Polymeric pyridinium ylides and products prepared from same
US4617253A · kind A · utility
20Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 6, 1984 |
| Grant date | Oct 14, 1986 |
| Priority date | — |
| Expiry date | Jun 6, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/038
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polymers containing pyridinium ylide moieties are subjected to actinic irradiation to convert the pyridinium ylide moieties to water-insoluble or hydrophobic N-acyl-diazepine polymers. The polymeric pyridinium ylides can be used for the waterproofing or hydrophobization of surfaces and for the production of printing plates, photoresists, printed circuit boards and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.