Manufacturing method of an eco friendly foaming package material
US9056423B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2013 |
| Grant date | Jun 16, 2015 |
| Priority date | — |
| Expiry date | Feb 6, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J9/32
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A manufacturing method of an eco friendly foam package material includes a raw material mixing step for mixing raw materials uniformly and thoroughly to form a mixed raw material, a raw material hybrid-melting step for performing a hybrid-melting process to form a hybrid-melted material, a particle forming step for performing the particle forming process by putting the hybrid-melted material into a pelletizer to form plastic particles, and a foam extrusion step. In the foam extrusion step the plastic particles are melted to become a gelatinous state material, and foamed with non-chemical method. Since the properties of the biodegradable polymer are changed by the decomposition enzyme, and further to mix with bio-cellulose and the industrial starch, such that the eco friendly foam package material with compostability is obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.