C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
31/1
C09K 3/00 (2006.01) C08G 18/54 (2006.01) C08G 18/72 (2006.01)
Patent
CA 1045803
ABSTRACT OF THE DISCLOSURE This invention relates to a process for producing a liquid product of a toluene diisocyanate tar occurring as a by-product in the preparation of toluene diisocyanate. The process comprises dissolving or dispersing the tar in a specific aromatic solvent. The liquid product produced by the process may be used as a curing agent in the production of an inexpensive urethane compositions.
200149
Kataoka Yushin
Nemoto Makoto
Okamoto Masahiro
Nittetsu Chemical Industrial Co.
Sumitomo Chemical Company
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