Polymers of self- and hydroxyl reactive formaldehyde-free cyclic hemiamidal and hemiamide ketal crosslinking monomers
US4663410A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 1985 |
| Grant date | May 5, 1987 |
| Priority date | — |
| Expiry date | Aug 6, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F26/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A compound represented by the following formula: ##STR1## wherein R is a C.sub.3 -C.sub.24 olefinically unsaturated organic radical having functionality which renders the nitrogen atom electron deficient, the olefinic unsaturation functionality being polymerizable, PA0 R.sup.1 is hydrogen or a C.sub.1 -C.sub.4 alkyl radical, or PA0 R and R.sup.1 together with the nitrogen atom can form an olefinically unsaturated 5 to 7-member ring which has functionality that renders the nitrogen atom electron deficient and the olefinic unsaturation functionality is polymerizable, PA0 R.sup.2 and R.sup.3 are hydrogen, a C.sub.1 -C.sub.4 alkyl or acyl radical, or PA0 R.sup.2 and R.sup.3 together are a C.sub.2 -C.sub.4 alkylene group, PA0 R.sup.4 is hydrogen or a C.sub.1 -C.sub.4 alkyl, acyl, ester, amide or acid group, and PA0 n is an integer from 1 to 10, provided n is not 1 when R is (meth)acryloyl, R.sup.2 and R.sup.3 are methyl and R.sup.1 and R.sup.4 are hydrogen. Under acidic conditions the above compounds in which R.sup.1 is hydrogen afford cyclic hemiamidals and hemiamide ketals of the following formula: ##STR2## The dialkyl acetal and ketal compounds and the cyclic hemiamidal and hemiamide…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.