Propane diol-based polyester resin and shrink film
US7008698B2 · kind B2 · utility
9Cited by
8References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2004 |
| Grant date | Mar 7, 2006 |
| Priority date | — |
| Expiry date | Jul 29, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A shrinkable polymer film including a modified polyester resin polymerized from monomers including a dicarboxylic acid and a glycol, wherein the glycol includes 2-methyl-1,3-propanediol, and wherein the polymer film shrinks at least about 50% in a main shrinkage direction after ten seconds in an 80 degree Celsius hot water bath.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.