Fluoropolymer compositions
US6890995B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2002 |
| Grant date | May 10, 2005 |
| Priority date | — |
| Expiry date | Oct 30, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/53
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Compositions comprising a fluoropolymer having interpolymerized units derived from a nitrogen-containing cure site monomer and a catalyst composition are provided. The catalyst composition includes a compound having the general formula:{RA}(−){QR′k}(+)or the precursors thereof, wherein R is a nonfluorinated, partially fluorinated, or perfluorinated alkyl, alkenyl, cycloalkyl, cycloalkenyl, aryl or aralkyl, A is an acid- or acid-derivative anion, Q is phosphorous, sulfur, nitrogen, arsenic, or antimony, and each R′ is hydrogen or an alkyl, aryl, aralkyl, or alkenyl group, k is the valence of Q; and optionally (c) an alcohol of the formula R2—OH, wherein R2 is an alkyl group which can be fluorinated.Also provided are a method of making a fluoropolymer, a method of increasing induction time, and fluoropolymer articles containing curable or cured fluoropolymer compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.