Paint remover composition and method of making
A composition for paint removal and methods of making and of using the composition are provided. The composition comprises tetrahydrofuran (THF), an amine with a molar volume of <100 cm 3 /mol, and a solvent.
1. A paint remover composition comprising:
tetrahydrofuran (THF) in an amount of 50% by wt. to 90% by wt based on the total weight of the composition;
an amine with a molar volume of <100 cm 3 /mol,
a solvent that renders the composition miscible, wherein the solvent comprises at least one of methanol, ethanol, ethyleneglycol monobutyl ether, or a combination thereof, and
water in an amount up to 20% by wt. based on the weight of the composition,
wherein the composition is miscible.
2. The composition according to claim 1 , wherein the amine is present in an amount of 1 weight % to 10 weight %, wherein the weight percentages are based on the weight of the composition.
3. The composition according to claim 1 , wherein the amine is selected from the group consisting of ammonia, hydroxylamine, dimethylamine, ethanolamine, pyrrolidine, and a combination thereof.
4. The composition according to claim 1 , wherein the molar volume of the amine is <30 cm 3 /mol.
5. The composition according to claim 1 , wherein the amine is selected from the group consisting of ammonia, hydroxylamine, and a combination thereof.
6. The composition according to claim 1 , further comprising a solvent evaporation retarder.
7. The composition according to claim 1 , wherein the solvent evaporation retarder is a paraffin wax.
8. The composition according to claim 7 , wherein paraffin wax is present in an amount from 0.25 weight % to 0.8 weight % based on the weight of the composition.
9. The composition according to claim 1 , further comprising a cellulosic thickener.
10. The composition according to claim 1 , wherein the cellulosic thickener is selected from the group consisting of hydroxypropyl methyl cellulose, hydroxypropyl cellulose, and a combination thereof.
11. The composition according to claim 1 , further comprising an amine containing corrosion inhibitor.
12. The composition according to claim 1 , wherein water is present in an amount up to 14% by weight based on the total weight of the composition.
13. The composition according to claim 1 , wherein water is present in an amount up to 10.5% by weight based on the total weight of the composition.
14. The composition according to claim 1 , wherein water is present in an amount up to 7% by weight based on the total weight of the composition.
15. The composition according to claim 3 , wherein water is present in an amount up to 14% by weight based on the total weight of the composition.
16. The composition according to claim 3 , wherein water is present in an amount up to 10.5% by weight based on the total weight of the composition.
17. The composition according to claim 3 , wherein water is present in an amount up to 7% by weight based on the total weight of the composition.
18. The composition according to claim 1 , wherein water is present in an amount up to 6% by weight based on the total weight of the composition.
19. The composition according to claim 1 , wherein water is present in an amount up to 4.5% by weight based on the total weight of the composition.
20. The composition according to claim 1 , wherein water is present in an amount up to 3% by weight based on the total weight of the composition.