Aprotic polar solvent/ether paint stripping compositions
US5308527A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1991 |
| Grant date | May 3, 1994 |
| Priority date | — |
| Expiry date | Dec 9, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D9/005
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Inexpensive paint stripper compositions, containing neither chlorinated, aromatic nor alkaline solvents and well adopted for removing glycerophthalic, alkyd-urethane, acrylic-polyurethane and epoxy paints from a variety of substrates, e.g., wood and metal substrates, comprise (a) from 1% to 20% by volume of an aprotic polar solvent selected from among dimethylsulfoxide, dimethylformamide, N-methylpyrrolidone, N-methylmorpholine, .gamma.-butyrolactone, acetonitrile and mixtures thereof; and (b) from 99% to 80% by volume of an ether selected from among methyltert-butylether, diethylether, tert-amylmethylether, tetrahydrofuran, dioxane and mixtures thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.