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...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.

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Class 528/403 - FROM HETEROCYCLIC REACTANT CONTAINING AS RING ATOMS OXYGEN, SELENIUM OR TELLURIUM, E.G., EPOXY, ETC.


Subclass of Class 528 - Synthetic resins or natural rubbers -- part of the class 520 series
Definition: Subject matter under Class 520, ... involving polymers
No. of patents: 337
Last issue date: 04/03/2012


1                  
NumberTitleIssue Date
8148028Polybenzoxazines, electrolyte membrane comprising the same, and fuel cell employing the electrolyte membrane
Crosslinked polybenzoxazines obtained by crosslinking a monofunctional first benzoxazine monomer and a multifunctional second benzoxazine monomer with a crosslinkable compound, an electrolyte membrane including the same, a method of preparing the electrolyte membran...
04/03/2012
8048981Thermally curable compositions and method
Disclosed are thermally curable compositions comprising at least one cyclic ether, an initiator selected from the group consisting of an iodonium salt, a sulfonium salt, an acylium salt, a tropylium salt, an oxonium salt, and combinations thereof, and a catalyst hav...
11/01/2011
7935782Multifunctional degradable nanoparticles with control over size and functionalities
In one aspect, the invention relates to polymers, crosslinked polymers, functionalized polymers, nanoparticles, and functionalized nanoparticles and methods of making and using same. In one aspect, the invention relates to degradable polymer and degradable nanoparti...
05/03/2011
7875698Polymeric initiators
A novel polymeric initiator is disclosed comprising a dendritic polymer core with at least one initiating functional group as an end group. The dendritic polymeric core is preferably a hyperbranched polymer. The polymeric initiators are useful in radiation curable c...
01/25/2011
7687599Poly(ether-ester) polyols and processes for their production
The invention is directed to novel poly(ether-ester)polyols, processes for their production from monocarboxylic or polycarboxylic acid esters with one or more bound polyether chain(s). This invention also relates to the production of polyurethane materials in which ...
03/30/2010
7417111Liquid crystalline epoxy resins
Liquid crystalline epoxy compounds, compositions including the compounds, and methods of using the compositions are disclosed. In one aspect, an epoxy compound may have a melting point that is less than 140° C. and may be liquid crystalline at a temperature greater...
08/26/2008
7361728Electrically conducting materials from branched end-capping intermediates
The present invention relates to a class of conducting oligomers and polymers and to a method for the preparation of the same. The conducting oligomers and polymers contain an end-capping group, which is non-electrically conductive and contains at least one branch p...
04/22/2008
7358597UV-activated dielectric layer
A dielectric layer on a semiconductor substrate is made porous by radiation with UV light. The dielectric material contains a photosensitive moiety that absorbs UV radiation and dissociates from the dielectric material. The UV-activated material then may be diffused...
04/15/2008
7354989Thioepoxy based polymerizable composition and method for production thereof
A polymerizable composition and a manufacturing method thereof are provided, in which the composition is capable of meeting requirements of overcoming decrease in production yield of a resin composed of a thioepoxy compound, the decrease being caused by variations i...
04/08/2008
7348072Light-emitting polymer and organoelectroluminescent display using the same
A spirofluorene-type of a blue light-emitting polymer including an indenofluorene repeating unit having a spiroanthracene structure, and an organic electroluminescent display using the polymer. The brightness and efficiency property of the organic electroluminescent...
03/25/2008
7323538Polymer having unique optical property and polymerizable monomer therefor
A polymer compound having a functional group containing a cyclic part with aromatic properties comprising C, H and/or C, H, X (X is a hetero atom) in the side-chain, and a number average molecular weight of 250-1,000,000. The molar optical absorption due to the cycl...
01/29/2008
7317048Variable resistance poly(3,4-ethylenedioxythiophene)/poly(styrene sulfonate) for use in electronic devices
Variable resistance PEDT/PSS buffer layers are provided for use in electroluminescent devices such as, e.g., OLEDs. In accordance with another embodiment, there are provided OLEDs comprising variable resistance PEDT/PSS buffer layers. In accordance with a further em...
01/08/2008
7291690Process for production of living radical polymers and polymers
A process for producing a living radical polymer characterized in that a vinyl monomer is polymerized with use of a living radical polymerization initiator represented by the formula (1) and a compound represented by the formula (2), and the living radical polymer o...
11/06/2007
7288609Coatings for drug delivery devices based on poly (orthoesters)
A polymer coating for implantable medical devices based on polyorthoesters and methods for fabricating the coating are disclosed. The implantable medical devices made of polyorthoesters and methods for fabricating thereof are also disclosed. ...
10/30/2007
7279534Poly(heteroaromatic) block copolymers with electrical conductivity
The present invention provides block copolymers containing at least one block of a poly(heteroaromatic) polymer and at least two blocks of a non-conjugated polymer. The chemically different blocks of the copolymer are covalently bonded to each other in an alternatin...
10/09/2007
7276569Organic tellurium compound, process for producing the same, living radical polymerization initiator, process for producing polymer with the same, and polymer
An organotellurium compound of the formula (1) is useful as a living radical polymerization initiator and makes possible precision control of molecular weights and molecular weight distributions under mild conditions
10/02/2007
7276573Method for producing monoesters and diesters of polytetrahydrofuran and of tetrahydrofuran copolymers
The present invention provides a process for preparing mono- or diesters of polytetrahydrofuran or of tetrahydrofuran copolymers by polymerizing tetrahydrofuran in the presence of at least one telogen and/or of a comonomer over an acidic catalyst, wherein the polyme...
10/02/2007
7273909Polyethylene glycol aldehydes
Polyethylene glycol aldehyde compounds are provided. Methods of making and using such compounds, as well as chemical intermediates are also provided. ...
09/25/2007
7268204Complex of a multimetal cyanide compound and methods of forming polyethercarbonate polyols
A method of forming a polyethercarbonate polyol enhances incorporation of CO2 into the polyethercarbonate polyol. The method provides a catalyst including a multimetal cyanide compound. The multimetal cyanide compound has an ordered structure defined by a...
09/11/2007
7259229Electroactive fluorene polymers having perfluoralkyl groups, process for preparing such polymers and devices made with such polymers
The present invention is generally directed to perfluoroalkylated fluorene polymers. It further relates to a process for preparing the polymers and devices that are made with the polymers. ...
08/21/2007
7238770Methods of making imide-modified polyester resins
The present invention relates to methods of making imide-modified polyester imide resins. The present invention further relates to forming these imide-modified polyester imide resins into articles, such as preforms, bottles, containers, sheets, films, fibers, and in...
07/03/2007
7223832Double-metal cyanide catalysts which can be used to prepare polyols and the processes related thereto
The present invention is directed to polyols prepared in the presence of double metal cyanide catalysts (“DMC”) which are prepared by combining i) at least one metal salt; ii) at least one metal cyanide salt; iii) at least one organic complexing ligand; iv) at l...
05/29/2007
7220820Electroactive fluorene copolymers and devices made with such polymers
The present invention is generally directed to copolymers of fluorene. It further relates to devices that are made with the copolymers. ...
05/22/2007
7208104Mixture solution for preparing a conductive polymer to produce solid electrolytic capacitors and its method
A mixture solution for preparing conducting polymers. The conducting polymer is formed from a mixture of monomer and oxidant solution. The oxidant solution has a high concentration, and also includes a five or six-member ring compound with a functional group ...
04/24/2007
7196145Heterofunctional copolymers of glycerol and polyethylene glycol, their conjugates and compositions
The present invention relates to heterofunctional copolymers of glycerol and polyethylene glycol, conjugates of these heterofunctional copolymers with bioactive agents, nanoparticles, hydrophobic polymers and/or lipids; and to compositions containing these conjugate...
03/27/2007
7192984Compositions of polyacids and polyethers and methods for their use as dermal fillers
The present invention relates to improved methods for filling the skin for cosmetic or medical purposes. Compositions comprising carboxymethyl cellulose (CMC), polyethylene oxide (PEO) and calcium ions can be made and have physical properties that depend on the amou...
03/20/2007
7175918Polyolefin compositions
The present invention relates to polyolefin compositions that incorporate an acrylic/polyether comb-branched copolymer, articles made from the compositions, such as polyolefin films and polyolefin fibers, and methods for making the compositions and the articles....
02/13/2007
7173101High toluene diisocyanate-stable blue colorants
An inventive blue colorant comprising a chromophore having at least one hydroxy group-terminated polyester chain attached, through a suitable alkylamino linking group (or groups), to the 1-position, the 4-position, or both, of an anthraquinone backbone and having at...
02/06/2007
7169858Polyfluorinated compounds useful as surfactants, foam control agents and/or rheology modifiers
Reaction products prepared by processes which comprise reacting: A) at least one compound having the general formula I: R1(X)3  (I) wherein each X group independently represents a halog...
01/30/2007
7163694Bioerodible poly(ortho esters) from dioxane-based di(ketene acetals), and block copolymers containing them
Bioerodible poly(ortho esters) useful as orthopedic implants or vehicles for the sustained delivery of pharmaceutical, cosmetic and agricultural agents from dioxane-based di(ketene acetals). Block copolymers contain these bioerodible poly(ortho esters). These block ...
01/16/2007
7160975Methacrylates 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...
01/09/2007
7157509Curable compositions
Curable compositions, such as benzoxazine-based ones, are useful in applications within the aerospace industry, such as for example as a heat curable composition for use as a matrix resin or an adhesive, and form the basis of the present invention. ...
01/02/2007
7144970Insulating-film forming material and insulating film using the same
An insulating-film forming material comprising a resin (A) that has a structure represented by formula (I): wherein Y1, Y2, Ar1 and Ar2 are the same or different; each ...
12/05/2006
7135544Living olefin polymerization processes
Processes for the living polymerization of olefin monomers with terminal carbon-carbon double bonds are disclosed. The processes employ initiators that include a metal atom and a ligand having two group 15 atoms and a group 16 atom or three group 15 atoms. The ligan...
11/14/2006
7125952(Partially) conjugated polymer process for its preparation and use in electroluminescent devices
A polymer for use in an optical device comprising one or more regions, where each region comprises (i) a first structural unit having general formula I: where m=1 or 2 and which contains at least one substituent se...
10/24/2006
7112650Method for the production of thermoplastic poly(3-hydroxyalkanoates)
A process for preparing thermoplastic poly(3-hydroxyalkanoates) with a molar mass greater than 6 000 g/mol and a melting point in the range from 70 to 170° C., by reacting an oxirane compound with carbon monoxide in the presence of a transition metal catalyst which...
09/26/2006
7112651Production of polyoxymethylene and suitable catalysts
A process is described for preparing polyoxymethylene by contacting a formaldehyde source with a catalyst of the formula I [ML1aL2b]cm+Zc·m/nn−  (I)
09/26/2006
7108920Reworkable compositions incorporating episulfide resins
This invention relates to thermosetting resin compositions useful for mounting onto a circuit board semiconductor devices, such as chip size or chip scale packages (“CSPs”), ball grid arrays (“BGAs”), land grid arrays (“LGAs”), and the like, each of whic...
09/19/2006
71056203,4-alkylenedioxy-thiophene copolymers
An aqueous dispersion of a copolymer of at least one 3,4-alkylenedioxythiophene compound with a solubility in water at 25° C. of less than 2.2 g/L with at least one 3,4-alkylenedioxythiophene compound with a solubility in water at 25° C. of at least 2.2 g/L and a ...
09/12/2006
7101942Dental materials based on metal oxide clusters
Dental material containing a cluster according to the general formula [(M1)a(M2)bOc(OH)d(OR)e(L-Sp-Z)f] (I) in which M1, M2, independently of each other, st...
09/05/2006
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