Boron-containing nucleating agent for polyphenylene sulfide
US10233304B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 10, 2012 |
| Grant date | Mar 19, 2019 |
| Priority date | — |
| Expiry date | Oct 5, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2081/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A boron-containing nucleating agent is provided for use with a polyarylene sulfide. The boron-containing nucleating agent can have low crystallinity, a small particle size, and a large specific surface area. By selectively controlling certain aspects of the nucleating agent, the crystallization properties of a thermoplastic composition including the nucleating agent and a polyarylene sulfide can be significantly improved. For instance, the recrystallization temperature can be increased, which can allow the “cooling time” during a molding cycle to be substantially reduced. Through use of the boron-containing nucleating agent the recrystallization temperature can be greater than about 231° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.