Claims
- 1. A liquid coating composition comprising from about 50 to about 80 wt. % of an organotin di- or tricarboxylate and from about 20 to about 50% by weight of an organic fluoroacid.
- 2. The composition of claim 1 comprising from about 50 to about 60 wt. % of the organotin di- or tricarboxylate, and from about 40 to about 50% by weight of the fluoroacid.
- 3. The composition of claim 1 wherein the organotin di- or tricarboxylate has the formula R'.sub.x Sn(O.sub.2 CR").sub.4-x, where
- R' is a C.sub.1 to C.sub.4 straight- or branched-chain alkyl, or R'"CH.sub.2 CH.sub.2, where
- R'" is R.sup.IV O.sub.2 C or CH.sub.3 CO, and where
- R.sup.IV is C.sub.1 to C.sub.4 alkyl,
- R" is C.sub.1 to C.sub.4 straight- or branched-chain alkyl, and x is 1 or 2, and
- the fluoroacid is selected from the group consisting of trifluoroacetic acid, difluoroacetic acid, perfluoropropionic acid, chlorodifluoroacetic acid, trifluoroacetic anhydride and perfluoropropionic anhydride.
- 4. The composition of claim 1 wherein the organotin di- or tricarboxylate is selected from the group consisting of dibutyltin diacetate, butyltin triacetate, methyltin triacetate, dimethyltin diacetate, dibutyltin dipropionate, dimethyltin dipropionate, methyltin tripropionate, diisobutyltin diacetate, bis(carbomethoxyethyl)tin diacetate, and bis(3-oxobutyl)tin diacetate.
- 5. The composition of claim 1 wherein the organotin di- or tricarboxylate is dibutyltin diacetate, and the organic fluoroacid is trifluoroacetic acid.
- 6. The composition of claim 1 comprising about 60 wt. % dibutyltin diacetate and about 40 wt. % trifluoroacetic acid.
- 7. The composition of claim 1, being substantially devoid of solvent.
- 8. The method of coating a transparent substrate which comprises applying to the substrate a liquid coating composition consisting of a fluoroacid and an organotin di- or tricarboxylate having the general formula R'.sub.x Sn(O.sub.2 CR").sub.4-x, where
- R' is a C.sub.1 to C.sub.4 straight- or branched-chain alkyl, or R'"CH.sub.2 CH.sub.2, where
- R'" is R.sup.IV O.sub.2 C or CH.sub.3 CO, and where
- R.sup.IV is C.sub.1 to C.sub.4 alkyl,
- R" is C.sub.1 to C.sub.4 straight- or branched-chain alkyl, and x is 1 or 2.
- 9. The method of claim 8 wherein the organotin di- or tricarboxylate is selected from the group consisting of dibutyltin diacetate, butyltin triacetate, methyltin triacetate, dimethyltin diacetate, dibutyltin dipropionate, dimethyltin dipropionate, methyltin tripropionate, diisobutyltin diacetate, bis(carbomethoxyethyl)tin diacetate, and bis(3-oxobutyl)tin diacetate.
- 10. The composition of claim 8 wherein the organotin di- or tricarboxylate is dibutyltin diacetate, and the organic fluoroacid is trifluoroacetic acid.
- 11. The composition of claim 8 comprising about 60 wt. % dibutyltin diacetate and about 40 wt. % trifluoroacetic acid.
- 12. The composition of claim 8, being substantially devoid of solvent.
CROSS-REFERENCE TO RELATED APPLICATION
This application is a continuation-in-part of our copending application Ser. No. 232,962, filed Aug. 16, 1988, and now abandoned.
US Referenced Citations (5)
Continuation in Parts (1)
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Number |
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232962 |
Aug 1988 |
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