Process for preparing molded articles of hydrolyzed ethylene-vinyl acetate copolymers
US5338502A · kind A · utility
4Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 1992 |
| Grant date | Aug 16, 1994 |
| Priority date | — |
| Expiry date | Jun 22, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/909
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for preparing a molded article of a hydrolyzed ethylene-vinyl acetate copolymer which includes separately melting each of a hydrolyzed ethylene-vinyl acetate copolymer and a polyolefin, admixing the melted copolymer with the melted polyolefin in a weight ratio of the hydrolyzed ethylene-vinyl acetate copolymer to the polyolefin of 30/70 to 70/30 and molding the mixture, according to which the molded article having improved flex-crack resistance, stretchability and thermoformability can be obtained with minimized deterioration of gas-impermeability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.