Tellurium (IV) compounds and compositions
US4355097A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 1980 |
| Grant date | Oct 19, 1982 |
| Priority date | — |
| Expiry date | Aug 25, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/734
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed are tellurium (IV) compounds represented by the formula: ##STR1## wherein: D is a Lewis base function containing a group VA or VIA donor atom; PA1 Q represents the atoms necessary to complete a 5- or 6-membered ring, when taken together with C, D and Te, when m is 1 and represents the atoms linking C and D when m is greater than 1; PA1 R.sub.1 and R.sub.2 are independently selected from the group consisting of hydrogen, alkyl and aryl; PA1 X is an anion; PA1 n is 1 or 2; and PA1 m is an integer from 1 to 500. These compounds are useful in an image-forming combination comprising the described Te(IV) compound and a reducing agent. The image-forming combination is useful in a variety of materials, including a dry amplification element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.