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公开(公告)号：US20220195671A1
公开(公告)日：2022-06-23
申请号：US17689041
申请日：2022-03-08
申请人： WestRock MWV, LLC
发明人： Jiebin Pang , Natasha G. Melton , Steven Parker , Teresa Krug
IPC分类号： D21H19/84 , D21H11/04 , D21H19/38 , D21H19/40 , D21H19/60 , D21H19/72 , D21H19/82 , D21H23/22 , D21H21/16 , D21H19/56
摘要： A paperboard structure that includes a paperboard substrate which includes a first major side and a second major side along with at least one barrier coating layer on the first major side. The barrier coating layer(s) may include a binder and a pigment, wherein the binder has a glass transition temperature of at least 20° C., wherein a ratio of the binder to the pigment is at least about 1:2 by weight.
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公开(公告)号：US20220074139A1
公开(公告)日：2022-03-10
申请号：US17469262
申请日：2021-09-08
申请人： WestRock MWV, LLC
摘要： A pulping method includes chemical cooking of softwood chips to retain a high lignin content of about 18% to about 28% by weight and fiberization of the cooked softwood chips to a low residual wood shive content of at most 15% by weight.
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公开(公告)号：US11255050B2
公开(公告)日：2022-02-22
申请号：US16937098
申请日：2020-07-23
申请人： WestRock MWV, LLC
IPC分类号： D21H27/10 , B32B27/08 , B32B27/20 , B32B27/32 , D21H27/18 , D21H19/22 , D21H19/38 , D21H19/82 , B32B27/10 , D21H19/20 , D21H27/30 , B32B29/00 , B32B27/18 , D21H19/58
摘要： A coating for paperboard includes polyethylene outer layers and a polyethylene inner layer with calcium carbonate filler. In addition to the lower cost, benefits include a surprising better heat sealing behavior compared with a coating of polyethylene alone.
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公开(公告)号：US20210387792A1
公开(公告)日：2021-12-16
申请号：US17291825
申请日：2019-11-06
申请人： WestRock MWV, LLC
发明人： Marty Jones , James D. Knotts
摘要： A packaging assembly that includes a carton and an inner member. The carton includes a first flap located within an inner portion thereof. The inner member is configured to be received in the inner portion of the carton. The inner member has an extension that is configured to engage the first flap to restrict the inner member from being separated from the carton. The free end of the first flap includes a cutout.
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公开(公告)号：US11174063B2
公开(公告)日：2021-11-16
申请号：US16391548
申请日：2019-04-23
申请人： WestRock MWV, LLC
IPC分类号： B65D3/06 , B31B50/16 , B31B50/59 , B31B50/74 , B65D3/14 , B65D65/42 , B31B105/00 , B31B110/10
摘要： A method of manufacturing a coated paperboard container includes: providing a coated paperboard bottom blank, the coated paperboard bottom blank comprising a paperboard substrate and a first barrier coating layer on a first outermost surface of the paperboard substrate; heating the coated paperboard bottom blank; shaping the heated coated paperboard bottom blank, thereby forming a peripheral skirt portion about a periphery of a bottom wall portion of the coated paperboard bottom blank; and sealing a coated paperboard sidewall to the first barrier coating layer of the peripheral skirt portion.
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96.发明申请公开(公告)号：US20210323265A1
公开(公告)日：2021-10-21
申请号：US17236116
申请日：2021-04-21
申请人： Westrock MWV, LLC
摘要： A cellulosic structure includes a cellulosic substrate having a first major side and a second major side and a first barrier layer on the first major side of the cellulosic substrate. The first barrier layer has a plurality of perforations therethrough.
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公开(公告)号：US20210323260A1
公开(公告)日：2021-10-21
申请号：US17359148
申请日：2021-06-25
申请人： WestRock MWV, LLC
摘要： A primary package (10; 110; 210; 310;510; 610; 810) for being lockably received in an outer sleeve (700), the primary package comprising a main body panel (12; 112; 212; 312; 512; 612; 812) and a retention tab (14; 114; 214; 314; 512; 612; 812) hingedly connected together along a fold line (17; 117; 217; 317; 517; 617; 817), the retention tab having at least one embossment (18; 118; 218; 318; 518; 618; 818), the fold line having been integrally formed in the primary package.
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公开(公告)号：US20210164163A1
公开(公告)日：2021-06-03
申请号：US15734283
申请日：2019-06-12
申请人： WestRock MWV, LLC
摘要： A coated paperboard including a single-ply paperboard substrate having a first major side and a second major side, and having an internal sizing agent incorporated therein, and a barrier coating on the first major side of the single-ply paperboard substrate, the barrier coating having an elastic modulus of at least 1.5 GPa.
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公开(公告)号：US10975520B2
公开(公告)日：2021-04-13
申请号：US16043472
申请日：2018-07-24
申请人： WestRock MWV, LLC
IPC分类号： D21C3/02 , D21B1/16 , D21C9/00 , D21H11/20 , D21H21/18 , D21H27/30 , D21H27/38 , D21H11/04 , D21H11/08 , D21H17/67 , D21H21/32
摘要： The present disclosure relates to producing paper or paperboard having improved stiffness and strength, compared to the conventional paperboard at the same basis weight. It also discloses a method of wood pulping having a significantly increased yield and providing fiber pulps with enhanced properties such as strength and stiffness. Wood chips are chemically pulped to a high kappa number, providing a rejects component and an accepts component. The rejects component is subjected to a substantially mechanical pulping process, optionally in a presence of bleaching agent, prior to blending back into the accepts component. The resulting fiber blend is washed, optionally bleached, and subjected to a papermaking process to provide paper or paperboard with enhanced strength and stiffness at low basis weight.
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公开(公告)号：US10704200B2
公开(公告)日：2020-07-07
申请号：US15814548
申请日：2017-11-16
申请人： WestRock MWV, LLC
发明人： Jiebin Pang , Scott J. Reigel , Natasha G. Melton , Terry Clark , Teresa Krug , Steven Parker
IPC分类号： D21H21/14 , D21H21/16 , D21H19/36 , D21H19/38 , D21H19/58 , D21H19/64 , D21H19/82 , D21H27/10
摘要： A coated paperboard is disclosed which includes a barrier coating containing substantially no fluorochemical or wax, exhibiting good resistance to oil, grease, and moisture and having no tendency toward blocking.
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