Low modulus thermoplastic elastomeric polyester-polysiloxane block copolymers
US4659786A · kind A · utility
21Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 1985 |
| Grant date | Apr 21, 1987 |
| Priority date | — |
| Expiry date | Jun 3, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/445
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Polyester-polysiloxane block copolymers for dental uses are disclosed as low modulus thermoplastic elastomers. The copolymers comprise polycaprolactone residues and poly(dimethylsiloxane) .alpha.,.omega.-diol residues which are linked by ether bonds. The compounds exhibit the property of plasticity by heating and the property of original rubber elasticity by cooling again to room temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.