High molecular weight polymethylene adipates
US5250656A · kind A · utility
0Cited by
5References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 4, 1992 |
| Grant date | Oct 5, 1993 |
| Priority date | — |
| Expiry date | Feb 4, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2200/0655
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
High molecular weight polymethylene adipates useful as melt adhesives and sealants, including adipates with molecular weights in excess of 30,000 are disclosed. Also provided is a process for preparing high molecular weight polymethylene adipates by polymerization of an acid and one or more diols with a minute molar excess of diol with respect to acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.