IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0122487
(2002-04-11)
|
발명자
/ 주소 |
- Hintzer, Klaus
- Grootaert, Werner M. A.
- Kolb, Robert E.
- Maerz, Franz
- Schwertfeger, Werner
|
출원인 / 주소 |
- 3M Innovative Properties Company
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
15 인용 특허 :
36 |
초록
▼
A composition comprising (a) a fluoropolymer having pendant imidate groups, which imidate groups have the formula: —C═NH(OR) wherein R is a C1-C10aliphatic group which aliphatic group may have F or Cl substituents; and optionally, (b) a perfluorovinyl ether of the general formula: CF2&box
A composition comprising (a) a fluoropolymer having pendant imidate groups, which imidate groups have the formula: —C═NH(OR) wherein R is a C1-C10aliphatic group which aliphatic group may have F or Cl substituents; and optionally, (b) a perfluorovinyl ether of the general formula: CF2═CFO(R′fO)a(R″fO)bRfwherein R′fand R″fare the same or are different C1-C6linear or branched perfluoroalkylene groups; a and b are, independently, 0 or an integer from 1 to 10; and Rfis a C1-C8perfluoroalkyl group or a C1-C15perfluoroalkoxy group. Also provided are a method of making a fluoropolymer composition and curable and cured articles comprising a fluoropolymer composition.
대표청구항
▼
1. A composition comprising a fluoropolymer having: (a) pendant imidate groups, which imidate groups have the formula: —C═NH(OR) wherein R is a C 1-C10aliphatic group which aliphatic group may have F or Cl substituents; and optionally, (b) interpolymerized unit of a perfluoro(vinyl ether)
1. A composition comprising a fluoropolymer having: (a) pendant imidate groups, which imidate groups have the formula: —C═NH(OR) wherein R is a C 1-C10aliphatic group which aliphatic group may have F or Cl substituents; and optionally, (b) interpolymerized unit of a perfluoro(vinyl ether) of the general formula: CF 2═CFO(R′fO)a(R″fO)bRfwherein R′fand R″fare the same or are different C1-C6linear or branched perfluoroalkylene groups; a and b are, independently, 0 or an integer from 1 to 10; and Rfis a C1-C8perfluoroalkyl group or a C1-C15perfluoroalkoxy group. 2. The composition of claim 1 wherein the fluoropolymer further comprises interpolymerized units derived from tetrafluoroethylene (TFE) and/or chlorotrifluoroethylene (CTFE); and optionally, one or more ethylenically-unsaturated monomers represented by the formulas CF2═CF—Rf1, CF2═CF—O—Rf2, and CH2═CR12, wherein Rf1is a C1-C8perfluoroalkyl, Rf2is Rf1or a C1-C15perfluoroalkoxy, and R1is selected from H, F, Cl, or a C1-C8aliphatic group which aliphatic group may have F or Cl substituents. 3. The composition of claim 1 wherein the pendant imidate groups are attached directly to a fluoropolymer backbone. 4. The composition of claim 1 wherein at least some of the pendant imidate groups have a substituted or unsubstituted alkylene chain interposed between said pendant imidate groups and the polymer backbone. 5. The composition of claim wherein at least some of the pendant imidate groups have a substituted or unsubstituted oxyalkylene chain interposed between said pendant imidate groups and the polymer backbone. 6. The composition of claim 5 wherein the pendant imidate having an interposed alkyl chain and alkoxy side chains is of the formula:wherein R, R 2, and R3are independently selected from C1-C10alkyls, which may be hydrogen-containing, partially-fluorinated, or perfluorinated, n and m are each independently 1 to 50, p is 0 to 10, q is 0 to 10, X is H, F, Cl, or Br, and Z is F or CF3. 7. The composition of claim 1 further comprising interpolymerized units derived from a cure site monomer other than the pendant imidate. 8. The composition of claim 1 wherein the fluoropolymer is perfluorinated or partially fluorinated. 9. The composition of claim 1 further comprising one or more peroxide curatives. 10. An article comprising the curable or cured composition of claim 1. 11. The composition of claim 1 further comprising one or more divalent metal amine complex catalysts. 12. The composition of claim 1 further comprising one or more coagent(s). 13. The composition of claim 1 further comprising an additional curative selected from bis-aminophenols, bis-amidooximes, ammonium salts, ammonia-generating compounds, and organometallic compounds of arsenic, antimony and tin. 14. The composition of claim 1 further comprising a catalyst composition that includes a compound having the general formula {RA}(−){QR″k}(+), wherein R is a hydrogen-containing, partially fluorinated, or perfluorinated C1-C20alkyl or alkenyl, C3-C20cycloalkyl, C6-C20cycloalkenyl, or C6-C20aryl or alkylaryl, or perfluorinated C6-C20aryl or alkylaryl; A is an acid anion or an acid derivative anion, Q is phosphorous, sulfur, nitrogen, arsenic, or antimony, k is the valence of Q, and each R″ is, independently, hydrogen or a substituted or unsubstituted C1-C20alkyl, aryl, aralkyl, or alkenyl group. 15. A composition according to claim 1 wherein the fluoropolymer comprises interpolymerized units derived from (i) tetrafluoroethylene, and (ii) one or more perfluoro(vinyl ethers) having a formula selected from the group consisting of: (a) CF2═CFO(R′fO)a(R″fO)bRf;(b) CF2═CFO(CF2CFXO)nRf;wherein X is F or CF 3; n is 0-5, and Rfis a C1-C6perfluoroalkyl group;(c) CF2═CFO[(CF2)m(CFZ)uO]nRf;wherein R fis a C1-C6perfluoroalkyl group, m is 1-5, u is 0-5, n is 0-5, and Z is F or CF3;(d) CF2═CFO[(CF2CF(CF3)O)g(CF2)kO(CF2)p]CxF2 x+1;wherein g is 0 or an integer from 1-10, k is an integer from 1-6, p is 0-3, and x is 1-5; (e) CF2═CFO(CF2)t[CF(CF3)]uO(CF2O)wCxF2x+1;wherein t is 1-3, u is 0-1, w is 0-3, and x is 1-5; and (f) CF 2═CF—[(O—CF2—CF(CF3)]n—O—(CF2)m—C═NH(ORf). 16. The composition of claim 15 wherein the one or more perfluoro(vinyl ether)(s) are selected from perfluoro(methyl vinyl ether), perfluoro(ethyl vinyl ether), and perfluoro(propyl vinyl ether). 17. The composition of claim 15 wherein the one or more perfluoro(vinyl ether)(s) are selected from CF2═CFOCF2OCF2CF2CF3, CF2═CFOCF2OCF3, CF2═CFO(CF2)3OCF3, and CF2═CFOCF2CF2OCF3. 18. The composition of claim 15 wherein the one or more perfluoro(vinyl ether)(s) comprise from about 10 to about 45 mol % of total monomer units present in the fluoropolymer. 19. The composition of claim 1 wherein the fluoropolymer comprises a fluoroelastomer containing at least 50 mol % of interpolymerized units derived from at least one of TFE, CTFE, and HFP. 20. The composition of claim 1 wherein the fluoropolymer comprises interpolymerized units derived from one or more hydrogen-containing monomers, which may have F or Cl substituents. 21. A composition according to claim 1 wherein the fluoropolymer further comprises interpolymerized units derived from monomers selected from the group consisting of perfluoroolefins, partially-fluorinated olefins, non-fluorinated olefins, vinylidene fluoride, and combinations thereof. 22. A method of making a fluoropolymer comprising polymerizing a composition comprising: (i) a fluoropolymer having a backbone, the fluoropolymer having interpolymerized units derived from tetrafluoroethylene (TFE), optionally chlorotrifluoroethylene (CTFE) and one or more ethylenically-unsaturated monomers represented by the formulas CF 2═CF—Rf1, CF2═CF—O—Rf2, and CH2═CR2wherein Rf1is a C1-C8perfluoroalkyl, Rf2is Rf1or a C1-C15perfluoroalkoxy, and each R is independently selected from H, F, Cl, or a C1-C8aliphatic group which aliphatic group may have F or Cl substituents; and (ii) a monomer having an imidate group pendant from the fluoropolymer backbone, which imidate group has the formula: —C═NH(OR) wherein R is a C 1-C10aliphatic group which aliphatic group may have F or Cl substituents; and optionally, (iii) interpolymerized units of a perfluoro(vinyl ether) of the general formula: CF2═CFO(R′fO)a(R″fO)bRf2 wherein R′ fand R″fare the same or are different C1-C6linear or branched perfluoroalkylene groups; a and b are, independently, 0 or an integer from 1 to 10; and Rf2is a C1-C8perfluoroalkyl group or a C1-C15perfluoroalkoxy group. 23. The method of claim 22 further comprising shaping the mixture; curing the shaped mixture; and optionally heat aging the cured mixture. 24. The method of claim 22 wherein the pendant imidate groups are introduced by converting nitrile groups. 25. The method of claim 24 wherein the imidate groups are introduced into the fluoropolymer composition through the steps of a) providing a nitrile group containing vinyl ether corresponding to the target imidate group; and b) reacting the nitrile group containing vinyl ether with an alcohol in the presence of a base. 26. The method of claim 24 wherein the step of converting nitrile groups is carried out using a swelling agent.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.