Patent application number | Description | Published |
20090095400 | ARTICLES AND METHODS OF MASKING OR PROTECTING A SUBSTRATE - A protection sheet and method of protecting a substrate is disclosed. In an embodiment, the protection sheet comprises an adhesive coated nonwoven material. In an embodiment a surface of the protection sheet captures and retains paint overspray, dust, dirt and other contaminants so as to provide a cleaner paint job. In an embodiment the protection sheet may be laminated to a second nonwoven or woven material to allow clean removal after extended use. The protection sheet may be used to protect horizontal or vertical substrates, and is particularly suited to protect the surfaces of a paint booth used in automotive spray-painting operations. | 04-16-2009 |
20100229516 | PLEATED FILTER WITH BIMODAL MONOLAYER MONOCOMPONENT MEDIA - A pleated filter is made from a monocomponent monolayer nonwoven web containing a bimodal mass fraction/fiber size mixture of intermingled larger size and smaller size continuous monocomponent polymeric fibers of the same polymeric composition. Rows of pleats are formed in the nonwoven web, and the pleated web is cut to a desired size and shape to provide a filter element containing a self-supporting porous monocomponent monolayer matrix of fibers bonded to one another at least some points of fiber intersection and having an average initial submicron efficiency of at least 15% at a 1.52 meters/sec face velocity. The filter element is deformation resistant without requiring stiffening layers, bicomponent fibers or other reinforcing measures in the filter media layer. | 09-16-2010 |
20100258967 | FIBROUS WEB COMPRISING MICROFIBERS DISPERSED AMONG BONDED MELTSPUN FIBERS - A nonwoven fibrous web comprising a matrix of continuous meltspun fibers bonded to a coherent self-sustaining form, and separately prepared microfibers dispersed among the meltspun fibers. The microfibers may have median diameters less than one or two micrometers. A method for preparing such a nonwoven fibrous web comprises establishing a stream of continuous oriented meltspun fibers having a longitudinal axis, establishing a stream of meltblown microfibers that exit a meltblowing die at a point near the stream of meltspun fibers, the meltblown stream being aimed to merge with the meltspun stream and having a longitudinal axis that forms an angle of between 0 and 90 degrees to the longitudinal axis of the meltspun stream, capturing the meltblown fibers in the stream of meltspun fibers, and collecting the merged stream as a web on a collector spaced near the intersection point of the meltspun and meltblown streams. | 10-14-2010 |
20110000845 | HIGH LOFT SPUNBONDED WEB - Herein are disclosed high loft spunbonded webs that are substantially free of crimped fibers and gap-formed fibers. The webs exhibit a solidity of from less than 8.0% to about 4.0% and a ratio of Effective Fiber Diameter to Actual Fiber Diameter of at least 1.40. Also disclosed are methods of making such webs. | 01-06-2011 |
20110074060 | MOLDED MONOCOMPONENT MONOLAYER RESPIRATOR WITH BIMODAL MONOLAYER MONOCOMPONENT MEDIA - A molded respirator is made from a monocomponent monolayer nonwoven web containing a bimodal mass fraction/fiber size mixture of intermingled continuous monocomponent polymeric microfibers and larger size fibers of the same polymeric composition. The respirator is a cup-shaped porous monocomponent monolayer matrix whose matrix fibers are bonded to one another at least some points of fiber intersection. The matrix has a King Stiffness greater than 1 N. The respirator may be formed without requiring stiffening layers, bicomponent fibers, or other reinforcement in the filter media layer. | 03-31-2011 |
20110132374 | MOLDED MONOCOMPONENT MONOLAYER RESPIRATOR - A molded respirator is made from a monocomponent monolayer nonwoven web of continuous charged monocomponent meltspun partially crystalline and partially amorphous oriented fibers of the same polymeric composition that have been bonded to form a coherent and handleable web which further may be softened while retaining orientation and fiber structure. The respirator is a cup-shaped porous monocomponent monolayer matrix whose matrix fibers are bonded to one another at at least some points of fiber intersection. The matrix has a King Stiffness greater than 1 N. The respirator may be formed without requiring stiffening layers, bicomponent fibers, or other reinforcement in the filter media layer. | 06-09-2011 |
20110185903 | PLEATED FILTER WITH MONOLAYER MONOCOMPONENT MELTSPUN MEDIA - A pleated filter is made from a monocomponent monolayer nonwoven web of continuous monocomponent meltspun partially crystalline and partially amorphous oriented fibers of the same polymeric composition that are bonded to form a coherent and handleable web having a Gurley Stiffness of at least 100 mg and which further may be softened while retaining orientation and fiber structure. Rows of pleats are formed in the nonwoven web, and the web is cut to a desired size and shape to provide a pleated filter element containing a self-supporting porous monocomponent monolayer matrix of fibers bonded to one another at least some points of fiber intersection and having an average initial submicron efficiency of at least 15% at a 1.52 meters/sec face velocity. The filter element is deformation resistant without requiring stiffening layers, bicomponent fibers, adhesive or other reinforcement in the filter media layer. | 08-04-2011 |
20110266718 | Flat-Fold Respirator With Monocomponent Filtration/Stiffening Monolayer - A flat-fold respirator is made from a stiff filtration panel joined to the remainder of the respirator through at least one line of demarcation. The panel contains a porous monocomponent monolayer nonwoven web that contains charged intermingled continuous monocomponent polymeric fibers of the same polymeric composition and that has sufficient basis weight or inter-fiber bonding so that the web exhibits a Gurley Stiffness greater than 200 mg and the respirator exhibits less than 20 mm H | 11-03-2011 |
20120090780 | ARTICLES AND METHODS OF MASKING OR PROTECTING A SUBSTRATE - A protection sheet and method of protecting a substrate is disclosed. In an embodiment, the protection sheet comprises an adhesive coated nonwoven material. In an embodiment a surface of the protection sheet captures and retains paint overspray, dust, dirt and other contaminants so as to provide a cleaner paint job. In an embodiment the protection sheet may be laminated to a second nonwoven or woven material to allow clean removal after extended use. The protection sheet may be used to protect horizontal or vertical substrates, and is particularly suited to protect the surfaces of a paint booth used in automotive spray-painting operations. | 04-19-2012 |
20120171913 | HIGH LOFT SPUNBONDED WEB - Herein are disclosed high loft spunbonded webs that are substantially free of crimped fibers and gap-formed fibers. The webs exhibit a solidity of from less than 8.0% to about 4.0% and a ratio of Effective Fiber Diameter to Actual Fiber Diameter of at least 1.40. Also disclosed are methods of making such webs. | 07-05-2012 |