US 4798876
HYDROPHILIC POLYURETHANE COMPOSITION
Assignee
TYNDALE PLAINS - HUNTER LTD., A CORP OF NEW JERSEY
Filed
Nov 12, 1985
Granted
Jan 17, 1989
Location
PRINCETON NJ US
Abstract
Water absorptive polyurethane composition, having high mechanical strength, is formed of A. about 25% to about 75% of a hydrophilic polyether polyurethane which is the reaction product of diethylene glycol and a polyoxyethylene glycol having a molecular weight of about 1000 to about 8000 with a polyisocyanate and B. about 75% to about 25% of a hydrophobic polyester polyurethane which is the reaction product of a polyfunctional polyester derived from the condensation of a polyol with a polybasic acid with a polyisocyanate.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
May 7, 1986
Rescinded
Oct 27, 1986
Duration
5 months
Inventor
- 1FRANCIS E. GOULD
Record Details
- Patent number
- US 4798876
- Application
- 06797407
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records
Browse by Assignee
TYNDALE PLAINS - HUNTER LTD., A CORP OF NEW JERSEYBack to patent indexSource: USPTO 35 USC §181 secrecy order records