Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1982-10-29
1988-02-02
Shippen, Michael L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
556420, 558265, 560 26, 560115, 560158, 560159, C07C12506
Patent
active
047230320
ABSTRACT:
Modified polyamines containing carbamates, urethane and/or urea and/or thiourethane groups and having a primary amine content of from 0.1 to 20.2 wt % are produced by (a) mixing an organic isocyanate with a base in the presence of at least one hydrogen-active compound and water and (b) converting the carbamate, urethane and/or urea and/or thiourethane groups to amino groups. The isocyanate starting material has an isocyanate content of from 0.5 to 40 wt. %. The hydrogen-active compound contains a hydroxy and/or amino and/or thiol group. Water is used in a quantity such that one mol of water is present for each isocyanate equivalent. Conversion to form the amino groups is accomplished by treatment with a proton donor and/or thermal decomposition and/or solvent extraction. The polyamines thus-produced are particularly useful in the production of polyurethanes.
REFERENCES:
patent: 2888439 (1959-05-01), Simons
patent: 3044989 (1962-07-01), Shivers
patent: 3184502 (1965-05-01), Mueller et al.
patent: 3385829 (1968-05-01), Heydkamp et al.
patent: 3625871 (1971-12-01), Traubel et al.
patent: 3808250 (1974-04-01), Blahak et al.
patent: 3836488 (1974-09-01), Pruitt et al.
patent: 3865791 (1975-02-01), Brinkmann
patent: 3963710 (1976-06-01), Aufdermarsh
patent: 3997592 (1976-12-01), Aufdermarsh
patent: 4129741 (1978-12-01), Schmidt et al.
patent: 4153801 (1979-05-01), Schmidt et al.
patent: 4163831 (1979-08-01), Gessell
patent: 4169206 (1979-09-01), Mazanek et al.
patent: 4180644 (1979-12-01), Marquis et al.
patent: 4224417 (1980-09-01), Hajek et al.
patent: 4234714 (1980-11-01), Earing et al.
patent: 4386218 (1983-05-01), Rasshofer et al.
Dieterich Dieter
Rasshofer Werner
Bayer Aktiengesellschaft
Gil Joseph C.
Harsh Gene
Shippen Michael L.
Whalen Lyndanne M.
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