Vibrator motor

A vibrator motor in a hair clipper has a stationary piece and a moving piece. The stationary piece has a primary leg and at least one secondary leg. The primary leg fits through an opening in a coil. A flange is then press fit onto the leg so that the coil is captured on the primary leg. The flange provides a magnetic pole face that is larger than the opening in the coil, which increases the efficiency of the motor. The flange is press fit in a single operation by pressing a primary prong into a primary socket, and pressing two secondary prongs into secondary sockets. The secondary prongs are guided inwardly as they enter the secondary sockets, which closes the primary socket around the primary prong. A drive arm is secured to an arm of the moving piece. The arm is angled in relation to the drive arm to put even pressure on the moving blade in the hair clipper.

LOW-VISCOSITY POLYMER POLYOLS CHARACTERIZED BY A HIGH HYDROXYL NUMBER

The present invention relates to novel polymer polyols which have low viscosities and high hydroxyl numbers, and to a process for the preparation of these novel polymer polyols. These polymer polyols have hydroxyl numbers of 20, solids contents of about 30 to about 65% by weight and a viscosity that is less than or equal to: be. These comprise the reaction product of a base polyol, a preformed stabilizer and at least one ethylenically unsaturated monomer, in the presence of a free-radical polymerization initiator and at least one polymer control agent. The base polyol has a hydroxyl number of 60 to 1900, a functionality of 1 to 10, and an equivalent weight of 30 to 900. 2. The stable claim 1 , low-viscosity polymer polyol of which is characterized by a hydroxyl number of at least 35.3. The stable claim 1 , low-viscosity polymer polyol of claim 1 , wherein (A) said base polyol has a hydroxyl number of from 70 to 600 claim 1 , a functionality of 2 to 6 claim 1 , and an equivalent weight of from 100 to 600.4. The stable claim 1 , low-viscosity polymer polyol of claim 1 , wherein (A) said base polyol has an OH number of 90 to 400 claim 1 , a functionality of 2 to 3 claim 1 , and an equivalent weight of 200 to 500.5. The stable claim 1 , low-viscosity polymer polyol of claim 1 , wherein (C) said ethylenically unsaturated monomer comprises a mixture of styrene and acrylonitrile.6. The stable claim 1 , low-viscosity polymer polyol of claim 1 , wherein styrene and acrylonitrile are present in a weight ratio of from 80:20 to 40:60.7. The stable claim 1 , low-viscosity polymer polyol of claim 1 , wherein (D) said free-radical polymerization initiator is selected from the group consisting of azo compounds claim 1 , peroxide compounds and mixtures thereof.8. The stable claim 7 , low-viscosity polymer polyol of claim 7 , wherein said azo compounds are selected from the group consisting of azobis(isobutyronitrile) claim 7 , 2 claim 7 ,2′-azo bis(2-methylbutyronitrile) and ...

Filtration materials using fiber blends that contain strategically shaped fibers and/or charge control agents

A filtration material comprising a blend of polypropylene and acrylic fibers of round, flat, dog bone, oval or kidney bean shape in any size from 0.08 to 3.3 Dtex. A preferred blend contains about 50 weight percent polypropylene fibers and about 50 weight percent acrylic fibers. The fibers can be blended ranging from 90:10 to 10:90 polypropylene to acrylic. The shape contains 25 weight percent round, flat, oval, dog bone and kidney bean shapes. The fiber blend contains 25 weight percent of at least one size between 0.08 and 3.3 Dtex. Electret fibers incorporated within these blends have 0.02 to 33 weight percent of a charge control agent. These fibers can be used in producing electret material by corona or triboelectric charging methods.

Systems and methods for securing data in motion

Two approaches are provided for distributing trust among a set of certificate authorities. Each approach may be used to secure data in motion. One approach provides methods and systems in which the secure data parser is used to distribute trust in a set of certificate authorities during initial negotiation (e.g., the key establishment phase) of a connection between two devices. Another approach provides methods and systems in which the secure data parser is used to disperse packets of data into shares. A set of tunnels is established within a communication channel using a set of certificate authorities, keys developed during the establishment of the tunnels are used to encrypt shares of data for each of the tunnels, and the shares of data are transmitted through each of the tunnels. Accordingly, trust is distributed among a set of certificate authorities in the structure of the communication channel itself.

Secure data parser method and system

A secure data parser is provided that may be integrated into any suitable system for securely storing and communicating data. The secure data parser parses data and then splits the data into multiple portions that are stored or communicated distinctly. Encryption of the original data, the portions of data, or both may be employed for additional security. The secure data parser may be used to protect data in motion by splitting original data into portions of data, that may be communicated using multiple communications paths.

Electronically Controlled Fluid Coupling Device With Fluid Scavenge Control

A viscous fan drive with a front-mounted fan and electrical actuation without a tethered harness. The mechanical package includes an inverted viscous clutch, a drive pulley and a split electromagnetic actuator with the electrical portion mounted to a stationary mounting member. An axially moveable valve member controls the flow of viscous fluid.

HYBRID PHD/PMPO POLYOLS FOR POLYURETHANE FOAM APPLICATIONS

This invention relates to hybrid polymer polyols. These hybrid polymer polyols comprise the free-radical polymerization product of (A) a base polyol comprising (1) a polymer modified polyol selected from (a) dispersions of polyureas and/or polyhydrazodicarbonamides in a hydroxyl group containing compound and (b) polyisocyanate polyaddition polyols, and (2) optionally, a polyol having a functionality of 2 to 6 and an OH number of from 20 to 500; (B) optionally, a preformed stabilizer; and (C) one or more ethylenically unsaturated monomers, in the presence of (D) a free-radical polymerization initiator, and (E) optionally, a polymer control agent. The present invention also relates to a process for the preparation of these hybrid polymer polyols, foams prepared from these hybrid polymer polyols and to a process for the preparation of these foams. 1. A stable , low-viscosity hybrid polymer polyol comprising the free-radical polymerization product of: (a) one or more dispersions of a polyurea and/or polyhydrazodicarbonamide in a hydroxyl group containing compound, and', '(b) one or more polyisocyanate polyaddition polyols;, '(1) from 1 to 100% by weight of a polymer modified polyol selected from the group consisting of, '(A) a base polyol component comprising (2) from 0 to 99% by weight of a polyol having a functionality of from 2 to 6, and an OH number of from 20 to 500;', "wherein the sum of the %'s by weight of (A)(1) and (A)(2) totals 100% by weight of component (A);"], 'and'}(B) optionally, a preformed stabilizer; and(C) one or more ethylenically unsaturated monomers;in the presence of:(D) a free-radical polymerization initiator; and(E) optionally, a polymer control agent;wherein the solids content of the hybrid polymer polyol ranges from 20 to 70% by weight, and comprises (i) from 1% to 60% by weight of polyureas and/or polyhydrazodicarbonamides or polyisocyanate polyaddition products, and (ii) from 40% to 99% by weight of graft copolymers comprising the ...

Systems and methods for securing data in motion

The systems and methods of the present invention provide a solution that makes data provably secure and accessible—addressing data security at the bit level—thereby eliminating the need for multiple perimeter hardware and software technologies. Data security is incorporated or weaved directly into the data at the bit level. The systems and methods of the present invention enable enterprise communities of interest to leverage a common enterprise infrastructure. Because security is already woven into the data, this common infrastructure can be used without compromising data security and access control. In some applications, data is authenticated, encrypted, and parsed or split into multiple shares prior to being sent to multiple locations, e.g., a private or public cloud. The data is hidden while in transit to the storage location, and is inaccessible to users who do not have the correct credentials for access.

PREFORMED STABILIZERS USEFUL FOR THE PRODUCTION OF POLYMER POLYOLS AND POLYMER POLYOLS PRODUCED THEREFROM

Preformed stabilizers useful for the production of low viscosity, high solids polymer polyols are produced by free-radical polymerization of: (a) at least one ethylenically unsaturated macromolecule or macromer with (b) at least three different ethylenically unsaturated monomers in the presence of (c) at least one free-radical polymerization initiator, and, optionally, (d) a liquid diluent, and, optionally, (e) a chain transfer agent. 1. A preformed stabilizer formed by free-radical polymerization of a mixture comprising:(a) at least one ethylenically unsaturated macromolecule or macromer,with(b) at least three different radically polymerizable ethylenically unsaturated monomers,in the presence of(c) at least one free-radical polymerization initiator,and, optionally,(d) a liquid diluent,and, optionally,(e) a chain transfer agent2. The preformed stabilizer of in which (b) includes acrylonitrile and/or styrene.3. The preformed stabilizer of in which (b) includes a mixture of styrene and acrylonitrile in a weight ratio of 80:20 to 20:80.4. The preformed stabilizer of in which the styrene and acrylonitrile constitute at least 20% by weight of the total weight of (b).5. The preformed stabilizer of in which (b) includes an ethylenically unsaturated monomer containing a hydroxyl group.6. The preformed stabilizer of in which (b) includes at least one ethylenically unsaturated monomer selected from the group consisting of 2-hydroxyethyl acrylate claim 1 , 2-hydroxyethyl methacrylate claim 1 , hydroxypropyl acrylate claim 1 , and hydroxypropyl methacrylate.7. The preformed stabilizer of in which (b) further includes at least one ethylenically unsaturated monomer selected from the group consisting of 2-hydroxyethyl acrylate claim 4 , 2-hydroxyethyl methacrylate claim 4 , hydroxypropyl acrylate claim 4 , and hydroxypropyl methacrylate.8. The preformed stabilizer of in which (c) is selected from the group consisting of one or more peroxide initiators claim 1 , one or more azo ...

Secure data parser method and system

A secure data parser is provided that may be integrated into any suitable system for securely storing and communicating data. The secure data parser parses data and then splits the data into multiple portions that are stored or communicated distinctly. Encryption of the original data, the portions of data, or both may be employed for additional security. The secure data parser may be used to protect data in motion by splitting original data into portions of data, that may be communicated using multiple communications paths.

Engine crankshaft

A crankshaft is provided. The crankshaft includes an unsupported axially-aligned shaft section interposing an outer main bearing journal and an inner main bearing journal, the unsupported axially-aligned shaft section having a central axis aligned with a rotational axis of the crankshaft, and a pendulum absorber coupled to the unsupported axially-aligned shaft section, the pendulum absorber including a blade extending from the unsupported axially-aligned shaft section and a pendulous counterweight coupled to the blade.

POLYMER POLYOLS HAVING IMPROVED QUALITY

This invention relates to polymer polyols comprising one or more base polyols; one or more ethylenically unsaturated monomers in which at least one of the monomers is styrene which contains less than or equal to 1000 ppm of impurities; with one or more preformed stabilizers; in the presence of at least one free radical polymerization initiator; and optionally, one or more chain transfer agents. 1. A polymer polyol comprising the free-radical polymerization product of:(A) one or more base polyols;(B) optionally, one or more preformed stabilizers;with(C) one or more ethylenically unsaturated monomers, wherein at least one of said monomers is styrene which contains less than or equal to 1000 ppm of impurities;in the presence of(D) at least one free radial polymerization catalyst;and, optionally,(E) one or more chain transfer agents.2. The polymer polyol of claim 1 , wherein said impurities contain at least on compound which is selected from the group consisting of polystyrene claim 1 , phenylacetylene and divinylbenzene.3. The polymer polyol of claim 1 , wherein said styrene monomer contains less than 750 ppm of impurities.4. The polymer polyol of claim 1 , wherein said styrene monomer contains less than or equal to 400 ppm of impurities.5. The polymer polyol of claim 1 , wherein (C) said one or more ethylenically unsaturated monomers comprises a mixture of styrene monomer and acrylonitrile.6. The polymer polyol of claim 1 , which comprises (B) one or more preformed stabilizers which is a high potency preformed stabilizer claim 1 , and said stabilizer is present in an amount of at least about 0.25% by weight claim 1 , based on the total weight of the polymer polyol.7. The polymer polyol of claim 1 , wherein said free radical polymerization catalyst is selected from the group consisting of peroxides claim 1 , persulfates claim 1 , perborates claim 1 , percarbonates claim 1 , azo compounds and mixtures thereof.8. The polymer polyol of claim 1 , wherein the solids content ...

High mobility transistors

An integrated circuit containing an n-channel finFET and a p-channel finFET is formed by forming a first polarity fin epitaxial layer for a first polarity finFET, and subsequently forming a hard mask which exposes an area for a second, opposite, polarity fin epitaxial layer for a second polarity finFET. The second polarity fin epitaxial layer is formed in the area exposed by the hard mask. A fin mask defines the first polarity fin and second polarity fin areas, and a subsequent fin etch forms the respective fins. A layer of isolation dielectric material is formed over the substrate and fins. The layer of isolation dielectric material is planarized down to the fins. The layer of isolation dielectric material is recessed so that the fins extend at least 10 nanometers above the layer of isolation dielectric material. Gate dielectric layers and gates are formed over the fins.

Air turbine starter

An air turbine starter for starting an engine, comprising a housing defining an inlet, an outlet, and a flow path extending between the inlet and the outlet for communicating a flow of gas there through. A turbine member is journaled within the housing and disposed within the flow path for rotatably extracting mechanical power from the flow of gas. A gear train is drivingly coupled with the turbine member, a drive shaft is operably coupled with the gear train, and an output shaft is selectively operably coupled to rotate with the engine.

Tracking of Machine System Movements in Paving Machine

Methods and apparatus for tracking manual operations during automatic control of a surface-engaging operation, such as laying a mat on a paving surface, include automatically operating a plurality of components to perform the surface-engaging operation without the actuation of corresponding operator controls. Actuation of the operator controls and actuation of the corresponding components to perform a manual operation can occur during the automatic operation. Information corresponding to the manual operation is recorded in response to detecting actuation of the operator controls and determining that the automatic operation of the machine is occurring.

POLYMER POLYOL QUALITY

This invention relates to a process for preparing a stable low viscosity polymer polyol having a solids content of at least about 30% by weight. This process is particularly suitable for restarting the process of production after any reactor shutdown (planned or unplanned). 1. A process for preparing a stable , low viscosity polymer polyol having a solids content of at least about 30% by weight , based on the total weight of the polymer polyol , comprising: (A) one or more base polyols;', '(B) one or more pre-formed stabilizers; and', '(C) one or more ethylenically unsaturated monomers;', 'in the presence of', '(D) one or more free-radical polymerization initiators;', 'and, optionally,', '(E) one or more polymer control agents;', 'wherein the process is restarted after being stopped by (I) restarting the feed of said one or more base polyols and said one or more initiators, in which (a) the feed of said one or more base polyols and said one or more initiators is restarted simultaneously or (b) the feed of said one or more base polyols is restarted first, followed by restarting the feed of said one or more initiators; (II) continuing the polyol and initiator feed or feeds until the total feed amounts to at least 5% of the total reactor volume; and (III) restarting the feed of said one or more ethylenically unsaturated monomers wherein the ratio of monomers to total feed is ramped up to its final value over a period of not less than 25% of the reactor residence time., '(1) free-radically polymerizing2. The process of claim 1 , wherein (b) the feed of said one or more base polyols is restarted first claim 1 , and then the feed of said one or more initiators is restarted.3. The process of claim 1 , wherein (a) the feed of said one or more base polyols and of said one or more initiators is restarted simultaneously.4. The process of claim 3 , wherein the feed of said one or more base polyols is a separate feed stream than the feed of same one or more initiators.5. The ...

DITHIOCARBONATE CONTAINING POLYOLS AS POLYMER POLYOL STABILIZERS

This invention relates to novel macromers containing dithiocarbonate (or xanthate) groups, novel preformed stabilizers comprising macromers, and novel polymer polyols comprising the novel macromers and/or novel preformed stabilizers. This invention also relates to processes for the preparation of these materials. Other aspects of this invention include foams comprising the novel polymer polyols and a process for preparing foam comprising the novel polymer polyols. 1. A macromer comprising the reaction product of: (i) one or more starter polyether polyols having an equivalent weight less than 1000 Da, an OH number greater than 56 mg KOH/g polyol, and functionality of 1 to 8,', '(ii) an alkylene oxide,', 'and', '(iii) carbon disulfide,', 'in the presence of', '(iv) an alkoxylation catalyst;, '(a) a polyether dithiocarbonate polyol having an equivalent weight of 230 Da to 5600 Da, and functionality of 1 to 8, having a dithiocarbonate content of from 0.05% to 20% by weight, and which comprises the copolymerization product of a reaction mixture comprising'}with(b) an ethylenically unsaturated compound containing hydroxyl reactive groups;optionally, in the presence of(c) at least one catalyst.2. The macromer according to claim 1 , wherein (a) said polyether dithiocarbonate polyol has an equivalent weight of 280 Da to 5400 Da claim 1 , a functionality of 2 to 7 claim 1 , a dithiocarbonate content of 0.10 to 15% by weight claim 1 , and comprises the reaction product of (i) one or more starter polyether polyols having an OH number of at least 112 mg KOH/g polyol to 1850 mg KOH/g polyol claim 1 , and a functionality of 2 to 7; (ii) said alkylene oxide comprises ethylene oxide and/or propylene oxide; and (iv) said alkoxylation catalyst comprises a double metal cyanide complex catalyst.3. The macromer according to claim 1 , wherein (b) said ethylenically unsaturated compound containing hydroxyl reactive groups comprises methyl methacrylate claim 1 , ethyl methacrylate claim 1 , ...

POLYOL PREMIXES, THERMALLY INSULATING RIGID POLYURETHANE FOAMS AND METHODS FOR THEIR PRODUCTION

Polyol premixes and thermally insulating rigid polyurethane foams, such as those that can be used as a thermal insulation medium in the construction of refrigerated storage devices, are disclosed. A polymer polyol having a OH number of greater than 260 mg KOH/g is utilized. The resulting polyurethane foams can exhibit improved thermal insulation properties without sacrificing other important physical and processing properties. 1. A polyol premix comprising:(a) a polyol composition comprising a polymer polyol having an OH number of greater than 260 mg KOH/g;(b) a catalyst;(c) a physical blowing agent composition comprising at least 50% by weight, based on the total weight of the physical blowing agent composition, of a hydrocarbon; and(d) a carbon dioxide generating chemical blowing agent.2. The polyol premix of claim 1 , wherein the polymer polyol comprises polymer particles comprising a reaction product of a reaction mixture comprising:(i) a base polyol;(ii) an ethylenically unsaturated compound,optionally(iii) a preformed stabilizer, and(iv) a free radical initiator.3. The polyol premix of claim 2 , wherein the base polyol comprising a polyether polyol having a functionality of 2 to 6 and an OH number of at least 300 mg KOH/g.4. The polyol premix of claim 2 , wherein the content of ethylene oxide units in the base polyol claim 2 , based on the total weight of the base polyol claim 2 , is no more than 20% by weight.5. The polyol premix of claim 2 , wherein the ethylenically unsaturated compound comprises styrene and acrylonitrile at a weight ratio of styrene to acrylonitrile (S:AN) of 80:20 to 20:80.6. The polyol premix of claim 1 , wherein the polymer polyol has an OH number of at least 280 mg KOH/g.7. The polyol premix of claim 1 , wherein the polymer polyol is present in an amount of at least 30% by weight claim 1 , based on the total weight of the polyol composition.8. The polyol premix of claim 1 , wherein the polyol composition comprises an aromatic amine- ...

Electronic Control System For Adjusting Smoothing Tools Of A Harrow

By providing an electronic control system in communication with a hydraulic system for adjusting an angle of smoothing tools of a harrow, the smoothing tools may be adjusted more quickly and on the go, including from a tractor cab, for optimum field leveling during a tilling session. The control system may include a hydraulic control valve in communication with a linear actuator. The linear actuator may be in communication with a slide bar disposed in a channel. By configuring multiple bars of a harrow to achieve an angle of rotation defined by the slide bar, the angle of rotation for smoothing tools of the harrow may be precisely controlled by the control system.

Filtration materials using fiber blends that contain strategically shaped fibers and/or charge control agents

A filtration material comprising a blend of polypropylene and acrylic fibers of round, flat, dog bone, oval or kidney bean shape in any size from 0.08 to 3.3 Dtex. A preferred blend contains about 50 weight percent polypropylene fibers and about 50 weight percent acrylic fibers. The fibers can be blended ranging from 90:10 to 10:90 polypropylene to acrylic. The shape contains 25 weight percent round, flat, oval, dog bone and kidney bean shapes. The fiber blend contains 25 weight percent of at least one size between 0.08 and 3.3 Dtex. Electret fibers incorporated within these blends have 0.02 to 33 weight percent of a charge control agent. These fibers can be used in producing electret material by corona or triboelectric charging methods.

High mobility transistors

An integrated circuit containing an n-channel finFET and a p-channel finFET is formed by forming a first polarity fin epitaxial layer for a first polarity finFET, and subsequently forming a hard mask which exposes an area for a second, opposite, polarity fin epitaxial layer for a second polarity finFET. The second polarity fin epitaxial layer is formed in the area exposed by the hard mask. A fin mask defines the first polarity fin and second polarity fin areas, and a subsequent fin etch forms the respective fins. A layer of isolation dielectric material is formed over the substrate and fins. The layer of isolation dielectric material is planarized down to the fins. The layer of isolation dielectric material is recessed so that the fins extend at least 10 nanometers above the layer of isolation dielectric material. Gate dielectric layers and gates are formed over the fins.

Systems and methods for securing data

Systems and methods are provided for securing data. A processing device receives a data set and identifies a first subset of data from a first dimension of a multi-dimensional representation of the data set. The processing device encrypts the first subset of data using a first encryption technique to yield a first encrypted subset of data and replaces the first subset of data in the multi-dimensional representation of the data set with the first subset of encrypted data. The processing device then identifies a second subset of data from a second dimension of the multi-dimensional representation of the data set, with the second subset of data including at least a portion of the first subset of encrypted data, and encrypts the second subset of data using a second encryption technique to yield a second encrypted subset of data.

Polyethers and their use in the production of flexible polyurethane foams

Disclosed are amine-containing polyethers that are the reaction product of a reaction mixture comprising: (a) a polyether of the formula A(OZOX)n where (i) A is a polyether derived from a hydroxyl-functional polyether having a hydroxyl functionality (y) of 1 to 8 and an OH number of 20 to 400 mg KOH/g, wherein the free hydroxyl functionality of A is y-m, wherein m is a number having a value of 1 to 7; (ii) Z is a divalent residue comprising an alkylene oxide moiety; (iii) X is an amine reactive moiety; and (iv) n is a number having a value of 1 to 7; and (b) an amino diphenylamine. Polyol compositions that include an amine-containing polyether polyol are also described, a polymer polyol compositions, polyurethane foams and methods of producing flexible polyurethane foams.

Polymer polyol compositions and their use in the production of flexible polyurethane foams

Disclosed are polymer polyol compositions that include an amino diphenylamine, optionally in combination with other antioxidants, such as phenolic antioxidants, as well the use of such polymer polyol compositions in the production of flexible polyurethane foams. The polyurethane foam includes a reaction product of a polyisocyanate component and an isocyanate-reactive component that includes the polymer polyol composition.

Tire protectant applicator system

A system for applying chemical liquid protectant to tires which has an applicator with a foam pad for mating with the tire and a foam support structure for mating with the foam pad, where the foam pad has a quick connection to a source of pressurized chemical liquid protectant; the system having a nozzle for dispensing chemical liquid protectant into an area central to the foam pad.

Gateway for cloud-based secure storage

The systems and methods disclosed herein transparently provide an improved scalable cloud-based dynamically adjustable or configurable storage volume. In one aspect, a gateway provides a dynamically or configurably adjustable storage volume, including a local cache. The storage volume may be transparently adjusted for the amount of data that needs to be stored using available local or cloud-based storage. The gateway may use caching techniques and block clustering to provide gains in access latency compared to existing gateway systems, while providing scalable off-premises storage.

ETHYLENICALLY UNSATURATED MACROMERS PRODUCED FROM A RESIDUE OF ISOCYANATE MANUFACTURING, RELATED PREFORMED STABILIZERS, POLYMER POLYOLS, FOAM-FORMING COMPOSITIONS AND FOAMS

Disclosed are ethylenically unsaturated macromers produced using a residue of an isocyanate manufacturing process. Also disclosed are preformed stabilizers produced using such macromers, polymer polyols produced using such preformed stabilizers, foam-forming compositions produced using such polymer polyols, and foam produced using such compositions. 1. An ethylenically unsaturated macromer comprising the reaction product of a reaction mixture comprising:(a) an isocyanate residue;(b) a polyol having a hydroxyl number of 20 to 75 and a hydroxyl functionality of 2 to 8; and(c) a hydroxyl-reactive compound containing reactive ethylenic unsaturation.2. The macromer of claim 1 , wherein the isocyanate residue is an organic particulate that has a content of bound isocyanate that is 0.1 to 10% by weight claim 1 , based on the total weight of the organic particulate.3. The macromer of claim 1 , wherein the isocyanate residue is a phosgenation product of toluene diamine containing less than 0.5% by weight of ortho-toluenediamine isomers claim 1 , based on the total weight of toluene diamine.4. The macromer of claim 1 , wherein the isocyanate residue is an organic particulate comprising: (i) a crosslinked polymer comprising aromatic groups claim 1 , biuret groups claim 1 , urea groups claim 1 , and carbodiimide groups; and (ii) a high-boiling hydrocarbon.5. The macromer of claim 4 , wherein the organic particulate is a product of a process for the production of a distilled aromatic polyisocyanate by (1) the reaction of the corresponding amine with phosgene in a suitable solvent and multi-stage distillative work-up of the isocyanate solution obtained claim 4 , and (2) continuously feeding the residue obtained from the distillation process and from 2 to 50 weight % of a high-boiling hydrocarbon which is inert under the distillation conditions to a heated claim 4 , product-agitating vacuum drier with a horizontal shaft.6. The macromer of claim 4 , wherein the organic particulate ...

HIGH FUNCTIONALITY ISOCYANATES AS POLYMER POLYOL STABILIZERS AND THE POLYMER POLYOLS PREPARED FROM THESE STABILIZERS

A high functionality macromer that is the reaction product of (1) a polyisocyanate having an NCO group content of about from about 10% to about 33% having a functionality greater than 2, (2) at least one alcohol with reactive unsaturation, and (3) a hydroxyl group-containing polyether having an OH number of from 9 to 60 and a functionality of from 1 to 6 is used to produce a pre-formed stabilizer that is used to produce a high solids content polymer polyol. 1. A high functionality macromer which comprises the reaction product of:(a) a polyisocyanate having an NCO group content of about from about 10% to about 33% having a functionality greater than 2,(b) at least one alcohol with reactive unsaturation,and(c) a hydroxyl group-containing polyether having an OH number of from 9 to 60 and a functionality of from 1 to 6,optionally, in the presence of(d) a catalyst.2. The macromer of in which (a) is selected from the group consisting of aliphatic isocyanates claim 1 , aromatic isocyanates claim 1 , and mixtures thereof.3. The macromer of in which (b) is selected from the group consisting of hydroxyalkyl acrylates claim 1 , hydroxyalkyl methacrylates claim 1 , hydroxyaryl acrylates claim 1 , hydroxyaryl methacrylates claim 1 , aromatic-substituted ethylenically unsaturated monols claim 1 , isopropenylphenyl monols claim 1 , hydroxyl nitriles claim 1 , and mixtures thereof.4. The macromer of in which (b) comprises 2-hydroxyethyl methacrylate.5. The macromer of in which (a) and (b) are reacted before being reacted with (c).6. A process for the preparation of a high functionality macromer claim 1 , comprising: (a) a polyisocyanate having an NCO group content of about 10 to about 33% having a functionality greater than 2,', '(b) at least one alcohol with reactive unsaturation and', '(c) a hydroxyl group-containing polyether having an OH number of from 9 to 60 and a functionality of from 1 to 6,, '(I) reacting'} '(d) a catalyst.', 'optionally, in the presence of'}7. The process ...

POLYBUTADIENE MODIFIED POLYMER POLYOLS, FOAMS PREPARED FROM POLYBUTADIENE MODIFIED POLYMER POLYOLS, AND PROCESSES FOR THE PRODUCTION THEREOF

This invention relates to polybutadiene modified polymer polyols which comprise one or more base polyols, at least one preformed stabilizer, one or more ethylenically unsaturated monomers, and polybutadiene, in the presence of at least one free radical polymerization catalyst, and optionally, one or more chain transfer agents. The polybutadiene present in these polybutadiene modified polymer polyols may be carried into the polymer polyol through the preformed stabilizer, by a polybutadiene containing component that is added separately from the preformed stabilizer to the polymer polyol, or a combination thereof, with the total amount of polybutadiene ranging from 0.03 to 1.0% by weight of polybutadiene, based on 100% by weight of the polymer polyol. The present invention also relates to processes for preparing these polybutadiene modified polymer polyols, to foams prepared from these polybutadiene modified polymer polyols, and to processes for producing foams from these polybutadiene modified polymer polyols.

Systems and methods for secure multi-tenant data storage

Systems and methods are provided for transmitting data for secure storage. For each of two or more data sets, a plurality of shares are generated containing a distribution of data from an encrypted version of the data set. The shares are then stored in a shared memory device, wherein a data set may be reconstructed from a threshold number of the associated plurality of shares using an associated key. Also provided are systems and methods for providing access to secured data. A plurality of shares containing a distribution of data from an encrypted version of a data set are stored in a memory device. A client is provided with a virtual machine that indicates the plurality of shares, and the capability to reconstruct the data set from the plurality of shares using an associated key.

Method to improve slip resistance of silicon wafers

By controlling the concentration and size of bulk micro defects (BMD) during the manufacture of an integrated circuit slip and associated yield loss due to slip may be eliminated. A process for eliminating slip that is customized to an integrated circuit (IC) manufacturing flow is disclosed. The process is adapted to the oxygen content of the starting material and to the thermal budget of an IC manufacturing flow and generates a sufficient concentration of BMDs of a size that is optimized to getter microcracks thereby eliminating slip. Slip is eliminated in unpatterned wafers and in wafers containing shallow trench isolation and deep trench isolation using a BMD nucleation anneal and a BMD growth anneal.

Amine based polymer polyol stabilizers

This invention relates to novel macromers prepared from amine based polyols, preformed stabilizers prepared from these macromers, and to polymer polyols prepared from the preformed stabilizers. The present invention also relates to processes for preparing these compositions.

ACTIVE POLYMER POLYOLS AND A PROCESS FOR THEIR PRODUCTION

Polymer polyols having a solids content of greater than 40 wt. %, a total ethylene oxide content of up to 25 wt. %, and a viscosity at 25° C. of less than 15,000 centistokes are produced by reacting (1) a base polyol having active hydrogen atoms with an ethylene oxide content of from 15 to 40 wt. % that has been formed in the presence of a double metal cyanide (DMC) catalyst, (2) one or more unsaturated monomers, (3) at least one radical initiator, optionally (4) a preformed stabilizer and optionally (5) a chain transfer agent. These polymer polyols (PMPOs) are useful in the preparation of polyurethane foams and elastomers. 1. A polymer polyol having a solids content of greater than 40% by weight , a total ethylene oxide content of up to 25% , an ethylene oxide content of up to 40% in the base polyol , and a viscosity at 25° C. of less than 15 ,000 centistokes comprising a reaction product ofa) at least one base polyol containing active hydrogen atoms having a molecular weight of less than 3500 and a total ethylene oxide content of from 15 to 40 formed in the presence of a DMC catalyst,b) at least one unsaturated monomer in an amount such that the polymer polyol will have a solids content of from 40 to 60 wt. %, and, optionallyc) a preformed stabilizer formed in the presence of;d) at least one radical initiator, and optionallye) a chain transfer agent2. The polymer polyol of having a solids content of from 40 to 60% by weight.3. The polymer polyol of having a solids content of approximately 55% by weight.4. The polymer polyol of having a viscosity at 25° C. of less than 10 claim 1 ,000 centistokes.5. The polymer polyol of in which more than one unsaturated monomer was used in its production.6. The polymer polyol of in which styrene and acrylonitrile were used in its production.7. The polymer polyol of in which the molecular weight of the base polyol used is less than 3 claim 1 ,000 Da.8. A process for the production of a polymer polyol having a solids content of at ...

DITHIOCARBONATE CONTAINING POLYOLS AS POLYMER POLYOL STABILIZERS

This invention relates to novel macromers containing dithiocarbonate (or xanthate) groups, novel preformed stabilizers comprising macromers, and novel polymer polyols comprising the novel macromers and/or novel preformed stabilizers. This invention also relates to processes for the preparation of these materials. Other aspects of this invention include foams comprising the novel polymer polyols and a process for preparing foam comprising the novel polymer polyols. 1. A macromer comprising the reaction product of: (i) one or more starter polyether polyols having an equivalent weight less than 1000 Da, an OH number greater than 56 mg KOH/g polyol, and functionality of 1 to 8,', '(ii) an alkylene oxide,', 'and', '(iii) carbon disulfide,', 'in the presence of', '(iv) an alkoxylation catalyst;, '(a) a polyether dithiocarbonate polyol having an equivalent weight of 230 Da to 5600 Da, and functionality of 1 to 8, having a dithiocarbonate content of from 0.05% to 20% by weight, and which comprises the copolymerization product of a reaction mixture comprising'}with(b) an ethylenically unsaturated compound containing hydroxyl reactive groups;optionally, in the presence of(c) at least one catalyst.2. The macromer according to claim 1 , wherein (a) said polyether dithiocarbonate polyol has an equivalent weight of 280 Da to 5400 Da claim 1 , a functionality of 2 to 7 claim 1 , a dithiocarbonate content of 0.10 to 15% by weight claim 1 , and comprises the reaction product of (i) one or more starter polyether polyols having an OH number of at least 112 mg KOH/g polyol to 1850 mg KOH/g polyol claim 1 , and a functionality of 2 to 7; (ii) said alkylene oxide comprises ethylene oxide and/or propylene oxide; and (iv) said alkoxylation catalyst comprises a double metal cyanide complex catalyst.3. The macromer according to claim 1 , wherein (b) said ethylenically unsaturated compound containing hydroxyl reactive groups comprises methyl methacrylate claim 1 , ethyl methacrylate claim 1 , ...

POLYMER POLYOLS COMPRISING AMINE BASED POLYETHER POLYOLS AND A PROCESS FOR PREPARING THESE POLYMER POLYOLS

This invention relates to polymer polyols which comprise one or more base polyols, at least one preformed stabilizer, one or more ethylenically unsaturated monomers, and, in the presence of at least one free radical polymerization catalyst, and optionally, one or more polymer control agents. The base polyol of these polymer polyols comprises one or more amine initiated polyols. The present invention also relates to processes for preparing these polymer polyols, to foams prepared from these polymer polyols, and to processes for producing foams from these polymer polyols. 2. The polymer polyol of claim 1 , wherein (a) said one or more base polyols comprises (1) one or more amine initiated polyols wherein the amine initiator is free of tertiary amine groups claim 1 , and (2) one or more hydroxyl initiated polyols having a functionality of from about 2 to about 8 and a hydroxyl number of from about 10 to about 1000 claim 1 , wherein said hydroxyl initiated polyols are selected from the group consisting of polyether polyols claim 1 , polyester polyols claim 1 , polyetherester polyols and mixtures thereof.3. The polymer polyol of claim 1 , wherein the resultant polymer polyol has a viscosity≤Ve [{'sub': 'b', 'V=viscosity of the base polyol in millipascal·second (mPa·s);'}, 'and', 'X=the weight % of solids in the polymer polyol/(100−the weight % of solids in the polymer polyol)., 'wherein4. The polymer polyol of claim 1 , wherein (c) said ethylenically unsaturated monomers comprise styrene and acrylonitrile.5. The polymer polyol of claim 1 , wherein (a) said one or more base polyols comprise (1) one or more amine initiated polyols having a functionality of about 2 to about 8 and an equivalent weight ranging from about 75 to about 400.6. The polymer polyol of claim 4 , wherein styrene and acrylonitrile are present in a weight ratio of from 80:20 to 20:80.7. The polymer polyol of claim 1 , wherein the solids content of said polymer polyols ranges from about 15% by weight up ...

Reinforced composite cylinder block

Systems and methods are provided for forming an engine comprising a thermoset composite engine block. One example method includes reinforcing the engine block with a plurality of metal strips, wherein a first portion of the plurality of metal strips are positioned in a substantially transverse direction of the engine block and a second portion of the plurality of metal strips are positioned in a substantially longitudinal direction of the engine block. The plurality of metal reinforcing strips may provide additional reinforcement to the engine block.

Filtration materials using fiber blends that contain strategically shaped fibers and/or charge control agents

A filtration material comprising a blend of polypropylene and acrylic fibers of round, flat, dog bone, oval or kidney bean shape in any size from 0.08 to 3.3 Dtex. A preferred blend contains about 50 weight percent polypropylene fibers and about 50 weight percent acrylic fibers. The fibers can be blended ranging from 90:10 to 10:90 polypropylene to acrylic. The shape contains 25 weight percent round, flat, oval, dog bone and kidney bean shapes. The fiber blend contains 25 weight percent of at least one size between 0.08 and 3.3 Dtex. Electret fibers incorporated within these blends have 0.02 to 33 weight percent of a charge control agent. These fibers can be used in producing electret material by corona or triboelectric charging methods.

High mobility transistors

An integrated circuit containing an n-channel finFET and a p-channel finFET has a dielectric layer over a silicon substrate. The fins of the finFETs have semiconductor materials with higher mobilities than silicon. A fin of the n-channel finFET is on a first silicon-germanium buffer in a first trench through the dielectric layer on the substrate. A fin of the p-channel finFET is on a second silicon-germanium buffer in a second trench through the dielectric layer on the substrate. The fins extend at least 10 nanometers above the dielectric layer. The fins are formed by epitaxial growth on the silicon-germanium buffers in the trenches in the dielectric layer, followed by CMP planarization down to the dielectric layer. The dielectric layer is recessed to expose the fins. The fins may be formed concurrently or separately.

Hybrid composite cylinder head

An engine cylinder head comprising an internal metal structure formed from a metal material and an external polymer composite structure formed from a polymer composite material, wherein the external polymer composite structure at least partially surrounds the internal metal structure.

FLEXIBILIZING CAPPED PREPOLYMERS

A flexibilizing capped prepolymer can include a reaction product of reaction mixture including a polyisocyanate and an isocyanate-reactive component at an equivalent ratio of polyisocyanate equivalents to isocyanate-reactive component equivalents of from 1.4:1 to 2.1:1. The isocyanate-reactive component can include a polyol component and a branching agent component. The branching agent component can include a monoglyceride, a diglyceride, a triglyceride, or a combination thereof having a number average functionality of from 3 to 6 NCO-reactive functional groups. The reaction product is terminated with a capping agent to form the flexibilizing capped prepolymer. 1. A flexibilizing capped prepolymer , comprising:a reaction product of a polyisocyanate and an isocyanate-reactive component at an equivalent ratio of polyisocyanate equivalents to isocyanate-reactive component equivalents of from 1.4:1 to 2.1:1, wherein the isocyanate-reactive component comprises a polyol component and a branching agent component, wherein the branching agent component comprises a monoglyceride, a diglyceride, a triglyceride, or a combination thereof having a number average functionality of from 3 to 6 NCO-reactive functional groups, andwherein the reaction product is terminated with a capping agent to form the flexibilizing capped prepolymer.2. The flexibilizing capped prepolymer of claim 1 , wherein the polyisocyanate comprises an aliphatic polyisocyanate.3. The flexibilizing capped prepolymer of claim 1 , wherein the polyol component comprises a polyether polyol having a number average molecular weight of from 500 g/mol to 5000 g/mol.4. The flexibilizing capped prepolymer of claim 1 , wherein the branching agent component is combined with the polyol component at an equivalent ratio of polyol to branching agent of from 1:0.01 to 1:0.4.5. The flexibilizing capped prepolymer of claim 1 , wherein the branching agent component has a number average molecular weight of from 150 g/mol to 3000 g/ ...

Bulkhead insert for an internal combustion engine

An engine includes a cylinder block defining at least one main bearing bulkhead adjacent to a cylinder, and a crankshaft rotatably housed within the block by a main bearing. A bulkhead insert has a cap portion, and an insert portion provided within the bulkhead. The insert portion has having first and second end regions connected by first and second straps. Each strap having a flanged beam cross section. The first and second ends of the insert portion are configured to connect a main bearing cap column to a cylinder head column. Each of the first and second end regions define at least one protrusion having a surface substantially normal to engine combustion and reactive loads. The cap portion is configured to mate with the first end region at the main bearing cap column and support the main bearing.

Ptwa coating on pistons and/or cylinder heads and/or cylinder bores

A surface of a piston and/or a cylinder head and/or a cylinder bore of an internal combustion cylinder with selectively applied plasma transferred wire arc coating which acts as a thermal barrier improving fuel efficiency and reducing fuel emissions and a method of producing the plasma transferred wire arc coating on a surface of a piston and/or cylinder head and/or a cylinder bore of a compression ignition and/or spark ignition engine.

Window Method and Apparatus for Protection from Bright Light Sources

According to an embodiment, an electrically switchable mirror includes: a first electrically switchable layer of cholesteric liquid crystal material, the first electrically switchable layer having a first state in which right-handed circularly polarized light incident thereon is reflected and left-handed circularly polarized light incident thereon is transmitted and a second state wherein right-handed and left-handed circularly polarized light incident thereon are transmitted; a second electrically switchable layer of cholesteric liquid crystal material, the second electrically switchable layer having a first state in which left-handed circularly polarized light incident thereon is reflected and right-handed circularly polarized light incident thereon is transmitted and a second state wherein right-handed and left-handed circularly polarized light incident thereon are transmitted; and a first electrically switchable wave plate disposed between the first and second electrically switchable layers.

Brake impact tool

A tool for impacting a frozen brake component includes an outer guide tube, an impact bar which slides within the outer guide tube and has an impact tip, which is retracted in the outer guide tube when the impact bar is retracted, and which extends beyond the guide tube when the impact bar is extended. The impact bar and the outer guide tube are curved identically and sufficiently to allow the far end of the impact bar to impact a brake component when the tool is inserted in a wheel opening.

NOVEL POLYMER POLYOL STABILIZERS

This invention relates to novel macromers comprise the reaction product of a starter compound having a functionality of 2 to 8 and a hydroxyl number of 20 to 50, with a modified isocyanate component. This invention also relates to preformed stabilizers prepared from these macromers, and to polymer polyols prepared from these novel macromers and novel preformed stabilizers. The present invention also relates to processes for preparing these compositions, to polyurethane foams comprising these polymer polyols, and to processes for preparing these polyurethane foams. 2. The macromer of claim 1 , wherein (a) said starter compound comprises a polyether polyol having a functionality of 3 to 7 and a hydroxyl number of 25 to 45.3. The macromer of claim 1 , wherein (a) said starter compound comprises a polyether polyol having a functionality of 4 to 6 and a hydroxyl number of 30 to 40.4. The macromer of claim 1 , wherein (b)(i) said diisocyanate or polyisocyanate comprises at least one of diphenylmethane diisocyanate claim 1 , toluene diisocyanate claim 1 , isophoronediisocyanate claim 1 , hexamethylene diisocyanate claim 1 , 4 claim 1 ,4′-methylenebis(cyclohexyl isocyanate) and polyphenylmethylene polyisocyanate.5. The macromer of claim 1 , wherein said compound (b)(ii) comprises benzyhydrol claim 1 , phenylethanol claim 1 , 1 claim 1 ,1-diphenylmethylamine claim 1 , or diphenylmethyl mercaptan.7. The process of claim 6 , wherein (a) said starter compound comprises a polyether polyol having a functionality of 3 to 7 and a hydroxyl number of 25 to 45.8. The process of claim 6 , wherein (a) said starter compound comprises a polyether polyol having a functionality of 4 to 6 and a hydroxyl number of 30 to 40.9. The process of claim 6 , wherein (b)(i) said diisocyanate or polyisocyanate comprises at least one of diphenylmethane diisocyanate claim 6 , toluene diisocyanate claim 6 , isophoronediisocyanate claim 6 , hexamethylene diisocyanate claim 6 , 4 claim 6 ,4′-methylenebis( ...

System and method for monitoring tool float on an agricultural implement

In one aspect, a system for monitoring tool float on an agricultural implement may include an implement frame, a rocker arm pivotably mounted to the implement frame, and a tool coupled to the rocker arm. The system may also include a biasing element coupled between the frame and the rocker arm, with the biasing element configured to permit the tool to move relative to the implement frame. Furthermore, the system may include a rotational position sensor configured to detect a parameter indicative of a rotational position of the rocker arm relative the implement frame, with the rotational position being indicative of an additional amount of available relative movement between the tool and the implement frame.

Temperature compensated bulk acoustic wave resonator with a high coupling coefficient

The dominant frequency of a solidly mounted resonator ( 100/280/300/400 ) is substantially increased by reducing the thickness of each layer of each Bragg acoustic reflector ( 112/160/224/274 ) to have a thickness than is substantially equal to one-quarter of the wavelength of a frequency that is a higher harmonic resonant frequency of the fundamental resonant frequency of the solidly mounted resonator ( 100/280/300/400 ).

Systems and methods for securing data using multi-factor or keyed dispersal

A secure data parser is provided that may be integrated into any suitable system for securely storing and communicating data. The secure data parser parses data and then splits the data into multiple portions that are stored or communicated distinctly. Encryption of the original data, the portions of data, or both may be employed for additional security. The secure data parser may be used to protect data in motion by splitting original data into portions of data, that may be communicated using multiple communications paths. A keyed information dispersal algorithm (keyed IDA) may also be used. The key for the keyed IDA may additionally be protected by an external workgroup key, resulting in a multi-factor secret sharing scheme.

POLYOL BLENDS AND THEIR USE IN PRODUCING PUR-PIR FOAM-FORMING COMPOSITIONS

Polyol blends are disclosed that include a saccharide-initiated polyether polyol, an aromatic polyester polyol, and a polyalkylene polyamine-initiated polyether polyol. Also disclosed are foam-forming compositions containing such polyol blends, rigid foams made using such polyurethane foam-forming compositions, and methods for producing such foams, including use of such foams as panel insulation. 1. A polyol blend comprising:(a) a saccharide-initiated polyether polyol having an OH number of from 200 to 600 mg KOH/g and a functionality of 4 to 6;(b) an aromatic polyester polyol having an OH number of 150 to 410 mg KOH/g and a functionality of 1.5 to 3; and(c) a polyalkylene polyamine-initiated polyether polyol having a functionality of 3 to 8 and an OH number of at least 150 mg KOH/g.2. The polyol blend of claim 1 , wherein the saccharide-initiated polyether polyol is present in an amount of 10 to 45% by weight claim 1 , based on the total weight of the polyol blend.3. The polyol blend of claim 2 , wherein the aromatic polyester polyol is present in an amount of 50 to 85% by weight claim 2 , based upon the total weight of the polyol blend.4. The polyol blend of claim 3 , wherein the aromatic polyester polyol and the saccharide-initiated polyether polyol are present in the polyol blend in a weight ratio of 2:1 to 8:1.6. The polyol blend of claim 5 , wherein the polyalkylene polyamine comprises triethylenetetramine.7. The polyol blend of claim of claim 5 , wherein the polyalkylene polyamine-initiated polyether polyol has an OH number of 150 to 400 mg KOH/g and a functionality of 3.5 to 7.5.8. The polyol blend of claim 4 , wherein the polyalkylene polyamine-initiated polyether polyol is present in an amount of 5 to 40% claim 4 , based upon the total weight of the polyol blend.9. The polyol blend of claim 8 , wherein the aromatic polyester polyol and the polyalkylene polyamine-initiated polyether polyol are present in the polyol blend in a weight ratio of 2:1 to 8:1 and ...

POLYOL ACID NEUTRALIZATION FOR LOW TEMPERATURE URETDIONE CURING

The present invention provides a reaction mixture comprising a polyuretdione resin, a neutralized polyol, a tertiary amine catalyst, and optionally, an additive package selected from the group consisting of flow control additives, wetting agents, and solvents. The present invention also provides methods of making allophanates which are particularly applicable in or as coatings, adhesives, castings, composites, and sealants with good performance. 1. A reaction mixture comprising:a polyuretdione resin;a neutralized polyol; anda tertiary amine catalyst; andoptionally,an additive package selected from the group consisting of flow control additives, wetting agents, and solvents.2. The reaction mixture according to claim 1 , wherein the polyuretdione resin comprises the reaction product of catalytic dimerization of an isocyanate.3. The reaction mixture according to claim 2 , wherein the isocyanate is selected from the group consisting of 1 claim 2 ,4-tetramethylene diisocyanate claim 2 , 1 claim 2 ,6-hexamethylene diisocyanate (HDI) claim 2 , 2 claim 2 ,2 claim 2 ,4-trimethyl-1 claim 2 ,6-hexamethylene diisocyanate claim 2 , 1 claim 2 ,12-dodecamethylene diisocyanate claim 2 , cyclohexane-1 claim 2 ,3- and 1 claim 2 ,4-diisocyanate claim 2 , 1-isocyanato-2-isocyanato-methyl cyclopentane claim 2 , 1-isocyanato-3-isocyanatomethyl-3 claim 2 ,5 claim 2 ,5-trimethyl cyclohexane (isophorone diisocyanate or IPDI) claim 2 , bis-(4-isocyanatocyclohexyl)methane claim 2 , 1 claim 2 ,3- and 1 claim 2 ,4-bis(isocyanatomethyl)-cyclohexane claim 2 , bis-(4-isocyanato-3-methyl-cyclohexyl)-methane claim 2 , α claim 2 ,α claim 2 ,α′ claim 2 ,α′-tetramethyl-1 claim 2 ,3- and 1 claim 2 ,4-xylene diisocyanate claim 2 , 1-isocyanato-1-methyl-4(3)-isocyanato-methyl cyclohexane claim 2 , and 2 claim 2 ,4- and 2 claim 2 ,6-hexahydrotoluene diisocyanate claim 2 , toluene diisocyanate (TDI) claim 2 , diphenylmethane diisocyanate (MDI) claim 2 , pentane diisocyanate (PDI)—bio-based claim 2 , and ...

REACTION PRODUCTS CONTAINING HYDROXYALKYLTEREPHTHALATES AND METHODS OF MAKING AND USING SAME

The presently disclosed and/or claimed inventive concept(s) relates generally to oligomeric reaction products formed by the depolymerization of polyethylene terephthalate polymers and methods thereof. More specifically, the presently disclosed and/or claimed inventive concept(s) relates to oligomeric reaction products formed by the depolymerization of polyethylene terephthalate polymer obtained from, for example but not by way of limitation, waste products, such as beverage containers made from polyethylene terephthalate (PET). The oligomeric reaction products can, in one embodiment, be used as a starting material for polyurethanes. The presently disclosed and/or claimed inventive concept(s) also relates to processes for producing oligomeric reaction products from the depolymerization of polyethylene terephthalate. More particularly, the presently disclosed and/or claimed inventive concept(s) relates to a process of producing oligomeric reaction products of polyethylene terephthalate capable of controlling the removal of byproducts during the reaction. The presently disclosed and/or claimed inventive concept(s) also relates to ultraviolet curable urethane acrylate and polyethylene terephthalate compositions and methods of making and uses thereof. 150-. (canceled)51. A radiation-curable composition comprising:(i) at least one hydroxy-functional polyethylene terephthalate oligomer; and(ii) an ethylenically unsaturated photopolymerizable compound.52. A radiation-curable composition comprising:(i) a polyurethane resin comprising a reaction product formed by a reaction of a polyisocyanate and at least one hydroxy-functional polyethylene terephthalate oligomer; and(ii) an ethylenically unsaturated photopolymerizable compound.53. The composition of wherein the polyurethane resin comprises a reaction product of the polyisocyanate claim 52 , the polyethylene terephthalate oligomer claim 52 , and at least one water solubilizing monomer.54. The composition of further ...

POLYURETHANE COATING COMPOSITIONS AND THEIR USE AS GEL COATS

Polyurethane coating compositions are disclosed that include an isocyanate-reactive component that includes a polycyclic polyether polyol that is the reaction product of a reaction mixture that includes a polycyclic polyol starter, and an alkylene oxide, as well as an isocyanate-functional component that includes a non-aromatic polyisocyanate. The polyurethane coating compositions may be particularly useful as a gel coat in the manufacture of glass fiber reinforced plastics.

FLEXIBLE FOAM USING POLYMER POLYOLS PRODUCED VIA DMC CATALYZED POLYOLS

This invention relates to improved flexible foams prepared from polymer polyols and to a process for preparing these improved flexible foams. 1. A process for producing a flexible polyurethane foam , comprising reacting(I) at least one diisocyanate or polyisocyanate component,with (A) at least polyether polyol having a functionality of from about 2 to about 6 and a molecular weight of from about 700 to about 14,000;', (1) at least one base polyol containing active hydrogen atoms having a molecular weight of less than about 14,000 and a total ethylene oxide content up to about 40% by weight, said base polyol being formed in the presence of a DMC catalyst,', '(2) at least one unsaturated monomer,', 'and,', '(3) a preformed stabilizer,', 'in the presence of;', '(4) at least one free radical initiator that comprises a peroxide,', 'and optionally', '(5) a chain transfer agent;, '(B) at least one polymer polyol having a solids content of greater than about 20% by weight, a total ethylene oxide content of up to about 25% by weight, having a viscosity at 25° C. of less than about 15,000 mPa.s, and comprising a reaction product of'}, 'and', '(C) one or more chain extenders and/or crosslinking agents having a functionality of from about 2 to about 3, and a molecular weight of from about 300 or less;, '(II) an isocyanate-reactive component comprising'}in the presence of(III) one or more blowing agents,and, optionally,(IV) one or more additives and/or auxiliary agents;at an Isocyanate Index of from about 90 to about 120.2. The process of claim 1 , wherein (I) said diisocyanate component comprises at least one of toluene diisocyanate claim 1 , diphenylmethane diisocyanate claim 1 , and polymethylene polyphenylisocyanate.3. The process of claim 1 , wherein (II) said isocyanate-reactive component comprises:(A) at least one polyether polyol having a functionality of at from about 3 to about 5, and a molecular weight of about 1000 to about 12,000;and(B) at least one polymer polyol ...

Systems and methods for managing cryptographic keys

A common interface for managing cryptographic keys is provided. A request to manage a cryptographic key may be received in a first interface format, translated to a common interface format, and then executed remotely from the first interface. Return arguments may then be translated from the common interface format to a format compatible with the first interface and communicated securely to the first interface. The cryptographic keys may be used in connection with a secure data parser that secures data by randomly distributing data within a data set into two or more shares.

Composite cylinder block for an engine

A cylinder block for an engine includes a first composite portion having a first surface adjacent to a first recess, a second composite portion having a second surface adjacent to a second recess, and a cylinder liner received by the first and second recesses and positioned between the first and second portions. The first surface is adapted to mate with the second surface along a plane extending through the cylinder liner.

Novel polymer polyol compositions, a process for preparing these novel polymer polyol compositions, flexible foams prepared from these novel polymer polyols and a process for the preparation of these flexible foams

This invention relates to novel polymer polyols, to a process for preparing these novel polymer polyols, to flexible polyurethane foams comprising these novel polymer polyols, and to a process for the production of these flexible polyurethane foams. These novel polymer polyols provide unexpected improvements in foams prepared therefrom.

Method and system for reduction of contamination in needle guides

A system and method for reducing the risk of contamination of interior regions of a needle guide which is disposed on an endocavity transducer, which system includes an elastic membrane forming a pocket which covers a needle exit hole in the needle guide. The pocket is disposed on a sheath which is both; disposed around the endocavity transducer and between the endocavity transducer and the needle guide.

POLYMER POLYOLS COMPRISING AMINE BASED POLYETHER POLYOLS AND A PROCESS FOR PREPARING THESE POLYMER POLYOLS

This invention relates to polymer polyols which comprise one or more base polyols, at least one preformed stabilizer, one or more ethylenically unsaturated monomers, and, in the presence of at least one free radical polymerization catalyst, and optionally, one or more polymer control agents. The base polyol of these polymer polyols comprises one or more amine initiated polyols. The present invention also relates to processes for preparing these polymer polyols, to foams prepared from these polymer polyols, and to processes for producing foams from these polymer polyols. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. (canceled)14. (canceled)15. (canceled)16. (canceled)17. (canceled)18. (canceled)19. A polyurethane foam comprising the reaction product of:(1) a polyisocyanate component,with [ [ (1) one or more amine initiated polyols wherein the amine initiator is free of tertiary amine groups and said amine initiated polyols have an equivalent weight of less than 500,', 'and', '(2) one or more hydroxyl initiated polyols having a functionality of from about 2 to about 6 and a hydroxyl number of from about 10 to about 1000, wherein said hydroxyl initiated polyols are selected from the group consisting of polyether polyols, polyester polyols, polyetherester polyols and mixtures thereof;, '(I) a blend comprising'}, 'or', '(II) one or more amine initiated polyols wherein the amine initiator comprises an alkanolamine and is free of tertiary amine groups, and said amine initiated polyols have an equivalent weight of less than 500;, '(a) one or more base polyols comprising at least one of'}, '(b) at least one preformed stabilizer further comprising a polymer control agent;', 'and', '(c) one or more ethylenically unsaturated monomers; combined in the presence of', '(d) at least one free radical polymerization catalyst; and in the absence of', '(e) additional ...

Colorimetric Detection of Actinides

A method for rapid detection of actinides including the steps of having a support including a colorimetric complexation, placing the support in communication with a sample, and receiving a visual indicator from the colorimetric complexation. The sample having an unknown concentration of at least one actinide within it. The colorimetric complexation is configured to activate when contacted by a threshold concentration of an actinide.

Optical element having an integral surface diffuser

A monolithic element has a substrate body and at least one macro-optical characteristic integral in a first portion of the optical element. A plurality of surface micro-structures are integral in a portion of the optical element. The micro-structures are designed to homogenize light passing through the optical element to produce a predetermined pattern of smoothly varying, non-discontinuous light exiting the optical element. The light exiting the optical element is therefore altered according to both the macro-optical characteristic of the optical element as well as the homogenizing characteristics of the micro-structures.

Fuzzy logic control of an RF power amplifier for automatic self-tuning

Fuzzy logic is utilized to control an RF amplifier and associated tuner for continuous self-optimization and automatic load matching to at least double the battery life of a battery-powered transmitter.

Filtration materials using fiber blends that contain strategically shaped fibers and/or charge control agents

A filtration material comprising a blend of polypropylene and acrylic fibers of round, flat, dog bone, oval or kidney bean shape in any size from 0.08 to 3.3 Dtex. A preferred blend contains about 50 weight percent polypropylene fibers and about 50 weight percent acrylic fibers. The fibers can be blended ranging from 90:10 to 10:90 polypropylene to acrylic. The shape contains 25 weight percent round, flat, oval, dog bone and kidney bean shapes. The fiber blend contains 25 weight percent of at least one size between 0.08 and 3.3 Dtex. Electret fibers incorporated within these blends have 0.02 to 33 weight percent of a charge control agent. These fibers can be used in producing electret material by corona or triboelectric charging methods.

Allophanate-modified stabilizers and the polymer polyols prepared from these stabilizers

This invention relates to novel ethylenically unsaturated macromers, preformed stabilizers prepared from these novel macromers, polymer polyols prepared from either the novel ethylenically unsaturated macromers or the preformed stabilizers, and to processes for the preparation of these compositions.

Polymeric adhesive composition for polyvinylidene chloride interpolymers

The present invention is directed to an adhesive composition suitable for coextrusions with polyvinylidene chloride interpolymers and to a multilayer film structure made with the composition. The novel composition comprises less than or equal to 22 weight percent of at least one polar adhesive component polymer and greater than or equal to 78 weight percent of at least one homogeneously branched ethylene polymer. The preferred homogeneously branched ethylene polymer is a substantially linear ethylene polymer. The composition exhibits surprising, even synergistic adhesiveness to PVdC and is thought to be useful in hot-fill and cook-in applications.

High temperature epoxy resin compositions, additives and methods

Improved high temperature epoxy resin compositions, additives and methods are provided. A hardenable epoxy resin composition of the present invention is comprised of an epoxy resin, an aromatic diluent, a hardening agent and a hardening retarder for delaying the hardening of the epoxy composition at high temperatures comprised of a liquid which is soluble in the epoxy resin composition having a halide salt dissolved therein.

Use of Micro-Electro-Mechanical Systems (MEMS) in Well Treatments

A method of servicing a wellbore, comprising placing a plurality of Micro-Electro-Mechanical System (MEMS) sensors in a wellbore composition, placing the wellbore composition in the wellbore, and obtaining data from the MEMS sensors using a plurality of data interrogation units spaced along a length of the wellbore. A method of servicing a wellbore, comprising placing a plurality of Micro-Electro-Mechanical System (MEMS) sensors in a wellbore composition, placing the wellbore composition in the wellbore, forming a network comprising the MEMS sensors, and transferring data obtained by the MEMS sensors from an interior of the wellbore to an exterior of the wellbore via the network.

Use of micro-electro-mechanical systems (MEMS) in well treatments

A method of servicing a wellbore, comprising placing at least one piece of equipment in the wellbore comprising micro-electro-mechanical system (MEMS) sensors, wherein the MEMS sensors are disposed in one or more composite or resin portions of the equipment, and gathering wellbore data from the MEMS sensors. A method of servicing a wellbore, comprising placing at least one piece of equipment in the wellbore comprising a micro-electro-mechanical system (MEMS) sensor data interrogation unit, wherein the data interrogation unit is disposed in one or more composite or resin portions of the equipment, and gathering wellbore data from MEMS sensors located in the wellbore via the data interrogation unit.

Use of micro-electro-mechanical systems (MEMS) in well treatments

A method of servicing a wellbore, comprising placing a wellbore composition comprising a plurality of Micro-Electro-Mechanical System (MEMS) sensors in the wellbore, placing a plurality of acoustic sensors in the wellbore, obtaining data from the MEMS sensors and data from the acoustic sensors using a plurality of data interrogation units spaced along a length of the wellbore, and transmitting the data obtained from the MEMS sensors and the acoustic sensors from an interior of the wellbore to an exterior of the wellbore. A method of servicing a wellbore, comprising placing a wellbore composition comprising a plurality of Micro-Electro-Mechanical System (MEMS) sensors in the wellbore, and obtaining data from the MEMS sensors using a plurality of data interrogation units spaced along a length of the wellbore, wherein one or more of the data interrogation units is powered by a turbo generator or a thermoelectric generator located in the wellbore.

Use of micro-electro-mechanical systems (MEMS) in well treatments

A method of servicing a wellbore, comprising placing into a wellbore a first wellbore composition comprising a plurality of Micro-Electro-Mechanical System (MEMS) sensors having a first identifier, and determining positions in the wellbore of the MEMS sensors having the first identifiers. A method of servicing a wellbore, comprising placing into a wellbore a first wellbore composition comprising a plurality of Micro-Electro-Mechanical System (MEMS) sensors having a first identifier, placing into the wellbore a second wellbore composition comprising a plurality of MEMS sensors having first identifier, and determining positions in the wellbore of the MEMS sensors having the first identifier, wherein the MEMS sensors of the first wellbore composition are added to a portion of the first wellbore composition added to the wellbore prior to a remainder of the first wellbore composition, and the MEMS sensors of the second wellbore composition are added to a portion of the second wellbore composition added to the wellbore prior to a remainder of the second wellbore composition.

Use of micro-electro-mechanical systems (MEMS) in well treatments

A method of servicing a wellbore, comprising placing a plurality of Micro-Electro-Mechanical System (MEMS) sensors in a wellbore composition, pumping the wellbore composition into the wellbore at a flow rate, determining velocities of the MEMS sensors along a length of the wellbore, and determining an approximate cross-sectional area profile of the wellbore along the length of the wellbore from at least the velocities of the MEMS sensors and the fluid flow rate. A method of servicing a wellbore, comprising placing a plurality of Micro-Electro-Mechanical System (MEMS) sensors in a wellbore composition, pumping the wellbore composition into the wellbore, determining positions of the MEMS sensors relative to one or more known positions along a length of the wellbore, and determining an approximate cross-sectional area profile of the wellbore along the length of the wellbore from at least the determined positions of the MEMS sensors.

System and method for bicycle riding simulation

A system for simulating bicycle riding which incorporates a conventionally-appearing bicycle physically maneuverable by a system user. Front and rear bicycle wheels are provided solely for visual authenticity. The simulating system provides electrical communication between mechanical maneuvering of the bicycle and a video display to visually reflect changes in speed and bicycle position on a variable-terrain track in response to pedaling, braking and steering changes by the user. Specifically, the system permits simultaneous lateral displacement and leaning of the bicycle away from the vertical plane to simulate travel about a curve. The system also permits rotation in a vertical plane about a pivot point proximate to the rear bicycle tire to simulate "wheelie" motion. These changes are monitored by sensors which transmit information to a computer which, in turn, correspondingly adjusts the position of an animated bicycle on the track using computer animation made possible by a unique bicycle model program. The computer considers the influence of the forces of nature on the bicycle and user. In addition, a computer-controlled motor simulates changing conditions of the track terrain, including downhill coasting by applying power assistance to bicyclist pedaling action. Finally, an audio system and a variable-speed air blower are provided, both interfaced with the computer to enhance riding simulation.

Secure data parser method and system

The present invention provides a method and system for securing sensitive data from unauthorized access or use. The method and system of the present invention is useful in a wide variety of settings, including commercial settings generally available to the public which may be extremely large or small with respect to the number of users. The method and system of the present invention is also useful in a more private setting, such as with a corporation or governmental agency, as well as between corporation, governmental agencies or any other entity.

Accelerator system for use with secure data storage

Data processing and an accelerator system therefore are described. An embodiment relates generally to a data processing system. In such an embodiment, a bus and an accelerator are coupled to one another. The accelerator has an application function block. The application function block is to process data to provide processed data to storage. A network interface is coupled to obtain the processed data from the storage for transmission.

Systems and methods for secure data sharing

Systems and methods are provided for creating and using a sharable file-level key to secure data files. The sharable file-level key is generated based on a workgroup key associated with the data file, as well as unique information associated with the data file. The sharable file-level key may be used to encrypt and split data using a Secure Parser. Systems and methods are also provided for sharing data without replicating the data on the machine of the end user. Data is encrypted and split across an external/consumer network and an enterprise/producer network. Access to the data is provided using a computing image generated by a server in the enterprise/producer network and then distributed to end users of the external/consumer network. This computing image may include preloaded files that provide pointers to the data that was encrypted and split. No access or replication of the data on the enterprise/producer network is needed in order for a user of the external/consumer network to access the data.

Intravascular drug delivery dilatation catheter

An intravascular catheter designed to apply a liquid medicament or other substance to a stenotic lesion as the blood vessel is undergoing dilatation to facilitate the restoration and long-term maintenance of patency to the blood vessel. It comprises three concentrically arranged flexible plastic tubes and a pair of concentrically arranged expander members located at the distal end of the tubes. The space between the outer wall of the inner tube and the inner wall of the intermediate tube is in fluid communication with the interior of the first expander member while the space between the outer wall of the intermediate tube and the inner wall of the outer tube is in fluid communication with the interior of the second expander member. A plurality of minute holes are formed through the second expander member such that when the liquid medicament is introduced into the lumen of the outer tube while an inflation fluid is introduced into the lumen of the intermediate tube, both expander members inflate with the drug or other substance being ejected out through the tiny pores of the outermost expander member while continued inflation of the inner expander member provides the necessary pressure for dilatation of the lesion.

Trypanosoma cruzi proteome compositions and methods

Molecular targets are identified in T. cruzi suitable for use in diagnosis of Chagas disease, drug development, and vaccines, including live vaccines.

Active polymer polyols and a process for their production

Polymer polyols having a solids content of greater than 40 wt. %, a total ethylene oxide content of up to 25 wt. %, and a viscosity at 25° C. of less than 15,000 centistokes are produced by reacting (1) a base polyol having active hydrogen atoms with an ethylene oxide content of from 15 to 40 wt. % that has been formed in the presence of a double metal cyanide (DMC) catalyst, (2) one or more unsaturated monomers, (3) at least one radical initiator, optionally (4) a preformed stabilizer and optionally (5) a chain transfer agent. These polymer polyols (PMPOs) are useful in the preparation of polyurethane foams and elastomers.

Layer transfer of silicon onto III-nitride material for heterogenous integration

An integrated silicon and III-N semiconductor device may be formed by growing III-N semiconductor material on a first silicon substrate having a first orientation. A second silicon substrate with a second, different, orientation has a release layer between a silicon device film and a carrier wafer. The silicon device film is attached to the III-N semiconductor material while the silicon device film is connected to the carrier wafer through the release layer. The carrier wafer is subsequently removed from the silicon device film. A first plurality of components is formed in and/or on the silicon device film. A second plurality of components is formed in and/or on III-N semiconductor material in the exposed region. In an alternate process, a dielectric interlayer may be disposed between the silicon device film and the III-N semiconductor material in the integrated silicon and III-N semiconductor device.

Integrated silicon and iii-n semiconductor device

Preblend and expansion of polymeric microspheres

Method and apparatus for data input

A method and apparatus for providing accelerated X and Y axis position determination of a probe relative to a touchpad surface by enabling determination of the X and Y axis coordinates independent of each other. The apparatus of the present invention enables simplification of the electronics of the touchpad because fewer sense lines are required to achieve position resolution which is finer than the electrode pitch. Position determination is further accelerated because fewer position measurements are then required to compensate for such problems as probe symmetry duplication.

Methacrylates as stabilizers for polymer polyols

This invention relates to ethylenically unsaturated macromers which contain reactive unsaturation, and to a process for preparing these ethylenicallly unsaturated macromers which contain reactive unsaturation. The process of preparing these ethylenically unsaturated macromers comprises reacting a monofunctional compound which corresponds to a specific formula with at least one alkylene oxide, in the presence of at least one alkoxylation catalyst. The ethylenically unsaturated macromers correspond to the formula set forth herein. This invention also relates to preformed stabilizers comprising ethylenically unsaturated macromers, to a process for preparing these preformed stabilizers, to polymer polyols comprising these preformed stabilizers, and to a process of preparing these polymer polyols which comprise these preformed stabilizers. Polymer polyols comprising ethylenically unsaturated macromers and a process for their preparation are also described.

Low viscosity polymer polyols

The present invention relates to low viscosity polymer polyols and to a process for the preparation of these low viscosity polymer polyols. These polymer polyols comprise the free-radical polymerization product of (A) a base polyol, (B) a pre-formed stabilizer, and (C) at least one ethylenically unsaturated monomer, in the presence of (D) at least one free-radical polymerization initiator, and (E) at least one polymer control agent. The total amount of polymer control agent present in the polymer polyols of the present invention ranges from greater than about 5.0% up to about 20% by weight, based on 100% by weight of the polymer polyol.

Allophanate-modified stabilizers and the polymer polyols prepared from these stabilizers

This invention relates to novel ethylenically unsaturated macromers, preformed stabilizers prepared from these novel macromers, polymer polyols prepared from either the novel ethylenically unsaturated macromers or the preformed stabilizers, and to processes for the preparation of these compositions.

Polymer polyols comprising a natural oil base polyol, polyurethane foams comprising these polymer polyols and processes for their preparation

This invention relates to polymer polyols comprising the free-radical polymerization product of a base polyol, at least one ethylenically unsaturated monomer, and, optionally, a preformed stabilizer, in the presence of at least one free-radical polymerization initiator and at least one chain transfer agent, in which the base polyol is a natural oil. A process for preparing these polymer polyols is also described. The present invention also relates to a polyurethane foam prepared from these polymer polyols and to a process for the preparation of these polyurethane foams.

Polymer polyol quality

This invention relates to a process for preparing a stable low viscosity polymer polyol having a solids content of at least about 30% by weight. This process comprise free-radically polymerizing one or more base polyols, one or more pre-formed stabilizers, and one or more ethylenically unsaturated monomers in the presence of one or more free-radical polymerization initiators, and one or more polymer control agents; in which the process is restarted after being stopped by (I) restarting the feed of base polyol and the initiator; (II) continuing the base polyol and initiator feed until the total feed amounts to at least 5% of the total reactor volume; and (III) restarting the feed of the ethylenically unsaturated monomers in which the ratio of monomers to total feed is ramped up to its final value over a period of not less than 25% of the reactor residence time. This process is particularly suitable for restarting the process of production after any planned or unplanned reactor shutdown.

Polymer polyol stabilizers

This invention relates to novel macromers comprise the reaction product of a starter compound having a functionality of 2 to 8 and a hydroxyl number of 20 to 50, with a modified isocyanate component. This invention also relates to preformed stabilizers prepared from these macromers, and to polymer polyols prepared from these novel macromers and novel preformed stabilizers. The present invention also relates to processes for preparing these compositions, to polyurethane foams comprising these polymer polyols, and to processes for preparing these polyurethane foams.

Liquid 1,3-phenylene diisocyanate, 1,1'-biphenyl diisocyanate and 1,1'-oxy-bis-(isocyanato-benzene)

Allophanate-modified 1,3-phenylene diisocyanates or 1,1-biphenyl diisocyanates or 1,1'-oxy-bis-(isocyanato benzenes) which are storage stable liquid at 25° C. are made by reacting the diisocyanate and a mono-alcohol to form an isocyanate containing urethane groups. The urethane groups in the diisocyanate are then converted to allophanate groups. The resultant product which has an isocyanate group content of from about 10 to about 40% may be further reacted with isocyanate-reactive compounds to produce an allophanate-modified diisocyanate prepolymer containing urethane or urea groups having an isocyanate group content of from about 5 to about 40.0%. The liquid, storage-stable, allophanate-modified diisocyanates produced by these processes are particularly useful in the production of elastomers and flexible foams.

Guidewire exchange catheter

A catheter for facilitating the exchange of guidewires during the course of a transluminal angioplasty or related procedure which comprises an elongated, flexible, tubular member having at least one lumen running the full length thereof from its proximal end to its distal end and with at least three apertures or ports extending through the wall thereof at longitudinally spaced locations near the distal end of the tubular member. These ports communicate with the lumen of the tubular member and a longitudinal slit is also provided through the wall of the tubular member connecting the most proximal port to the next proximal port. The exchanger catheter may also include a proximal hub connected to the proximal end of the elongated plastic tube.

Polymer polyols comprising amine based polyether polyols and a process for preparing these polymer polyols

This invention relates to polymer polyols which comprise one or more base polyols, at least one preformed stabilizer, one or more ethylenically unsaturated monomers, and, in the presence of at least one free radical polymerization catalyst, and optionally, one or more polymer control agents. The base polyol of these polymer polyols comprises one or more amine initiated polyols. The present invention also relates to processes for preparing these polymer polyols, to foams prepared from these polymer polyols, and to processes for producing foams from these polymer polyols.

Amine based polymer polyol stabilizers

This invention relates to novel macromers prepared from amine based polyols, preformed stabilizers prepared from these macromers, and to polymer polyols prepared from the preformed stabilizers. The present invention also relates to processes for preparing these compositions.

Dithiocarbonate containing polyols as polymer polyol stabilizers

This invention relates to novel macromers containing dithiocarbonate (or xanthate) groups, novel preformed stabilizers comprising macromers, and novel polymer polyols comprising the novel macromers and/or novel preformed stabilizers. This invention also relates to processes for the preparation of these materials. Other aspects of this invention include foams comprising the novel polymer polyols and a process for preparing foam comprising the novel polymer polyols.

Fiber tip atherectomy catheter

A catheter assembly (10) especially designed for the performance of atherectomy procedures which includes an elongated flexible plastic tube (12) which can be routed through the vascular system to the location of the atheroma to be removed and a working catheter (16) insertable through the guide catheter (12) in the form of an elongated flexible plastic tube (16) having a series of fibers (23) integrally formed with or otherwise attached to the distal end portion of the working catheter (16) and normally laying flat against the wall of the catheter (16). The proximal end of the working catheter (16) is adapted for connection to a high speed motor whereby the working catheter (16) can be rotated relative to the surrounding guide catheter (12). As the distal end portion of the working catheter (16) is advanced distally beyond the end of the guide catheter (12), centrifugal force acts upon the fibers (23) to cause them to extend radially outward from the core of the working catheter (16) and when advanced against an atheroma, flail the lesion, reducing it into small particles which can be aspirated out the proximal end of the catheter assembly (10).

Methacrylates as stabilizers for polymer polyols

This invention relates to ethylenically unsaturated macromers which contain reactive unsaturation, and to a process for preparing these ethylenicallly unsaturated macromers which contain reactive unsaturation. The process of preparing these ethylenically unsaturated macromers comprises reacting a monofunctional compound which corresponds to a specific formula with at least one alkylene oxide, in the presence of at least one alkoxylation catalyst. The ethylenically unsaturated macromers correspond to the formula set forth herein. This invention also relates to preformed stabilizers comprising ethylenically unsaturated macromers, to a process for preparing these preformed stabilizers, to polymer polyols comprising these preformed stabilizers, and to a process of preparing these polymer polyols which comprise these preformed stabilizers. Polymer polyols comprising ethylenically unsaturated macromers and a process for their preparation are also described.

Improved polymeric mdi color

A process for the production of polymethylene polyphenyl polyisocyanates is disclosed. The process comprises phosgenating the corresponding polyamines in solution in an inert organic solvent, removing excess phosgene, and stripping the solvent, the improvement wherein at least 0.00015 percent by weight of hydrazine or hydrazine derivative per 100 percent by weight of polyamine are added to the polyamines at any time prior to the stripping step.

Systems and methods for securing data in motion

Two approaches are provided for distributing trust among a set of certificate authorities. Both approaches are equally secure. In each approach, a secure data parser is integrated with any suitable encryption technology. Each approach may be used to secure data in motion. One approach provides methods and systems in which the secure data parser is used to distribute trust in a set of certificate authorities during initial negotiation (e.g., the key establishment phase) of a connection between two devices. Another approach of the present invention provides methods and systems in which the secure data parser is used to disperse packets of data into shares. A set of tunnels is established within a communication channel using a set of certificate authorities, keys developed during the establishment of the tunnels are used to encrypt shares of data for each of the tunnels, and the shares of data are transmitted through each of the tunnels. Accordingly, trust is distributed among a set of certificate authorities in the structure of the communication channel itself.

Low viscosity polymer polyols characterized by a high hydroxyl number

The present invention relates to novel polymer polyols which have low viscosities and high hydroxyl numbers, and to a process for the preparation of these novel polymer polyols. These polymer polyols have hydroxyl numbers of >= 20, solids contents of about 30 to about 65% by weight and a viscosity that is less than or equal to: be [2.7]. These comprise the reaction product of a base polyol, a preformed stabilizer and at least one ethylenically unsaturated monomer, in the presence of a free-radical polymerization initiator and at least one polymer control agent. The base polyol has a hydroxyl number of 60 to 1900, a functionality of 1 to 10, and an equivalent weight of 30 to 900.

Lubrication of a hermetic carbon dioxide compressor

A hermetic compressor comprises a housing having an oil containing sump, a motor and a compression mechanism in the housing, a bearing in a stationary frame and a drive shaft supported by the bearing. The drive shaft operatively couples the motor and the compression mechanism and a longitudinal oil supply passageway extends through the drive shaft in fluid communication with the sump. A chamber, located at a first end of the drive shaft, is in fluid communication with the oil supply passageway. Oil from the sump is provided to the chamber through the oil supply passageway. An oil return passageway extends from the chamber to an annulus formed between the bearing and the drive shaft and extends at least partially through the stationary frame. Lubricating oil is provided to the annulus through the oil return passageway so that the bearing and drive shaft interface is lubricated.

Dip-dyable polycarbonate process

A process for tinting of articles molded from a polymeric resin is disclosed. Preferably, the article is molded from polycarbonate and the process entails immersing the molded article in a dye bath that contains water, dye, a carrier and an optional surfactant. The carrier is a compound conforming to (i) R1 [-O-(CH2)n ]m OR2 wherein R1 and R2 independently denote H or C1-18 alkyl, benzyl, benzoyl or phenyl radical which may be substituted in the aromatic ring by alkyl and or halogen, preferably R1=butyl, R2=H, n is 2 or 3 and m is 2 to 35. The method is especially useful in the manufacture of tinted lenses.

Fiber tip atherectomy catheter

A catheter assembly especially designed for the performance of atherectomy procedures which includes an elongated flexible plastic tube which can be routed through the vascular system to the location of the atheroma to be removed and a working catheter insertable through the guide catheter in the form of an elongated flexible plastic tube having a series of fibers integrally formed with or otherwise attached to the distal end portion of the working catheter and normally laying flat against the wall of the catheter. The proximal end of the working catheter is adapted for connection to a high speed motor whereby the working catheter can be rotated relative to the surrounding guide catheter. As the distal end portion of the working catheter is advanced distally beyond the end of the guide catheter, centrifugal force acts upon the fibers to cause them to extend radially outward from the core of the working catheter and when advanced against an atheroma, flail the lesion, reducing it into small particles which can be aspirated out the proximal end of the catheter assembly.