公开(公告)号：US4483788A

公开(公告)日：1984-11-20

申请号：US475218

申请日：1983-03-14

Applicant: James E. Stangroom ,  Ian Harness

Inventor： James E. Stangroom ,  Ian Harness

IPC: C08L61/00 ,  C08G8/00 ,  C08G8/04 ,  C08G8/20 ,  C08G8/28 ,  C08J3/05 ,  C08J3/11 ,  C08L61/04 ,  C08L61/10 ,  C08L61/12 ,  C10M171/00 ,  H01B3/36 ,  H01B3/20 ,  C10M1/08

CPC classification number: C08J3/05 ,  C08G8/04 ,  C08G8/28 ,  C08J3/11 ,  C10M171/001 ,  C08J2361/06

Abstract: An electroviscous (EV) fluid composition whose fluid properties are altered in the presence of an electric field comprises water-containing particles of a phenol-formaldehyde polymer dispersed in a non-conducting liquid. The composition, selected from the broad range of fluid compositions of UK Pat. No. 1570234, possesses improved fluid properties combined with markedly reduced electrical conductivity, and is thus more suitable for use in applications such as at the interface between electronics and power hydraulics for example.In a preferred embodiment of the present invention the polymer comprises the dilithium salt of 2,2', 4,4' tetrahydroxybenzophenone condensed with formaldehyde, dispersed at 30% V/V in a mixture of brominated diphenyl methane (BDM) liquid components having the averaged formula C.sub.6 H.sub.4 Br.CH.sub.2.C.sub.6 H.sub.5.

Abstract translation: 流体性质在电场存在下改变的电粘性（EV）流体组合物包括分散在非导电液体中的苯酚 - 甲醛聚合物的含水颗粒。 该组合物选自英国专利的大量流体组合物。 具有改善的流体特性和显着降低的导电性，因此更适用于例如在电子和动力液压之间的界面处的应用。 在本发明的优选实施方案中，聚合物包含与甲醛缩合的2,2'，4,4'四羟基二苯甲酮的二锂盐，以30％V / V在溴化二苯甲烷（BDM）液体组分的混合物中分散，其具有 平均式C6H4Br.CH2.C6H5。

公开(公告)号：US5106522A

公开(公告)日：1992-04-21

申请号：US514671

申请日：1990-04-25

Applicant: James E. Stangroom ,  Ian Harness

Inventor： James E. Stangroom ,  Ian Harness

IPC: C09K3/00 ,  B01J13/00 ,  C08L61/10 ,  C10M171/00 ,  H01B3/20

CPC classification number: C10M171/001 ,  H01B3/20

Abstract: An electro-rheological fluid which comprises a solid particulate substance contained in a hydrophobic vehicle which is liquid at atmospheric pressure at least at temperatures below 50.degree. C. and which comprises a compound of the formula:(X).sub.n --Ar[Q--Z].sub.pwherein:Ar represents an aromatic nucleus;Q represents an oxygen or a sulphur atom, or a group of the formula CY.sub.1 Y.sub.2, SO, SO.sub.2, SiF.sub.2, --OSi(Y.sub.1 Y.sub.2)O-- in which Y.sub.1 and Y.sub.2, which may be the same or different, each represents a halogen or a fluorine atom or an alkyl group;X represents a halogen atom, or a nitro group, a thio(substituted or unsubstituted hydrocarbyl) group or a substituted or unsubstituted hydrocarbyl group;Z represents a substituted or unsubstituted aliphatic or alicyclic group; andn and p, which may be the same or different, each represent a number of at least 1, (n+p) not being greater than the total number of substituted sites on the aromatic nucleus, with the proviso that, where n is greater than 1, not all the n X groups need be the same and that the, or at least one of the, X group(s) represents a halogen atom; and that, where p is greater than 1, not all the pQ groups nor the pZ groups need to be the same.

Abstract translation: 一种电流变流体，其包含容纳在憎水载体中的固体颗粒物质，其在大气压下至少在低于50℃的温度下是液体，并且其包含下式的化合物：（X）n -Ar [QZ] p 其中：Ar表示芳香核; Q表示氧或硫原子，或其中Y 1和Y 2可相同或不同的式CY1Y2，SO，SO2，SiF2，-OSi（Y1Y2）O-的基团各自表示卤素或 氟原子或烷基; X表示卤素原子或硝基，硫代（取代或未取代烃基）或取代或未取代的烃基; Z表示取代或未取代的脂族或脂环族基团; 和n和p可以相同或不同，各自表示至少1（n + p）的数目不大于芳族核上的取代部位的总数，条件是其中n为 大于1，不是所有的n X基团都必须相同，并且X基团中的至少一个表示卤素原子; 并且当p大于1时，并不是所有的pQ基团和pZ基团都必须相同。