Catalyst for low temperature cure of blocked isocyanates

Details Catalyst for low temperature cure of blocked isocyanates Catalyst for low temperature cure of blocked isocyanates

1993-07-28

1998-02-17

Marquis, Melvyn I.

Chemistry: electrical and wave energy

Processes and products

Electrophoresis or electro-osmosis processes and electrolyte...

204505, 428418, 523415, C09D 544

Patent

active

057188173

ABSTRACT:
The present invention comprises a curable composition comprising:
(i) a blocked reactive component comprising a blocked isocyanate or a blocked isothiocyanate;
(ii) a functional compound containing reactive hydrogen;
(iii) a triorganotin catalyst for promoting the reaction of the blocked reactive component with the functional compound.
The composition may also be admixed with water. The invention also relates to a method for curing a blocked isocyanate or blocked isothiocyanate at a temperature below about 150.degree. C. which comprises combining a triorganotin compound with the blocked reactive component and functional compound and heating at a temperature less than about 150.degree. C. to obtain a cured urethane or thiourethane.

REFERENCES:
patent: 3084177 (1963-04-01), Hostettler et al.
patent: 3240730 (1966-03-01), Hostettler et al.
patent: 3392128 (1968-07-01), Hostettler et al.
patent: 3392153 (1968-07-01), Hostettler et al.
patent: 3523103 (1970-08-01), Zemlin
patent: 4017438 (1977-04-01), Jerabek et al.
patent: 4031050 (1977-06-01), Jerabek
patent: 4032468 (1977-06-01), Treadwell et al.
patent: 4087412 (1978-05-01), Groves
patent: 4101486 (1978-07-01), Bosso et al.
patent: 4256621 (1981-03-01), Shimokai et al.
patent: 4286073 (1981-08-01), Coe
patent: 4865704 (1989-09-01), Saatweber et al.
patent: 4968823 (1990-11-01), Kiyama et al.
patent: 4981924 (1991-01-01), Nichols et al.
patent: 5063269 (1991-11-01), Hung
patent: 5089583 (1992-02-01), Nichols et al.
patent: 5115070 (1992-05-01), Harris et al.
patent: 5116914 (1992-05-01), Chung et al.
patent: 5356529 (1994-10-01), Eswarakrishnan et al.
Gum, Riese and Ulrich, eds, Reaction Polymers, 1992 pp. 58 and 59.
"Elu flu.beta. von Wasser . . . ," thiele pp. 1-3 (1989).
Sep. 28, 1995 Search Report from the European Patent Office in corresponding application EPA 94925683.8-2115 and Annex thereto.
"Einflu.beta. von Wasser auf die Insertionskatalyse bei der Urethanbildung", Lothar Thiele, Plaste und Kautschuk, 36. Jahrgang, Heft 1, pp. 1-3, Jan. 1989 (with attached English translation).

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