Plastic transparency and method for making it
US4622377A · kind A · utility
1Cited by
14References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 21, 1986 |
| Grant date | Nov 11, 1986 |
| Priority date | — |
| Expiry date | Jan 21, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F220/14
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A plastic transparency, and method for making it, that is the polymerization product of at least 97.5 mole percent of a monofunctional, vinyl monomer, of which at least 70 percent and preferably 100 percent is methyl methacrylate, and up to 2.5 mole percent neopentylene glycol dimethacrylate. The transparency exhibits significantly reduced optical hazing in an acidic environment, making it particularly suitable for use as an aircraft transparency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.