Crosslinkable bioplasticizers
US9382415B2 · kind B2 · utility
3Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2012 |
| Grant date | Jul 5, 2016 |
| Priority date | — |
| Expiry date | Feb 22, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L91/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A crosslinkable bioplasticizer is disclosed, a mixture of an epoxy-functional bio-derived plasticizer and an aromatic dianhydride. When heated, the mixture crosslinks, which can be accelerated by the addition of a Lewis Acid metal catalyst. The crosslinked bioplasticizer can be melt compounded into a thermoplastic resin or can be formed in situ in the thermoplastic resin. The crosslinking of the bioplasticizer can reduce blooming of the bioplasticizer to the surface of a plastic article made by extrusion, molding, calendering, or thermoforming techniques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.