James Harold Barron

US Patent:

20030148098, Aug 7, 2003

Filed:

Dec 13, 2002

Appl. No.:

10/318848

Inventors:

Muhammad Shafi - Lake Jackson TX, US
Nikhil Verghese - Lake Jackson TX, US
Michael Cavitt - Lake Jackson TX, US
Cassandra Tijerina - Lake Jackson TX, US
James Barron - Brazoria TX, US

International Classification:

D02G003/00

US Classification:

428/375000, 428/299100

Abstract:

Sizing/finishing composition comprising poly(hydroxy amino ether), and a solubilizing/emulsifying agent present in an amount sufficient to solubilize or emulsify the polymer in water.

US Patent:

20040188883, Sep 30, 2004

Filed:

Dec 19, 2003

Appl. No.:

10/741218

Inventors:

James Barron - Brazoria TX, US
Muhammad Shafi - Lake Jackson TX, US
David Bank - Midland MI, US
James Oelberg - Saginaw MI, US
Robert Dion - Horgen, CH

International Classification:

B29C031/00

US Classification:

264/258000

Abstract:

A process for producing 2-dimensional and 3-dimensional near net shape prepregs suitable for use in preparing structural composite parts of complex shape, including (a) depositing at least about 13 volume percent of reinforcing fibers onto one side of a foraminous screen having a vacuum means positioned on the opposite side thereof which maintains the fibers in position on the one side of the screen, (b) depositing resin matrix material onto the same side of the foraminous screen as the reinforcing fibers above wherein the vacuum means positioned on the opposite side of the foraminous screen maintains the resin matrix material with the fibers in position on the one side of the screen, (c) heating the resin matrix material sufficiently to bond resin matrix material to the fiber at the surface of the screen, and (d) allowing the resin and fiber structure to cool such that a near net prepreg is formed. The prepreg is placed in a compression mold; and heated and consolidated to produce a uniform composite part.

US Patent:

60305754, Feb 29, 2000

Filed:

Nov 20, 1996

Appl. No.:

8/754608

Inventors:

James H. Barron - Brazoria TX
James Entringer - Angleton TX
Randy S. Moore - Lake Jackson TX

Assignee:

The Dow Chemical Company - Midland MI

International Classification:

B27N 304
B29C 7012
D04H 160

US Classification:

264517

Abstract:

An improvement in the preparation of fiber preforms in which binder and fibers are dispersed to contact on vacuum-supplied screens is disclosed, comprising particularly (a) selecting a particulate binder material which is solid at 25. degree. C; (b) heating the binder material, during initial contact with the fibers, to a viscosity and for a time which is the same as or proportional to 1,000 centipoise for one second; and (c) dispersing the binder material and the fibers such that the preform exhibits a variation in the ratio of fibers and binder which correlates to a coefficient of variation which is less than or equal to about 5 percent. The resulting preform shows superior compaction and uniformity of constitution even when it is prepared in sections or in asymmetric configurations. A wide variety of binders can be used, including thermoplastic and thermoset polymers, glasses, ceramics, metals, and the like, and the binder can also be selected from multi-component systems which are reactive with one another, such as epoxy-based systems, and/or reactive with a resin impregnant which may be subsequently introduced. In an alternative embodiment the preforms can be heated and pressed to make final composite articles, with or without direct application of a molding resin.