Lactic acid residue containing polymer composition and product having improved stability, and method for preparation and use thereof
US6114495A · kind A · utility
58Cited by
29References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 1, 1998 |
| Grant date | Sep 5, 2000 |
| Priority date | — |
| Expiry date | Apr 1, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/90
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to a lactic acid residue containing polymer composition and product having improved stability and to methods for the preparation and use thereof. The lactic acid residue containing polymer preferably includes a polylactide polymer having a number average molecular weight of between about 25,000 and about 200,000, lactide, if present at all, present in a concentration of less than 0.5 wt % based on the weight of the composition, and deactivating agents. Articles which can be manufactured from the lactic acid residue containing polymer composition include fibers, coated paper, films, moldings, and foam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.