final pH

    摘要翻译: 一种在水性介质中形成可分散非织造基材的方法,包括:a)形成含有选择的乳液聚合物的水性非织造粘合剂,其中所述聚合物已经用包含三取代的N-原子的化合物进行了改性,所述化合物的pKb为 从4到7; b)使非织造基材与水性非织造粘合剂接触; c)将接触的非织造材料加热至120℃至220℃的温度; 和d)将接触的加热非织造织物浸入最终pH <5的水性介质中。 还提供了通过前述方法形成的水性介质中的可分散非织造基材和在水性介质中提供分散的非织造布的方法。

    FAST DISINTEGRATING NONWOVEN BINDER
    4.
    发明申请

    公开(公告)号:US20170247824A1

    公开(公告)日:2017-08-31

    申请号:US15505200

    申请日:2015-08-19

    摘要: A method for forming a dispersible nonwoven substrate in an aqueous medium comprising, consisting of, or consisting essentially of contacting a fibrous substrate with an aqueous nonwoven binder comprising an emulsion polymer having a polydispersity index of at least 10, a weight average molecular weight of less than 1,000,000 and from 8 weight percent to 22 weight percent acid monomer, based on the weight of the emulsion polymer, is disclosed. The aqueous nonwoven binder can be prepared by a method comprising the steps of: a) emulsion polymerizing at least one mono-ethylenically unsaturated monomer and at least one acid monomer in an aqueous solution using an initiator wherein the initiator is present in the aqueous solution in an amount in the range of from 0.5 weight percent to 1.5 weight percent, based on the total weight of the monomers, to form the emulsion polymer; and b) neutralizing the emulsion polymer with a neutralizer selected from the group consisting of an amine having a pKb of 4 to 7, an alkali hydroxide, and combinations thereof to form the aqueous nonwoven binder. The dispersible nonwoven substrates can be used to produce dispersible wipes, such as baby wipes, personal care wipes, cleaning wipes, or any other wet nonwoven containing lotion having a pH of below 5 or 6.