Injection molding systems and methods for forming materials used in footwear and materials manufactured by said systems and methods
US9708456B2 · kind B2 · utility
1Cited by
26References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2012 |
| Grant date | Jul 18, 2017 |
| Priority date | — |
| Expiry date | Sep 20, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249953
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to systems and methods for creating a foamed part. An example method includes providing a polymer processing system, providing a mold having at least one expandable mold cavity in fluid communication with the polymer processing system, mixing polymeric material and blowing agent within the polymer processing system to produce a unfoamed mixture, injecting a volume of the mixture of polymeric material and blowing agent from the polymer processing system and into the expandable mold cavity, and expanding the mold cavity to expand the unfoamed mixture within the mold cavity and form the foamed part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.