The present invention provides an air filter made from a composite comprising a substrate and a polymeric foam. The air filter can comprise a single layer. The foam has a density gradient where the lower density upstream portion of the filter can trap larger particles, allowing smaller particles to penetrate into the filter and be trapped by the higher density downstream portion of the filter. The density gradient arises from intercalation of the polymeric foam with the substrate. The composite design provides comparable or improved filtration efficiencies compared to the complex prior art air filters which rely on multiple layers to provide a density gradient.
Colored Reinforced Articles Of Manufacture And Method Of Making The Same
The present invention provides a colored reinforced article of manufacture having a substantially uniform distribution of color. The colored reinforced article of manufacture comprises a fiber-reinforced thermosetting resin matrix and a non-appertured colored veil in the thermosetting resin matrix.
Heat And Flame-Resistant Materials And Upholstered Articles Incorporating Same
James Small - Greensboro NC, US John Walton - Greensboro NC, US Samuel Gillette - Burlington NC, US Ladson Fraser - High Point NC, US Zareh Mikaelian - Greensboro NC, US
A mattress, foundation, or other upholstered sleep product or article includes a core and barrier material surrounding the core. The barrier material includes flame and heat-resistant material that is configured to prevent combustion of the core when the upholstered article is impinged with a gas flame according to California Technical Bulletin 603 of the State of California Department of Consumer Affairs. The barrier material may include an intumescent material that is configured to swell and char in the presence of a flame so as to form a barrier to the flame and to heat generated by the flame.
Heat And Flame-Resistant Materials And Upholstered Articles Incorporating Same
James Douglas Small - Greensboro NC, US John H. Walton - Greensboro NC, US Samuel Mark Gillette - Burlington NC, US Ladson L. Fraser - High Point NC, US Zereh Mikaelian - Greensboro NC, US
A mattress, foundation, or other upholstered sleep product or article includes a core and barrier material surrounding the core. The barrier material includes flame and heat-resistant material that is configured to prevent combustion of the core when the upholstered article is impinged with a gas flame according to California Technical Bulletin 603 of the State of California Department of Consumer Affairs. The barrier material may include an intumescent material that is configured to swell and char in the presence of a flame so as to form a barrier to the flame and to heat generated by the flame.
Heat And Flame-Resistant Materials And Upholstered Articles Incorporating Same
James Small - Greensboro NC, US John Walton - Greensboro NC, US Samuel Gillette - Burlington NC, US Ladson Fraser - High Point NC, US Zareh Mikaelian - Greensboro NC, US
A mattress, foundation, or other upholstered sleep product or article includes a core and barrier material surrounding the core. The barrier material includes flame and heat-resistant material that is configured to prevent combustion of the core when the upholstered article is impinged with a gas flame according to California Technical Bulletin 603 of the State of California Department of Consumer Affairs. The barrier material may include an intumescent material that is configured to swell and char in the presence of a flame so as to form a barrier to the flame and to heat generated by the flame.
Colored Reinforced Articles Of Manufacture And Method Of Making The Same
Richard Bliton - Greensboro NC, US Ladson Fraser - High Point NC, US William Phillips - Greensboro NC, US Richard Vockel - Oak Ridge NC, US
International Classification:
B29C 70/52
US Classification:
156166000, 156177000, 428364000
Abstract:
The present invention provides a colored reinforced article of manufacture having a substantially uniform distribution of color. The colored reinforced article of manufacture comprises a fiber-reinforced thermosetting resin matrix and a non-appertured colored veil in the thermosetting resin matrix.
Process For Making A Treated Veil And A Product Produced By The Process
Richard L. Vockel - Oak Ridge NC Ladson L. Fraser - Greensboro NC
Assignee:
Precision Fabrics Group, Inc. - Greensboro NC
International Classification:
B29C 6700
US Classification:
264136
Abstract:
Disclosed is a veil treated with a resin-affecting compound such as a mold release agent, a UV stabilizer, or a UV absorber for use in fiber reinforced plastic (FRP) parts. Also disclosed is a process for altering the chemical or physical properties of a resin during a production process comprising the steps of: (a) treating a veil with at least one resin-affecting compound, alone or in combination with other resin-affecting compounds; (b) applying the treated veil to a resin; (c) forming an article from said veil and said resin; and (d) curing the article.
Process Of Making A Phosphorescent Fiber Reinforced Plastic Article
Richard L. Vockel - Oak Ridge NC Robert E. Myers - Nassau Bay TX Ladson L. Fraser - Greensboro NC
Assignee:
Precision Fabrics Group, Inc. - Greensboro NC
International Classification:
B44C 100 D04H 308 C09J 502 B29C 4706
US Classification:
156 67
Abstract:
A phosphorescent fiber reinforced plastic article comprising a fabric carrying a phosphorescent material encapsulated on a surface of a cured fiber reinforced plastic material made by a variety of processes including, but not limited to, pultrusion, compression molding, filament winding, contact molding, resin transfer molding, a continuous panel process, or structural reaction injection molding.