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公开(公告)号：US09650742B2
公开(公告)日：2017-05-16
申请号：US14566986
申请日：2014-12-11
CPC分类号： D21C9/083 , C08B37/0057 , C08L5/14 , D21C9/002 , D21C9/004 , D21C9/08 , D21H17/64 , D21H17/74
摘要： A process for making a hydrogel forming material from a kraft or sulfite pulping process cellulosic pulp slurry by extracting hemicellulose heteropolymers from the cellulosic pulp slurry as a hemicaustic extract by treating the cellulosic pulp slurry with a cold caustic solution, then isolating the hemicaustic extract and preparing a mixture of the hemicellulose extract and a derivatizing agent comprised of a monofunctional etherifying agent and/or a polyfunctional organic cross-linking agent, and reacting the mixture to produce the hydrogel forming material. A polyvalent metal cross-linking agent can optionally be reacted with the hydrogel forming material to enhance its gel strength.
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公开(公告)号：US10415189B2
公开(公告)日：2019-09-17
申请号：US16110390
申请日：2018-08-23
摘要： The present invention is directed to a novel polyalkylene glycol based reagent with aldehyde end groups, wherein the preparation of the reagent includes the steps of provide a polyalkylene glycol; provide an aldehyde compound; mix both reagents polyalkylene glycol and aldehyde in 1:2 equivalent; stir the mixture for a certain period of time until a clear solution is obtained, and dilute with water to a desirable concentration.
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公开(公告)号：US10214858B2
公开(公告)日：2019-02-26
申请号：US15486390
申请日：2017-04-13
IPC分类号： D21H21/36 , C07C217/28 , A61L15/28 , C07C213/08 , D21H17/07
摘要： The present invention relates to specialty pulp products produced using bifunctional reagents composed of polymeric chain and end caps. The polymeric chain is preferably a polyalkylene glycol based polymer and the end caps are preferably a cationic quaternary ammonium. The bifunctional reagents are especially useful in making specialty fluff with dual functional properties—easy defiberization and antimicrobial properties. The specialty fluff of the present invention prevents odor by inhibiting bacteria growth and production of organic matters, especially when used in an absorbent article intended for body waste management such as baby diapers and adult incontinence device.
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公开(公告)号：US09382337B2
公开(公告)日：2016-07-05
申请号：US14565029
申请日：2014-12-09
CPC分类号： C08B11/08 , C08B11/20 , C08L1/02 , C08L5/14 , C08L97/005
摘要： A process for making a hydrogel forming material from an unbleached cellulose pulp comprised of isolating pulp fines from the cellulose pulp by screening and/or dissolved air filtration, reacting the isolated pulp fines with alkaline hydroxide to form an alkali cellulose composition, preparing a heterogeneous mixture of the alkali cellulose composition and an etherifying agent, and optionally organic cross-linking agent, and reacting the components of the mixture to produce a hydrogel forming material. A polyvalent metal cross-linking agent can optionally be reacted with the hydrogel forming material to enhance its gel strength.
摘要翻译： 一种从未漂白的纤维素纸浆制备水凝胶形成材料的方法，其包括通过筛选和/或溶解空气过滤从纤维素纸浆中分离纸浆细粉，使分离的纸浆细粉与碱性氢氧化物反应形成碱性纤维素组合物，制备不均匀混合物 的碱性纤维素组合物和醚化剂，以及任选的有机交联剂，并使混合物的组分反应以产生水凝胶形成材料。 多价金属交联剂可任选地与水凝胶形成材料反应以增强其凝胶强度。
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