John J Kroll

8487034, Jul 16, 2013

Jan 16, 2009

12/355203

Kurt Emil Heikkila - Marine on St. Croix MN, US
John S. Kroll - Blaine MN, US
Rodney K. Williams - Stacy MN, US

Tundra Composites, LLC - White Bear Lake MN

B28B 1/00
C08K 3/10
C08K 3/36
C08K 3/40

524494, 264299, 524492, 524493

The invention relates to a hot melt dispensable polymeric composite and process for making and using the composite. Particulates of adequate particle size are mixed with a polymer that exhibits low viscosities at temperatures typically provided by hot-melt glue guns to form rods that vary significantly in density from the base polymer. Novel articles can be manufactured by dispensing the composite from a glue gun into molds or by placement of the melt molding compound into preformed cavities within an end article.

20130130026, May 23, 2013

Jan 21, 2013

13/746045

Tundra Composites, LLC - White Bear Lake MN, US
Rodney K. Williams - Stacy MN, US
John S. Kroll - Blaine MN, US

TUNDRA COMPOSITES, LLC - White Bear Lake MN

H01F 1/01

428343, 252 6254

The invention relates to a polymer composite having magnetic properties that are enhanced or increased in the composite. Such properties include color, thermal conductivity, electrical conductivity, density, improved malleability and ductility viscoelastic and thermoplastic or injection molding properties.

20130157053, Jun 20, 2013

Feb 8, 2013

13/762714

TUNDRA COMPOSITES, LLC - White Bear Lake MN, US
John S. Kroll - Blaine MN, US
Rodney K. Williams - Stacy MN, US

TUNDRA COMPOSITES, LLC - White Bear Lake MN

H01F 41/00
B32B 5/16

428372, 264299

The invention relates to a hot melt dispensable polymeric composite and process for making and using the composite. Particulates of adequate particle size are mixed with a polymer that exhibits low viscosities at temperatures typically provided by hot-melt glue guns to form rods that vary significantly in density from the base polymer. Novel articles can be manufactured by dispensing the composite from a glue gun into molds or by placement of the melt molding compound into preformed cavities within an end article.

20220221628, Jul 14, 2022

Oct 11, 2021

17/498533

- White Bear Lake MN, US
Kurt Heikkila - Marine on the St. Croix MN, US
John Kroll - Blaine MN, US

Tundra Composites, LLC - White Bear Lake MN

G02B 5/128
C03C 12/02
C03C 25/46

A robust sintered retroreflective composite comprising, a core bead, a peripheral bead, and an interphase coating. The bead can be used in typical retroreflective indicia and uses.

20210382211, Dec 9, 2021

Nov 25, 2019

17/288083

John Kroll - Blaine MN, US

Tundra Composites, LLC - White Bear Lake MN

G02B 5/13
E01F 9/524

A polymer compatible retroreflective bead. The bead can be used in typical retroreflective uses such as paints tapes and films in highway marking and signs having high retroreflectivity both when initially installed and over the bead lifetime, allowing vehicle drivers to see highway marking lines at night and in adverse conditions during nighttime. When installed the retroreflective beads essentially retroreflect the base color of the highway marking material in which the retroreflective beads are embedded.

20210054212, Feb 25, 2021

Jul 14, 2020

16/928448

- White Bear Lake MN, US
John S. Kroll - Blaine MN, US

Tundra Composites, LLC - White Bear Lake MN

C08L 97/02
B27N 1/02
B27N 5/00
B27N 3/28
C08J 5/04
C08J 5/06
C08J 5/08
C08J 5/10
C08K 7/02
C08K 7/14
B29C 64/165
C08K 9/04
B29C 64/112
B29C 64/118
C08L 27/06

Embodiments herein relate to a composite material including about 10 to 80 wt. % of a polymer phase, the polymer phase comprising a thermoplastic polymer with a density of less than about 1.9 g-m-2; and about 20 to 90 wt. % of a dispersed mixed particulate phase, the dispersed mixed particulate phase comprising a mixed particulate and about 0.005 to 8 wt. % of a coating of at least one interfacial modifier. The mixed particulate including a portion of a reinforcing fiber and a portion of a particle. The composite material having a Young's modulus of greater than 700 MPa. In various embodiments, structural building components made from the composite are included as well as additive manufacturing components made from the composite. Other embodiments are also included herein.

20190194462, Jun 27, 2019

Jan 18, 2019

16/251301

- White Bear Lake MN, US
John S. Kroll - Blaine MN, US

C08L 97/02
B29C 64/165
C08K 7/14
B27N 1/02
B27N 5/00
B27N 3/28
C08K 9/04
C08J 5/04
C08J 5/06
C08J 5/08
C08J 5/10
C08K 7/02
C08L 27/06

Embodiments herein relate to a composite material including about 10 to 80 wt. % of a polymer phase, the polymer phase comprising a thermoplastic polymer with a density of less than about 1.9 g-m−2; and about 20 to 90 wt. % of a dispersed mixed particulate phase, the dispersed mixed particulate phase comprising a mixed particulate and about 0.005 to 8 wt. % of a coating of at least one interfacial modifier. The mixed particulate including a portion of a reinforcing fiber and a portion of a particle. The composite material having a Young's modulus of greater than 700 MPa. In various embodiments, structural building components made from the composite are included as well as additive manufacturing components made from the composite. Other embodiments are also included herein.

20160002468, Jan 7, 2016

Mar 13, 2014

14/771175

- White Bear Lake MN, US
John S. Kroll - Blaine MN, US

C08L 97/02
B29C 67/00
C08L 27/06

Embodiments herein relate to a composite material including about 10 to 80 wt. % of a polymer phase, the polymer phase comprising a thermoplastic polymer with a density of less than about 1.9 g-m-2; and about 20 to 90 wt. % of a dispersed mixed particulate phase, the dispersed mixed particulate phase comprising a mixed particulate and about 0.005 to 8 wt. % of a coating of at least one interfacial modifier. The mixed particulate including a portion of a reinforcing fiber and a portion of a particle. The composite material having a Young's modulus of greater than 700 MPa. In various embodiments, structural building components made from the composite are included as well as additive manufacturing components made from the composite.