Rapid set latexes and foamed articles prepared therefrom
US6025404A · kind A · utility
10Cited by
13References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 20, 1998 |
| Grant date | Feb 15, 2000 |
| Priority date | — |
| Expiry date | Feb 20, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J9/30
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Rapid set cellular articles can be prepared from a latex by the steps of: a) frothing a latex that contains a dispersed polymer having pendant cationic groups or adsorbing cationic molecules or both, and pendant acid groups; and b) rendering the frothed latex sufficiently basic to make the cellular article. The cellular articles of the present invention are advantageously prepared at ambient temperatures and pressures, and in the absence of organic solvents or CFCs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.