High-functionality polyether polyols and preparation thereof

Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing

Reexamination Certificate

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Details

C568S609000, C568S630000, C568S632000, C568S633000, C568S640000, C568S644000

Reexamination Certificate

active

07122708

ABSTRACT:
The invention relates to high-functionality polyether polyols of the general formulawhere each R′1is an unsubstituted or substituted aliphatic or aromatic radical and each R′2is an unsubstituted or substituted aliphatic or aromatic radical, H, OH, polyalkyl ether chain or halogen, each X is a polyalkyl ether chain or H, where at least one X is a polyalkyl ether chain, and m is an integer from 0 to 20, where Xm is H when m is 0, and n is an integer from 4 to 12, to processes for preparing such high-functionality polyether polyols and also to the use thereof for preparing polyurethanes and nonionic surfactants.

REFERENCES:
patent: 5780403 (1998-07-01), Moreton
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Kurita et al, Macrocyclic amphiphiles, Journal of Materials Chemistry, 1998, vol. 8(2), pp. 397-403.
Hyatt, Octopus molecules in the cyclotriveratrylene series, Journal of Organic Chemistry, 1978, vol. 43(9), pp. 1808-1811.
Neda et al, A new synthesis of tetrakis (C-methyl) octakis (hydroxyethyl) calix[4]resorcinarene via an ethoxy-tethered trimethylsiloxy precursor, Zeitschrift fuer Naturforschung, 1998, vol. 53(8) pp. 841-848.
Fujimoto et al, Oct(galactose) derivative of calix[4]resorcarene as a versatile host in water, Gazzetta Chimica Italiana, 1997, vol. 127(11), pp. 749-752.
Shivanyuk et al, 3, 5, 10, 12, 17, 19, 24, 26-Octakis (beta-hydroxyethoxy)-1, 8, 15, 22-tetraaryl[14]metacyclophanes, Zhurnal Obshchei Khimii, 1994, vol. 64(5), pp. 837-839.

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