Coupling agents and compositions produced using them

• US 8,575,273 B2
• Filed: 11/26/2008
• Issued: 11/05/2013
• Est. Priority Date: 11/26/2008
• Status: Active Grant

• Current Assignee: Schlumberger Technology Corporation (Schlumberger NV)
• Original Assignee: Schlumberger Technology Corporation (Schlumberger NV)
• Inventors: Tu, Huilin, Robisson, Agathe, Ramier, Julien
• Primary Examiner(s): Peng, Kuo-Liang
• Application Number:
  US12/324,104
• Publication Number:
  US 20100130687A1
• Time in Patent Office: 1,805 Days
• Field of Search: 525/199, 523/213
• US Class Current: 525/199
• CPC Class Codes: C07F 7/1804 Compounds having Si-O-C linkages Si-O-acyl linkages C07F7/1896
• CPC Class Codes: C08F 114/18 Monomers containing fluorine
• CPC Class Codes: C08F 14/18 Monomers containing fluorine
• CPC Class Codes: C08F 14/28 Hexafluoropropene
• CPC Class Codes: C08F 2/00 Processes of polymerisation
• CPC Class Codes: C08F 214/18 Monomers containing fluorine
• CPC Class Codes: C08K 5/5455 containing at least one group
• CPC Class Codes: C08K 5/5477 containing nitrogen in a heterocyclic ring

Abstract

Certain embodiments described herein are directed to silane coupling agents that may be used, for example, to covalently couple a polymer to a filler. In some examples, devices that include the polymer-silane coupling agent-filler compositions are also described.

Claims

1. A composition comprising a fluoropolymer covalently coupled to a filler through a thermally stable silane coupling agent, the silane coupling agent selected from the group consisting of TAIC-silane, TMAIC-silane, TAC-silane and combinations thereof, in which substantially all of the reactive sites of the filler are covalently coupled to the silane coupling agent.

2. The composition of claim 1, in which the fluoropolymer is selected from the group consisting of vinylidene fluoride (VDF), tetrafluoroethylene (TFE), hexafluoropropylene (HFP), chlorotrifluoroethylene (CTFE), and a perfluoro(alkylvinyl ether) (PAVE).

3. The composition of claim 2, in which the filler is selected from the group consisting of precipitated silica, amorphous silica, vitreous silica, fumed silica, fused silica, quartz, glass, aluminum, aluminum-silicate (e.g., clays), copper, tin, talc, inorganic oxides (e.g. Al₂O₃, Fe₂O₃, TiO₂, Cr₂O₃), steel, iron, asbestos, nickel, zinc, silver, lead, marble, chalk, gypsum, barites, graphite, carbon black, treated carbon black.

4. The composition of claim 1, further comprising at least one silane coupling agent having a formula as shown in formulae (XVII)(a)-(XIX)(p).

5. The composition of claim 1, further comprising at least one of an additive a viscosity modifier or a processing aid.