Gregory S Copeland

US Patent:

7629420, Dec 8, 2009

Filed:

Feb 6, 2007

Appl. No.:

11/671494

Inventors:

Bobby G. Dawkins - Charlotte NC, US
Michael Gruender - Charlotte NC, US
Gregory S. Copeland - Tega Cay SC, US
Jerry Zucker - Charleston SC, US

Assignee:

PBI Performance Products, Inc. - Charlotte NC

International Classification:

C08L 77/06
C08L 79/06
C08L 79/08

US Classification:

525435, 525420, 525425, 525432, 525436, 525931

Abstract:

A polymer blend comprises PBI, PAEK, and PEI. A method of making the foregoing blend comprises the steps of intimately blending PBI, PAEK, and PEI by dissolving PBI, PAEK, and PEI in a strong acid or melt blending PBI, PAEK, and PEI.

US Patent:

7915351, Mar 29, 2011

Filed:

Feb 5, 2007

Appl. No.:

11/671169

Inventors:

Bobby G. Dawkins - Charlotte NC, US
Michael Gruender - Charlotte NC, US
Gregory S. Copeland - Tega Cay SC, US
Tim Hsu - State College PA, US

Assignee:

PBI Performance Products, Inc. - Charlotte NC

International Classification:

C08L 65/00
C08L 79/00
C08L 79/04

US Classification:

525417, 525420, 525435, 525471, 525534

Abstract:

A process for producing a solution blend of a polybenzimidazole (PBI) and a polyetherketoneketone (PEKK). The PBI is mixed with sulfuric acid at a temperature between 40 C. and 80 C. for 30 minutes to 2 hours to produce a PBI solution then cooled to room temperature to form a cooled PBI solution. Then PEKK is added to the cooled PBI solution to form a mixture and that mixture is stirred from 30 minutes to 2 hours at room temperature to form a stirred mixture. The stirred mixture is poured into an excess of water being stirred swiftly to form an aqueous mixture. The aqueous mixture is filtered to produce a blend. The blend is washed with water and dried. The resulting blend can yield a blend in all proportion from 1/99 PBI/PEKK to 99/1 PBI/PEKK.

US Patent:

8309662, Nov 13, 2012

Filed:

Jul 22, 2010

Appl. No.:

12/841277

Inventors:

Bobby G. Dawkins - Charlotte NC, US
Michael Gruender - Charlotte NC, US
Gregory S. Copeland - Tega Cay SC, US
Tim Hsu - State College PA, US

Assignee:

PBI Performance Products, Inc. - Charlotte NC

International Classification:

C08L 65/00
C08L 79/00
C08L 79/04

US Classification:

525417, 525420, 525435, 525471, 525534

Abstract:

A process for producing a solution blend of a polybenzimidazole (PBI) and a polyetherketoneketone (PEKK). The PBI is mixed with sulfuric acid at a temperature between 40 C. and 80 C. for 30 minutes to 2 hours to produce a PBI solution then cooled to room temperature to form a cooled PBI solution. Then PEKK is added to the cooled PBI solution to form a mixture and that mixture is stirred from 30 minutes to 2 hours at room temperature to form a stirred mixture. The stirred mixture is poured into an excess of water being stirred swiftly to form an aqueous mixture. The aqueous mixture is filtered to produce a blend. The blend is washed with water and dried. The resulting blend can yield a blend in all proportion from 1/99 PBI/PEKK to 99/1 PBI/PEKK.

US Patent:

8420732, Apr 16, 2013

Filed:

Dec 21, 2010

Appl. No.:

12/974089

Inventors:

Bobby G. Dawkins - Charlotte NC, US
Barrie Davies - Waxhaw NC, US
Gregory S. Copeland - Tega Cay SC, US

Assignee:

PBI Performance Products, Inc. - Charlotte NC

International Classification:

C08L 77/00

US Classification:

524606, 524 86, 524115, 524183

Abstract:

A polybenzimidazole solution comprises a polybenzimidazole dissolved in an ionic liquid excluding 1-butyl-3-methylimidazolium chloride, 1-butyl-3-methylimidazolium hydroxide, and 1-butyl-3-methylimidazolium tetrafluoroborate. The ionic liquid may be a salt having a melting point less than or equal to 100 C. The salt having a cation (+) and an anion (−). The cation may be selected from the group consisting of: choline, ammoniums, phosphoniums, pyridiniums, pyrrolidiniums, morpholimiums, pyrazoliums, sulfoniums, imidazoliums. The anion may be selected from the group consisting of: halides, bis(triflyl)amide, CFSO, hydroxides, nitrates, sulfates, acetates, cyanates, aluminates, borates, phosphates, phosphorates, alkylsulfates, tosylates.

US Patent:

8475925, Jul 2, 2013

Filed:

Jun 20, 2011

Appl. No.:

13/163836

Inventors:

John C. Moore - Camarillo CA, US
Gregory S. Copeland - Tega Cay SC, US
Michael Gruender - Charlotte NC, US

Assignee:

PBI Performance Products, Inc. - Charlotte NC

International Classification:

B32B 27/38
B32B 27/28
B32B 27/06
C08G 59/18
C09D 163/00
C09D 179/00

US Classification:

428414, 428413, 525423, 525533

Abstract:

A coating is a mixture of polybenzimidazole polymer and an epoxy. The coating may further include a primer underlying the coating. The coating may further include an adhesion promoter. A solution includes a polybenzimidazole polymer, an epoxy resin, an initiator, and a carrier solvent. The solution may further include a stabilizer and/or an adhesion promoter.

US Patent:

20110129601, Jun 2, 2011

Filed:

Dec 1, 2010

Appl. No.:

12/957601

Inventors:

John C. Moore - Camarillo CA, US
Gregory S. Copeland - Tega Cay SC, US
Michael Gruender - Charlotte NC, US

International Classification:

B05D 3/12
C08L 39/00
C08F 2/46
C09D 139/00
B05D 3/02
B44C 1/22

US Classification:

427240, 525420, 522182, 524514, 4273722, 216 52

Abstract:

PBI compositions include solutions comprising PBI and acrylate monomer and coatings comprising PBI and polyacrylate. The solutions may also include polymerization initiator, solvent, co-polymers. The coatings are thermally resistant, electrically insulating (dielectric), and adhesive. The PBI compositions are used in the manufacture of microelectronics and related products. Methods for applying the PBI compositions are also discussed.

US Patent:

20110189484, Aug 4, 2011

Filed:

Jan 27, 2011

Appl. No.:

13/014976

Inventors:

Karin M. Hudson - Charlotte NC, US
Gregory S. Copeland - Tega Cay SC, US
Michael Gruender - Charlotte NC, US

International Classification:

C08G 73/18
C08J 9/00
C08K 5/41
C08K 5/20
C08K 5/3432
C08K 5/3415
B32B 5/00

US Classification:

428402, 521 50, 521 89, 521 90, 521 94, 521 88, 521 82

Abstract:

A porous polybenzimidazole (PBI) particulate resin is disclosed. This resin is easily dissolved at ambient temperatures and pressures. The resin is made by: dissolving a virgin PBI resin in a highly polar solvent; precipitating the dissolved PBI in a bath; and drying the precipitated PBI, the dried precipitated PBI being porous. The porous PBI resin may be dissolved by: mixing a porous PBI resin with a highly polar solvent at ambient temperatures and pressures to form a solution.

US Patent:

20120142830, Jun 7, 2012

Filed:

Feb 9, 2012

Appl. No.:

13/369347

Inventors:

Bobby G. Dawkins - Charlotte NC, US
Barrie Davis - Waxhaw NC, US
Gregory S. Copeland - Tega Cay SC, US

International Classification:

C08K 5/3445
C08L 79/04

US Classification:

524105, 524606

Abstract:

A polybenzimidazole solution comprises a polybenzimidazole dissolved in an ionic liquid excluding 1-butyl-3-methylimidazolium chloride, 1-butyl-3-methylimidazolium hydroxide, and 1-butyl-3-methylimidazolium tetrafluoroborate.