Melt spinable concentrate pellets having enhanced reversible thermal properties
US6793856B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2001 |
| Grant date | Sep 21, 2004 |
| Priority date | — |
| Expiry date | May 4, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/14
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for manufacturing extrudable/melt spinnable concentrate pellets which contain phase change materials (PCMs), whether the PCMs are micro-encapsulated absorbed into carrier polymers, or non-micro-encapsulated within the concentrate pellets. The polymer matrix within the concentrate pellets can be any thermoplastic polymer or combination of thermoplastic polymers, and the concentrate pellets can then be blended into similar thermoplastic polymers to form mono-filament melt spun fibers, extruded films, injection molded products, etc., or the concentrate pellets can be blended with other thermoplastic polymers to form bi-component or multi-component melt spun fibers, extruded films, injection molded products, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.