Surface coating agents
US6278018A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 14, 1999 |
| Grant date | Aug 21, 2001 |
| Priority date | — |
| Expiry date | Dec 14, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31504
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Compounds useful as surface coating agents, including compounds of the formula: ##STR1## wherein X.sub.1 comprises a first photoreactive species; X.sub.2 comprises a second photoreactive species; Y comprises a nonpolymeric core molecule comprising an aromatic group; and Z comprises at least one charged group. The Y core can include an aromatic group such as a benzene radical, the charged groups Z can be independently selected from the organic acids that include sulfonic acid, carboxylic acid, and phosphoric acid, and the photoreactive species of X.sub.1 and X.sub.2 can independently be aryl ketones, such as those selected from the group acetophenone, benzophenonie, anthraquinone, anthrone, and anthrone-like heterocycles, and their substituted derivatives. Examples of such coating agents include 4,5-bis(4-benzoylphenylmethyleneoxy) benzene-1,3-disulfonic acid di(potassium and/or sodium) salt, 2,5-bis(4-benzoylphenylmethyleneoxy)benzene-1,4-disulfonic acid di(potassium and/or sodium) salt (Compound II), and 2,5-bis(4-benzoylphenylmethyleneoxy)benzene-1-sulfonic acid monopotassium and/or monosodium salt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.