Bicyclooctane derivatives as plasticizers
US6395810B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2000 |
| Grant date | May 28, 2002 |
| Priority date | — |
| Expiry date | Oct 26, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/1535
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The use of isosorbide esters, isosorbide polyesters, isosorbide ethers, isosorbide carbonates, isosorbide thioethers, isosorbide thioesters, isosorbide amides, isosorbide (thio)urethanes, isosorbide urea, isosorbide phosphates and isosorbide phosphonates as a plasticizer is described. Instead of isosorbide it is also possible for corresponding diols such as isomannide and similar compounds, in which the ring oxygen atoms of the isosorbide have been replaced by carbon or by other heteroatoms, to serve as a base. In particular, this relates to C3-C11 alkanoates of isosorbide, isomannide and the like. In particular, the compounds are used as a plasticizer inpoly(vinylchloride), optionally in conjunction with usual plasticizers such as dioctyl phthalates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.