Silylated polyether sealant
US6265517A · kind A · utility
29Cited by
10References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 7, 1999 |
| Grant date | Jul 24, 2001 |
| Priority date | — |
| Expiry date | Sep 7, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2190/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a silyated polyether urethane prepolymers prepared from endcap precursors containing dialkyl maleates having alkyl groups containing greater than four carbon atoms which is viscosity stable during compounding, exhibits a relatively fast cure rate, and which has improved sag resistance, extrusion rates, elongation, modulus, and tensile strength. Sealants containing such prepolymers and a process for preparing such sealants is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.