Films containing poly(hydroxy acid)s
US6027677A · kind A · utility
12Cited by
7References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 9, 1995 |
| Grant date | Feb 22, 2000 |
| Priority date | — |
| Expiry date | May 9, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/1942
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Compatible polymer compositions and optically clear, degradable films containing from 55 to 90 wt % of a poly(hydroxy acid) polymer composition and from 10 to 45 wt % of one or more compatible thermoplastic polymers are disclosed. The films are prepared by melt processing the materials to obtain uniform composition, and forming the composition into a film of thickness from 0.01 to 2 mm. The films can be used in packaging and conventional applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.