公开(公告)号：US20180320316A1

公开(公告)日：2018-11-08

申请号：US15773667

申请日：2016-12-30

Applicant: ECOLAB USA INC.

Inventor： Yulin ZHAO ,  Chunhao WANG ,  Na XU ,  Jun LI ,  Meng ZHANG

IPC: D21H21/18 ,  D21H17/45 ,  D21H17/37 ,  D21H17/36 ,  D21H17/26 ,  D21H17/43

Abstract: The present disclosure relates to a dry strength agent composition, use of an amine-containing cationic polymer for enhancing the dry strength of paper, and a method for enhancing the dry strength of paper. The dry strength agent composition includes at least two components. The first component is an amine-containing cationic polymer and the second component may be one or more anionic or amphoteric polymers.

公开(公告)号：US20160107103A1

公开(公告)日：2016-04-21

申请号：US14786501

申请日：2014-04-23

Applicant: ECOLAB USA INC.

Inventor： Yanru FAN ,  Yulin ZHAO

IPC: B01D19/04 ,  D21H21/12 ,  D21H17/00

CPC classification number: B01D19/0404 ,  D21H17/74 ,  D21H21/12 ,  B01D19/0409

Abstract: Disclosed are an oil-in-water emulsion defoamer and a method for preparing the defoamer. The defoamer may have a dispersed oil phase with a droplet size of 4 to 8 μm, and a viscosity of 100 to 1000 cP, and is widely used for defoaming in paper coating and wet-end in a paper mill. A method for preparing an oil-in-water emulsion defoamer is also provided. The method may include adding an emulsifying agent to biodiesel, and mixing, then gradually adding hydrophobic fumed silica, to obtain a first mixture. The method may also include gradually adding water and a non-ionic surfactant, and stirring until uniform to obtain a second mixture. The method may also include gradually adding the first mixture to the second mixture, and stirring until uniform, to obtain an oil-in-water emulsion defoamer.

Abstract translation: 公开了一种水包油乳液消泡剂和一种制备消泡剂的方法。 消泡剂可以具有液滴尺寸为4〜8μm，粘度为100〜1000cP的分散油相，广泛用于造纸厂的纸张涂布和湿端的消泡。 还提供了一种制备水包油乳液消泡剂的方法。 该方法可以包括向生物柴油中加入乳化剂，然后混合，然后逐渐加入疏水性热解法二氧化硅，得到第一混合物。 该方法还可以包括逐渐加入水和非离子表面活性剂，并搅拌至均匀以获得第二混合物。 该方法还可以包括将第一混合物逐渐加入到第二混合物中，并搅拌至均匀，得到水包油乳液消泡剂。

公开(公告)号：US20170175333A1

公开(公告)日：2017-06-22

申请号：US15119517

申请日：2015-02-05

Applicant: ECOLAB USA INC.

Inventor： Wenli TU ,  Yumei LU ,  Zhi CHEN ,  Yulin ZHAO

IPC: D21H17/28 ,  D21H11/14 ,  D21H21/36

Abstract: The present invention provides a method for preserving recycled fiber by using biocides and a method for manufacturing paper using recycled fiber. The method for manufacturing paper, using recycled fiber as a raw material, comprises pulping procedure: pulping the raw material containing recycled fiber, and papermaking procedure: producing the paper with the pulp slurry obtained in the pulping procedure; wherein the total starch content of recycled fiber is measured before recycled fiber is pulped, and when the total starch content of recycled fiber is higher than a predetermined value, one or more biocides are added during the pulping procedure.