Pentamethylenediisocyanate, method for producing pentamethylenediisocyanate, polyisocyanate composition, polyurethane resin, and polyurea resin
AssigneeMitsui Chemicals, Inc.
InventorsToshihiko Nakagawa, Hiroshi Takeuchi, Kuniaki Sato, Satoshi Yamasaki
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Abstract
A Pentamethylene diisocyanate is obtained by phosgenating pentamethylenediamine or its salt obtained by a biochemical method, and contains 5 to 400 ppm of a compound represented by the general formula (1) below and a compound represented by the general formula (2) below in total:
Claims4
A pentamethylene diisocyanate obtained by phosgenating pentamethylenediamine or its salt obtained by a biochemical method, wherein the pentamethylene diisocyanate contains 5 to 200 ppm of a compound represented by the general formula (1) below and a compound represented by the general formula (2) below in total:
Dependencies are inferred from the claim text.