Compositions – Compositions containing a single chemical reactant or plural... – Organic reactant
Reexamination Certificate
2008-07-01
2008-07-01
Cooney, John (Department: 1796)
Compositions
Compositions containing a single chemical reactant or plural...
Organic reactant
C252S182270, C428S423100, C521S170000, C521S172000, C521S173000, C521S174000, C528S049000, C528S076000, C528S085000, C568S629000, C568S630000, C568S648000, C568S780000
Reexamination Certificate
active
07393465
ABSTRACT:
A process for preparing hydrophobic polyols that includes reacting A) a mixture having an OH content of from 180 to 300 mg KOH/g, a viscosity at 23° C. of from 5000 to 20 000 mPas and an OH functionality of from 2.8 to 4.5 including from 5 to 20 wt. % of 3-pentadecadienylphenol, from 5 to 10 wt. % of 3-pentadecadienyl-recorcinol and from 1 to 5 wt. % of 2-methyl 3-pentadecadienylrecorcinol; with B) alkylene oxides (AO) with addition of the AO monomers onto the AO-reactive groups of component A); the ratio of the amounts of A) to B) being from 1:9 to 9:1; where the hydrophobic polyols have an OH number of from 140 to 220 mg KOH/g and a viscosity at 23° C. of from 1000 to 4000 mPas. The hydrophobic polyols can be used in polyurethane systems, in coatings, adhesive bonds, sealants or moulding compounds, which can be used to coat substrates.
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Niesten Meike
Reese Jack
Ruttmann Gerhard
Simon Joachim
Bayer MaterialScience AG
Cheung Noland J.
Cooney John
Klemz Robert S.
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