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1.发明公开公开(公告)号：US20240309208A1
公开(公告)日：2024-09-19
申请号：US18672123
申请日：2024-05-23
发明人： Hirofumi Ono , Kazufumi Kawahara , Ryosuke Ozawa , Masahiro Ohga
CPC分类号： C08L77/06 , C08B3/06 , C08B3/20 , C08J5/06 , C08L1/08 , C08L1/10 , D21H11/18 , D21H11/20 , C08J2377/06 , C08J2401/10
摘要： Provided is a resin composite having high mechanical properties which make the resin composite moldable into and usable as members for use in applications such as vehicle-mounted members and electrical materials. The resin composite comprises 0.5-40 mass % chemically modified, fine cellulose fibers and a resin, wherein the chemically modified, fine cellulose fibers have a pyrolysis initiation temperature (TD) of 270° C. or higher, a number-average fiber diameter of 10 nm or larger but less than 1 μm, and a degree of crystallinity of 60% or higher. In a preferred embodiment, the chemically modified, fine cellulose fibers have a coefficient of variation (CV) in DS unevenness ratio, DSs/DSt, of 50% or less, the DS unevenness ratio being the ratio of the modification degree (DSs) of the surface layers of the fibers to the modification degree (DSt) of the whole of the fibers.
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公开(公告)号：US20220127378A1
公开(公告)日：2022-04-28
申请号：US17431537
申请日：2020-02-11
发明人： Armin STEIN , Jana LUBKOLL
摘要： The invention relates to a method for the acetylation of lignocellulose-containing fibrous materials and to acetylated lignocellulose-containing fibrous materials obtained according to said method, and to the use thereof.
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公开(公告)号：US20210214464A1
公开(公告)日：2021-07-15
申请号：US16967482
申请日：2019-02-05
发明人： Ikko Matsusue , Aya Fujita
摘要： A fibrous cellulose having an excellent resin reinforcing effect, a method for manufacturing the fibrous cellulose, and a resin composition having high strength. The fibrous cellulose is microfiber cellulose having an average fiber diameter of 1 μm or more, and is hydrophobically modified. The method for manufacturing fibrous cellulose includes defibrating raw material fiber to obtain microfiber cellulose with an average fiber diameter of 1 μm or more, and hydrophobically modifying the microfiber cellulose. Further, the resin composition contains the fibrous cellulose and resin.
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公开(公告)号：US11046789B2
公开(公告)日：2021-06-29
申请号：US16733641
申请日：2020-01-03
IPC分类号： D21H17/00 , D21H17/14 , D21H17/24 , C09D191/00 , D21H11/18 , D21H21/16 , D21H17/25 , C08B17/02 , C08B3/20 , C08B3/12 , C08L91/00 , C09D101/14 , C11C3/04
摘要： The present disclosure describes tunable methods of treating cellulosic materials with a composition that provides increased hydrophobicity and/or lipophobicity to such materials without sacrificing the biodegradability thereof. The methods as disclosed provide for binding of saccharide fatty acid esters on cellulosic materials, including that the disclosure provides products made by such methods. The materials thus treated display higher hydrophobicity, lipophobicity, barrier function, and mechanical properties, and may be used in any application where such features are desired.
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公开(公告)号：US11015291B2
公开(公告)日：2021-05-25
申请号：US16085172
申请日：2017-03-16
申请人： KRI, INC.
发明人： Lianzhen Lin , Ayako Maruta , Masanori Hori
IPC分类号： D21C3/20 , D01F2/00 , C08B3/20 , D21H11/18 , C08B3/16 , D21C3/00 , D21C3/04 , D21C9/00 , D21H11/20 , C08B3/02 , C08B1/02
摘要： Provided is a method of producing fine cellulose fibers that are nanosized, that have a high crystallinity degree, and that are less vulnerable to fiber shape damage, the method including impregnating cellulose with a fibrillation solution to fibrillate the cellulose without mechanical crushing, and modifying the cellulose. The method of producing cellulose microfibrils of the present invention includes impregnating cellulose with a fibrillation solution containing a carboxylic acid vinyl ester or an aldehyde and an aprotic solvent having a donor number of 26 or more to fibrillate the cellulose. The aldehyde is at least one kind of aldehyde selected from the group consisting of an aldehyde represented by the following formula (1), paraformaldehyde, cinnamaldehyde, perillaldehyde, vanillin, and glyoxal: R1—CHO (1) where R1 represents a hydrogen atom, an alkyl group having 1 to 16 carbon atoms, an alkenyl group, a cycloalkyl group, or an aryl group.
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公开(公告)号：US20170326753A9
公开(公告)日：2017-11-16
申请号：US14893722
申请日：2014-05-26
发明人： Pirkko Karhunen , Jorma Matikainen , Lasse Kyllonen , Pirjo Ahola , Ilkka Kilpelainen , Alistair W.T. King
IPC分类号： B27K3/34 , C09D15/00 , C09D7/12 , C09D5/18 , A01N57/16 , C08H8/00 , C08B3/20 , C09D5/14 , C09K21/12 , C08K5/5333
CPC分类号： B27K3/346 , A01N57/16 , B27K3/343 , B27K2240/20 , C08B3/20 , C08H8/00 , C08K5/5333 , C09D5/14 , C09D5/18 , C09D7/40 , C09D15/00 , C09K21/12 , A01N43/653 , A01N47/12 , A01N59/14 , A01N59/20
摘要： A method of treating wood with an organic phosphonate salt in a liquid phase to chemically modify its surface and thus provide protection from microorganisms. The organic phosphonate salts are of Formula III wherein R1 is a hydrogen radical or an alkyl or aryl radical having 1 to 20 carbon atoms and R2 is a cation selected from the group of NH4+, H+, Li+, Na+, K+, Rb+, Cs+, Fr+, Cu+, Ag+, substituted or unsubstituted ammonium, phosphonium, and sulfonium, methylpyrrolidinium, isothiazolium, isoxazolium, oxazolium, pyrrolium, thiophenium, pyridinium, pyridazinium, pyrimidinium, pyrazinium, imidazolium, pyrazolium, thiazolium, oxazolium, 1-ethyl-3-methylimidazolium, and triazolium, or a mixture thereof, said method preferably comprising using one or more salt compounds having formula III. Products comprising a raw material having been treated according to the method with one or more organic salts of formula III are also disclosed.
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公开(公告)号：US09079978B2
公开(公告)日：2015-07-14
申请号：US13257435
申请日：2010-03-18
申请人： Jari Räsänen , Tapani Penttinen , Ali Harlin , Jaakko Hiltunen , Hanne Wikberg , Tekla Tammelin
发明人： Jari Räsänen , Tapani Penttinen , Ali Harlin , Jaakko Hiltunen , Hanne Wikberg , Tekla Tammelin
摘要： The invention relates to a method of treating chemical pulp fibers by a polymerizing hydroxy acid, the fibers thus obtained and the products refined from them. In the method, the hydroxy acid reacts with the reactive groups of the fibers in the presence of a catalyst, forming ester bonds. The following units of the same hydroxy acid are oligomerized and/or polymerized to these grafted acid residues. The fibers thus treated and the products refined thereof endure better processing stages that include drawing and stretching than untreated fibers.
摘要翻译： 本发明涉及一种通过聚合羟基酸，如此获得的纤维和从其中精炼的产品来处理化学纸浆纤维的方法。 在该方法中，羟基酸在催化剂存在下与纤维的反应性基团反应，形成酯键。 以下相同羟基酸的单元被低聚和/或聚合到这些接枝的酸残基。 如此处理的纤维和其精制产品具有比未处理的纤维更好的加工阶段，包括拉伸和拉伸。
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8.发明授权Surface-modified cellulose microfibrils, method for making the same, and use thereof as a filler in composite materials 失效表面改性纤维素微原纤维，其制造方法及其在复合材料中作为填料的用途
公开(公告)号：US6117545A
公开(公告)日：2000-09-12
申请号：US43945
申请日：1998-07-09
CPC分类号： C08L1/12 , C08B3/06 , C08B3/20 , C08L67/04 , Y10T428/24058 , Y10T428/24074 , Y10T428/24124 , Y10T428/29 , Y10T428/2902 , Y10T428/2904 , Y10T428/2965 , Y10T428/2978
摘要： Cellulose microfibrils, in particular for use as a reinforcing filler or structuring agent in composite materials, a method for making same, and composite materials containing said microfibrils, are disclosed. Specifically, said microfibrils are surface-modified cellulose microfibrils with an L/D ratio higher than 20, preferably higher than 100, and an average diameter of 1-50 nm, where L is the length of the microfibril and D is its average diameter. At least 25% by number of the hydroxyl functions on the surface of the microfibrils are esterified by at least one organic compound including at least one function capable of reacting with the hydroxyl groups of the cellulose. As a result, when the organic compound is a compound that includes acetyl groups such as acetic acid, said microfibrils are used as a reinforcing filler in a material comprising cellulose acetate as the polymeric matrix. The filled composite material may be shaped to provide films, moldings, fibers or yarns.
摘要翻译： PCT No.PCT / FR96 / 01508 Sec。 371日期：1998年7月9日 102（e）日期1998年7月9日PCT 1996年9月27日PCT公布。 公开号WO97 / 12917 日期1997年04月10日公开了特别用作复合材料中的增强填料或结构剂的纤维素微原纤维，其制备方法和含有所述微原纤维的复合材料。 具体地说，所述微原纤维是L / D比高于20，优选高于100，平均直径为1-50nm的表面改性纤维素微原纤维，其中L是微原纤维的长度，D是其平均直径。 至少25％的微原纤维表面上的羟基官能团被至少一种有机化合物酯化，该化合物包括至少一种能与纤维素的羟基反应的功能。 结果，当有机化合物是包括乙酰基如乙酸的化合物时，所述微原纤维在包含乙酸纤维素作为聚合物基质的材料中用作增强填料。 填充的复合材料可以被成形为提供薄膜，模制品，纤维或纱线。
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公开(公告)号：US4501886A
公开(公告)日：1985-02-26
申请号：US519100
申请日：1983-08-01
申请人： John P. O'Brien
发明人： John P. O'Brien
摘要： High strength, high modulus cellulose triacetate fibers are produced by spinning a 30-42% by weight solution of cellulose triacetate having an acetyl content of at least 42.5% and an inherent viscosity of at least 5 from a solvent mixture comprising trifluoroacetic acid and another solvent having a molecular weight of less than 160 in a mol ratio of 0.3-3.0 through an air gap into a coagulating bath. The fibers are optionally heat treated under tension or saponified to provide high strength high modulus regenerated cellulose fibers.
摘要翻译： 高强度，高模量的三乙酸纤维素纤维通过将三乙酸酯含量为至少42.5％，特性粘度至少为5的三乙酸纤维素溶液从包含三氟乙酸和另一种溶剂的溶剂混合物中纺丝30-42％ 其分子量小于160，摩尔比为0.3-3.0，通过气隙进入凝固浴。 纤维任选在张力下进行热处理或皂化，以提供高强度高模量再生纤维素纤维。
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