Abstract: Several preferred embodiments are disclosed for a tool-less blade clamping apparatus for a reciprocating tool of the type which has a reciprocating plunger which has a tool attachment receiving slot for receiving a tool attachment of the type that has a shank portion. The clamping apparatus has an unclamped position and a clamped position. In the unclamped position, a tool attachment can be easily inserted and when it is in its clamped position, the tool attachment is securely retained. The preferred embodiments have at least one spring biasing the apparatus toward the clamped position, a releasable retaining mechanism for holding the apparatus in its unclamped position after being placed in that position. When the blade shank portion is inserted into the slot a predetermined distance, the shoulders of the shank portion release the retaining mechanism to move it to its clamped position.

Abstract: A microdialysis probe with a probe body, a probe needle for introduction into a tissue, an inlet line and an outlet line for a perfusion solution and a dialysis membrane, wherein at least one hollow channel forms the outlet line and extends at least partly spirally about the probe needle on an external surface of the probe needle. The inlet for the perfusion solution may also be in the form of spiral about the external surface of the probe needle.

Abstract: An azo compound and salts thereof containing an amide linkage and at least one carboxylic acid group attached at specific positions. The azo compounds are useful as colorants in inks especially ink jet printing inks.

Abstract: A compound of Formula (1) and salts thereof: wherein: R1 and R2 are independently H or optionally substituted alkyl; X and Y are independently CO2H or COSH; Q and T are independent substituents; a+n is 0 to 4; b+m is 0 to 4; and n+m are at least 1; also ink-jet compositions, processes and printed material.

Abstract: A compound of Formula (1) and salts thereof: wherein: R1 is optionally substituted C1-4alkyl; R2 is optionally substituted aryl; R3 is CN or SO2R4; R4 is optionally substituted C1-4-alkyl or optionally substituted aryl; n is 1 to 5. also ink-jet compositions, processes and printed material.

Abstract: A compound of Formula (1) or a salt thereof useful as colorants for use in ink jet printing inks: wherein: A1 is optionally substituted phenyl; A2 is optionally substituted aryl; Q1 and Q2 are each independently an optionally substituted phenylene ring which is para connected to the —N?N— and the —NR— groups shown in Formula (1); and each R independently is H or a substituent; with the provisos that: (i) the compound of Formula (1) has at least one group selected from —SO3H and —PO3H2 groups; (ii) the compound of Formula (1) has more groups selected from —SO3H and —PO3H2 groups than the total number of —CO2H and —COSH groups; and (iii) the compound of Formula (1) is not of Formula (1a):

Abstract: A process for printing an image on a substrate comprising applying to the substrate an ink comprising a medium and compound of Formula (1) or a salt thereof wherein the compound of Formula (1) or a salt thereof is a triazine coupled azo containing colorant. The process and colorant are especially useful for ink jet printing.

Abstract: 1. A compound of Formula (1) and salts thereof: wherein: R1 and R2 are independently H or optionally substituted alkyl; X and Y are independently CO2H or COSH; Q and T are independent substituents; a+n is 0 to 4; b+m is 0 to 4; and n+m are at least 1; also ink-jet compositions, processes and printed material.

Abstract: A compound of Formula (1) or a salt thereof: wherein: A1 is optionally substituted phenyl; A2 is optionally substituted aryl; Q1 and Q2 are each independently an optionally substituted phenylene ring which is para connected to the —N?N— and the —NR— groups shown in Formula (1); and each R independently is H or a substituent; with the provisos that: (i) the compound of Formula (1) has at least one group selected from —SO3H and —PO3H2 groups; (ii) the compound of Formula (1) has more groups selected from —SO3H and —PO3H2 groups than the total number of —CO2H and —COSH groups; and (iii) the compound of Formula (1) is not of Formula (1a): The compounds are particularly useful as colorants for use in ink jet printing inks.

Abstract: A process for printing an image on a substrate comprising applying to the substrate an ink comprising a medium and compound of Formula (1) or a salt thereof: wherein: each S1, S2, S3 and S4 independently is a substituent other than a water-dispersing substituent; each W1, W2, W3 and W4 independently is a water-dispersing substituent; a, b, c and d each independently is from 0 to 4; m, n, o and p each independently is from 0 to 4; (a+m) has a value of from 0 to 4; (b+n) has a value of from 0 to 4; (c+o) has a value of from 0 to 4; (d+p) has a value of from 0 to 4; and (n+o) has a value of from 1 to 8.

Abstract: A process for printing an image on a substrate comprising applying to the substrate an ink comprising a medium and a mono azo compound of Formula (1) or a salt thereof: wherein: A and X are independently optionally substituted aryl or heteroaryl; B is independently optionally substituted arylene or heteroarylene, in either case comprising a phenylene ring which is attached to the —N?N— and —NRa— groups in the compound of Formula (1) in the para positions; Ra and Rb are independently H, optionally substituted alkyl or optionally substituted aryl; ?the compound of Formula (1) or a salt thereof is a water-soluble dye; and the ink is applied to the substrate by means of an ink jet printer.

Abstract: A process for printing an image on a substrate comprising applying to the substrate by means of an ink jet printer an ink comprising a compound of Formula (1) or salt thereof: Also claimed are compounds, inks, printed substrates and the use of compounds in preparing ink jet printing inks. The compounds provide inks which when printed exhibit good light fastness and ozone fastness.

Abstract: Monomers and dimers of mono-azo compounds of formula wherein: D is an optionally substituted aryl or an optionally substituted heteroaryl group; R1 and R2 are each independently optionally substituted alkyl: halo: amino: —NR4R5; wherein R4 is H, optionally substituted alkyl, optionally substituted alkoxy, optionally substituted acyl, optionally substituted aryl, optionally substituted heterocyclyl; and R5 is optionally substituted alkyl, optionally substituted alkoxy, optionally substituted acyl, optionally substituted aryl, optionally substituted heterocyclyl or R4 together with R5 and the nitrogen to which they are attached forms an optionally substituted 5 or 6 membered ring: —OR6; wherein R6 is H or optionally substituted alkyl: or —SR7; wherein R7 is optionally substituted alkyl; R3 is amino: halo; —NR4R5; wherein R4 is H, optionally substituted alkyl, optionally substituted alkoxy, optionally substituted acyl, optionally substituted aryl, optionally substituted heterocyclyl; and R5 is optionally su

Abstract: A compound of Formula (1) and salts thereof: wherein: A and B are each independently selected from the group consisting of —SO3H, —CO2H, —PO3H2, —NHCOR4, alkoxy; R1 and R2 are each independently H or optionally substituted C1-4alkyl; R3 and R4 are each independently optionally substituted C1-4alkyl; m is 1 or 2; and n is 1 to 3. Also compositions, inks, printed material, ink-jet printing processes and ink-jet cartridges.

Abstract: A compound of Formula (1) or a salt thereof: wherein: A1 and A2 are each independently optionally substituted aryl; Q1 and Q2 are each independently an optionally substituted arylene or polycyclic heteroarylene group each comprising a phenylene ring which is para connected to the —N?N— and the —NR— groups shown in Formula (1); each R is independently H or a substituent; each X is independently selected from O, S or NRa wherein Ra is H or a substituent, provided that at least one of the groups represent by X is O or S; L is a linking group; and provided that the groups represented by the formula XLX do not contain any group selected from sulfonic acid, phosphonic acid, carboxylic acid and sulfonamide groups. Inks containing these compounds, have particularly good ozone-fastness, optical density, colour space and especially good light-fastness.

Abstract: A process for printing an image on a substrate comprising applying thereto by means of an ink jet printer an ink comprising a compound of Formula (1): wherein one of A and B is an optionally substituted heteroaryl group containing a ring sulphur atom and the other is an optionally substituted aryl or heteroaryl group and R1, X and Y are as specified. Also claimed are compounds of Formula (1) and various compositions containing the same.

Abstract: A process for printing an image on a substrate by means of an ink-jet printer which comprises applying thereto a composition comprising a liquid medium and a mono-azo compound of Formula (1) and salts thereof: wherein: D is an optionally substituted aryl group carrying at least one direct substituent selected from the group consisting of —SO3H, —CO2H, —PO3H2 or an optionally substituted nitrogen heteroaryl group carrying at least one direct substituent selected from the group consisting of —SO3H, —CO2H, —PO3H2; R1 is H: optionally substituted alkyl: amino: —NR4R5; wherein R4 is H, optionally substituted alkyl, optionally substituted alkoxy, optionally substituted acyl, optionally substituted aryl, optionally substituted heterocyclyl; and R5 is optionally substituted alkyl, optionally substituted alkoxy, optionally substituted acyl, optionally substituted aryl, optionally substituted heterocyclyl: —OR6; wherein R6 is H or optionally substituted alkyl: or —SR7; wherein R7 is optionally substituted alkyl; R

Abstract: A process for printing an image on a substrate comprising applying to the substrate by means of an ink jet printer an ink comprising a compound of Formula (1) or salt thereof: Also claimed are compounds, inks, printed substrates and the use of compounds in preparing ink jet printing inks. The compounds provide inks which when printed exhibit good light fastness and ozone fastness.

Abstract: A compound of Formula (1) or salt thereof: wherein: A1 and A2 are each independently optionally substituted aryl; Q1 and Q2 are each independently an optionally substituted arylene or polycyclic heteroarylene group each comprising a phenylene ring which is para connected to the —N?N— and the —NR— groups shown in Formula (1); and each R is independently H or a substituent; L is a linking group containing at least one group selected from sulfonic acid, phosphonic acid, carboxylic acid and sulfonamide groups. The compounds have good ozone and light fastness are especially suitable for use in ink jet printing inks.

Abstract: A compound of Formula (1) or salt thereof: Also, claimed are inks, a process for printing an image on a substrate using the inks and substrates printed with said inks. The compounds of Formula (1) provide colorants especially suitable for ink jet printing having good light and ozone fastness.