[미국특허]
Elastomer compositions with silane functionalized silica as reinforcing fillers
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C08K-003/36
C08F-008/18
F04B-023/00
F04C-002/107
C07F-007/18
출원번호
US-0335086
(2011-12-22)
등록번호
US-9403962
(2016-08-02)
발명자
/ 주소
Tu, Huilin
Robisson, Agathe
출원인 / 주소
SCHLUMBERGER TECHNOLOGY CORPORATION
대리인 / 주소
Laffey, Bridget M.
인용정보
피인용 횟수 :
0인용 특허 :
26
초록
Certain embodiments described herein are directed to silane functionalized fillers that may be, for example, covalently coupled to a polymer. In some examples, devices that include the filler reinforced polymer compositions are also described.
대표청구항▼
1. A composition suitable for use in high temperature downhole environments greater than 150° C. comprising a fluoropolymer covalently coupled to a filler through a thermally stable silane coupling agent, the fluoropolymer comprising a cure site monomer incorporated therein, wherein the silane coupl
1. A composition suitable for use in high temperature downhole environments greater than 150° C. comprising a fluoropolymer covalently coupled to a filler through a thermally stable silane coupling agent, the fluoropolymer comprising a cure site monomer incorporated therein, wherein the silane coupling agent is bonded to the cure site monomer of the fluropolymer and wherein the silane coupling agent has a chemically identical reactive moiety to the cure site monomer and wherein the filler is surface treated with the silane coupling agent; and the cure site monomer is selected from one of bromine-containing olefins, bromine-containing vinyl ethers, iodine-containing olefins, iodine-containing vinyl ethers, fluorine-containing olefins having a nitrile group, fluorine-containing vinyl ethers having a nitrile group, and non-conjugated dienes. 2. The composition of claim 1, in which the fluoropolymer is synthesized using monomers 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, copper, tin, talc, inorganic oxides, steel, iron, asbestos, nickel, zinc, silver, lead, marble, chalk, gypsum, barites, graphite, carbon black, and treated carbon black. 4. The composition of claim 1, wherein the silane coupling agent has the formula Qm-Si—Zn, where Q comprises one or more groups that can provide covalent attachment to the polymer, Z comprises one or more groups that can provide covalent attachment to the filler, and the sum of m+n is equal to four. 5. The composition of claim 4, wherein Q is —R″-G or —CR′2—CR′—R″-G, where R′ is a hydrogen or a fluorine, R″ is a linear or branched C1-C18 alkyl group, optionally containing one or more ether oxygen atoms and optionally fluorinated, and G is a halogen, a nitrile group, or a vinyl group. 6. The composition of claim 1, in which all of the reactive sites of the filler are covalently coupled to the silane coupling agent. 7. The composition of claim 1, wherein the silane coupling agent has chemically identical reactive moiety as the pendant group of the cure site monomer. 8. A moving or progressive cavity motor or pump assembly having an inlet end and an outlet end for use in a downhole environment, the motor or pump comprising: a housing;a rotor and a stator disposed within the housing, wherein a surface of the rotor or the stator is made of an elastomer material to permit a seal to form between contacting surfaces of the rotor and the stator; wherein the elastomer material comprises a fluoropolymer covalently coupled to a filler through a thermally stable silane coupling agent, wherein the silane coupling agent is bonded to a cure site moiety of the fluropolymer and wherein the silane coupling agent has a chemically identical reactive moiety to a cure site moiety of the fluoropolymer and wherein the filler is surface treated with the silane coupling agent. 9. The motor or pump of claim 8, in which the polymer is a fluoropolymer synthesized using monomers selected from the group consisting of vinylidene fluoride (VDF), tetrafluoroethylene (TFE), hexafluoropropylene (HFP), chlorotrifluoroethylene (CTFE), and a perfluoro(alkylvinyl ether) (PAVE). 10. The motor or pump of claim 9, 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, copper, tin, talc, inorganic oxides, steel, iron, asbestos, nickel, zinc, silver, lead, marble, chalk, gypsum, barites, graphite, carbon black, and treated carbon black. 11. The motor or pump of claim 8, wherein the silane coupling agent has the formula Qm-Si—Zn, where Q comprises one or more groups that can provide covalent attachment to the polymer, Z comprises one or more groups that can provide covalent attachment to the filler, and the sum of m+n is equal to four. 12. The motor or pump of claim 11, wherein Q is —R″-G or —CR′2—CR′—R″-G, where R′ is a hydrogen or a fluorine, R″ is a linear or branched C1-C18 alkyl group, optionally containing one or more ether oxygen atoms and optionally fluorinated, and G is a halogen, a nitrile group, or a vinyl group. 13. The motor or pump of claim 8, wherein the fluoropolymer comprises a cure site monomer incorporated therein. 14. The motor or pump of claim 13, wherein the silane coupling agent has chemically identical reactive moiety as the pendant group of the cure site monomer. 15. The motor or pump of claim 13, wherein the cure site monomer is selected from one of bromine-containing olefins, bromine-containing vinyl ethers, iodine-containing olefins, iodine-containing vinyl ethers, fluorine-containing olefins having a nitrile group, fluorine-containing vinyl ethers having a nitrile group, and non-conjugated dienes.
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