Melt-processible polymer composition comprising fluoropolymer having long chain branches
US7375157B2 · kind B2 · utility
15Cited by
25References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 9, 2004 |
| Grant date | May 20, 2008 |
| Priority date | — |
| Expiry date | Feb 10, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/03
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polymer melt additive that is suitable for use as a processing aid in the extrusion of a non-fluorinated polymer. The polymer melt additive composition includes a fluoropolymer that has a long chain branching index (LCBI) of at least 0.2 and a zero shear rate viscosity at 265° C. of not more than 107 Pa's. The polymer melt additive may additionally include other compounds such as, polyoxyalkylene polymer or polycaprolactone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.