Azlactone copolymers
US4981933A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 1989 |
| Grant date | Jan 1, 1991 |
| Priority date | — |
| Expiry date | Jun 23, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/142
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Azlactone copolymers having at least two different reactive groups and useful as intermediates for the production of a variety of useful polymeric materials contain repeating units according to the formula (I) ##STR1## wherein R.sup.1 is hydrogen or alkyl (e.g., methyl); each of R.sup.2 and R.sup.3 is hydrogen, alkyl (e.g., methyl, ethyl, propyl, isopropyl); aryl (e.g., phenyl, naphthyl), alkaryl (e.g., tolyl), aralkyl (e.g., benzyl), cycloalkyl (e.g., cyclohexyl, adamantyl), or R.sup.2 and R.sup.3 together with the carbon atom to which they are bonded constitute a carbocyclic or heterocyclic ring; each of R.sup.4 and R.sup.5 is hydrogen or alkyl (e.g., methyl, ethyl); Z is halogen, such as chlorine and each of a and b represents a mole proportion of each of the respective units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.