Polyurethane orthopedic cast material and the method of its preparation
US5455294A · kind A · utility
10Cited by
19References
9Claims
0Family size
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Inventor
Key dates
| Filing date | Aug 13, 1993 |
| Grant date | Oct 3, 1995 |
| Priority date | — |
| Expiry date | Aug 13, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/163
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention concerns a new, unconventional, mold-binding, water solidified polyurethane cast to be used in orthopedic departments for the correction of deformities, fixation of fractured limbs and joints, and mollification of affected parts, as well as the method of its preparation. The chief constituent, a polyurethane prepolymer, contains a stabilizer that can prolong appreciably the storage period of the cast material, maleic anhydride, and a mixed catalyst for control of hardening time, bis(2-morpholinoethoxy)ethane and anhydrous potassium carbonate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.