|
Match
|
Document |
Document Title |
|
|
7091307 |
Composition for optical material
The present invention relates to a composition for optical materials, comprising (a) a compound having in one molecule at least one structure represented by the following Formula 1:
wherein R 1...
|
|
|
7026439 |
Process for continuous production of polyarylene sulfide
There is disclosed a process for continuously producing a polyarylene sulfide which comprises reacting a sulfur source with a dihalogenated aromatic compound in an aprotic organic solvent,...
|
|
|
6939941 |
Preparation of polysulfide compositions
A process is provided for the manufacture of liquid polysulfide polymers. In particular, the process allows for making the liquid form of the polysulfide polymer directly and eliminates the need to...
|
|
|
6747122 |
Process for the preparation of polymeric sulfur compounds
The invention relates to a simple process for the preparation of polymeric sulfur compounds with polythiocyclopentanediyl structural elements which are used as vulcanizing agents for diene rubbers.
|
|
|
6632805 |
Methods for using water-stabilized organosilanes
A method of dyeing and treating a substrate using a water-stabilized organosilane. A method of antimicrobially treating a food article. A method of antimicrobially coating a fluid container. A...
|
|
|
6566488 |
Polyarylensulfide, polyarylensulfide resin composition, method for producing polyarylensulfide
Provided are a polyarylene sulfide having a chloroform soluble content of at most 0.5% by weight and having an inherent viscosity ηinh of from 0.05 to 0.4; a polyarylene sulfide resin composition...
|
|
|
6538102 |
Method for producing sulfur-containing polymers
The present invention relates to a process for preparing sulfur-containing polymers from at least one sulfide and from at least one aromatic dihalogen compound in at least one solvent, where a) a...
|
|
|
6310175 |
Star-shaped block copolymer and production process therefor
The present invention provides a new star-shaped block copolymer and a production process therefor, wherein the new star-shaped block copolymer has high heat resistance despite having a low...
|
|
|
6201098 |
Process for preparing sulphurous polymers
The invention concerns a process for preparing linear or branched sulphurous polymers such as polyarylene sulphides, in particular polyphenylene sulphide, from an aromatic dihalide compound and a...
|
|
|
6001934 |
Process for the preparation of a functional group-containing polyarylene sulfide resin
A simple and convenient process is provided to introduce a sufficient quantity of functional groups to a main chain or terminals of the chain of a polyarylene sulfide resin to improve properties of...
|
|
|
5898061 |
Continuous process for producing polyarylene sulfide
This invention provides a method for producing polyarylene sulfide continuously, comprising; 1) polymerization step wherein polyarylene sulfide is polymerized from a sulfur compound in the liquid...
|
|
|
5869599 |
Free radical ring opening for polymerization of cyclic oligomers containing an aromatic sulfide linkage
A polyarylene sulfide free of inorganic contaminants, especially residues of inorganic polymerization catalysts, is produced by the free radical, ring-opening polymerization of a cyclic thioether.
|
|
|
5824767 |
Poly(arylene sulfide) compositions having improved processability
A process for improving the processability of poly(arylene sulfide) in melt spinning operations by treatment with a barium-containing compound and, optionally, a lubricant is disclosed.
|
|
|
5756654 |
Process for manufacturing polyarylene sulfide
Disclosed is a process for manufacturing polyarylene sulfide comprising pre-polymerizing a dihalogeno-aromatic compound with a liquid or gaseous sulfur compound in the presence of a lithium...
|
|
|
5658487 |
Polymeric dithiocarbamate acid salt compositions and method of use
A contaminant precipitating composition and method are disclosed. The composition comprises a water soluble, branched, polydithiocarbamic acid salt effective for the purpose of precipitating...
|
|
|
5635587 |
Process for manufacturing polyarylene sulfide
A process for efficiently manufacturing high purity polyarylene sulfide. The process comprises feeding a liquid or gaseous sulfur compound (e.g. hydrogen sulfide) to a mixture comprising lithium...
|
|
|
5561215 |
Pyrrolidones for cleanup of sulfur-containing polymers
A method for removing cured sulfur-containing polymer sealants from surfaces is disclosed. The method comprises applying to the surface a sealant remover comprising at least about 50 wt. % of a...
|
|
|
5521274 |
Polysulfide-modified epoxy resins
A polysulfide-modified epoxy resin system in which, upon curing, the polysulfide rubber phase separates into discrete particles, typically 1 to 5 μm in size, to enhance physical properties such as...
|
|
|
5371111 |
Method of reprocessing cured polysulfide and/or mercaptan elastomers
The method of reprocessing cured polysulfide and polymercaptan elastomers includes reacting an 0.5 to 400 percent-by-weight portion of a polysulfide and/or polymercaptan elastomer with at least one...
|
|
|
5364928 |
Process for preparing arylene sulfide polymers
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...
|
|
|
5306805 |
Process for the preparation of polyarylene sulphides
This invention relates to a simplified process for the preparation of polyarylene sulphides with improved product quality from alkali metal sulphides and dihalogenated aromatic compounds, in which...
|
|
|
5296579 |
Arylene sulfide polymers
A process for the production of arylene sulfide polymers is provided which comprises subjecting a mixture of at least one first sulfur source, at least one second sulfur source comprised of at...
|
|
|
5260411 |
Polyimide resins
A method for the preparation of a polyimide containing reversible crosslinks comprising the step of curing a monomer having the formula ##STR1## wherein R and R' may be the same or different and...
|
|
|
5239051 |
Limiting 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...
|
|
|
5239050 |
Process 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...
|
|
|
5200499 |
Removal 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...
|
|
|
5171831 |
Producing high molecular weight poly(arylene sulfide) polymers by adding second polar solvent prior to termination of polymerization
A process for producing an easily recoverable poly(arylene sulfide) polymer having a melt flow of less than 130 g/10 min., which processes comprises: a) adding a second polar organic compound to...
|
|
|
5164095 |
Dithiocarbamate polymers
A water soluble ethylene dichloride ammonia polymer having a molecular weight of from 500 to 10,000 which contains from 5 to 50 mole % of dithiocarbamate salt groups. Also, disclosed is the use of...
|
|
|
5159056 |
Preparation of arylene sulfide polymer in the presence of titanium dioxide
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...
|
|
|
5155207 |
Arylene sulfide polymers and articles of manufacture
Films and fibers are prepared from arylene sulfide resins comprising first recurring units consisting of aromatic structures having the form: ##STR1## and second recurring units including units...
|
|
|
5144004 |
Process for preparing arylene sulfide sulfone/sulfoxide polymers
An arylene sulfide sulfone/sulfoxide polymer and a process for preparing same by contacting at least one dihaloaromatic sulfone, at least one dihaloaromatic sulfoxide, at least one organic amide,...
|
|
|
5126430 |
Process for preparing polyarylene sulfides with metal salt of hydroxycarboxylic acid
A process for preparing a polyarylene sulfide involves contacting a sulfur source with a metallic salt of an aliphatic ω-hydroxycarboxylic acid and a dihalogen aromatic compound in an organic...
|
|
|
5110901 |
Higher molecular weight arylene sulfide resin and process for its preparation
In a first embodiment, arylene sulfide resins are provided by contacting, in a polymerization mixture, during a polymerization process, reactants comprising: an alkali metal sulfide, an organic...
|
|
|
5071949 |
Process for preparation of polyphenylene-sulfide resins in the absence of specific polymerization assistants
Disclosed is a process for the preparation of polyphenylene-sulfide resins, wherein an aromatic polyhalide compound is reacted with an alkali metal sulfide, or hydrogen sulfide and an alkali metal...
|
|
|
5064936 |
Process for preparing high extrusion rate arylene sulfide polymers
A process for preparing arylene sulfide polymers by dehydrating an aqueous mixure of a sulfur source and a cyclic organic amide to form a dehydrated mixture, contacting the dehydrated mixture with...
|
|
|
5053486 |
Process for preparing poly(arylene sulfide sulfone) with controlled ratio of alkali metal carboxylate to sulfur source
A process for preparing poly(arylene sulfide sulfone) by contacting a dihaloaromatic sulfone, an organic amide, a sulfur-containing compound, water, and an alkali metal carboxylate, wherein the...
|
|
|
5013822 |
Process for preparing poly(arylene sulfide sulfone) with in-situ preparation of alkali metal carboxylate
A process for preparing poly(arylene sulfide sulfone) by contacting a dihaloaromatic sulfone, an organic amide, a sulfur-containing compound, water, and an alkali metal carboxylate, wherein the...
|
|
|
4818809 |
Aromatic sulfide amide polymer and a process for the production thereof
Aromatic sulfide amide polymers composed of a repeating unit having the formula (I) and a repeating unit having the formula (II) below, having an inherent viscosity ranging from 0.02 to 10 dl/g....
|
|
|
4816547 |
Process for producing carbon dichalcogenide homopolymer and homopolymer produced thereby
The present invention provides a process for producing carbon dichalcogen polymers having a conductivity of about 10 -8 S/cm without doping treatment which is increased to 10 -4 to 10 -2 S/cm by...
|
|
|
4711796 |
Poly(arylene sulfide) coating compositions
A poly(arylene sulfide) coating composition, method of preparing the composition, and method of coating are disclosed. The composition comprises a finely-divided poly(arylene sulfide) having from...
|
|
|
4670180 |
Metal scavenger and metal scavenging process
A metal scavenger is composed of an addition product of a polyamine and an epihalohydrin. The addition product contains as substituent or substituents at least one carbodithio group and/or at least...
|
|
|
4451643 |
Production of arylene sulfide polymer beads
A method for producing a polymer in which lithium hydroxide, optionally also employing either lithium chloride or lithium acetate, is contacted with N-methyl-pyrrolidone in the presence of lithium...
|
|
|
4393197 |
Arylene sulfide polymer preparation
A method for producing arylene sulfide polymer in which a reaction mixture containing at least one polyhalo-substituted aromatic compound, at least one organic amide, at least one alkali metal...
|
|
|
4324886 |
Arylene sulfide polymer prepared from aminoalkanoate
Alkali metal aminoalkanoate is prepared by contacting in the presence of an alkali metal carboxylate a reaction mixture in which there is at least one alkali metal hydroxide, at least one lactam,...
|
|
|
4102874 |
Preparation of organic polysulfide polymers using heavy residues from vinylchloride manufacture
In the abatement of a waste disposal problem in the manufacture of vinyl chloride wherein 1,2 dichloroethane is an intermediate and a heavy residue is recovered as still bottoms, from the...
|
|
|
4100112 |
Process for the production of amine silicate compounds and their resinous condensation products
Amine silicate compounds are formed by the chemical reaction of hydrated silica with an amine compound in the presence of a suitable alkali catalyst at a suitably elevated temperature, and then by...
|
|
|
4092293 |
Polymercaptans for curing epoxy resins and method of preparation thereof
Disclosed is a polymercaptan material and method for preparation thereof useful in the curing of epoxy resins to impart a more hydrophobic characteristic to the resultant thermoset polymers for use...
|
|
|
4060520 |
Continuous reaction for preparation of arylene sulfide polymer
A continuous reaction process is provided for producing arylene sulfide polymer in which a dihalo aromatic compound is contacted with a sulfur complex produced by contacting a solution of sodium...
|
|
|
4041006 |
Flocculant composition and process
Oil-dispersed poly(vinylimidazoline) and poly(2-vinylimidazolinium) bisulfate flocculant compositions and process for in situ preparation of same.
|
|
|
3884884 |
Arylene sulfide polymers
A method of producing arylene sulfide polymers employing (1) polyhalosubstituted aromatic compounds; (2) after-defined sources of sulfur; and (3) alkali metal aminoalkanoates.
|