IP Library › Granted Patent US 7,066,997
Granted Patent B2
US 7,066,997 · App. 10/476,017 · Granted Jun 27, 2006

Coal tar and hydrocarbon mixture pitch and the preparation and use thereof

Assignee: Koppers Delaware, Inc.
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Quick Facts
Patent No.
US 7,066,997
App. No.
10/476,017
Granted
Jun 27, 2006
Kind
B2
Abstract

A method of making the saturated aircraft brake preform using a coal tar pitch having a softening point in the range of about 160° C. to 240° C. Also, a product having natural rubber in the formulation and the method of making the product using a coal tar pitch having a softening point in the range of about 140° C. to 200° C. A mesophase pitch is formed from quinoline insoluble free coal tar pitch distillate from a high efficiency evaporative distillation process.

Claims (10)

1. A method of making a saturated aircraft brake preform comprising:

placing a carbon fiber preform under a vacuum;

heating the carbon fiber preform;

introducing coal tar pitch having a softening point in the range of about 160° C. to 240° C. into the carbon fiber preform;

pressurizing the coal tar pitch saturated carbon fiber preform with nitrogen;

cooling the saturated carbon fiber preform;

processing the saturated carbon fiber preform by chemical vapor infiltration.

2. The method of claim 1 wherein the coal tar pitch has a softening point in the range of about 170° C. to 220° C.

3. The method of claim 1 wherein the coal tar pitch has a softening point in the range of about 180° C. to 200° C.

4. A mesophase pitch formed from quinoline insoluble free coal tar pitch distillate from a high efficiency evaporative distillation process.

Assignments (10)
RELEASE (REEL 033591 / FRAME 0020) Recorded Jun 28, 2022
From: WELLS FARGO BANK, NATIONAL ASSOCIATION
To: KOPPERS DELAWARE, INC. (F/K/A KOPPERS INDUSTRIES OF DELAWARE, INC.); KOPPERS PERFORMANCE CHEMICALS INC. (F/K/A OSMOSE, INC.); KOPPERS INC. (F/K/A KOPPERS INDUSTRIES, INC); KOPPERS PERFORMANCE CHEMICALS NEW ZEALAND LIMITED (F/K/A OSMOSE NEW ZEALAND); OSMOSE UTILITIES SERVICES, INC.
Reel/Frame 060448/0192 →
RELEASE OF PATENT SECURITY INTERESTS Recorded Jun 20, 2022
From: PNC BANK, NATIONAL ASSOCIATION
To: KOPPERS DELAWARE, INC.; KOPPERS PERFORMANCE CHEMICALS INC. (F/K/A OSMOSE, INC.); KOPPERS UTILITY AND INDUSTRIAL PRODUCTS INC. (F/K/A COX INDUSTRIES, INC.); KOPPERS INC. (F/K/A KOPPERS INDUSTRIES, INC.)
Reel/Frame 060390/0207 →
SECURITY AGREEMENT Recorded Jun 20, 2022
From: KOPPERS DELAWARE, INC.; KOPPERS PERFORMANCE CHEMICALS INC.
To: PNC BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 060390/0246 →
PATENT, TRADEMARK AND COPYRIGHT SECURITY AGREEMENT Recorded Sep 20, 2017
From: KOPPERS, INC.; KOPPERS HOLDINGS INC.; KOPPERS DELAWARE, INC.; KOPPERS ASIA LLC; KOPPERS CONCRETE PRODUCTS, INC.; CONCRETE PARTNERS, INC.; KOPPERS PERFORMANCE CHEMICALS, INC.; KOPPERS RAILROAD STRUCTURES INC.; KOPPERS WORLD-WIDE VENTURES CORPORATION; KOPPERS VENTURES INC.; KOPPERS-NEVADA LIMITED-LIABILITY COMPANY; KOPPERS NZ LLC; WOOD PROTECTION MANAGEMENT LLC; WOOD PROTECTION LP
To: PNC BANK, NATIONAL ASSOCIATION
Reel/Frame 043920/0523 →
PATENT, TRADEMARK AND COPYRIGHT SECURITY AGREEMENT Recorded Aug 22, 2014
From: KOPPERS INC.; KOPPERS HOLDINGS INC.; KOPPERS DELAWARE, INC.; KOPPERS ASIA LLC; KOPPERS CONCRETE PRODUCTS, INC.; CONCRETE PARTNERS, INC.; KOPPERS WORLD-WIDE VENTURES CORPORATION; KOPPERS VENTURES LLC
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 033591/0020 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS AND TRADEMARKS Recorded Aug 21, 2014
From: PNC BANK, NATIONAL ASSOCIATION
To: KOPPERS INC.; KOPPERS DELAWARE, INC.
Reel/Frame 033586/0727 →
AMENDED AND RESTATED PATENT, TRADEMARK AND COPYRIGHT SECURITY AGREEMENT Recorded Nov 3, 2008
From: KOPPERS, INC.; KOPPERS DELAWARE, INC.
To: PNC BANK, NATIONAL ASSOCIATION
Reel/Frame 021773/0306 →
CHANGE OF NAME Recorded Dec 7, 2005
From: KOPPERS INDUSTRIES OF DELAWARE, INC.
To: KOPPERS DELAWARE, INC.
Reel/Frame 016865/0538 →
FIRST AMENDMENT TO PATENT, TRADEMARK AND COPYRIGHT SECURITY AGREEMENT Recorded Aug 17, 2005
From: KOPPERS INC.; KOPPERS REDEMPTION, INC.; WORLD-WIDE VENTURES CORPORATION; KOPPERS DELAWARE, INC.; KOPPERS CONCRETE PRODUCTS, INC.; CONCRETE PARTNERS, INC.; KOPPERS MAURITIUS; KOPPERS LUXEMBOURG S.A.R.L.
To: PNC BANK, NATIONAL ASSOCIATION
Reel/Frame 016412/0484 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 25, 2004
From: GOLUBIC, THOMAS A.; KRUPINSKI, KENNETH C.; SAVER, WILLIAM E.; SNYDER, DAVID R.; WOMBLES, ROBERT H.
To: KOPPERS INDUSTRIES OF DELAWARE, INC.
Reel/Frame 015276/0241 →
Continuity (2)
Continuation In Part 0985337200 · May 11, 2001
Related Publication 20040168612A1 · Sep 2, 2004