Abstract: A needled mat adapted to reinforce a thermoplastic matrix material to form a composite, the mat including: (a) a plurality of discontinuous glass monofilaments present in an amount ranging from at least about 30 weight percent to about 99 weight percent of the mat on a total solids basis and having a filament coating composition thereon which is compatible with a thermoplastic matrix material; and (b) a plurality of discontinuous glass fiber strands and having a strand coating composition thereon which is compatible with the thermoplastic matrix material, wherein the glass monofilaments and glass fiber strands are essentially uniformly distributed throughout the mat.
Type:
Grant
Filed:
March 21, 1997
Date of Patent:
March 16, 1999
Assignee:
PPG Industries, Inc.
Inventors:
Edward A. Martine, Jian Meng, Thomas V. Thimons, Thomas P. Unites
Abstract: A vehicle panel material comprises a mixture of recycled, reground thermo-formable material and reprocessed headliner material which includes fibrous bats with polyester fibers, glass fibers and a thermo-setting resin. The method of manufacturing such material includes the steps of shredding thermo-formable material into strips; shredding headliner material comprising thermo-formable fibrous bats, glass fibers and thermo-setting resin; mixing and carding the thermo-formable material and headliner material into a mat; heating the mat to at least partially melt the thermo-formable material; and shaping the mat into a vehicle panel.
Abstract: A needled mat adapted to reinforce a thermoplastic matrix material includes (a) a primary layer having a plurality of thermoplastic fibers in an amount greater than about 20 weight percent of the primary layer on a total solids basis, the primary layer being less than about 20 weight percent of the mat on a total solids basis; and (b) a secondary layer having a plurality of discontinuous glass fiber strands and having thereon a strand coating composition which is compatible with the thermoplastic matrix material, the secondary layer being essentially free of individual glass monofilaments.
Type:
Grant
Filed:
March 21, 1997
Date of Patent:
February 16, 1999
Assignee:
PPG Industries, Inc.
Inventors:
Jian Meng, Thomas V. Thimons, Thomas P. Unites
Abstract: A method for producing asphalt fibers includes supplying molten asphalt to a rotating asphalt spinner, centrifuging asphalt fibers from the asphalt spinner, and collecting the asphalt fibers. The molten asphalt is supplied to the asphalt spinner at a temperature within the range of from about 270.degree. to about 500.degree. F. Also disclosed is a method for integrating asphalt with reinforcement fibers including the steps of establishing a downwardly moving veil of reinforcement fibers, such as glass fibers, and centrifuging asphalt fibers from a rotating asphalt spinner positioned within the veil of reinforcement fibers to integrate the asphalt with the reinforcement fibers. A method for making an asphalt roofing shingle includes the steps of assembling together a mat of asphalt fibers with a mat of reinforcement fibers, coating the assembled mats to form an asphalt coated sheet, applying granules to the asphalt coated sheet, and cutting the asphalt coated sheet into roofing shingles.
Type:
Grant
Filed:
December 29, 1997
Date of Patent:
February 9, 1999
Inventors:
Kevin P. Gallagher, Patrick L. Ault, James E. Loftus, Michael T. Pellegrin, Donn R. Vermilion, Frederick H. Ponn
Abstract: Methods for making nonwoven fibrous mats that produce superior tear strengths in roofing products, and the mats produced by the method, are disclosed. The mats comprise glass fiber bonded together with a dried and cured mixture of aqueous urea formaldehyde resin and a self crosslinking copolymer of vinyl acrylic or polyvinyl acetate.
Type:
Grant
Filed:
September 14, 1995
Date of Patent:
December 22, 1998
Assignee:
Johns Manville International, Inc.
Inventors:
Paul Russell Swartz, George Nicholas Ello
Abstract: A fiber glass mat especially useful for bonding to wood contains glass fibers and a "B" staged resin, and the method of making the mat, are disclosed. A substantial portion of the resin binder can be a furfural alcohol, phenol formaldehyde, melamine formaldehyde, or any other resin that can be "B" staged.
Abstract: A loose-fill insulation product having irregularly shaped glass fibers is provided. The loose-fill insulation product shows improved recovery, lower thermal conductivity and requires lower product densities than prior art loose-fill insulation at equivalent fiber diameters.
Type:
Grant
Filed:
February 20, 1996
Date of Patent:
July 28, 1998
Assignee:
Owens Corning Fiberglas Technology, Inc.
Inventors:
Michael E. Evans, John R. Mumaw, Roberta L. Alkire, W. Scott Miller, Ronald A. Houpt, Russell M. Potter, Tod D. Green, David P. Aschenbeck, Clarke Berdan, II
Abstract: A panel is formed from an expanded mat of fiberglass strands, a thermosetting resin binder is incorporated with these strands. When the panel is formed, it has a relief between the edges of the panel and the recessed portion of the panel. The panel is retained in its molded position by the setting of the thermosetting resin binder.
Type:
Grant
Filed:
November 17, 1995
Date of Patent:
December 9, 1997
Assignee:
Nicofibers, Inc.
Inventors:
Rodney R. Wilkins, Carl J. Weaver, Donald E. Dickson, Jack E. Compston
Abstract: A process for producing fiberglass reinforced molded articles of superior surface quality involves preparation of a mat of glass fiber comprised of a majority of fibers having a diameter of less than one micron and a minority of fibers having a diameter greater than one micron. A sizing is applied to the fibers. The sizing includes a coupling agent preselected to be compatible with the moldable material, e.g. nylon. The glass fiber mat is comminuted into pieces shaped and dimensioned for combination with the moldable material to form a composite having a range of to 50% of glass fiber by weight. The composite is then molded by a conventional process to yield a fiberglass reinforced article with superior surface quality.