Isocyanate-capped surface active compositions and methods of using them
US3960781A · kind A · utility
14Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 1975 |
| Grant date | Jun 1, 1976 |
| Priority date | — |
| Expiry date | May 12, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S516/07
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Diaryl urethanes made by capping poly (oxyalkylene) diols with monoisocyanates are characterized by a desirable hydrophobe/hydrophile balance typically evidenced by low cloud points, the ability to form micelles in aqueous media, the ability to reduce stable foam, and the ability to be taken up and retained by paper fibers, the low foaming or de-foaming capability of these compounds is useful in machine dishwashing detergents and additives, which hydrophobe/hydrophile balance is typically obtained through a combination of oxyethylene and oxypropylene units or blocks in the oxyalkylene chain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.