| 摘要 |
The present invention relates to hydrophobic, or water resistant or water repellant, polymers and especially to hydrophobic, or water resistant or water repellant, biodegradable polymers. Preferred polymers according to the present invention are polymers based on polylactic acid, polyvinyl, starch, polyacrylic acid, polyester and polymers based on combinations thereof. Further, the present invention relates to novel additives and techniques to provide polymers, and especially biodegradable polymers, with improved hydrophobic, water-repellent or water resistant properties. |
| 主权项 |
1. Hydrophobic polymer obtainable by a method comprising:
a) preparing a mixture of monomers and/or polymers thereby forming a polymeric mixture; and b) crosslinking said polymeric mixture in the presence of one or more lower oligosaccharides, preferably di- or trisaccharides, at a pH between 1.5 and 6 and a temperature of 60° C. to 160° C. thereby providing a crosslinked polymeric mixture;wherein:
1) in step (a) a compound selected from the group consisting of polyisobutylene (PIB), hydroxymethylfural (HMF) and 2,5-dimethylfuran (DMF) is added to the polymeric mixture; or 2) after step (b) a compound selected from the group consisting of polyisobutylene (PIB), hydroxymethylfural (HMF) and 2,5-dimethylfuran (DMF) is contacted with the crosslinked polymeric mixture. |
