Deaerated talc and related methods

    公开(公告)号:US10207933B2

    公开(公告)日:2019-02-19

    申请号:US14761475

    申请日:2014-01-17

    Abstract: A deaerated talc may include micronized, talc powder having a Hegman rating of 4.0 or greater. A deaerated talc may include micronized talc powder having enough cohesive strength for form agglomerations measuring 100 millimeters or less, 75 millimeters or less, or 50 millimeters or less. A deaerated talc product may include a micronized talc powder, and a bag containing the deaerated talc. The micronized talc powder may be deaerated via application of force to the micronized talc powder in at least two directions, including a first direction substantially parallel to the longitudinal direction of the bag and a second direction.

    Method for contaminant removal in paper production
    2.
    发明授权
    Method for contaminant removal in paper production 有权
    纸张生产中污染物去除的方法

    公开(公告)号:US08840761B2

    公开(公告)日:2014-09-23

    申请号:US13156066

    申请日:2011-06-08

    CPC classification number: D21H17/67 D21H17/68 D21H21/02

    Abstract: The present invention relates to a process for controlling deposits in a paper making process, more particularly to a process comprising the use of talc for controlling deposits in a paper making process with talc. One aspect of the invention is contacting talc with a white water stream at one or more locations within the paper making process after separating pulp from a pulp-containing stream and before introducing the re-circulating the white water stream to one or more of a pulper, a thick-stock, a thin-stock, a dilution process, a shower, a storage vessel, a blending process, and a digestor.

    Abstract translation: 本发明涉及一种用于在造纸工艺中控制沉积物的方法,更具体地涉及一种包括使用滑石粉在造纸工艺中用滑石控制沉积物的方法。 本发明的一个方面是在将纸浆从含纸浆流中分离出来之后并且在将白水流重新循环到一个或多个碎浆机之前,在造纸过程中的一个或多个位置处将滑石与白水流接触 浓稠料,稀浆,稀释法,淋浴,储存容器,混合过程和消化器。

    Controlled polymer foaming using a hybrid nucleating agent formed from a mineral and an organic nucleating agent

    公开(公告)号:US11104775B2

    公开(公告)日:2021-08-31

    申请号:US16097379

    申请日:2017-03-22

    Inventor: Neil Treat

    Abstract: This disclosure describes processes for producing polymer foams, and compositions of matter relating to these processes. A process includes the steps of dispersing an organic nucleating agent in a dispersing medium to obtain an additive dispersion, contacting the additive dispersion with a mineral nucleating agent to obtain a hybrid nucleating agent containing the organic nucleating agent localized on at least a portion of a surface of the mineral nucleating agent, and contacting the hybrid nucleating agent with a polymer in the presence of a foaming agent to obtain a polymer foam. A foamed polymer of the present disclosure includes a cellular matrix containing a polymer material, and a mineral matrix of particles containing a hybrid nucleating agent dispersed in the cellular matrix, in which the hybrid nucleating agent contains an organic nucleating agent localized on at least a portion of a surface of an inorganic material.

    FLEXIBLE BULK STORAGE CONTAINER HAVING A DISCHARGE CHUTE
    5.
    发明申请
    FLEXIBLE BULK STORAGE CONTAINER HAVING A DISCHARGE CHUTE 审中-公开
    具有放电灯的柔性储存容器

    公开(公告)号:US20120281932A1

    公开(公告)日:2012-11-08

    申请号:US13511612

    申请日:2010-12-02

    Applicant: Pete Rugheimer

    Inventor: Pete Rugheimer

    CPC classification number: B65D88/1618 B65D88/1668 B65D88/1681 B65D2203/00

    Abstract: The present disclosure relates to a flexible bulk storage container having a selectively openable discharge chute for improved emptying. When loaded, the bulk storage container has substantially flat top and bottom surfaces to facilitate stacking.

    Abstract translation: 本公开涉及具有用于改进排空的可选择性打开的卸料槽的柔性容积储存容器。 当装载时,大容量储存容器具有基本上平坦的顶部和底部表面以便于堆叠。

    Blends of microcrystalline and macrocrystalline talc for reinforcing polymers

    公开(公告)号:US10513614B2

    公开(公告)日:2019-12-24

    申请号:US15324195

    申请日:2015-07-02

    Abstract: A composition may include a first talc having a morphology index less than or equal to about 0.6 and a second talc having a morphology index greater than or equal to about 0.6. The first talc and the second talc may form a talc composition, and the talc composition may have a content ratio of the first talc to the second talc ranging from about 30:70 by weight to about 80:20 by weight. A polymer composition may include a polymer matrix and a filler composition. The filler composition may include a first talc having a morphology index less than or equal to about 0.8 and a second talc having a morphology index greater than or equal to about 0.8. The filler composition may have a content ratio of the first talc to the second talc ranging from about 30:70 by weight to about 80:20 by weight. The first talc may be a microcrystalline talc. The second talc may be a macrocrystalline talc.

    COMPOSITIONS AND METHODS FOR FUSED FILAMENT FABRICATION
    8.
    发明申请
    COMPOSITIONS AND METHODS FOR FUSED FILAMENT FABRICATION 审中-公开
    用于熔融纤维制造的组合物和方法

    公开(公告)号:US20160318249A1

    公开(公告)日:2016-11-03

    申请号:US15039592

    申请日:2014-11-07

    Abstract: A composition for fused filament fabrication may include polylactic acid resin and talc. The composition may range from 50% by weight to 99% by weight polylactic acid resin, and from 7% by weight to 40% by weight talc. The composition may be configured as filaments or pellets adapted to be used in a fused filament fabrication process. A method for generating a resin-based structure may include providing a resin source that may include polylactic acid resin and talc. The resin source may include from 50% by weight to 99% by weight polylactic acid resin, and from 7% by weight to 40% by weight talc. The method may also include heating the resin source to a temperature greater than the melting temperature for semi-crystalline resins or significantly greater than glass transition temperature for amorphous resins, and depositing the heated resin source in a layered manner to form the resin-based structure.

    Abstract translation: 用于熔融长丝制造的组合物可以包括聚乳酸树脂和滑石。 该组合物可以为50重量%至99重量%的聚乳酸树脂,和7重量%至40重量%的滑石。 组合物可以被配置为适于在熔丝生产工艺中使用的长丝或小球。 用于产生树脂基结构的方法可以包括提供可以包括聚乳酸树脂和滑石的树脂源。 树脂源可以包含50重量%至99重量%的聚乳酸树脂,和7重量%至40重量%的滑石。 该方法还可以包括将树脂源加热至对于半结晶树脂的熔融温度大于或高于非晶态树脂的玻璃化转变温度的温度,并且分层沉积加热的树脂源以形成树脂基结构 。

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