Title:
【発明の名称】ヒドロキシ基を含むオリゴエステルの製造方法およびそれの使用法
Document Type and Number:
Japanese Patent JP2553354
Kind Code:
B2
Abstract:
Oligoesters having hydroxyl groups and an OH number of from 200 to 600 mg KOH/g are made by reacting a cyclic dicarboxylic acid anhydride in which no halogen is present with a polyfunctional alcohol or dialkanolamine in a molar ratio of from 1:0.5 to 1:1.5 at a temperature of from 50 DEG to 150 DEG C. to form the corresponding dicarboxylic acid semiester and/or semiamide. This semiester and/or semiamide is then alkoxylated with ethylene oxide and/or propylene oxide in the presence of a catalyst at 80 DEG to 150 DEG C. The equivalent ratio of acid groups to alkylene oxide groups is from 1:0.8 to 1:1.7. The catalysts are reaction products of alkoxides with at least 3 C-atoms with ammonia, piperidine, piperazine and/or C2-C6 aliphatic, polyamines, preferably diamines in which all of the NH-functional groups have been alkoxylated. The resultant oligoester may then be reacted with a polyisocyanate optionally in the presence of known additives, such as blowing agents and catalysts.
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Inventors:
MANFURETO DEIITORITSUHI
MANFURETO KATSUPUSU
KURAUSU KEENITSUHI
RORANTO NASHUTO
MANFURETO KATSUPUSU
KURAUSU KEENITSUHI
RORANTO NASHUTO
Application Number:
JP15360587A
Publication Date:
November 13, 1996
Filing Date:
June 22, 1987
Export Citation:
Assignee:
BAYER AG
International Classes:
C08G18/42; C07C67/08; C07C69/42; C07C69/60; C07C69/657; C07C69/80; C08G18/50; C08G63/66; C08G65/32; C08G69/40; (IPC1-7): C08G65/32; C08G63/66; C08G69/40
Domestic Patent References:
| JP60237029A | ||||
| JP4426093B1 | ||||
| JP4719190B1 |
Attorney, Agent or Firm:
Kawahara Kazuho