David B Curliss

US Patent:

7338684, Mar 4, 2008

Filed:

Feb 14, 2005

Appl. No.:

11/057462

Inventors:

David B. Curliss - Beavercreek OH, US
Jason E. Lincoln - Englewood OH, US

Assignee:

Performance Polymer Solutions, Inc. - Centerville OH

International Classification:

B05D 1/12

US Classification:

427180, 427203, 427206, 4272492, 4272494, 977843, 4234473

Abstract:

A process for producing-vapor grown carbon fiber (VGCF) reinforced continuous fiber performs for the manufacture of articles with useful mechanical, electrical, and thermal characteristics is disclosed. Continuous fiber preforms are treated with a catalyst or catalyst precursor and processed to yield VGCF produced in situ resulting in a highly entangled mass of VGCF infused with the continuous fiber preform. The resulting continuous fiber preforms are high in volume fraction of VGCF and exhibit high surface area useful for many applications. Furthermore, this invention provides for a continuous fiber preform infused with VGCF so that the carbon nanofibers are always contained within the fiber preform. This eliminates the processing steps for isolated carbon nanofibers reported in other carbon nanofiber composite approaches and therefore greatly reduces risk of environmental release and exposure to carbon nanofibers.

US Patent:

7605223, Oct 20, 2009

Filed:

Sep 22, 2005

Appl. No.:

11/233187

Inventors:

Jason E. Lincoln - Englewood OH, US
David B. Curliss - Beavercreek OH, US

Assignee:

Performance Polymer Solutions, Inc. - Centerville OH

International Classification:

C08G 73/10
C08G 69/26
C08G 73/12
C08G 73/14

US Classification:

528340, 528345, 528347, 528348, 528350, 528353

Abstract:

The present invention relates to novel imide oligomer compositions, polyimides formed therefrom, and methods for making and using the same. In particular, the invention relates to novel polyimide oligomers comprising 3,3′,4,4′-benzophenone tetracarboxylic dianhydride (BTDA), 2-(3,4-dicarboxy phenyl)-1-phenylacetylene anhydride (PE), and a mixture of 1,3-diaminobenzene and 4,4′-(1,3-phenylenediisopropylidene) bisaniline. The polyimide oligomers demonstrate low melt viscosity (these resins are melt processable) while retaining exceptional thermo-oxidative stability, high glass transition temperature, and good mechanical properties in the cured state.

US Patent:

7927701, Apr 19, 2011

Filed:

Jan 18, 2008

Appl. No.:

12/016571

Inventors:

David B. Curliss - Beavercreek OH, US
Jason E. Lincoln - Englewood OH, US

Assignee:

Performance Polymer Solutions, Inc. - Moraine OH

International Classification:

B32B 9/00

US Classification:

428408, 4234471

Abstract:

This invention provides vapor grown carbon fiber (VGCF) reinforced continuous fiber performs for the manufacture of articles with useful mechanical, electrical, and thermal characteristics. Continuous fiber preforms are treated with a catalyst or catalyst precursor and processed to yield VGCF produced in situ resulting in a highly entangled mass of VGCF infused with the continuous fiber preform. The resulting continuous fiber preforms are high in volume fraction of VGCF and exhibit high surface area useful for many applications. Furthermore, this invention provides for a continuous fiber preform infused with VGCF so that the carbon nanofibers are always contained within the fiber preform. This eliminates the processing steps for isolated carbon nanofibers reported in other carbon nanofiber composite approaches and therefore greatly reduces risk of environmental release and exposure to carbon nanofibers.

US Patent:

20090220409, Sep 3, 2009

Filed:

Mar 3, 2008

Appl. No.:

12/041504

Inventors:

David B. CURLISS - Beavercreek OH, US
Jason E. Lincoln - Englewood OH, US

Assignee:

Performance polymer Solutions, Inc. - Centerville OH

International Classification:

D01F 9/127
D01F 9/133
B82B 1/00
B82B 3/00

US Classification:

4234472, 4234471, 422149, 977843, 977742

Abstract:

This invention provides a continuous process for the growth of vapor grown carbon fiber (VGCNT) reinforced continuous fiber preforms for the manufacture of articles with useful mechanical, electrical, and thermal characteristics. Continuous fiber preforms are treated with a catalyst or catalyst precursor and processed to yield VGCNT produced in situ resulting in a highly entangled mass of VGCNT infused with the continuous fiber preform. The continuous process disclosed herein provides denser and more uniform carbon nanotubes and provides the opportunity to fine-tune the variables both within an individual preform and between different preforms depending on the characteristics of the carbon nanotubes desired. The resulting continuous fiber preforms are essentially endless and are high in volume fraction of VGCNT and exhibit high surface area useful for many applications. The invention also provides for composites made from the preforms.

US Patent:

7041778, May 9, 2006

Filed:

May 18, 2004

Appl. No.:

10/849634

Inventors:

David B. Curliss - Beavercreek OH, US
Jason E. Lincoln - Englewood OH, US
Katie E. Thorp - Tipp City OH, US

Assignee:

The United States of America as represented by the Secretary of the Air Force - Washington DC

International Classification:

C08G 73/10

US Classification:

528353, 528125, 528126, 528128, 528172, 528173, 528174, 528176, 528182, 528183, 528188, 528220, 528229, 528350, 528351

Abstract:

A novel polyimide resin consisting essentially of 3,3′,4,4′-benzophenonetetracarboxylic dianhydride (BTDA), 3,4,3′,4′-biphenyltetracarboxylic dianhydride (BPDA), 2,2 bis (3′,4′-dicarboxy phenyl) hexafluoro propane dianhydride (6FDA), 2-(3,4-dicarboxyphenyl)-1-phenylacetylene anhydride (4-PEPA) and an aromatic diamine.

US Patent:

20170205172, Jul 20, 2017

Filed:

Jan 17, 2017

Appl. No.:

15/407914

Inventors:

- Columbia Falls MT, US
David Brian Curliss - Beavercreek OH, US

International Classification:

F41A 21/04
F41A 21/16
F41A 21/20

Abstract:

A composite multi-lobe barrel is disclosed for directing the path of a dischargeable projectile. The multi-lobe barrel incorporates a plurality of longitudinal stiffening rods into a composite overwrap around an inner liner to enhance axial stiffness. The barrel is comprised of an inner liner defining an axial bore; a plurality of polymer matrix composite (PMC) stiffening rods equidistantly disposed around the inner liner and a PMC outer shell enclosing the stiffening rods. In one embodiment, a PMC inner wrap surrounds and is in direct contact with the inner liner, with the stiffening rods arranged equidistantly around the inner wrap, with this structure enclosed by a PMC outer shell.

US Patent:

20160265863, Sep 15, 2016

Filed:

Mar 11, 2016

Appl. No.:

15/067481

Inventors:

- Columbia Falls MT, US
David Brian Curliss - Beavercreek OH, US

International Classification:

F41A 21/20
F41F 1/06

Abstract:

A composite barrel assembly for a gun, such as a muzzle-loading mortar for fin-stabilized projectiles. The composite construction of the barrel has a plurality of generally concentric layers built-up around a rigid supporting liner which may be fabricated from any of several metal or ceramic compositions. An inner thermal barrier coating of inorganic glass, metal refractory alloy, chromium alloy, functionally graded material or ceramic is disposed within the liner. An overwrap layer of continuous fibers embedded in a matrix surrounds the liner. The matrix is either a resin, polymer, ceramic, glass or metal. An outer shell of continuous fibers embedded in a high temperature polymer matrix surrounds the overwrap. When the liner is made from a metal-based composition, an outer thermal barrier coating may be applied in between the liner and the overwrap.