Offshore rig cleaner
US5336428A · kind A · utility
13Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 23, 1990 |
| Grant date | Aug 9, 1994 |
| Priority date | — |
| Expiry date | Jan 23, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/18
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An offshore platform rig cleaner consisting essentially of as major components d-limonene (5-7% actives by weight), a non-ionic surfactant selected from one member of the group consisting of ethoxylated octyl and nonyl phenol (15-21% actives), and an acrylic copolymer thickener (0.2 to 0.4%). The thickener may be preferably ethyl acrylate-methyacrylic acid. It has also been found that in the preparation of the cleaner the order of addition should be water then surfactant then d-limonene to avoid haze in the composition and to facilitate manufacture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.