Search

Timothy D Krizan

from Wilmington, DE
Age ~67

Timothy Krizan Phones & Addresses

  • 2613 Pennington Dr, Wilmington, DE 19810 (302) 475-4234
  • Talleyville, DE
  • Minneapolis, MN
  • 2613 Pennington Dr, Wilmington, DE 19810

Publications

Us Patents

Blends Of High Temperature Resins Suitable For Fabrication Using Powdered Metal Or Compression Molding Techniques

View page
US Patent:
7758781, Jul 20, 2010
Filed:
May 20, 2008
Appl. No.:
12/154075
Inventors:
Mark R. Schmeckpeper - Kennett Square PA, US
Timothy D. Krizan - Wilmington DE, US
Assignee:
E.I. du Pont de Nemours and Company - Wilmington DE
International Classification:
C08L 67/02
C08L 79/08
B29C 43/02
US Classification:
264 77, 264248, 264275, 2642975, 26432816, 26433111, 26433119, 264531, 264532, 523201, 523205, 524401, 524403, 524404, 524405, 524413, 524433, 524435, 524441, 524442, 524444, 524447, 524449, 524493, 524494, 524495, 525538, 525178, 525179, 525432, 525436
Abstract:
The invention relates to a resin polymer blend comprising at least two dry blended, non-melt processible resin polyimide particulates, wherein the non-melt processible resin polyimide articulates are molded by compression molding.

Polyimide Resins For High Temperature Wear Applications

View page
US Patent:
7858687, Dec 28, 2010
Filed:
Jul 30, 2008
Appl. No.:
12/182571
Inventors:
Timothy D. Krizan - Wilmington DE, US
Assignee:
E.I. du Pont de Nemours and Company - Wilmington DE
International Classification:
C08K 3/34
US Classification:
524447, 524456
Abstract:
Polyimide resin compositions that contain an aromatic polyimide, graphite and a kaolin filler, are found to exhibit low wear and high thermal oxidative stability. Such compositions are especially useful in molded articles that are exposed to wear conditions at high temperatures such as aircraft engine parts.

Composite Parts For Airplane Engines

View page
US Patent:
8198356, Jun 12, 2012
Filed:
Aug 28, 2009
Appl. No.:
12/549462
Inventors:
John C. Dauer - Mason OH, US
Timothy D. Krizan - Wilmington DE, US
Martin W. Prellwitz - North Royalton OH, US
Assignee:
E I du Pont de Nemours and Company - Wilmington DE
International Classification:
C08K 3/24
C08K 3/04
C09C 1/44
C09C 1/46
C09C 1/40
C09C 1/42
US Classification:
524495, 524442, 524445, 524447, 524449, 524451, 524492, 524496, 524847, 428363, 428402, 4284735, 4284744
Abstract:
Disclosed herein is a composite part for an airplane engine comprising polymer selected from polyimide, polyamide-imide, polyether imides, polybenzimidazole, or blends thereof, and carbonaceous filler, which in combination provides thermal stability and wear resistance. Optionally, the composite may comprise particulate.

Polyimide Resins For High Temperature Wear Applications

View page
US Patent:
8324304, Dec 4, 2012
Filed:
Jul 30, 2008
Appl. No.:
12/182435
Inventors:
Robert Ray Burch - Exton PA, US
Timothy D. Krizan - Wilmington DE, US
Jesus G. Moralez - Wilmington DE, US
Assignee:
E I du Pont de Nemours and Company - Wilmington DE
International Classification:
C08L 79/00
C08L 79/08
C08K 3/00
C08K 3/34
US Classification:
524447, 524456, 524495, 524590, 524606, 524847
Abstract:
Polyimide resin compositions that contain an aromatic polyimide, graphite and a sepiolite filler, or a mixture of a sepiolite filler and a kaolin filler, are found to exhibit low wear and high thermal oxidative stability. Such compositions are especially useful in molded articles that are exposed to wear conditions at high temperatures such as aircraft engine parts.

Polyimide Resins For High Temperature Wear Applications

View page
US Patent:
8507615, Aug 13, 2013
Filed:
Oct 27, 2010
Appl. No.:
13/503378
Inventors:
Jesus G Moralez - Wilmington DE, US
Robert Ray Burch - Exton PA, US
Timothy D. Krizan - Wilmington DE, US
Lloyd Abrams - Hockessin DE, US
Assignee:
E I du Pont de Nemours and Company - Wilmington DE
International Classification:
C08G 73/10
C08G 73/12
C08L 79/08
US Classification:
525432, 525420, 525435, 525436
Abstract:
Polyimide resin compositions that contain an end-capped rigid aromatic polyimide, graphite and, optionally, a filler selected from sepiolite, attapulgite, kaolinite, or a mixture thereof, are found to exhibit low wear at high temperatures. Such compositions are especially useful in molded articles that are exposed to wear conditions at high temperatures such as aircraft engine parts.

Polymeric Particles

View page
US Patent:
20050164002, Jul 28, 2005
Filed:
May 6, 2003
Appl. No.:
10/429987
Inventors:
Timothy Krizan - Wilmington DE, US
Mark Schmeckpeper - Kennett Square PA, US
International Classification:
B32B005/16
B05D007/00
US Classification:
428407000, 428327000, 427222000
Abstract:
This invention relates to a polymeric particle, and in particular to a polymeric particle prepared by forming a polyimide in the presence of a particle of base polymer.

Blends Of High Temperature Resins Suitable For Fabrication Using Powdered Metal Or Compression Molding Techniques

View page
US Patent:
20050215715, Sep 29, 2005
Filed:
Dec 9, 2004
Appl. No.:
11/007957
Inventors:
Mark Schmeckpeper - Kennett Square PA, US
Timothy Krizan - Wilmington DE, US
International Classification:
C08F008/00
US Classification:
525191000
Abstract:
The invention relates to a resin blend comprising at least two dry blended, non-melt processible resin particulates, wherein the at least two dry blended, non-melt processible resin particulates are molded by compression molding. The invention also relates to a process for producing a resin blend comprising mixing at least two non-melt processible resin particulates by dry blending and molding the mixture by compression molding. Another aspect of the invention is a resin blend comprising at least two blended, non-melt processible polyimide resin particulates, wherein the at least two blended, non-melt processible resin particulates are molded by compression molding.

Resin Compositions With A Low Coefficient Of Thermal Expansion And Articles Therefrom

View page
US Patent:
20070021547, Jan 25, 2007
Filed:
May 30, 2006
Appl. No.:
11/443230
Inventors:
Hiroyuki Suzuki - Utsunomiya-Shi, JP
Satoru Sekiguchi - Utsunomiya-Shi, JP
Timothy Krizan - Wilmington DE, US
International Classification:
C08K 3/04
US Classification:
524496000, 524600000
Abstract:
This invention generally relates to resin compositions having a reduced coefficient of thermal expansion. Specifically, this invention relates to resin compositions wherein the lower coefficient of thermal expansion is achieved by addition and mixing of at least one filler material to the resin composition in question. This invention further relates to articles made from such resin compositions having a reduced coefficient of thermal expansion. This invention also relates to a method for making such articles.
Timothy D Krizan from Wilmington, DE, age ~67 Get Report