1. A valve that is sealable to an associated container having an interior, the valve adapted to permit and stop flow of fluid from the container interior, the valve comprising:
a valve body sealable to the container, the valve body having a stem receiving region formed therein, the valve body including a fluid receiving region in communication with the container interior;
a valve stem mounted to the valve body, the valve stem including a hollow tubular member defining a central bore, the valve stem positioned in the stem receiving region and adapted for rotation within the stem receiving region, the valve stem including a stem opening in a portion of a wall thereof, the valve stem being rotatable between an open position to align the stem opening with the valve body fluid receiving region to permit flow from the fluid storage region through the valve, and a closed position to misalign the stem opening with the valve body fluid receiving region to stop flow through the valve,
the valve stem having a grasping portion spaced from the valve body, the grasping portion adapted to rotate the valve stem within the stem receiving region to move the valve between the open and closed positions, and
wherein at least a portion of the valve stem that is in contact with the stem receiving region is formed from a material comprising at least about 0.1 wt. % oleamide.
2. The valve of claim 1, wherein at least the portion of the valve stem that is in contact with the stem receiving region is formed from a material comprising about 0.5 wt. % to about 5 wt. % oleamide.
3. The valve of claim 1, wherein at least the portion of the valve stem that is in contact with the stem receiving region is formed from a material comprising about 1.5 wt. % to about 2 wt. % oleamide.
4. The valve of claim 1, wherein at least the portion of the valve stem that is in contact with the stem receiving region is formed from a material comprising oleamide and a polyethylene based polymer or a polypropylene based polymer.
5. The valve of claim 1, wherein the valve stem is formed from a material comprising about 98 wt. % to about 98.5 wt. % of a polymeric blend including HDPE, LLDPE, and LDPE, and about 1.5 wt. % to about 2 wt. % oleamide.
6. The valve of claim 1, wherein the grasping portion includes a frame, wherein the hollow tubular member and the frame are formed as a unitary member, wherein the unitary member is formed from a material comprising about 98 wt. % to about 98.5 wt. % of a polymeric blend including HDPE, LLDPE, and LDPE, and about 1.5 wt. % to about 2 wt. % oleamide.
7. The valve of claim 1, wherein the valve has an average torque value between about 0.5 in\xb7lbs to about 2.0 in\xb7lbs after 1 month in storage and throughout 5 days of use.
8. The valve of claim 1, wherein the valve body is formed from a material comprising 0.01 wt. % to about 0.5 wt. % oleamide.
9. A medical device for collecting biological fluids comprising:
a pouch defining a collection chamber therein;
an inlet opening for receiving biological fluids;
an outlet opening defined in a bottom portion of the pouch; and
a valve adapted to permit and stop flow of biological fluids collected in the collection chamber, the valve comprising:
a valve body sealed to the pouch in the bottom portion proximate the outlet opening, the valve body having a stem receiving region formed therein, the valve body including a fluid receiving region in communication with the collection chamber;
a valve stem mounted to the valve body, the valve stem including a hollow tubular member defining a central bore, the valve stem positioned in the stem receiving region and adapted for rotation within the stem receiving region, the valve stem including a stem opening in a portion of a wall thereof, the valve stem being rotatable between an open position to align the stem opening with the valve body fluid receiving region to permit flow from the collection chamber through the valve, and a closed position to misalign the stem opening with the valve body fluid receiving region to stop flow through the valve,
the valve stem having a grasping portion spaced from the valve body, the grasping portion adapted to rotate the valve stem within the stem receiving region to move the valve between the open and closed positions, and
wherein at least a portion of the valve stem that is in contact with the stem receiving region is formed from a material comprising at least about 0.1 wt. % oleamide.
10. The medical device of claim 9, wherein at least the portion of the valve stem that is in contact with the stem receiving region is formed from a material comprising about 0.5 wt. % to about 5 wt. % oleamide.
11. The medical device of claim 9, wherein at least the portion of the valve stem that is in contact with the stem receiving region is formed from a material comprising about 1.5 wt. % to about 2 wt. % oleamide.
12. The medical device of claim 9, wherein at least the portion of the valve stem that is in contact with the stem receiving region is formed from a material comprising oleamide and a polyethylene based polymer or a polypropylene based polymer.
13. The medical device of claim 9, wherein the valve stem is formed from a material comprising about 98 wt. % to about 98.5 wt. % of a polymeric blend including HDPE, LLDPE, and LDPE, and about 1.5 wt. % to about 2 wt. % oleamide.
14. The medical device of claim 9, wherein the grasping portion includes a frame, wherein the hollow tubular member and the frame are formed as a unitary member, wherein the unitary member is formed from a material comprising about 98 wt. % to about 98.5 wt. % of a polymeric blend including HDPE, LLDPE, and LDPE, and about 1.5 wt. % to about 2 wt. % oleamide.
15. The medical device of claim 9, wherein the valve has an average torque value between about 0.5 in\xb7lbs to about 2.0 in\xb7lbs after 1 month in storage and throughout 5 days of use.
16. The medical device of claim 9, wherein the valve body is formed from a material comprising 0.01 wt. % to about 0.5 wt. % oleamide.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A composition for ink jet printing an opto-electrical device, which composition comprises a solution-processable host material, a metal complex, and a solvent, wherein the viscosity of the composition exceeds 16 mPa\xb7s at 20\xb0 C. and which composition has a solids content of at least 1% by weight of the composition,
wherein the host material is a host polymer comprising a co-polymer having a first repeat unit selected from the group consisting of optionally substituted fluorene, optionally substituted spirofluorene, optionally substituted indenofluorene, optionally substituted phenylene, and optionally substituted oligo-phenylene, and a further repeat unit comprising an optionally substituted triarylamine as shown in the following formula:
in which each Ar is the same or different and independently represents an optionally substituted aryl or heteroaryl and any two Ar groups may be directly linked by a divalent group or a single bond; \u2014(CR4R5)n or \u2014Ar1\u2014(CR4R5)n\u2014Ar2\u2014 in which R4 and R5 are independently selected from hydrogen or a substituent, n is from 1 to 10, and Ar1 and Ar2 are independently selected from optionally substituted aryl or heteroaryl, and
wherein the metal complex comprises a metal selected from the group consisting of ruthenium, rhodium, palladium, rhenium, osmium, iridium, platinum, and gold, and wherein the solvent is selected from the group consisting of phenylnonane, 4-methylanisole, optionally substituted benzoates, and mixtures thereof.
2. A composition according to claim 1, wherein the metal complex is an emissive metal complex.
3. A composition according to claim 2, wherein the emissive metal complex comprises an optionally substituted complex having the following general formula:
ML1qL2rL3s
wherein M is a metal; each of L1, L2 and L3 is a coordinating group; q is an integer; r and s are each independently 0 or an integer; and the sum of (a. q)+(b. r)+(c.s) is equal to the number of coordination sites available on M, wherein a is the number of coordination sites on L1, b is the number of coordination sites on L2 and c is the number of coordination sites on L3.
4. A composition according to claim 1, wherein the host polymer comprises a polyfluorene copolymer.
5. A process for the manufacture of an organic light-emissive display comprising:
providing a substrate comprising a first electrode layer and a bank structure defining a plurality of wells;
depositing a conductive organic layer over the first electrode;
depositing an organic light-emissive layer over the conductive organic layer; and
depositing a second electrode over the organic light-emissive layer,
wherein the organic light-emissive layer is deposited by ink jet printing a composition according to claim 2 into the plurality of wells.
6. An organic light-emissive display obtained by the process of claim 5.