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A resilient headband in a shape for being mounted on the head of the user. The headband is equipped with a longitudinal slotted member for holding a placard.

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Class 528/390 - From organic reactant containing a -C(=S)-group


Subclass of Class 528 - Synthetic resins or natural rubbers -- part of the class 520 series
Definition: Subject matter wherein a polymer is prepared from an organic
No. of patents: 54
Last issue date: 02/23/2010


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NumberTitleIssue Date
7666978Method of preparing derivatives of polyarylene vinylene and method of preparing an electronic device including same
A technique is described for the preparation of polymers according to a process in which the starting compound of formula (I) is polymerized in the presence of a base in an organic solvent. No end chain controlling agents are required during the polymerization to ob...
02/23/2010
7511116Method of preparing derivatives of polyarylene vinylene and method of preparing an electronic device including same
A technique is described for the preparation of polymers according to a process in which the starting compound of formula (I) is polymerized in the presence of a base in an organic solvent. No end chain controlling agents are required during the polymerisation to ob...
03/31/2009
7446164Method of preparing derivatives of polyarylene vinylene and method of preparing an electronic device including same
A technique is described for the preparation of polymers according to a process in which the starting compound of formula (I) is polymerized in the presence of a base in an organic solvent. No end chain controlling agents are required during the polymerisation to ob...
11/04/2008
7396901Method for synthesis of polymers with thiol functions
The invention concerns a method for preparing polymers having at least a thiol function, comprising pyrolysis of at least a polymer having at least a function of formula (I), wherein: R1, R2, R3 and R4 are such as defined in the description
07/08/2008
7300910Lubricating oil composition
Lubricating oil compositions providing superior soot dispersing characteristics, which contain a combination of a high molecular weight dispersant and a soot dispersant comprising a linked aromatic oligomer. ...
11/27/2007
7259228Method of preparing derivatives of polyarylene vinylene and method of preparing an electronic device including same
A technique is described for the preparation of polymers according to a process in which the starting compound of formula (I) is polymerized in the presence of a base in an organic solvent. No end chain controlling agents are required during the polymerization to ob...
08/21/2007
7214762Redox-active polymer and electrode comprising the same
The present invention provides a new redox-active polymer capable of an adequate redox reaction even at low temperature and effectively usable as a high-capacity, high-energy density battery, a large-area electrochromic element, or a biochemical sensor using a micro...
05/08/2007
7115705Method of producing a polythiourethane and method of producing a graft polymer
A polythiourethane is produced by polymerizing a compound represented by formula (I) in the presence of a compound represented by formula (II) in which R1 represents a methyl g...
10/03/2006
7109276Method for free radical reduction of dithiocarbonylated or dithiophosphorylated functions borne by a polymer
The invention concerns a method for preparing a polymer, comprising a step which consists in contacting: (A) at least a living organic polymer having at its chain end a dithiocarbonylated or dithiophosphorylated function capable of being reactivated; (B) at least a ...
09/19/2006
7045241Proton conductive solid polymer electrolyte and method for producing the same
A monomer to produce polybenzimidazole is dissolved in polyphosphoric acid. For example, polysulfated phenylene sulfonic acid (acidic group-possessing polymer) is further dissolved in this solution. In this procedure, the acidic group-possessing polymer and the mono...
05/16/2006
7012119Cleaving and replacing thio control agent moieties from polymers made by living-type free radical polymerization
A method of free radical polymerization and for cleaving a thio group from the resulting polymer is provided. The method comprises forming a mixture of one or more monomers, at least one free radical source and a control agent, wherein the control agent comprises a ...
03/14/2006
7008571Optical component and sulfur-containing poly(thio)ester (co)polymer
A poly(thio)ester (co)polymer which comprises a repeating structural unit represented by the formula (1-A) as an essential structural unit: [wherein R11 is a divalent aliphatic hydrocarbon group which may con...
03/07/2006
6919409Removal of the thiocarbonylthio or thiophosphorylthio end group of polymers and further functionalization thereof
A method of free radical polymerization and for cleaving a thio group from the resulting polymer is provided. The method comprises forming a mixture of one or more monomers, at least one free radical source and a chain transfer agent, wherein the chain transfer agen...
07/19/2005
6891017Fast polymerizable/curable episulfide based composition, polymerization/curing process and optical articles resulting therefrom
The present invention relates to room temperature or thermally polymerizable/curable episulfide based compositions for making polymerized/cured episulfide based resins, and in particular episulfide based compositions which can be fastly polymerized/cured, as well as...
05/10/2005
6646029Pyrimidine derivatives as hardness stabilizers
A vulcanizable composition comprising a sulfur vulcanizable rubber, a sulfur vulcanizing agent, an accelerating agent selected from the group consisting of non-thiazole sulfenamide accelerators in an amount effective to not substantially inhibit vulcaniza...
11/11/2003
6639046Composition comprising mercapto-functional compounds
The present invention relates to a composition comprising: a compound comprising two or more olefinically unsaturated groups comprising at least on electron-withdrawing functionality linked to a carbon atom of the unsaturated bond; a compound comprising a...
10/28/2003
6465604Pyrimidine derivatives as hardness stabilizers
The invention comprises a vulcanizable composition comprising a sulfur vulcanizable rubber, a sulfur vulcanizing agent, an accelerating agent in an amount effective to accelerate vulcanization and sufficient to not substantially inhibit vulcanization, and...
10/15/2002
6124382Use of multi-block copolymers as thermo-thickeners
The invention concerns the use as thermothickeners of multi-block copolymers of general formula (I) or (II): ##STR1## wherein E designates a polyoxyalkylene sequence; A designates a water-soluble polymer sequence; X is a sulphur or oxygen atom; Y is ...
09/26/2000
6022930Process for producing polycondensable macromonomer
This invention relates to the process for the preparation of macromonomers with more than one polycondensable functional groups with equal reactvity, which comprises reacting a carboxyl or hydroxyl terminated prepolymers, with an organic compound containi...
02/08/2000
5989627Vinyl ether terminated oligomers and polymers
The specification describes processes for synthesizing vinyl ether functionalized oligomers or polymers, and methods for coating optical fibers with formulations containing these oligomers or polymers. Optical fibers coated with these formulations can be ...
11/23/1999
5959071Composition and method for producing polythioethers having pendent methyl chains
A polythioether has the formula R1 --›--R2 --S--CH(CH3)--S--!n --R2 --R1 wherein R1 denotes a thiol group, a hydroxyl group, an unsubstituted amine group, a monoalkyl-substituted amine gr...
09/28/1999
5929203Process for preparing high molecular weight poly(arylene sulfide) polymers using lithium salts
A process is provided for producing a high molecular weight poly(arylene sulfide) polymer employing at least one dihaloaromatic compound, a sulfur source, a polar organic compound, a lithium salt which is soluble in the polar organic compound, and water i...
07/27/1999
5712039Epoxy adhesives with dithiooxamide adhesion promoters
The invention provides a curable, structural epoxy adhesive composition comprising: (a) an epoxy resin; (b) a curing agent for the epoxy resin; and (c) a compound of the formula I: ##STR1## in which R1 and R2, which may be the s...
01/27/1998
5594096Polymeric dithiocarbamic acid salt compositions and methods of use
A contaminant precipitating composition and method are disclosed. The composition comprises a water soluble branched polymeric composition effective for the purpose of precipitating contaminants from an aqueous solution. The method comprises adding an amo...
01/14/1997
5565517Synthesis of organic polysulfide polymers
A process for preparing an organic polysulfide polymer, such as polyethylene trisulfide, is provided which comprises contacting a dimercaptan such as 1,2-ethanedithiol with elemental sulfur using a basic catalyst wherein the dimercaptan, elemental sulfur,...
10/15/1996
5536808Thiazole polymers and method of producing same
The preferred polymers comprise cyclic units having sulphur at the 1 position, nitrogen at the 3 position, a substituent R group carried off of a carbon at the 4 position, and a carbon at each of the 2 and 5 positions of the thiazole ring. Each of the uni...
07/16/1996
5470945Thermally reversible isocyanate-based polymers
Thermally-reversible polymer compositions are obtained by reacting compounds with isocyanate and labile-hydrogen functionality. Aromatic polyimide, aromatic polycarbonate, polyarylsulfide, aromatic polyester with liquid crystal property, and polyarylimida...
11/28/1995
5464931Oxidation of dimercaptans to organic disulfide polymers
A process for preparing an organic disulfide polymer such as polyethylene disulfide which is used in batteries comprises contacting a dimercaptan such as 1,2-ethanedithiol with elemental sulfur using a mixture of a basic compound such as NaOH and an ethox...
11/07/1995
5387667Thermally-reversible isocyanate-based polymers
Thermally-reversible polymer compositions are obtained by reacting compounds with isocyanate and labile-hydrogen functionality. High-performance characteristics are incorporated into the polymer by using aromatic polycarbonate, aromatic polyester, polyary...
02/07/1995
5280104Process for the preparation of poly(arylene sulfide) with low metal contamination and polymer produced
A process for preparing poly(arylene sulfide) with reduced metal contamination is produced by contacting a dihaloaromatic compound, a sulfur source, a polar organic compound, and an alkali metal carboxylate in a reaction vessel wherein at least the liquid...
01/18/1994
5239039Polyarylimidazolidines with phenolic hydroxyl end groups
Polyarylimidazolidines with a degree of polymerization of about one to twenty and having phenolic hydroxyl end groups and a novel three-step process for their preparation are described. In the first step of the process, an excess of hydrogen cyanide is re...
08/24/1993
5239050Process for preparing arylene sulfide polymer with addition of aqueous alkali metal carboxylate prior to termination of polymerization
A process for preparing high molecular weight arylene sulfide polymers by dehydrating an aqueous mixture of a sulfur source and a cyclic organic amide to form a dehydrated mixture, contacting the dehydrated mixture with a dihaloaromatic compound to produc...
08/24/1993
5239051Limiting the amount of water during the preparation of phenylene sulfide polymers
A method is provided for increasing reactant concentrations for the polymerization of PPS without creating a deterioration of the molecular weight of the resultant polymer by limiting the amount of by-product water present during the initial portion of th...
08/24/1993
5200499Removal of water by venting during the polymerization of phenylene sulfide polymers with sulfur source/polar organic compound molar ratio being at least 0.36/1
A method is provided for increasing reactant concentrations for the polymerization of PPS without creating a deterioration of the molecular weight of the resultant polymer by venting excessive by-product water during the polymerization reaction....
04/06/1993
5132049Substituted thiophenes, conducting polymers derived from these thiophenes, process for obtaining them and devices containing these polymers
Substituted thiophenes of the general formula: ##STR1## in which: R represents a hydrogen atom, a halogen atom or an aliphatic group containing from 1 to 4 carbon atoms, X represents a hydrogen atom or a fluorine atom, Y represents an at least partially f...
07/21/1992
5115093Process for preparing arylene sulfide polymers in the presence of functionalized olefin
An arylene sulfide polymer and a process for preparing arylene sulfide polymers by contacting a sulfur source, a cyclic organic amide and a dihaloaromatic compound to form a polymerization mixture, polymerizing the polymerization mixture and recovering th...
05/19/1992
5097010Thermally-reversible isocyanate polymers
Thermally-reversible polymer compositions are obtained by reacting compounds with isocyanate and labile-hydrogen functionality. High-performance characteristics are incorporated into the polymer by using polyimide, aromatic polycarbonate, aromatic polyest...
03/17/1992
5091501Process for preparing 2H-1-benzopyran-2-ones and polyesters containing 2H-1-benzopyran-2-one residues
This invention provides a process for producing 2H-1-benzopyran-2-ones (coumarins) from optionally-substituted o-halocinnamic acids or esters under polyester-forming conditions. When the coumarins contain appropriately reactive functional groups, and desi...
02/25/1992
5089601Chloroprene polymer
A chloroprene polymer having dithiocarbamate groups at both terminals, represented by the following formula (I): ##STR1## wherein M1 is a chloroprene monomer residue; X is a group represented by the following formula (II): ##STR2## ...
02/18/1992
5081214Process for the preparation of an aromatic polyether
A process for the preparation of an aromatic polyether by condensation of dihydric phenols with activated aromatic dihalo compounds or by self-condensation of polynuclear activated halophenols employs a mixture of sodium carbonate and sodium hydrogen carb...
01/14/1992
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