摘要:
This invention is directed to super-absorbent material, which comprises a super absorbent polymer core that is coated with an organic, polar coating agent, and whereby the particulate super-absorbent material has a contact angle and a corresponding cos CAm (as defined herein), whereby the cos CAm is more than 0.3, and whereby, when said coating agent is in the form of particles, said coating agent particles have a (weight) mean particle size of from 0.001 to 1 micron. The material is useful for absorbent structures and absorbent articles (comprising such structures). The coated super-absorbent material is typically present in said absorbent structure at least at a concentration of 50% by weight of the structure, preferably even 80% or even 90%. The invention also provides a process for making the absorbent material.
摘要翻译:本发明涉及一种超吸收材料,其包括涂覆有机极性涂层剂的超吸收性聚合物芯,并且其中颗粒状超吸收材料具有接触角和相应的cos CA / SUB>(如本文所定义),其中cos CA m大于0.3,并且由此当所述包衣剂为颗粒形式时,所述包衣剂颗粒具有(重量)平均值 粒度为0.001至1微米。 该材料可用于吸收结构和吸收制品(包括这种结构)。 涂覆的超吸收材料通常存在于所述吸收结构中,至少以结构的50重量%的浓度存在,优选甚至为80%或甚至90%。 本发明还提供了制造吸收材料的方法。
摘要:
This invention is directed to super-absorbent material, which comprises a super absorbent polymer core that is coated with an organic, polar coating agent, and whereby the particulate super-absorbent material has a contact angle and a corresponding cos CAm (as defined herein), whereby the cos CAm is more than 0.3, and whereby, when said coating agent is in the form of particles, said coating agent particles have a (weight) mean particle size of from 0.001 to 1 micron. The material is useful for absorbent structures and absorbent articles (comprising such structures). The coated super-absorbent material is typically present in said absorbent structure at least at a concentration of 50% by weight of the structure, preferably even 80% or even 90%. The invention also provides a process for making the absorbent material.
摘要翻译:本发明涉及超吸收材料,其包括涂覆有机极性涂层剂的超吸收性聚合物芯,并且其中颗粒状超吸收材料具有接触角和相应的cos CA m(如本文所定义) ,其中cos CA m大于0.3,并且由此当所述涂覆剂为颗粒形式时,所述涂覆剂颗粒的(重量)平均粒度为0.001至1微米。 该材料可用于吸收结构和吸收制品(包括这种结构)。 涂覆的超吸收材料通常存在于所述吸收结构中,至少以结构的50重量%的浓度存在,优选甚至为80%或甚至90%。 本发明还提供了制造吸收材料的方法。
摘要:
The present invention relates to absorbent cores for absorbent articles, which are intended to receive and retain bodily discharges such as urine. Such articles are disposable hygiene articles like baby diapers, training pants, adult incontinence articles, feminine care articles and the like. The improvement essentially is based on the recognition that replacing most or all of the cushioning fibrous absorbent material in an absorbent core by a liquid storage material capable of retaining liquid while maintaining or improving acquisition behavior is desirable as the reduction in cushioning is more than compensated by the gain in comfort. The comfort however can only be achieved if the more fundamental requirements of a diaper in respect to liquid handling are satisfied or improved. Especially if this liquid handling performance is improved beyond the performance of conventional absorbent structures in order to allow creation of thinner and drier absorbent articles, the users of such articles would experience them as providing a more than expected comfort improvement relative to the thinness gain. To provide such absorbent cores and articles made therewith only became possible with the development of new highly absorbent gel materials capable of acquiring, conducting, and storing liquids in here-to-fore unexpected perfection at super absorbent polymer concentrations, which are unknown today. The second aspect allowing this breakthrough development is the ability to maintain the comfort and performance of such high super absorbent polymer concentration articles during the full usage cycle of the article, from dry to fully loaded, especially by improving the ability of the cores to withstand the forces experienced by such articles during use. This ability to remain intact is also often referred to as wet integrity of the core and its improvement is an important objective of the present invention.