公开(公告)号：US20150080823A1

公开(公告)日：2015-03-19

申请号：US14394109

申请日：2013-04-05

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Delton R. Thompson ,  Robert L. Rowan

IPC: A61L15/24 ,  A61L15/28

CPC classification number: A61L15/24 ,  A61L15/26 ,  A61L15/28 ,  A61L15/425 ,  C08L75/04

Abstract: Absorbent articles are described comprising an absorbent composite. The absorbent composite comprises a first absorbent layer comprising a polymeric foam having an average cell size of at least 100 microns. The polymeric foam has at least one property selected from a) an indentation force deflection of less than 75 N at 50%; or b) a constant deflection compression set of less than 25% for a deflection of 50%; or a combination of a) and b); and a second absorbent layer in fluid communication with the fluid transport layer. In another embodiment, the a second absorbent layer has an average absorption capacity of at least 20 g/g. In another embodiment, a polyurethane foam is described having an average cell size of at least 100 microns. The polyurethane foam comprises the reaction product of at least one polyol component having polyethylene oxide units and a polyisocyanate component that comprises at least 75 wt-% of at least one polymeric polyisocyanate that lacks urethane linkages. In some embodiments, the polyurethane foam is free of superabsorbent polymer. In some embodiments, the polyurethane foam has an average cell size up to 500 microns. In some embodiments, the polyurethane foam comprises at least 12 wt-% ethylene oxide units. Also described are various composites comprising the polyurethane foam described herein in combination with another substrate such as a second absorbent layer, a fluid impervious backsheet, and/or a fluid pervious topsheet.

Abstract translation: 描述了包含吸收性复合材料的吸收制品。 吸收性复合材料包括第一吸收层，其包含平均泡孔尺寸至少为100微米的聚合物泡沫。 聚合物泡沫具有至少一种性质，其选自a）50％的压痕力偏转小于75N; 或b）对于50％的偏转，恒定偏转压缩变形小于25％; 或a）和b）的组合; 以及与流体输送层流体连通的第二吸收层。 在另一个实施方案中，第二吸收层具有至少20g / g的平均吸收容量。 在另一个实施方案中，描述了具有至少100微米的平均泡孔尺寸的聚氨酯泡沫。 聚氨酯泡沫包括至少一种具有聚环氧乙烷单元的多元醇组分和多异氰酸酯组分的反应产物，其包含至少75wt％的至少一种缺少氨基甲酸酯键的聚异氰酸酯。 在一些实施方案中，聚氨酯泡沫不含超吸收聚合物。 在一些实施方案中，聚氨酯泡沫具有高达500微米的平均泡孔尺寸。 在一些实施方案中，聚氨酯泡沫包含至少12重量％的环氧乙烷单元。 还描述了包含本文所述的聚氨酯泡沫与另一基底如第二吸收层，不透液体的底片和/或流体可透过的顶片的各种复合材料。

公开(公告)号：US11351286B2

公开(公告)日：2022-06-07

申请号：US16402831

申请日：2019-05-03

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Delton R. Thompson, Jr. ,  Robert L. Rowan

IPC: A61F13/15 ,  A61L15/24 ,  A61L15/26 ,  A61L15/42 ,  A61L15/28

Abstract: Absorbent articles are described comprising an absorbent composite. The absorbent composite comprises a first absorbent layer comprising a polymeric foam having an average cell size of at least 100 microns. The polymeric foam has at least one property selected from a) an indentation force deflection of less than 75 N at 50%; or b) a constant deflection compression set of less than 25% for a deflection of 50%; or a combination of a) and b); and a second absorbent layer in fluid communication with the fluid transport layer. In another embodiment, the a second absorbent layer has an average absorption capacity of at least 20 g/g. In another embodiment, a polyurethane foam is described having an average cell size of at least 100 microns. The polyurethane foam comprises the reaction product of at least one polyol component having polyethylene oxide units and a polyisocyanate component that comprises at least 75 wt-% of at least one polymeric polyisocyanate that lacks urethane linkages. In some embodiments, the polyurethane foam is free of superabsorbent polymer. In some embodiments, the polyurethane foam has an average cell size up to 500 microns. In some embodiments, the polyurethane foam comprises at least 12 wt-% ethylene oxide units. Also described are various composites comprising the polyurethane foam described herein in combination with another substrate such as a second absorbent layer, a fluid impervious backsheet, and/or a fluid pervious topsheet.

公开(公告)号：US20150119837A1

公开(公告)日：2015-04-30

申请号：US14394106

申请日：2013-05-13

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Delton R. Thompson, JR. ,  Robert L. Rowan

IPC: A61F13/537 ,  A61L15/42 ,  B01J20/28 ,  A61L15/22 ,  A61F13/15 ,  B01J20/26

CPC classification number: A61F13/53713 ,  A61F13/15203 ,  A61F2013/15121 ,  A61F2013/15463 ,  A61F2013/530649 ,  A61F2013/5307 ,  A61L15/225 ,  A61L15/26 ,  A61L15/425 ,  A61L15/60 ,  B01J20/261 ,  B01J20/262 ,  B01J20/28085 ,  B01J2220/445 ,  B01J2220/68 ,  C08L75/04

Abstract: Absorbent articles are described comprising an absorbent composite. The absorbent composite comprises a first absorbent layer comprising a polymeric foam having an average cell size of at least 100 microns and discrete pieces of superabsorbent polymer dispersed within the polymeric foam; and a second absorbent layer in fluid communication with the first absorbent layer. Favored articles include disposable diapers, feminine hygiene articles, and adult incontinence articles. Also described is a polyurethane foam is described having an average cell size of at least 100 microns. The polyurethane foam is the reaction product of a polyether polyol having polyethylene oxide units and at least one polymeric polyisocyanate that lacks urethane linkages. The polyureth ane foam comprises at least 5 wt-% of discrete pieces of superabsorbent polymer. Also described are various composites comprising the polyurethane foam described herein in combination with another substrate such as a second absorbent layer, a fluid impervious backsheet, and/or a fluid pervious topsheet.

Abstract translation: 描述了包含吸收性复合材料的吸收制品。 吸收性复合材料包括第一吸收层，其包含平均泡孔尺寸至少为100微米的聚合物泡沫，以及分散在聚合物泡沫体内的分散的超吸收性聚合物片; 和与第一吸收层流体连通的第二吸收层。 喜爱的物品包括一次性尿布，女性卫生用品和成人失禁用品。 还描述了具有至少100微米的平均泡孔尺寸的聚氨酯泡沫。 聚氨酯泡沫是具有聚环氧乙烷单元的聚醚多元醇和缺少氨基甲酸酯键的至少一种聚异氰酸酯的反应产物。 聚氨酯泡沫包括至少5重量％的离散片超吸收聚合物。 还描述了包含本文所述的聚氨酯泡沫与另一基底如第二吸收层，不透液体的底片和/或流体可透过的顶片的各种复合材料。

公开(公告)号：US20190255211A1

公开(公告)日：2019-08-22

申请号：US16402831

申请日：2019-05-03

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Delton R. Thompson, JR. ,  Robert L. Rowan

IPC: A61L15/24 ,  A61L15/42 ,  A61L15/28 ,  A61L15/26

Abstract: Absorbent articles are described comprising an absorbent composite. The absorbent composite comprises a first absorbent layer comprising a polymeric foam having an average cell size of at least 100 microns. The polymeric foam has at least one property selected from a) an indentation force deflection of less than 75 N at 50%; or b) a constant deflection compression set of less than 25% for a deflection of 50%; or a combination of a) and b); and a second absorbent layer in fluid communication with the fluid transport layer. In another embodiment, the a second absorbent layer has an average absorption capacity of at least 20 g/g. In another embodiment, a polyurethane foam is described having an average cell size of at least 100 microns. The polyurethane foam comprises the reaction product of at least one polyol component having polyethylene oxide units and a polyisocyanate component that comprises at least 75 wt-% of at least one polymeric polyisocyanate that lacks urethane linkages. In some embodiments, the polyurethane foam is free of superabsorbent polymer. In some embodiments, the polyurethane foam has an average cell size up to 500 microns. In some embodiments, the polyurethane foam comprises at least 12 wt-% ethylene oxide units. Also described are various composites comprising the polyurethane foam described herein in combination with another substrate such as a second absorbent layer, a fluid impervious backsheet, and/or a fluid pervious topsheet.

公开(公告)号：US10357588B2

公开(公告)日：2019-07-23

申请号：US14394109

申请日：2013-04-05

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Delton R. Thompson, Jr. ,  Robert L. Rowan

IPC: A61F13/15 ,  A61L15/24 ,  A61L15/26 ,  A61L15/42 ,  A61L15/28

Abstract: Absorbent articles are described comprising an absorbent composite. The absorbent composite comprises a first absorbent layer comprising a polymeric foam having an average cell size of at least 100 microns. The polymeric foam has at least one property selected from a) an indentation force deflection of less than 75 N at 50%; or b) a constant deflection compression set of less than 25% for a deflection of 50%; or a combination of a) and b); and a second absorbent layer in fluid communication with the fluid transport layer. In another embodiment, the a second absorbent layer has an average absorption capacity of at least 20 g/g. In another embodiment, a polyurethane foam is described having an average cell size of at least 100 microns. The polyurethane foam comprises the reaction product of at least one polyol component having polyethylene oxide units and a polyisocyanate component that comprises at least 75 wt-% of at least one polymeric polyisocyanate that lacks urethane linkages. In some embodiments, the polyurethane foam is free of superabsorbent polymer. In some embodiments, the polyurethane foam has an average cell size up to 500 microns. In some embodiments, the polyurethane foam comprises at least 12 wt-% ethylene oxide units. Also described are various composites comprising the polyurethane foam described herein in combination with another substrate such as a second absorbent layer, a fluid impervious backsheet, and/or a fluid pervious topsheet.