Liquid polyisocyanate mixtures, a process for their...

Details Liquid polyisocyanate mixtures, a process for their... Liquid polyisocyanate mixtures, a process for their...

C - Chemistry, Metallurgy

08

G

400/111, 403/44

C08G 18/72 (2006.01) C08G 18/10 (2006.01) C08G 18/12 (2006.01) C08G 18/28 (2006.01) C08G 18/76 (2006.01) C08G 18/80 (2006.01)

Patent

CA 2023641

This invention relates to novel urethane-modified polyisocyanate mixtures of the diphenylmethane series prepared by a process comprising reacting polyisocyanates or polyisocyanate mixtures of the diphenylmethane series with certain monohydric and/or polyhydric alcohols and, optionally, subsequently mixing the initially modified products with polyisocyanates or polyisocyanate mixtures of the diphenylmethane series that have not been modified with urethane groups. This invention further relates to the use of the polyisocyanate mixtures in the preparation of polyurethane foams.

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