Method for manufacturing fluoropolymers

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9803036
APP PUB NO 20120283383A1
SERIAL NO

13515973

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The invention pertains to a process for manufacturing a (per)fluoropolymer, said process comprising polymerizing one or more fluorinated monomers in the presence of a multi-phase medium, said medium comprising:

    (A) a water phase [phase (W)];(B) at least one fluorinated surfactant [surfactant (FS)] having formula (I) here below:Rf—(OCF2CF2)k-1—O—CF2—COOXa  (I)wherein Rf is a C1-C3 perfluoroalkyl group comprising, optionally, one or more ether oxygen atoms, k is 2 or 3 and Xa is a selected from a monovalent metal and an ammonium group of formula NRN4, wherein RN, equal or different at each occurrence, is a hydrogen atom or a C1-C3 alkyl group;(C) an oil phase [phase (O)] comprising: at least one non-functional (per)fluoropolyether (non-functional PFPE) comprising at least one (per)fluoropolyoxyalkylene chain [chain (RF)] andat least one functional (per)fluoropolyether (functional PFPE) comprising at least one (per)fluoropolyoxyalkylene chain [chain (R′F)] and having a number average molecular weight of at least 1000 and a solubility of less than 1% by weight in water at 25° C.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
SOLVAY SPECIALTY POLYMERS ITALY S P AITALY MILAN

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chernysheva, Liubov Caronno Pertusella, IT 13 15
Kapeliouchko, Valeri Alessandria, IT 18 136
Pieri, Riccardo Milan, IT 17 112

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Apr 30, 2025
11.5 Year Payment $7400.00 $3700.00 $1850.00 Apr 30, 2029
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00