SATURATED HYDROCARBON POLYMER HAVING PRIMARY HYDROXYL GROUP AT END AND PROCESS FOR PRODUCING THE SAME

WIPO Patent Application WO/2000/071588

A1

A compound containing a primary hydroxyl group and an unsaturated bond is caused to act on a halogen-terminated hydrocarbon polymer obtained by cationic polymerization to obtain a saturated hydrocarbon polymer having a hydroxyl group at each end. Compounds obtained by quantitatively incorporating hydroxyl groups at the ends of saturated hydrocarbon polymers obtained by cationic living polymerization are useful as materials for highly weatherable urethanes. In a conventional method known as a technique for obtaining such hydroxyl-terminated compounds, the polymer ends after completion of polymerization are converted to olefinic ends and then subjected to hydroboration. However, this method needs a multistage reaction and requires much labor. It has become possible to obtain a hydroxyl-terminated saturated hydrocarbon polymer directly, i.e., without via an intermediate therefor, by reacting a compound containing a primary hydroxyl group and an unsaturated bond with a halogen-terminated hydrocarbon polymer obtained by cationic polymerization.

CHIBA TAKESHI (JP)
TSUNEMI HIDENARI (JP)

PCT/JP1999/002741

November 30, 2000

May 25, 1999

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KANEKA CORP (JP)
CHIBA TAKESHI (JP)
TSUNEMI HIDENARI (JP)

C08F8/00; C08F8/26; C08F10/10; (IPC1-7): C08F8/26; C08F10/10

JPH01103605A

1989-04-20

B. IVAN, J.P. KENNEDY, V.S.C. CHANG, J. POLYM. SCI. POLYM. CHEM. ED., vol. 18, 1980, pages 3177 - 3191, XP002926329
See also references of EP 1225186A4

Yasutomi, Yasuo (Nishinakajima 5-chome Yodogawa-ku Osaka-shi Osaka, JP)

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