Radiation sensitive isocyanurate compounds
US4933452A · kind A · utility
Inventors
Key dates
| Filing date | Aug 18, 1988 |
| Grant date | Jun 12, 1990 |
| Priority date | — |
| Expiry date | Aug 18, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/105
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A radiation sensitive compound and method for making same. The compound has the general formula: ##STR1## wherein, R.sup.1 and R.sup.2, which may be the same or different, each represents lower alkyl, aryl, X, CHX.sub.2, CH.sub.2 X, CX.sub.3 or NHR.sup.3 wherein R.sup.3 represents hydrogen, lower alkyl, aryl or ##STR2## and provided at least one of R.sup.1 and R.sup.2 is CX.sub.3, X is halogen, and A.sup.1 and A.sup.2 are each residues of A.sup.1 --H and A.sup.2 --H respectively wherein A.sup.1 --H and A.sup.2 --H which may be the same or different are each compounds containing at least one group having an active hydrogen atom. The method comprises reacting together an isocyanate of the formula ##STR3## with a compound of the formula A.sup.1 --H or A.sup.2 --H to obtain the desired compound wherein R.sup.1 or R.sup.4 represents lower alkyl, aryl, X, CHX.sub.2, CX.sub.3, NCO or NHR.sup.5 wherein R.sup.5 represents hydrogen, lower alkyl or aryl and at least one of R.sup.1 and R.sup.4 is CX.sub.3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.