A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
400/1324, 402/14
A61K 6/08 (2006.01) A61K 6/00 (2006.01) A61K 6/09 (2006.01) C08G 18/28 (2006.01)
Patent
CA 1143890
ABSTRACT OF THE DISCLOSURE The present invention provides a two-component composition for use to form a solvent-free fixing material suitable for use in dentistry, which fixing material is liquid at room temperature and has a viscosity in the range of from 5,000 to 100,000 cP, said compositions having: a first component comprising at least one organic polyisocyanate with aliphatically and/or cycloaliphatically bonded isocyanate groups; and a second component comprising a) at least one polyhydroxy compound having a molecular weight in the range of from 200 to 20,000 being substantially free of ether groups, and having at least 2 aliphatically bonded OH groups and b) from 1 to 60% by weight, relative to the total mixture, of monohydric and/or polyhydric alcohols with a molecular weight below 200 and/or from 0 to 40% by weight, relative to the total mixture, of oligomeric polyester containing at least 2 OH groups or ester-diols, with an average molecular weight of from 100 to 500, the first and second components of the mixture being present in amounts corresponding to NCO/OH ratio of from 0.8:1 to 1.2:1.
295804
Schulz Hans H.
Uerdingen Walter
Wagner Kuno
Aktiengesellschaft Bayer
Fetherstonhaugh & Co.
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