Flexible intermediate bulk container
US8349422B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2009 |
| Grant date | Jan 8, 2013 |
| Priority date | — |
| Expiry date | Jul 23, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1362
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a Flexible Intermediate Bulk Container (FIBC) having a body made of flexible woven fabric, and integral handling devices, wherein the fabric is woven from opaque oriented polyethylene terephthalate (PET) strips having a density of from 500 to 1300 kg/m3 and a tensile strength of at least 250 MPa.Advantages of said FIBC include directly printability with the usual type of inks, giving excellent contrast and good adhesion, without pre-treatment like a corona- or flame-treatment. The FIBC based on the PET fabric also shows higher gloss; better UV resistance; better mechanical properties, like high tensile strength and creep resistance; favorable abrasion resistance; and higher temperature resistance than a conventional big bag based on polypropylene strips.The invention further relates to such a FIBC based on stress-whitened PET tapes obtained by a special drawing process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.