C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/10 (2006.01) C08G 18/40 (2006.01) C08G 18/76 (2006.01)
Patent
CA 2608888
Stable NCO prepolymers are produced from polyisocyanates having a melting point greater than 70°C, preferably, naphthalene diisocyanate, having advantageous physical properties. An important feature of the process of the present invention is the rapid cooling of the prepolymer. The process of the present invention may be carried out on a continuous or batch basis. The prepolymers of the present invention are particularly suitable for the production of cast polyurethane elastomers.
Barnes James Michael
Bauer Erika
Di Mews Horst
Gracik Charles S.
Lutz Heinrich
Bayer Materialscience Aktiengesellschaft
Bayer Materialscience Llc
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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