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公开(公告)号：US4537807A
公开(公告)日：1985-08-27
申请号：US600543
申请日：1984-04-16
申请人： Lock-Lim Chan , Patrick W. Lau
发明人： Lock-Lim Chan , Patrick W. Lau
CPC分类号： D21H17/36 , B32B29/06 , D21H17/39 , Y10S206/812 , Y10S428/913 , Y10T428/237 , Y10T428/31895 , Y10T442/2787
摘要： A premoistened towelette or wiper type paper product having high wet strength when stored in an acidic pH medium and during usage and lower wet strength when immersed in a neutral or alkaline pH medium for disposal in conventional sewage systems comprising a non-woven fibrous web which is treated with an improved polymeric binder comprising a copolymer of glyoxal and polyvinyl alcohol which maintains high wet strength when stored for sustained periods of time in acidic pH wetting medium conventionally used for external cleansing of the human body and during usage and yet which will readily break-up during flushing. This instant invention also comprises a method of treating non-woven fibrous webs with the improved glyoxalated polyvinyl alcohol copolymer binder and drying prior to wetting in an acidic, e.g. boric acid medium.
摘要翻译： 当在酸性pH介质中储存时具有高湿强度并且在使用期间具有较高湿强度并且在浸入中性或碱性pH介质中时具有较低湿强度的预润湿毛巾或擦拭纸产品，以便在常规污水系统中处理，所述常规污水系统包括非织造纤维网 用改进的聚合物粘合剂处理，其包含乙二醛和聚乙烯醇的共聚物，当在通常用于人体外部清洁的酸性pH湿润介质中和在使用过程中保持高的湿强度时保持高的湿强度， 在冲洗期间。 本发明还包括用改进的乙二醛化聚乙烯醇共聚物粘合剂处理非织造纤维网的方法，然后在酸性，例如， 硼酸介质。
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公开(公告)号：US06384116B1
公开(公告)日：2002-05-07
申请号：US09659726
申请日：2000-09-11
IPC分类号： C08K516
摘要： The specification discloses a binder composition comprising a urea formaldehyde resin modified with a water soluble non-ionic amine oxide and optionally further modified with an anionic acrylic latex and/or a water soluble polymer comprising 40-100% by weight, based on polymer weight, of a polymerized ethylenically unsaturated carboxylic acid monomer, the polymer having a weight average molecular weight from 100,000 to 2,000,000. Glass fiber mats bonded with the binder composition as well as roofing products, e.g., shingles, prepared from the glass mats bonded with the binder composition of this invention are also disclosed. The binder composition containing the amine oxide provides superior tear strength to glass fiber mats and with the use of the latex and/or water soluble polymer an improved tensile strength of the mats, as well as to asphalt roofing and other products made therefrom while maintaining the high tear strength. The specification also discloses processes for making: the binder; the bonded glass fiber mats; and the roofing products. The disclosure also provides a process for choosing a glass fiber mat or a specific formulation of the binder for use with each other which provides a desirable tensile and tear strength to the mat.
摘要翻译： 该说明书公开了一种粘合剂组合物，其包含用水溶性非离子氧化胺改性的脲甲醛树脂，并任选地进一步用阴离子丙烯酸胶乳和/或包含基于聚合物重量的40-100重量％的水溶性聚合物进一步改性， 的聚合烯属不饱和羧酸单体，该聚合物的重均分子量为100,000至2,000,000。 还公开了与粘合剂组合物结合的玻璃纤维毡以及由与本发明的粘合剂组合物结合的玻璃垫制备的屋顶产品，例如带状疱。 含有氧化胺的粘合剂组合物提供了对玻璃纤维垫的优异的撕裂强度，并且使用胶乳和/或水溶性聚合物改善了垫子的拉伸强度，以及沥青屋面和由其制成的其它产品，同时保持了 高撕裂强度。 本说明书还公开了制备粘合剂的方法： 粘结玻璃纤维垫; 和屋顶产品。 本公开还提供了一种用于选择相互使用的玻璃纤维垫或粘合剂的特定配方的方法，其为垫提供期望的拉伸和撕裂强度。
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公开(公告)号：US4036682A
公开(公告)日：1977-07-19
申请号：US590314
申请日：1975-06-25
CPC分类号： D21H17/43 , D21H17/375 , D21H17/50
摘要： Paper of high dry strength is produced by adding to a solution of fibers from 0.1 to 2% of a cationic resin and from 0.1 to 2% of an anionic resin. Proportion of cationic to anionic resin is in the range of 99:1 to 50:50. The preferred cationic resin is a condensation product of acetone, formaldehyde and polyalkylene polyamine which is prepared in presence of a catalytic amount of a strong inorganic acid and has a mol ratio of 1:3:0.5, respectively. The anionic resin is a copolymer of acrylamide and maleic acid or its anhydride having a mol ratio of from 90:10 to 98:2.
摘要翻译： 通过向0.1-2％的阳离子树脂和0.1-2％的阴离子树脂的纤维溶液中加入高干燥强度的纸。 阳离子至阴离子树脂的比例范围为99:1至50:50。 优选的阳离子树脂是丙酮，甲醛和聚亚烷基多胺的缩合产物，其在催化量的强无机酸存在下并分别具有1:3:0.5的摩尔比。 阴离子树脂是丙烯酰胺和马来酸或其酸酐的摩尔比为90:10至98:2的共聚物。
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公开(公告)号：US4007084A
公开(公告)日：1977-02-08
申请号：US590313
申请日：1975-06-25
摘要： Paper of high dry strength is produced by forming an aqueous solution of cellulose fibers and adding thereto a polymeric product of acetone, formaldehyde and polyethylene polyamine, which product is prepared at reflux temperature in presence of a catalytic amount of a strong inorganic acid and has a mol ratio of 1:3:0.5, respectively.
摘要翻译： 通过形成纤维素纤维的水溶液并向其中加入丙酮，甲醛和聚乙烯多胺的聚合物产生高干燥强度的纸，该产物在催化量的强无机酸存在下在回流温度下制备，并具有 摩尔比分别为1:3:0.5。
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公开(公告)号：US4088530A
公开(公告)日：1978-05-09
申请号：US683581
申请日：1976-05-06
申请人： Lock-Lim Chan , Joseph F. Schaffer
发明人： Lock-Lim Chan , Joseph F. Schaffer
CPC分类号： D21H17/43
摘要： Paper of dry strength is produced by forming an aqueous solution of papermaking cellulose fibers and adding thereto a 90:10 to 98:2 copolymer of acrylamide and maleic acid followed by addition of alum. The use of the acrylamide-maleic acid copolymer allows production of paper at a much broader pH range towards the alkaline side which eliminates the need for close control of pH and which substantially reduces corrosion of the papermaking equipment.
摘要翻译： 通过形成造纸纤维素纤维的水溶液并向其中加入丙烯酰胺和马来酸的90:10至98:2的共聚物，然后加入明矾制备干强度纸。 使用丙烯酰胺 - 马来酸共聚物允许在更宽的pH范围内向碱性侧生产纸，这消除了对pH的密切控制的需要，并且基本上减少了造纸设备的腐蚀。
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