Glycol-based cleaning solvent
US6204237A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1999 |
| Grant date | Mar 20, 2001 |
| Priority date | — |
| Expiry date | Sep 17, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D7/28
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A nonflammable glycol-based cleaning solvent which is not classified as, a hazardous material is provided. Isopropyl bromide (IPB) and/or n-propyl bromide (NPB), both of which being nonflammable solvents, is mixed to a main component comprised of propylene glycol-based solvents. The thus-obtained glycol-based cleaning solvent is given a nonflammable, flameproof characteristic. The first ingredient, comprised of one type of propylene glycol-based solvent or a plurality of types thereof, has a flash point of 28.degree. C. or above. The amount of IPB and/or NPB being added to 100 pts.wt. of the first ingredient is in the range of 10-70 pts.wt., considering the negative influence of IPB and/or NPB on plastics and rubber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.