Stephen E Krampe

US Patent:

6436499, Aug 20, 2002

Filed:

Mar 2, 2000

Appl. No.:

09/517382

Inventors:

Stephen E. Krampe - Maplewood MN
Michael D. Delmore - Moundsview MN

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

B32B 712

US Classification:

428 401, 2291231, 22912535, 2291602, 229901, 383 35, 428 406, 428 415, 428 419, 428 421, 428192, 428194, 428422, 4284744, 428480, 428484, 428500, 428522, 428914

Abstract:

The present invention is directed to a cold seal package that includes constructions wherein two substrates, or two portions of one substrate, are sealingly engaged to one another using a substantially natural latex rubber-free contact adhesive. The two substrates can be easily peeled apart without substantial damage to the substrates. Furthermore, the substrates cannot typically be resealed, or refastened, once peeled apart. That is, the cold seal formed by the adhesive between the substrates is substantially non-refastenable. Advantageously, a cold seal package of the present invention is particularly well suited for aseptic delivery of packaged goods, such as bandages, dressings, and the like.

US Patent:

6489003, Dec 3, 2002

Filed:

Mar 8, 2000

Appl. No.:

09/508207

Inventors:

Leon Levitt - Mendota Heights MN
Robert D. Kampfer - Oakdale MN
Michael D. Delmore - Mounds View MN
Stephen E. Krampe - Maplewood MN
Brandon T. Berg - Woodbury MN
Alan J. Sipinen - North Oaks MN
Mark E. Napierala - Woodbury MN
Victor P. Thalacker - Stillwater MN

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

B32B 306

US Classification:

428100, 428 99, 428120, 428174, 428343, 24442, 24452

Abstract:

An elastic web of material has a multiplicity of stems extending from at least one side of the web. The web includes a first continuous layer of elastic material having a first side and a second side and a second layer of material. The second layer of material has a first side which faces the first side of the first layer and a second side from which the stems extend. The first and second layers of material are joined together. The second layer of material can be formed of thermoplastic material or melt processable polymeric material. The first and second layers of material are melt formed. They are joined by coextrusion or lamination to form a multiple layer sheet on which a multiplicity of stems are formed on at least the second layer by a process such as embossing the stems into the heated web using a patterned roll or mold.

US Patent:

6566575, May 20, 2003

Filed:

Feb 15, 2000

Appl. No.:

09/505046

Inventors:

Steven C. Stickels - Woodbury MN
Peter M. Seiler - Minneapolis MN
Stephen E. Krampe - Maplewood MN
Scott A. Burton - Woodbury MN

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

A61F 1300

US Classification:

602 41, 602 42, 604304, 604358

Abstract:

An absorbent dressing comprising a hydrophilic gel absorbent layer having a patterned surface on at least one major surface thereof is provided. The patterned surface allows greater surface area for absorption of wound exudate when oriented toward the wound surface, while reducing the absorbent surface area in direct or indirect contact with the wound.

US Patent:

6939936, Sep 6, 2005

Filed:

Apr 25, 2002

Appl. No.:

10/133975

Inventors:

Danli Wang - Shoreview MN, US
Stephen E. Krampe - Maplewood MN, US
Matthew T. Scholz - Woodbury MN, US
Michael P. Daniels - Inver Grove Heights MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

C09J005/00

US Classification:

526935, 1563316, 1563309, 156327

Abstract:

An iodine/iodide-containing hot melt coatable adhesive is provided. This adhesive is prepared by mixing iodine and an iodide salt, individually or in combination, with solubilizing liquids. The iodine and iodide salt are combined with a pre-adhesive composition in a hot melt mixer, with an iodine/iodide complexing agent being present in the mixture. The mixture is mixed at a temperature from about 130 C. to about 200 C. and sufficiently to form an iodine/iodide-containing hot melt coatable adhesive. Alternatively, the iodide may be generated in situ. The adhesive so prepared may be packaged for coating on a substrate at a later time, or may be immediately coated to form an adhesive composite. Adhesive composites, particularly surgical incise drapes, are provided incorporating this hot melt coatable adhesive.

US Patent:

7189793, Mar 13, 2007

Filed:

Apr 28, 2005

Appl. No.:

11/116465

Inventors:

Danli Wang - Shoreview MN, US
Stephen E. Krampe - Maplewood MN, US
Matthew T. Scholz - Woodbury MN, US
Michael P. Daniels - Inver Grove Heights MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

C08J 5/00

US Classification:

526935, 1563316, 1563309, 156327

Abstract:

An iodine/iodide-containing hot melt coatable adhesive is provided. This adhesive is prepared by mixing iodine and an iodide salt, individually or in combination, with solubilizing liquids. The iodine and iodide salt are combined with a pre-adhesive composition in a hot melt mixer, with an iodine/iodide complexing agent being present in the mixture. The mixture is mixed at a temperature from about 130 C. to about 200 C. and sufficiently to form an iodine/iodide-containing hot melt coatable adhesive. Alternatively, the iodide may be generated in situ. The adhesive so prepared may be packaged for coating on a substrate at a later time, or may be immediately coated to form an adhesive composite. Adhesive composites, particularly surgical incise drapes, are provided incorporating this hot melt coatable adhesive.

US Patent:

7704602, Apr 27, 2010

Filed:

Feb 8, 2007

Appl. No.:

11/672694

Inventors:

Danli Wang - Shoreview MN, US
Stephen E. Krampe - Maplewood MN, US
Zhiming Zhou - Woodbury MN, US
Matthew T. Scholz - Woodbury MN, US
Michael P. Daniels - Inver Grove Heights MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

B32B 7/12
C09J 4/00

US Classification:

428346, 526935, 1563316, 1563309, 156327

Abstract:

An iodine/iodide-containing hot melt coatable adhesive is provided. This adhesive is prepared by mixing iodine and an iodide salt, individually or in combination, with solubilizing liquids. The iodine and iodide salt are combined with a pre-adhesive composition in a hot melt mixer, with an iodine/iodide complexing agent being present in the mixture. The mixture is mixed at a temperature from about 130 C. to about 200 C. and sufficiently to form an iodine/iodide-containing hot melt coatable adhesive. Alternatively, the iodide may be generated in situ. The adhesive so prepared may be packaged for coating on a substrate at a later time, or may be immediately coated to form an adhesive composite. Adhesive composites, particularly surgical incise drapes, are provided incorporating this hot melt coatable adhesive.

US Patent:

20030015819, Jan 23, 2003

Filed:

Sep 9, 2002

Appl. No.:

10/237502

Inventors:

Leon Levitt - Mendota Heights MN, US
Robert Kampfer - Oakdale MN, US
Michael Delmore - Mounds View MN, US
Stephen Krampe - Maplewood MN, US
Brandon Berg - Woodbury MN, US
Alan Sipinen - North Oaks MN, US
Mark Napierala - Woodbury MN, US
Victor Thalacker - Stillwater MN, US

Assignee:

3M Innovative Properties Company

International Classification:

B29C047/06
B32B025/08
B32B031/30

US Classification:

264/167000, 264/173110, 264/173140, 264/173150, 264/173160, 264/173170, 264/173190, 264/174100, 264/174110

Abstract:

An elastic web of material has a multiplicity of stems extending from at least one side of the web. The web includes a first continuous layer of elastic material having a first side and a second side and a second layer of material. The second layer of material has a first side which faces the first side of the first layer and a second side from which the stems extend. The first and second layers of material are joined together. The second layer of material can be formed of thermoplastic material or melt processable polymeric material. The first and second layers of material are melt formed. They are joined by coextrusion or lamination to form a multiple layer sheet on which a multiplicity of stems are formed on at least the second layer by a process such as embossing the stems into the heated web using a patterned roll or mold.

US Patent:

20060034899, Feb 16, 2006

Filed:

Aug 12, 2004

Appl. No.:

10/917102

Inventors:

Caroline Ylitalo - Stillwater MN, US
Jeffrey Tokie - Scandia MN, US
Matthew Scholz - Woodbury MN, US
Prabhakara Rao - Maplewood MN, US
Stephen Krampe - Maplewood MN, US
Mark Hendrickson - Minneapolis MN, US
Peter Elliott - Woodbury MN, US
Scott Burton - Woodbury MN, US

International Classification:

A61F 13/02
A61K 33/38

US Classification:

424448000, 424618000

Abstract:

The present invention is a method of coating an adhesive layer. The method includes non-contact depositing a fluid solution onto the adhesive layer and allowing the fluid solution to substantially dry, where the fluid solution comprising a biological active. The fluid solution exhibits a Hildebrand solubility parameter of at least about 3.7 MegaPascalsgreater than a Hildebrand solubility parameter of the adhesive layer.