Production of thin walled hollow polyurethane articles and polyurethane coatings on substrates
US5132129A · kind A · utility
10Cited by
16References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 14, 1990 |
| Grant date | Jul 21, 1992 |
| Priority date | — |
| Expiry date | Aug 14, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for making thin walled hollow polymeric articles or for forming a polymeric coating on a substrate, comprises contacting a suitably shaped former on a substrate to be coated with a solution of an amine-terminated prepolymer having a functionality of at least 2 in an organic solvent to form a coating on the former or substrate, drying the coating on the former or substrate, then contacting the coating on the former or substrate with a solution of a polyfunctional curing agent which is capable of reacting with the amino end groups of the prepolymer to cause chain extension and/or cross-linking of the latter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.