公开(公告)号：US4186233A

公开(公告)日：1980-01-29

申请号：US890159

申请日：1978-03-27

Applicant: Richard M. Krajewski ,  Robert E. Erickson

Inventor： Richard M. Krajewski ,  Robert E. Erickson

IPC: A61F13/15 ,  A61L15/60 ,  A61L15/62 ,  B32B7/02 ,  A61F13/16

CPC classification number: A61L15/60 ,  A61F13/15211 ,  A61L15/62 ,  A61F2013/15048 ,  A61F2013/530481 ,  Y10S428/913 ,  Y10T428/2495 ,  Y10T428/3192 ,  Y10T428/31928 ,  Y10T428/31938

Abstract: A disposable composite comprising an absorbent, swellable film such as a lightly cross-linked polyacrylate, having on its two major surfaces a hydrophobic coating such as polyvinylidene chloride, is useful as a liner or packaging for disposable articles such as sanitary napkins. The hydrophobic coating protects the coated surfaces of the absorbent, swellable film from moisture, thereby maintaining the composite's integrity during use. Upon the composite's immersion in an aqueous fluid, the exposure of any uncoated film to water causes the composite to disintegrate, providing for easy flushability.

Abstract translation: 一种包含吸收剂，可溶胀薄膜（例如轻度交联的聚丙烯酸酯）的一次性复合材料，其两个主表面上具有疏水性涂层如聚偏二氯乙烯，可用作一次性制品如卫生巾的衬垫或包装。 疏水涂层保护吸收剂，可溶胀膜的涂层表面免受潮湿，从而在使用过程中保持复合材料的完整性。 当复合材料浸入水性液体中时，任何未涂覆的膜暴露于水会导致复合材料崩解，从而提供易于冲洗的性能。

公开(公告)号：US4117184A

公开(公告)日：1978-09-26

申请号：US809501

申请日：1977-06-23

Applicant: Robert E. Erickson ,  Richard M. Krajewski

Inventor： Robert E. Erickson ,  Richard M. Krajewski

IPC: A61F13/472 ,  A47K10/16 ,  A61F13/15 ,  A61F13/49 ,  A61F13/53 ,  A61L15/60 ,  B01J20/26 ,  B32B27/00 ,  B32B27/30 ,  B65H18/28 ,  C08J3/24 ,  C08J5/18 ,  C08L33/00 ,  C08L33/02 ,  C08L77/00 ,  A61F13/18 ,  B32B27/06 ,  B32B27/10 ,  B32B27/12

CPC classification number: A61L15/60 ,  Y10S428/913 ,  Y10S521/905 ,  Y10T156/1025 ,  Y10T428/249953 ,  Y10T428/27 ,  Y10T428/273 ,  Y10T428/277 ,  Y10T442/387

Abstract: Water swellable aerated films and laminates, made from solutions of carboxylic polyelectrolytes, together with methods for their preparation, are disclosed. The films and laminates are cured and/or crosslinked with a polyfunctional or difunctional crosslinking agent that is reactive with carboxylate groups by heating and/or removing substantially all of the water and/or alcohol from the precursor composition. The solutions are mechanically aerated prior to the curing step.The absorbent articles have a rapid water absorbency rate and are useful as components in diapers, tampons, dressings and the like.

公开(公告)号：USRE31822E

公开(公告)日：1985-02-05

申请号：US132928

申请日：1980-03-24

Applicant: Robert E. Erickson ,  Richard M. Krajewski

Inventor： Robert E. Erickson ,  Richard M. Krajewski

IPC: A61L15/60

CPC classification number: A61L15/60 ,  Y10T156/1025 ,  Y10T442/387

Abstract: Water swellable aerated films and laminates, made from solutions of carboxylic polyelectrolytes, together with methods for their preparation, are disclosed. The films and laminates are cured and/or crosslinked with a polyfunctional or difunctional crosslinking agent that is reactive with carboxylate groups by heating and/or removing substantially all of the water and/or alcohol from the precursor composition. The solutions are mechanically aerated prior to the curing step.The absorbent articles have a rapid water absorbency rate and are useful as components in diapers, tampons, dressings and the like.

公开(公告)号：US4200671A

公开(公告)日：1980-04-29

申请号：US903285

申请日：1978-05-05

Applicant: Richard M. Krajewski ,  Robert E. Erickson

Inventor： Richard M. Krajewski ,  Robert E. Erickson

IPC: B05D1/32 ,  B05D5/00 ,  C09D9/00 ,  B08B7/00

CPC classification number: B05D1/327 ,  B05D5/00 ,  C09D9/00

Abstract: Hydrophobic materials deposited on the surface of a substrate having a primer release coating of a water-insoluble, water-swellable polymer can easily be removed from the substrate upon exposure of the water-swellable polymer to an aqueous liquid. For example, paint applied to the surface of a steel panel precoated with a lightly cross-linked polyacrylate can easily be removed upon the immersion of the panel in water.

Abstract translation: 沉积在具有不溶于水的水可溶胀聚合物的底层剥离涂层的基材表面上的疏水性材料在将水溶胀性聚合物暴露于水性液体时可以容易地从基材上除去。 例如，当将面板浸入水中时，可以容易地去除涂覆在用轻链交联聚丙烯酸酯预涂的钢板表面上的涂料。