Polysulfide sealants with reduced moisture vapor transmission
US5430192A · kind A · utility
7Cited by
6References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1993 |
| Grant date | Jul 4, 1995 |
| Priority date | — |
| Expiry date | Aug 26, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G75/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The moisture vapor transmission rates of sealants containing liquid polysulfides made from mixtures of a hexylene dihalide and a chloroethyl formal wherein the molar ratio is from about 1.5:1 to about 2.3:1 are extremely low. A preferred ratio is 0.64:0.36. The new liquid polysulfide is useful in conventional sealant formulations for insulated glass window units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.