Roofing mat using urea-formaldehyde binder of particular viscosity and surface tension
US7964060B2 · kind B2 · utility
3Cited by
2References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 30, 2009 |
| Grant date | Jun 21, 2011 |
| Priority date | — |
| Expiry date | Dec 30, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/60
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Provided is thermosetting urea-formaldehyde (UF) resin binder formulation, preferably prepared with modified styrene-maleic anhydride. The formulation has a viscosity in the range of from 3 to 10 cP and a surface tension of from 35 to 50 mN/m, and is prepared using a UF resin composition exhibiting a viscosity of from 175 to 250 cP.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.