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    • 6. 发明授权
    • Coformed dispersible nonwoven fabric bonded with a hybrid system
    • 与混合体系结合的共形分散无纺布
    • US5952251A
    • 1999-09-14
    • US774417
    • 1996-12-31
    • David Martin JacksonPavneet Singh MumickAudrie Tomoko OnoWilliam Seal PomplunKenneth Yin Wang
    • David Martin JacksonPavneet Singh MumickAudrie Tomoko OnoWilliam Seal PomplunKenneth Yin Wang
    • D04H1/555D04H1/407D04H1/42D04H1/54D04H1/56D04H5/06
    • D04H1/56D04H1/407D04H1/425D04H1/4382D04H1/54D04H5/02D04H5/03D04H5/06D04H5/08Y10T442/614Y10T442/615Y10T442/616Y10T442/625
    • A water-dispersible coformed fibrous nonwoven fabric structure comprising a primary reinforcing polymer material, preferably capable of being meltspun; a secondary reinforcing polymer material having an average fiber length less than or equal to about 15 mm and preferably having a softening point at least about 30.degree. C. lower than the softening point of the primary reinforcing polymer; and, an absorbent material, such as pulp or a superabsorbent. The fabric structure maintains desired tensile strength and softness while being water-dispersible and flushable. The fabric produced can be incorporated into an article and can be flushed down a commode. The fabric is flushable when placed in water, with agitation, if necessary, and will disperse into unrecognizable pieces without clogging conventional plumbing or piping.A method of producing the fabric structure comprises mixing the secondary reinforcing material and absorbent material and injecting this coform blend into a stream of meltspun primary reinforcing fibers. After a web structure has been established, the structure is exposed to thermal or ultrasonic energy sufficient to soften and bond the secondary reinforcing material fibers, but not to soften the primary reinforcing material fibers. An embossed pattern can be printed on the structure.
    • 一种水分散性共成形纤维无纺织物结构,其包含优选能熔融的第一增强聚合物材料; 第二增强聚合物材料的平均纤维长度小于或等于约15mm,优选软化点低于第一增强聚合物的软化点至少约30℃; 和吸收材料,例如纸浆或超吸收剂。 织物结构在水分散和可冲洗的同时保持期望的拉伸强度和柔软度。 所生产的织物可以并入到制品中并且可以被冲洗下来。 放置在水中时织物可以冲洗,必要时可以搅拌,并且会分散到不可识别的部件中,而不会堵塞常规的管道或管道。 制造织物结构的方法包括混合第二增强材料和吸收材料,并将该共聚物共混物注入熔融初级增强纤维流中。 在已经建立了网状结构之后,该结构暴露于足够的热或超声波能量,以软化和粘合第二增强材料纤维,但不会使主增强材料纤维软化。 可以在结构上印刷压花图案。
    • 8. 发明授权
    • Ion sensitive binder for fibrous materials
    • 用于纤维材料的离子敏感粘合剂
    • US06291372B1
    • 2001-09-18
    • US09480434
    • 2000-01-11
    • Pavneet Singh MumickWilliam Seal Pomplun
    • Pavneet Singh MumickWilliam Seal Pomplun
    • B32B2704
    • C08L33/064C08L23/0892C08L33/02D04H1/587D04H1/64Y10T442/20Y10T442/2352Y10T442/2762Y10T442/2861Y10T442/60C08L2666/04
    • A water soluble polymer binder for binding a fibrous substrate comprises from about 25 weight percent to about 85 weight percent of an unsaturated carboxylic acid/unsaturated carboxylic acid ester terpolymer; from about 5 weight percent to about 35 weight percent of a divalent ion inhibitor; and from about 10 weight percent to about 60 weight percent of a hydrophilic cross-linkable polymer. In a preferred mode of the invention the hydrophilic cross-linkable polymer functions substantially as a divalent ion inhibitor and promotes hydrophilicity of the treated fabric eliminating the requirement of a separate divalent ion inhibitor. The binder composition is soluble in an aqueous environment having a divalent ion concentration less than about 50 ppm and a monovalent ion concentration of less than about 0.4 weight percent. Also disclosed is a water dispersible fibrous fabric having an effective amount of the binder distributed on the fibrous substrate and a method of making a water dispersible fibrous fabric.
    • 用于结合纤维底物的水溶性聚合物粘合剂包含约25重量%至约85重量%的不饱和羧酸/不饱和羧酸酯三元共聚物; 约5重量%至约35重量%的二价离子抑制剂; 和约10重量%至约60重量%的亲水性可交联聚合物。 在本发明的优选模式中,亲水性可交联聚合物基本上作为二价离子抑制剂起作用并促进处理过的织物的亲水性,从而消除了单独的二价离子抑制剂的需要。 粘合剂组合物可溶于二价离子浓度小于约50ppm,一价离子浓度小于约0.4重量%的水性环境中。 还公开了具有有效量的分布在纤维基材上的粘合剂的水分散性纤维织物和制备水分散性纤维织物的方法。
    • 9. 发明授权
    • Ion sensitive binder for fibrous materials
    • 用于纤维材料的离子敏感粘合剂
    • US6043317A
    • 2000-03-28
    • US862806
    • 1997-05-23
    • Pavneet Singh MumickWilliam Seal Pomplun
    • Pavneet Singh MumickWilliam Seal Pomplun
    • A61F13/15A61F13/53A61F15/00C08L23/08C08L33/02C08L33/06C09D133/06C09J133/06D04H1/64C08F8/00
    • C08L33/064C08L33/02D04H1/587D04H1/64C08L23/0892Y10T442/20Y10T442/2352Y10T442/2762Y10T442/2861Y10T442/60
    • A water soluble polymer binder for binding a fibrous substrate comprises from about 25 weight percent to about 85 weight percent of an unsaturated carboxylic acid/unsaturated carboxylic acid ester terpolymer; from about 5 weight percent to about 35 weight percent of a divalent ion inhibitor; and from about 10 weight percent to about 60 weight percent of a hydrophilic cross-linkable polymer. In a preferred mode of the invention the hydrophilic cross-linkable polymer functions substantially as a divalent ion inhibitor and promotes hydrophilicity of the treated fabric eliminating the requirement of a separate divalent ion inhibitor. The binder composition is soluble in an aqueous environment having a divalent ion concentration less than about 50 ppm and a monovalent ion concentration of less than about 0.4 weight percent. Also disclosed is a water dispersible fibrous fabric having an effective amount of the binder distributed on the fibrous substrate and a method of making a water dispersible fibrous fabric.
    • 用于结合纤维底物的水溶性聚合物粘合剂包含约25重量%至约85重量%的不饱和羧酸/不饱和羧酸酯三元共聚物; 约5重量%至约35重量%的二价离子抑制剂; 和约10重量%至约60重量%的亲水性可交联聚合物。 在本发明的优选模式中,亲水性可交联聚合物基本上作为二价离子抑制剂起作用并促进处理过的织物的亲水性,从而消除了单独的二价离子抑制剂的需要。 粘合剂组合物可溶于二价离子浓度小于约50ppm,一价离子浓度小于约0.4重量%的水性环境中。 还公开了具有有效量的分布在纤维基材上的粘合剂的水分散性纤维织物和制备水分散性纤维织物的方法。