Robert M Floyd

US Patent:

6837698, Jan 4, 2005

Filed:

Dec 19, 2001

Appl. No.:

10/028052

Inventors:

Robert M. Floyd - Maplewood MN, US

Assignee:

3M Innovative Properties Company - Saint Paul MN

International Classification:

B29C 4706

US Classification:

4251311, 4251315, 425465, 26417312

Abstract:

The invention is an extrusion device comprising an interleaving block portion. The interleaving block portion includes at least two first chambers, each first chamber including a width, a length, a height, and an input aperture. The length dimension of the first chambers are generally parallel. An output aperture is included in each first chamber, the output aperture is wider and shorter in height than the input aperture. A series of first distances are defined between the input aperture to points along the output aperture. A die portion is included in the extrusion device. The die portion has a laminate chamber having a height dimension. The height dimension of the laminate is disposed generally perpendicular to the length dimension of the first chambers. An output is disposed at one end of the height dimension. The laminate chamber is disposed so as to be in communication with the output apertures of the parallel first chambers.

US Patent:

6949283, Sep 27, 2005

Filed:

Dec 19, 2001

Appl. No.:

10/028638

Inventors:

Richard A. Kollaja - Dusseldorf, DE
Axel Eckstein - Korschenbroich, DE
Robert M. Floyd - Maplewood MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

B32B003/18
B32B027/00
B29C047/06

US Classification:

428201, 428354, 428515, 428516, 428517

Abstract:

Described is a polymeric coextruded multilayer web, the web comprising: at least two layers that are discontinuous in the cross-web direction, each layer comprising a plurality of distinct phases that are substantially continuous in the down-web direction; and at least one layer that is substantially continuous in both the cross-web and down-web directions; wherein said web has an x-axis that is in the cross-web direction of the web, a y-axis that is in the down-web direction of the web and a z-axis that is in the thickness direction of the web, and wherein the substantially continuous layer(s) lacks weld lines in the y-z plane of the web.

US Patent:

7338692, Mar 4, 2008

Filed:

Sep 12, 2003

Appl. No.:

10/661908

Inventors:

Samantha D. Smith - Minneapolis MN, US
Gene H. Shipman - Cottage Grove MN, US
Robert M. Floyd - Maplewood MN, US
Harold Todd Freemyer - Woodbury MN, US
Steven J. Hamrock - Stillwater MN, US
Michael A. Yandrasits - Hastings MN, US
David G. S. Walton - Honolulu HI, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

B32B 1/08
B32B 27/06
B32B 27/28
B32B 3/12
B32B 3/26

US Classification:

428 369, 428 357, 4283044, 4283155, 428421

Abstract:

Shaped microporous articles are produced from polyvinylidene fluoride (PVDF) and nucleating agents using thermally induced phase separation (TIPS) processes. The shaped microporous article is oriented in at least one direction at a stretch ratio of at least approximately 1. 1 to 1. The shaped article may also comprise a diluent, glyceryl triacetate. The shaped microporous article may also have the micropores filled with a sufficient quantity of ion conducting electrolyte to allow the membrane to function as an ion conductive membrane. The method of making a microporous article comprises the steps of melt blending polyvinylidene fluoride, nucleating agent and glyceryl triacetate; forming a shaped article of the mixture; cooling the shaped article to cause crystallization of the polyvinylidene fluoride and phase separation of the polyvinylidene fluoride and glyceryl triacetate; and stretching the shaped article in at least one direction at a stretch ratio of at least approximately 1. 1 to 1.

US Patent:

20040121142, Jun 24, 2004

Filed:

Dec 23, 2002

Appl. No.:

10/328676

Inventors:

Shinji Kimura - Sagamihara, JP
James Mrozinski - Oakdale MN, US
Robert Floyd - Maplewood MN, US
Jayshree Seth - Woodbury MN, US

International Classification:

B32B003/26

US Classification:

428/315700, 428/315500, 428/317900

Abstract:

There is provided an oil absorbing wipe material suitable for wiping a users' skin or hair and a method for their manufacture. The wipes comprise at least an oil absorbing porous film-like substrate of a crystalline thermoplastic material with at least 40 percent by weight of a nonparticulate filler. Generally, the wipe changes transparency or color (a change in L* of about 10 or more) when loaded with oil to provide an oil absorption indication functionality. The wipe is capable of forming a compact ball by crumpling to a diameter of 2.5 cm or less.

US Patent:

20040265565, Dec 30, 2004

Filed:

Jun 30, 2003

Appl. No.:

10/609808

Inventors:

Patrick Fischer - Saint Paul MN, US
Robert Floyd - Maplewood MN, US

International Classification:

B32B003/26

US Classification:

428/317900, 428/316600, 428/319300

Abstract:

Microporous articles are formed by solid-liquid phase separation from a diluent in combination with a thermoplastic polymer, flame retardant and a hindered amine synergist providing novel flame retardant articles. Such articles are useful in clothing, barriers, optical films in electronic devices (such as light reflective and dispersive films), printing substrates and electrical insulation.

US Patent:

20060147503, Jul 6, 2006

Filed:

Dec 30, 2004

Appl. No.:

11/026853

Inventors:

Robert Floyd - Maplewood MN, US

International Classification:

A61K 9/70

US Classification:

424443000

Abstract:

There is provided an oil absorbing wipe material suitable for wiping a users' skin or hair and a method for their manufacture. The wipes comprise at least an oil absorbing porous coextruded film of a crystalline thermoplastic material with a solid diluant containing crumpable layer and a generally nontacky layer. Generally, the wipe changes transparency or color when loaded with oil to provide an oil absorption indication functionality. The wipe is capable of forming a compact ball by crumpling a 10 cm by 10 cm sample to a diameter of 3.0 cm or less.

US Patent:

20060148915, Jul 6, 2006

Filed:

Dec 30, 2004

Appl. No.:

11/026852

Inventors:

Robert Floyd - Maplewood MN, US
Randall Swenson - River Falls WI, US
James Mrozinski - Oakdale MN, US

International Classification:

B32B 27/00
C08J 9/26

US Classification:

521061000, 428319300, 428319700, 428317900

Abstract:

Microporous materials and articles are disclosed. The microporous materials contain a polyolefin or olefinic polymer and a solid diluent in which the polymer is soluble at a temperature above the melting temperature of the polymer and that phase separates from the polymer at a temperature below the polymer crystallization temperature. The resulting material is a microporous material having a polymeric matrix with solid diluent present throughout. The invention is also directed to methods of forming the microporous material using thermally induced phase separation and subsequent processing.

US Patent:

20070065655, Mar 22, 2007

Filed:

Sep 19, 2005

Appl. No.:

11/229963

Inventors:

Robert Floyd - Maplewood MN, US
James Mrozinski - Oakdale MN, US

International Classification:

B32B 5/22
C08J 9/26

US Classification:

428317900, 521061000, 521063000

Abstract:

The present invention is a microporous film that includes a crystallizable polymer, a melting flame retardant additive, a non-melting nucleating agent, and a diluent.