High flow urea-formaldehyde powders for particleboard and fiberboard manufacture
US9975271B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | May 23, 2016 |
| Grant date | May 22, 2018 |
| Priority date | — |
| Expiry date | Aug 23, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2361/24
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Particulate binder compositions made with amine-aldehyde resins and methods for making same are provided. The method for making the particulate binder composition can include spray-drying an amine-aldehyde resin having a total aldehyde compound to total amine compound molar ratio of about 1.55:1 to about 1.65:1 to produce a particulate binder composition. The particulate binder composition can have a fusion diameter of about 35 mm to about 70 mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.