公开(公告)号：US20180158444A1

公开(公告)日：2018-06-07

申请号：US15889284

申请日：2018-02-06

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Delton R. Thompson, JR. ,  Ronald W. Gerdes ,  Brian L. Nelson

IPC: G10K11/168 ,  B32B5/26 ,  B60R13/08 ,  A47L15/42

CPC classification number: G10K11/168 ,  A47L15/4209 ,  B32B5/26 ,  B60R13/08 ,  B60R13/0815 ,  B60R13/083 ,  B60R13/0838 ,  B60R13/0861 ,  B60R13/0884

Abstract: Sound insulation constructions, multilayer constructions for acoustically insulating a source of sound from a receiver that include one or more sound insulation constructions, structures comprising one or more sound insulation constructions and/or multilayer constructions, and a method for acoustically insulating a source of sound from a receiver. In some embodiments, the sound insulation construction includes a first layer and a second layer. The first layer can include a bonded fiber nonwoven web exhibiting a work of compression of at least about 0.7 kJ/m3 and an airflow resistance of no greater than 10,000 Rayls/m. The second layer can exhibit an airflow resistance of greater than 10,000 Rayls/m. In some embodiments, the method includes coupling the first layer to a surface of a vehicle to attenuate sound in at least a portion of the vehicle.

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：US20140295134A1

公开(公告)日：2014-10-02

申请号：US13854411

申请日：2013-04-01

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Leigh E. Wood ,  Thomas J. Gilbert ,  Delton R. Thompson, JR. ,  Mark A. Peltier ,  Lori-Ann S. Prioleau

IPC: B01J20/28 ,  B32B38/04 ,  B32B3/26

Abstract: An absorbent foam composite comprising a foam layer having open slits that define apertures on at least a portion of the foam layer and an absorbent layer. A heat set film may be sandwiched between the foam layer and the absorbent layer and have opened slits that define apertures that are at least partially congruent with the apertures of the foam layer. The absorbent layer may contain apertures or be aperture free. The absorbent foam composites can be used in a variety of applications, including personal hygiene articles, medical bandages, pet pads and agricultural pads.

Abstract translation: 一种吸收性泡沫复合材料，其包含泡沫层，所述泡沫层具有限定泡沫层的至少一部分上的孔的开口狭缝和吸收层。 热定型膜可以夹在泡沫层和吸收层之间，并且具有开口狭缝，狭缝限定与泡沫层的孔至少部分一致的孔。 吸收层可以包含孔或无孔。 吸收性泡沫复合材料可用于各种应用，包括个人卫生用品，医用绷带，宠物垫和农业垫。