Ester copolymer resin, alloy thereof and packaging material using the same
US5750219A · kind A · utility
7Cited by
0References
12Claims
0Family size
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Key dates
| Filing date | Aug 25, 1995 |
| Grant date | May 12, 1998 |
| Priority date | — |
| Expiry date | Aug 25, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
1. An ester copolymer resin having a general formula I!. ##STR1## wherein Ar represents 2,6-naphthalene group or phenylene group, R represents ethylene group or 1,4-cyclohexylene group, and n is a number of 100 to 1000 and a polymer alloy having a solubility parameter of 10.8 to 11.9 consisting essentialy of the ester copolymer and a polycarbonate resin are provided. The ester resin and the alloy are transparent and has a beat resistance and a hot water resistance (resistance to whitening) resisting sterilization of food, a good heat sealability to aluminum closure, and recycling ability with PET resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.