Claims
- 1. A reaction product of dialkyltin oxide and a polyhydric phenol selected from the group consisting of ##STR8## wherein n is 1 or 2, x is 2 or 3, y and y.sup.1 are individually 0, 1 or 2 with the sum of y and y.sup.1 being at least 2 and Z is ##STR9##
- 2. A reaction product as claimed in claim 1, wherein the polyhydric phenol is a compound of the formula III ##STR10## in which x is 2 or 3.
- 3. A reaction product as claimed in claim 1, wherein the polyhydric phenol is a compound of the formula IV ##STR11## in which n is 1 or 2.
- 4. A reaction product as claimed in claim 1, wherein the polyhydric phenol is a compound of the formula V ##STR12## in which y and y' are in each case 0, 1 or 2, the sum of y and y' being at least 2 and
- Z is a group of the formula C.dbd.O.
- 5. A process for the preparation of a reaction product as claimed in claim 1, wherein the dialkyltin oxide and polyhydric phenol are reacted at 80.degree. to 200.degree. C. in an organic solvent which is immiscible or only partly miscible with water, with removal of the water of reaction in circulation.
- 6. A curable mixture essentially comprising a binder, curing agent and catalyst, wherein the catalyst is a reaction product as claimed in claim 4.
Priority Claims (1)
Number |
Date |
Country |
Kind |
42 15 479.0 |
May 1992 |
DEX |
|
PRIOR APPLICATION
This application is a division of U.S. patent application Ser. No. 058,934 filed May 7, 1993 now U.S. Pat. No. 5,374,754.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
3099668 |
Zweigle et al. |
Jul 1963 |
|
3221036 |
Weissenberger |
Nov 1965 |
|
5374754 |
Hoenel et al. |
Dec 1994 |
|
Divisions (1)
|
Number |
Date |
Country |
Parent |
58934 |
May 1993 |
|