Shahid K Qureshi

US Patent:

49314963, Jun 5, 1990

Filed:

Mar 24, 1989

Appl. No.:

7/328513

Inventors:

Shahid P. Qureshi - Piscataway NJ
Hugh C. Gardner - Somerville NJ
Richard H. Newman-Evans - Somerville NJ

Assignee:

Amoco Corporation - Chicago IL

International Classification:

C08L 8700

US Classification:

524612

Abstract:

Fiber-reinforced compositions comprising a structural fiber and a cyanate ester resin formulation having an N-substituted urea compound as a latent cure accelerator provide rapid-curing prepreg with good out-time characteristics. The prepreg may be used to form composite articles with good toughness and excellent retention of properties on extended exposure to moisture at elevated temperatures. C.

US Patent:

45672164, Jan 28, 1986

Filed:

Dec 22, 1983

Appl. No.:

6/564393

Inventors:

Shahid Qureshi - Edison NJ
Hugh C. Gardner - Somerville NJ

Assignee:

Union Carbide Corporation - Danbury CT

International Classification:

C08L 6300
C08K 300

US Classification:

523400

Abstract:

Described herein is a composition which contains bis(2,3-epoxycyclopentyl) ether, a specific group of hardeners and a specific group of thermoplastics. When cured, these compositions have improved tensile properties as compared to similar compositions which do not contain thermoplastics.

US Patent:

48618233, Aug 29, 1989

Filed:

Aug 3, 1988

Appl. No.:

7/205676

Inventors:

Shahid P. Qureshi - Piscataway NJ

Assignee:

Amoco Corporation - Chicago IL

International Classification:

C08L 8700

US Classification:

524606

Abstract:

Novel curable resin compositions are disclosed containing an aromatic cyanate ester and an allyl ether of a bisphenol as a modifier. These compositions provide improved prepregs and composites. Additional modifiers including epoxy resins and bismaleimides may be included.

US Patent:

55996299, Feb 4, 1997

Filed:

Mar 1, 1984

Appl. No.:

6/583359

Inventors:

Hugh C. Gardner - Somerville NJ
Shahid P. Qureshi - Edison NJ

Assignee:

Amoco Corporation - Chicago IL

International Classification:

B32B 2738

US Classification:

428413

Abstract:

Described herein is a composition comprising an epoxy resin containing at least one glycidyl amine group wherein the resin contains three or more epoxide groups per molecule and a particular aromatic amine hardener. These compositions possess the necessary balance of properties required for making prepreg and afford unreinforced castings with high moduli and strength.

US Patent:

45930562, Jun 3, 1986

Filed:

Jun 21, 1985

Appl. No.:

6/747189

Inventors:

Shahid P. Qureshi - Piscataway NJ
Hugh C. Gardner - Somerville NJ

Assignee:

Union Carbide Corporation - Danbury CT

International Classification:

C08G 5968
C08G 5950

US Classification:

523445

Abstract:

Curable thermosetting resin compositions comprising an epoxy resin having at least two 1,2-epoxy groups per molecule, an aromatic diamine hardener, and as a cure accelerator an aromatic trihydroxy compound are disclosed. The aromatic trihydroxy compound, such as for example, phloroglucinol, n-propyl gallate, or pyrogallol, improves the cure speed of the epoxy/aromatic diamine resin system, while at the same time producing cured compositions having excellent mechanical and thermal properties. The disclosed compositions find particular application in the preparation of composites by, e. g. , filament winding procedures.

US Patent:

52601218, Nov 9, 1993

Filed:

Aug 24, 1989

Appl. No.:

7/397987

Inventors:

Hugh C. Gardner - Hillsborough NJ
Shahid P. Qureshi - Piscataway NJ

Assignee:

Amoco Corporation - Chicago IL

International Classification:

B32B 1704
B32B 2702
B32B 2704
D03D 1500

US Classification:

428224

Abstract:

Matrix resin formulations comprising cyanate esters of phenol adducts of dicyclopentadiene, epoxy resins and particular thermoplastics, provide fiber reinforced composites with excellent toughness and hot/wet properties.

US Patent:

47742828, Sep 27, 1988

Filed:

Nov 20, 1986

Appl. No.:

6/932879

Inventors:

Shahid P. Qureshi - Piscataway NJ

Assignee:

Amoco Corporation - Chicago IL

International Classification:

C08G 6338

US Classification:

524606

Abstract:

Novel curable resin compositions are disclosed containing an aromatic cyanate ester and an allyl ether of a bisphenol as a modifier. These compositions provide improved prepregs and composites. Additional modifiers including epoxy resins and bismaleimides may be included.

US Patent:

50876570, Feb 11, 1992

Filed:

Feb 23, 1989

Appl. No.:

7/314165

Inventors:

Shahid P. Qureshi - Piscataway NJ
Richard H. Newman-Evans - Hillsborough NJ
Hugh C. Gardner - Hillsborough NJ

Assignee:

Amoco Corporation - Chicago IL

International Classification:

C08K 304
C08K 7112
C08K 7300

US Classification:

524508

Abstract:

Layered, fiber-reinforced composites are toughened by the use of thermosetting matrix resins including polyphenylene ether particles. The method of the invention is particularly effective in improving the toughness of composites based on thermoset matrix resins.