Andrew J Peterson

US Patent:

20180169977, Jun 21, 2018

Filed:

Jun 10, 2016

Appl. No.:

15/735762

Inventors:

- St. Paul MN, US
Siegmund Papp - Woodbury MN, US
Andrew J. Peterson - White Bear Lake MN, US

International Classification:

B29C 70/66
B29C 70/44
E21B 17/01

Abstract:

Buoyancy modules () are made from a foam composition that includes a combination of a thermally fusable powder and glass microspheres heated in a manner that provides a hardened syntactic foam having both low density and a high degree of compressive strength. An outer barrier () may enclose the buoyancy module.

US Patent:

20160264839, Sep 15, 2016

Filed:

Oct 22, 2014

Appl. No.:

15/031448

Inventors:

- Saint Paul MN, US
Yong K. Wu - Woodbury MN, US
Ignatius A. Kadoma - Cottage Grove MN, US
Michael D. Crandall - North Oaks MN, US
Amor A. Calubayan - Woodbury MN, US
Andrew J. Peterson - White Bear Lake MN, US

International Classification:

C09K 8/467
C04B 28/04
E21B 33/14
C04B 16/12

Abstract:

A well cement composition includes a hydraulic well cement and multi-component fibers having at least a first polymeric composition and a second polymeric composition. At least a portion of the external surfaces of the multi-component fibers includes the first polymeric composition, and the first polymeric composition includes an ethylene-methacrylic acid or ethylene-acrylic acid copolymer. A method of cementing a subterranean well is also described. The method includes introducing the well cement composition into a wellbore, wherein the well cement composition further comprises water, and forming a cured cement in the wellbore.

US Patent:

20140138305, May 22, 2014

Filed:

Jul 5, 2012

Appl. No.:

14/131352

Inventors:

Michael D. Crandall - North Oaks MN, US
Ignatius A. Kadoma - Cottage Grove MN, US
Andrew J. Peterson - White Bear Lake MN, US
Bruce A. Sventek - Woodbury MN, US
Yong K. Wu - Woodbury MN, US

International Classification:

D04H 1/541
B24D 11/02

US Classification:

2105021, 442411, 442334, 51298, 264126

Abstract:

An article including multi-component fibers and particles is disclosed. The multi-component fibers include at least a first polymeric composition and a second polymeric composition, are adhered together, and are non-fusing at a temperature of at least 110 C. At least a portion of the external surfaces of the multi-component fibers includes the first polymeric composition. Particles are adhered or directly attached to the first polymeric composition on the external surfaces of at least some of the multi-component fibers along their lengths. The particles include at least one of activated carbon, superabsorbent polymer particles, and abrasive particles. In some embodiments, the particles are distributed throughout the thickness of a web of the multi-component fibers. A method of making the articles is also disclosed.

US Patent:

20140141676, May 22, 2014

Filed:

Jul 5, 2012

Appl. No.:

14/131342

Inventors:

Michael D. Crandall - North Oaks MN, US
Ignatius A. Kadoma - Cottage Grove MN, US
Andrew J. Peterson - White Bear Lake MN, US
Yong K. Wu - Woodbury MN, US

Assignee:

3M INNOVATIVE PROPERTIES COMPANY - St. Paul MN

International Classification:

D04H 1/541
D04H 1/413

US Classification:

442347, 442411, 264103

Abstract:

An article comprising hollow ceramic microspheres and multi-component fibers is disclosed. The multi-component fibers are adhered together, and the hollow ceramic microspheres are adhered to external surfaces of the multi-component fibers. A method of making the article and use of the article for insulation are also disclosed.