The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 18, 2001
Filed:
Oct. 29, 1999
Daojie Dong, Westerville, OH (US);
Owens Corning Fiberglas Technology, Inc., Summit, IL (US);
Abstract
The invention relates to glass mats and their method of manufacture. In particular, the invention relates to a wet-laid method of making a glass mat and the mats formed by this method. The method includes combining a dispersant, water, glass fiber bundles, and a charged viscosity modifier to form a slurry, adding an oppositely charged viscosity modifier to the slurry, and removing the water from the slurry to form a wet glass mat. The present invention enables improved control of fiber dispersion and subsequent bundling of the fibers to form, for example, bundled glass mats with high porosity and a uniform weight. Mats produced by the present invention may be formed into a variety of products, such as in glass fiber paper, roofing shingles, and composite articles.