Binder composition and process
US6384116B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2000 |
| Grant date | May 7, 2002 |
| Priority date | — |
| Expiry date | Oct 15, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L61/24
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The specification discloses a binder composition comprising a urea formaldehyde resin modified with a water soluble non-ionic amine oxide and optionally further modified with an anionic acrylic latex and/or a water soluble polymer comprising 40-100% by weight, based on polymer weight, of a polymerized ethylenically unsaturated carboxylic acid monomer, the polymer having a weight average molecular weight from 100,000 to 2,000,000. Glass fiber mats bonded with the binder composition as well as roofing products, e.g., shingles, prepared from the glass mats bonded with the binder composition of this invention are also disclosed. The binder composition containing the amine oxide provides superior tear strength to glass fiber mats and with the use of the latex and/or water soluble polymer an improved tensile strength of the mats, as well as to asphalt roofing and other products made therefrom while maintaining the high tear strength. The specification also discloses processes for making: the binder; the bonded glass fiber mats; and the roofing products. The disclosure also provides a process for choosing a glass fiber mat or a specific formulation of the binder for use with each other wh…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.