Polyurethanes prepared with novel Mannich bases

Details Polyurethanes prepared with novel Mannich bases Polyurethanes prepared with novel Mannich bases

1976-02-17

1979-03-06

Cockeram, H.S.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

260551R, 260561R, 260 18TN, 428425, 521 51, 521111, 528 54, 560159, C08G 1814, C08G 1818

Patent

active

041432207

ABSTRACT:
Cellular and non-cellular polyurethane plastics and semi-hard polyurethane foams which are prepared by the use of novel Mannich bases of the general formula ##STR1## and which have improved strength and tear resistance are disclosed herein.

REFERENCES:
patent: 3001955 (1961-09-01), Taub
patent: 3004933 (1961-10-01), Muller et al.
patent: 3050475 (1962-08-01), Muller et al.
patent: 3073787 (1963-01-01), Krakler
patent: 3243389 (1966-03-01), Moller et al.
patent: 3321415 (1967-05-01), Hennig et al.
patent: 3368985 (1968-02-01), Wismer et al.
patent: 3494933 (1970-02-01), Farrissey, Jr. et al.
patent: 3595814 (1971-07-01), Lloyd et al.
Muller and Thomas, Angewandte Macromolekulare Chemie 34, No. 507 (1973) pp. 111-133.

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