Imidazolidinone polymers useful as nonwoven binders
US4596850A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1984 |
| Grant date | Jun 24, 1986 |
| Priority date | — |
| Expiry date | Dec 17, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D233/40
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Novel polymerizable imidazolidinone monomers, useful in the preparation of self-crosslinking polymers, have the general structure ##STR1## wherein R.sup.1 is H or a C.sub.1 -C.sub.6 linear or branched alkyl or hydroxyalkyl group; X is a divalent radical selected from the group consisting of ##STR2## with R being H or CH.sub.3, m being 0-5, and n being 1-5; R.sup.2 is H or CH.sub.3 ; R.sup.3 is H or ##STR3## with R' as defined above; and R.sup.4 and R.sup.5 are independently H or linear or branched C.sub.1 -C.sub.4 alkyl groups. In a preferred embodiment, aqueous emulsions of the imidazolidinone-containing polymers (e.g. 45-60% vinyl acetate, 34-52% butyl acrylate, and 3-6% imidazolidinone) and an acid-curing catalyst (e.g. ZnCl.sub.2) are used as formaldehyde-free binders for nonwoven textiles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.