Acrylic compositions
US7250472B1 · kind B1 · utility
1Cited by
2References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 1999 |
| Grant date | Jul 31, 2007 |
| Priority date | — |
| Expiry date | Oct 25, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/22
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Acrylic compositions which can be processed into thermoformable acrylic sheet material with variegated non-homogeneous granite appearance are disclosed. The acrylic compositions comprise a matrix of polymethyl methacrylate having dispersed within it particles of a thermoplastic such as polymethyl methacrylate and one or more comonomers wherein the thermoplastic is in the shape of thin wafers 0.05 to 9.53 mm thick, 0.18 to 12.8 wide and 0.18 to 7.62 mm long.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.