JAMES BRADLEY HAAS
Dentist in Pittsburgh, PA
License number
Pennsylvania DS028242L
Category
Dentistry
Type
Dentist
Address
Address
Pittsburgh, PA 15217
Professional information
Toluene Diamine Initiated Polyether Polyols
US Patent:
4209609, Jun 24, 1980
Filed:
Sep 27, 1978
Appl. No.:
5/946259
Inventors:
James L. Haas - Pittsburgh PA
Assignee:
Mobay Chemical Corporation - Pittsburgh PA
International Classification:
C08L 7102
US Classification:
528421
Abstract:
The instant invention is directed to novel polyols and the use thereof in producing polyurethane foams. The polyols comprise the adduct obtained by first reacting toluene diamine with from three to five moles of ethylene oxide and thereafter with from 1 to 5. 1 moles (per mole of toluene diamine) of a vicinal alkylene oxide of from 3 to 9 carbon atoms, with the proviso that the total number of moles of ethylene oxide plus vicinal alkylene oxide does not exceed 8. 1 and is no less than 5. When polyurethane foams are produced using the novel polyols herein, foams of low friability and good dimensional stability result.
Toluene Diamine Initiated Polyether Polyols
US Patent:
4243759, Jan 6, 1981
Filed:
Dec 12, 1979
Appl. No.:
6/103835
Inventors:
James L. Haas - Pittsburgh PA
Assignee:
Mobay Chemical Corporation - Pittsburgh PA
International Classification:
C08L 7102, C08G 1814
US Classification:
521167
Abstract:
The instant invention is directed to novel polyols and the use thereof in producing polyurethane foams. The polyols comprise the adduct obtained by first reacting toluene diamine with from three to five moles of ethylene oxide and thereafter with from 1 to 5. 1 moles (per mole of toluene diamine) of a vicinal alkylene oxide of from 3 to 9 carbon atoms, with the proviso that the total number of moles of ethylene oxide plus vicinal alkylene oxide does not exceed 8. 1 and is no less than 5. When polyurethane foams are produced using the novel polyols herein, foams of low friability and good dimensional stability result.