Filled aminoplast moulding materials
US3957700A · kind A · utility
5Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 23, 1974 |
| Grant date | May 18, 1976 |
| Priority date | — |
| Expiry date | Jul 23, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L61/20
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Aminoplastic moulding compositions include a filler which comprises or consists of a cured particulate aminoplast material having a water absorption (absorbency) of less than 2 milliliters of water per gram; the aminoplast filler material preferably is a hydrophobic ureaformaldehyde foam which has been disintegrated prior to incorporation in the resin component of the composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.