Masterbatch pellet, production method therefor and polyamide resin composition containing masterbatch pellet
US8765861B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 20, 2011 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | May 20, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/268
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A masterbatch pellet is provided for obtaining a polyamide resin composition excellent in mechanical strength and heat aging resistance. The masterbatch pellet is obtained by melt-kneading a raw material component containing a thermoplastic resin (A) and a metal oxide (B), wherein a content of the metal oxide (B) is 0.5% by mass or more and a fraction of the metal oxide (B) after the melt kneading is present as an aggregated particle of 5 μm or more in a major axis length. A proportion of the aggregated particle of 5 μm or more in a major axis length in a whole metal oxide after the melt kneading is preferably 30% by mass or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.