Process for the production of polymers containing isocyanurate a

Details Process for the production of polymers containing isocyanurate a Process for the production of polymers containing isocyanurate a

1984-07-27

1986-02-04

Cockeram, Herbert S.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

556 56, 521902, 528 53, 528 55, 528 73, C08G 1814, C08G 1822, C07F 728

Patent

active

045687030

ABSTRACT:
Titanium compounds of the formula Ti(OX).sub.4 or Ti((O--R.sub.2).sub.2 NR.sub.3).sub.2, where (a) X is selected from the group comprising --R.sub.1, --R.sub.2 --OH, --(R.sub.2 --O).sub.n --OH, --R.sub.2 N(R.sub.3).sub.2, and --R.sub.2 --N(R.sub.2)(R.sub.3)OH; (b) R.sub.1 is a C.sub.5 -C.sub.8 alkyl group, R.sub.2 is a C.sub.2 -C.sub.4 alkylene group and R.sub.3 is either --CH.sub.3 or --CH.sub.2 CH.sub.3 ; and (c) n=1-20, are catalysts for the trimerization of isocyanates to isocyanurates and for the formation of 2-oxazolidones from epoxides and isocyanates.
The catalysts may also be used to produce poly(isocyanurates), poly(2-oxazolidones), poly(2-oxazolidone/isocyanurates) and polyurethanes containing isocyanurate and or 2-oxazolidone linkages from the appropriate polyfunctional feedstocks.

REFERENCES:
patent: 3047515 (1962-07-01), Piirma
patent: 3320193 (1967-05-01), Beck et al.
patent: 3721689 (1973-03-01), Bardinet
patent: 3772355 (1973-11-01), Merz
patent: 4022721 (1977-05-01), Ashida
patent: 4189541 (1980-02-01), Ohashi et al.
patent: 4271273 (1981-06-01), Biranowski et al.
patent: 4365670 (1982-12-01), McLaughlin

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