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公开(公告)号:US06765042B1
公开(公告)日:2004-07-20
申请号:US09868139
申请日:2001-09-19
申请人: Jeffrey Wilson Thornton , Bas Schraven , Harm Jan Thiewes , Dorine Lisa Van Brussel-Verreast , Luca Bemporad , Anne-Mieke Yvonne Wilhelmina Verwiiligen , Arie Cornelis Besemer , Pia Kalentuin
发明人: Jeffrey Wilson Thornton , Bas Schraven , Harm Jan Thiewes , Dorine Lisa Van Brussel-Verreast , Luca Bemporad , Anne-Mieke Yvonne Wilhelmina Verwiiligen , Arie Cornelis Besemer , Pia Kalentuin
IPC分类号: C08J324
CPC分类号: C08B15/005 , A61L15/28 , A61L15/60 , Y10S526/903 , C08L1/26 , C08L3/04
摘要: A process is disclosed for producing an acidic superabsorbent polysaccharide derivative, comprising the steps of: (a) crosslinking at least one polysaccharide containing acidic groups, such as carboxymethyl cellulose and/or 6-carboxy starch, with a crosslinking agent to produce a gel; (b) if necessary, adjusting the pH of the polysaccharide to a value between 3.5 and 5.5; (c) comminuting the acidified polysaccharide gel; and (d) drying the comminuted polysaccharide at elevated temperature. The superabsorbent polysaccharide obtainable by this process has a pH below 5 and provides odour control when contacted with malodorous fluids.
摘要翻译: 公开了一种制备酸性超吸收性多糖衍生物的方法,其包括以下步骤:(a)将至少一种含酸性基团的多糖例如羧甲基纤维素和/或6-羧基淀粉与交联剂交联以产生凝胶; (b)如果需要,将多糖的pH调节至3.5至5.5之间的值; (c)粉碎酸化多糖凝胶; 和(d)在升高的温度下干燥经粉碎的多糖。 通过该方法可获得的超吸收性多糖具有低于5的pH,并且当与恶臭液体接触时提供气味控制。
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公开(公告)号:US06720389B2
公开(公告)日:2004-04-13
申请号:US09945812
申请日:2001-09-05
申请人: Takumi Hatsuda , Yoshio Irie , Masatoshi Nakamura , Katsuyuki Wada , Shinichi Fujino , Kazuki Kimura , Kunihiko Ishizaki
发明人: Takumi Hatsuda , Yoshio Irie , Masatoshi Nakamura , Katsuyuki Wada , Shinichi Fujino , Kazuki Kimura , Kunihiko Ishizaki
IPC分类号: C08J324
CPC分类号: C08J3/122 , A61L15/60 , C08J3/245 , C08J2300/14 , Y10S524/916 , Y10T428/2982
摘要: In a production process for a water-absorbent resin, comprising the steps of: blending a liquid material and a water-absorbent resin; and heating the resultant mixture in order to produce a modified water-absorbent resin, the present invention is to provide: a method for uniformly and efficiently treating a water-absorbent resin favorably in view of industry, and as a result, a good-balanced water-absorbent resin having various excellent properties, such absorption capacity without a load, absorption capacity under a load, and single-layer absorption capacity under a load in contact with an aqueous liquid. The production process comprises the step of spray-blending a water-absorbent resin (A) and a liquid material (B) with a blending apparatus equipped with a spray nozzle (C), wherein the liquid material (B) is sprayed from the spray nozzle (C) and its spray pattern is a circular and hollow cone shape or a double-convex-lens and elliptic cone shape. In addition, the production process comprises the step of heat-treating a water-absorbent resin under an atmosphere having a dew point of not higher than 60° C. and a temperature of not lower than 90° C., wherein the water-absorbent resin is obtained after a drying step following a pulverization step.
摘要翻译: 在吸水性树脂的制造方法中,包括以下步骤:将液体材料和吸水性树脂混合; 并加热得到的混合物以制备改性吸水性树脂,本发明提供一种从工业上有利地均匀有效地处理吸水性树脂的方法,结果是良好平衡 具有各种优异性能的吸水性树脂,这种无负载的吸收能力,负载下的吸收能力以及在与水性液体接触的负荷下的单层吸收能力。 制备方法包括用配有喷嘴(C)的混合装置将吸水性树脂(A)和液体材料(B)喷雾共混的步骤,其中液体材料(B)从喷雾 喷嘴(C)及其喷射图案是圆形和中空圆锥形或双凸透镜和椭圆锥形。 此外,制造方法包括在露点不高于60℃,温度不低于90℃的气氛下对吸水性树脂进行热处理的步骤,其中吸水剂 在粉碎步骤之后的干燥步骤之后获得树脂。
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公开(公告)号:US06686418B2
公开(公告)日:2004-02-03
申请号:US09862935
申请日:2001-05-22
申请人: Siegfried Wallenwein , Frank Scholl , Helmut Eckes
发明人: Siegfried Wallenwein , Frank Scholl , Helmut Eckes
IPC分类号: C08J324
CPC分类号: C08L21/00 , C08L2666/16
摘要: A process for reducing the heat evolution on dynamic stressing of vulcanised rubber products, using for this purpose, in vulcanizable rubber mixtures, mixtures made from non-selfcuring novolaks A and from unetherified or partially etherified triazine resins B, as a combination of reinforcing resin and curing agent.
摘要翻译: 一种降低硫化橡胶制品的动态应力放热的方法,用于此目的,在可硫化的橡胶混合物中,由非自固化酚醛清漆A制成的混合物和未醚化或部分醚化的三嗪树脂B作为增强树脂和 固化剂。
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公开(公告)号:US06559238B1
公开(公告)日:2003-05-06
申请号:US09315186
申请日:1999-05-20
IPC分类号: C08J324
CPC分类号: C08L51/003 , C08F8/32 , C08F214/18 , C08F214/262 , C08F214/265 , C08F259/08 , C08F2800/10 , C08F2810/20 , C08L27/12 , C08L77/00 , C08L2666/14
摘要: Melt-fabricable thermoplastic fluoropolymer having pendant functional groups is thermally cross-linked in the presence of polyfunctional nucleophile.
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公开(公告)号:US06174645B1
公开(公告)日:2001-01-16
申请号:US09304417
申请日:1999-05-03
IPC分类号: C08J324
CPC分类号: G03F7/0388 , G03C1/733 , G03F7/027 , G03F7/039
摘要: The present invention provides crosslinked polymeric networks that are reversibly crosslinked upon exposure to light of a suitable wavelength. In one embodiment photocrosslinkable branched hydrophilic polymers containing photochromic groups are synthesized. Cinnamylidene groups and derivatives of cinnamylidene are preferably used as the photochromic agents or photocrosslinking agents.
摘要翻译: 本发明提供了在暴露于合适波长的光下可逆交联的交联聚合物网络。 在一个实施方案中,合成含有光致变色基团的可光交联的支化亲水性聚合物。 作为光致变色剂或光交联剂,优选使用亚肉桂酰亚胺基和肉桂亚基的衍生物。
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