Diisocyanates and processes for their production and use

Details Diisocyanates and processes for their production and use Diisocyanates and processes for their production and use

1995-05-03

1996-09-03

Seidleck, James J.

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

528 59, 528 73, 528 76, 528 80, 528 85, 540202, 544193, 544222, 560129, 560130, 560145, 560179, 560330, 560335, 560338, 560346, 560347, 560355, C08G 1877, C07D25134, C07C 6934, C07C26502

Patent

active

055525075

ABSTRACT:
Diisocyanates containing carboxylic acid ester groups corresponding to the formula: ##STR1## in which R and R.sup.1 represent specified groups are produced by phosgenation of the corresponding diamines, optionally present in the form of an ammonium salt. These diisocyanates are useful as starting materials in the production of plastics containing urethane and/or urea groups and as starting materials for the production of intermediate products used for the production of such plastics.

REFERENCES:
patent: 3367920 (1968-02-01), Wasserman et al.
patent: 3567763 (1971-03-01), Emmons et al.
patent: 3912770 (1975-10-01), Botta et al.
patent: 4224238 (1980-09-01), Nagato et al.
patent: 4574059 (1986-03-01), Kervennal et al.
patent: 4879408 (1989-11-01), Kn ofel et al.

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