|
Match
|
Document |
Document Title |
|
|
5684123 |
Preparation of catalyst solution
A process for the preparation of a solution of a catalyst system, suitable for use in a process for copolymerizing carbon monoxide and one or more ethylenically unsaturated compounds, which...
|
|
|
5681920 |
Process for production of a polysuccinimide and derivatives thereof
Polysuccinimide is produced by thermal polymerization of a precursor or a reactant admixture that includes an unsaturated compound in a plate-type reactor at temperatures sufficient to initiate...
|
|
|
5677405 |
Homopolymers and copolymers of cationically polymerizable monomers and method of their preparation
The invention discloses methods of preparing copolymers from norbornene-type monomers and cationically polymerizable monomers or polymers from catalytically polymerizable monomers by employing...
|
|
|
5670610 |
Catalytic system and process for the copolymerization of olefins with carbon monoxide
An active catalyst in the preparation of alternating copolymers of olefins with carbon monoxide (CO) and consisting of: a) a metal salt of the group IB of the periodic table; b) a bidentate...
|
|
|
5670440 |
Preparation of polymers of carbon monoxide and an aliphatic alpha-olefin
A catalyst composition comprising a) a palladium compound, b) an anion, and c) an asymmetric phosphorus bidentate ligand of the general formula R 5 R 6 P-Q-CHR 9 -PR+7R 8 , wherein Q is...
|
|
|
5670586 |
Polyketones with enhanced tribological properties
Polyketone polymers are cured by exposure to high energy radiation. Radiation sources include gamma radiation sources such as Co 60 emitters as well as e-beam, ion and other commercially used...
|
|
|
5656692 |
Process for transesterification of olefin/acrylic-ester copolymers
Copolymers comprising olefin and alkyl-acrylate-ester repeat units are transesterified by olefin-containing alcohols in the presence of an alkali metal alkoxide catalyst. The transesterified...
|
|
|
5654487 |
Catalyst composition and use in preparing polyketones
Catalyst compositions for preparing polyketones comprising (a) a Group VIII metal compound, containing at least one ligand capable of coordinating to the Group VIII metal, and (b) a boron...
|
|
|
5644023 |
Process for the manufacture of copolymers of ethylene and carbon monoxide
A process comprising: (a) introducing a mixture comprising one or more alpha-olefins, carbon monoxide, and, optionally, one or more dienes into a reaction zone under polymerization conditions; (b)...
|
|
|
5641856 |
Cross-linked resin
A re-moldable cross-linked resin comprising polymer chains which are connected to one another via Diels-Alder adducts obtainable from a dienophile and a diene, the latter being a 2,5-dialkyl...
|
|
|
5631345 |
Process for producing optically active polyketone
A process for producing optically active polyketone which comprises allowing a mono-substituted ethylene to react with carbon monoxide in the presence of a palladium-phosphine complex formed from a...
|
|
|
5612451 |
Amphoteric metal oxides as cocatalyst in the electrophilic synthesis of polyaryl ether ketones
Polyaryl ether ketones are prepared by electrophilic polycondensation using acyl halides as monomer components in the presence of a Lewis acid, by a process in which from 0.001 to 60% by weight of...
|
|
|
5610267 |
Process for preparing polysuccinimide by high temperature reaction
Polyaspartate, useful for inhibition of incrustations due to materials causing hardness in water and of value in detergent formulations, can be prepared by reacting malic acid, maleic acid or...
|
|
|
5605988 |
Polymer formed by reaction of a polyketone and an amino acid
Nitrogen-containing polymers can be formed by the reaction of a polyketone, such as a copolymer of carbon monoxide and propylene, and an amino acid or derivative thereof, such as aspartic acid or...
|
|
|
5604292 |
Polymers with electrical and non-linear optical properties
Novel conjugated amino substituted phenylene polymers are disclosed having on-linear optical properties, and which can be converted to electrically conductive polymers. Such polymers are produced...
|
|
|
5567801 |
Gas phase process for forming polyketones
Polyketones can be formed in enhanced yield by conducting the polymerization of the carbon monoxide and olefin monomers used to form the polyketone in a gas phase polymerization process in the...
|
|
|
5565547 |
Catalyst for the preparation of linear carbon monoxide/alpha-olefin copolymers
Novel catalyst compositions comprising a cationic transition metal complex of the formula (Pd(II)S 4 -x L x ) +2 (A) -n y wherein: Pd(II) is palladium having a valence of +2; S is a...
|
|
|
5565546 |
Copolymer of carbon monoxide and ethylene containing ketal structures
Copolymers comprising carbon monoxide and ethylene contain at least one type of ketal structure and possess enhanced thermal stability so as to be useful in the melt processing of fibers. These...
|
|
|
5561216 |
Late transition metal catalysts for the CO- and terpolymerization of olefin and alkyne monomers with carbon monoxide
A catalyst and method for the co- and terpolymerization of monomers of ethylene, other olefins, and alkynes with carbon monoxide is provided. Such a catalyst a method can be used for form living...
|
|
|
5554687 |
Resins and compositions for the manufacture of heat-resistant high modulus materials, and molded articles obtained from such materials
Composite material produced from a first polyisocyanate-based mixture, from a second mixture comprising at least one ethylenically unsaturated monomer, at least one polyoxyalkylene polyamine and...
|
|
|
5554718 |
Catonic urea/formaldehyde resins, their preparation and their use in the paper industry
Cationic urea/formaldehyde resins are obtainable by condensing urea and formaldehyde in a molar ratio of from 1:1.5 to 1:3 in the presence of polymers which contain not less than 1 mol % of...
|
|
|
5552486 |
Polymers from propoxylated allyl alcohol
Propoxylated allyl alcohol homopolymers and copolymers of allyl alcohol and propoxylated allyl alcohol are disclosed. The polymers are soluble in many organic solvents, making them useful in a...
|
|
|
5539022 |
Aqueous dispersions of acrylate copolymers
Water-dilutable dispersions of acrylate copolymers having a hydroxyl number of from 40 to 200 mg KOH/g and an acid number of from 15 to 50 mg of KOH/g, obtained by free-radical copolymerization of ...
|
|
|
5536370 |
Condensates of polyalkylenepolyamines, their preparation and their use in papermaking
Condensates of polyalkylenepolyamines which are obtainable by (a) partial amidation of polyalkylenepolyamines and (b) condensation of the partially amidated polyalkylenepolyamines with...
|
|
|
5525686 |
Polyvalent metal salt of salicyclic acid resin and process for preparing it
A process for preparing a polyvalent metal salt of a salicylic acid resin which comprises the steps of reacting salicylic acid or its derivative with styrene or its derivative at a temperature of...
|
|
|
5523385 |
Polymerization of carbon monoxide and ethylene using catalyst containing non-coordinating, non-acidic anion
Carbon monoxide and ethylene are polymerized in the presence of a catalytically effective amount of a catalyst formed from a Group VIII metal source, such as palladium, a bidentate ligand...
|
|
|
5523384 |
Process for preparing polyether ketones
Disclosed is a process for preparing polyether ketones comprising reacting one or more bihaloaryl ketones in the presence of a catalyst, co-catalyst and solvent.
|
|
|
5521281 |
Substantially isotactic, linear, alternating copolymers of carbon monoxide and an olefin
The compound, [Pd(Me-DUPHOS)(MeCN) 2 ](BF 4 ) 2 , [Me-DUPHOS: 1,2-bis(2,5-dimethylphospholano)benzene] is an effective catalyst for the highly enantioselective, alternating copolymerization of...
|
|
|
5521249 |
Polyurethanes from copolymers of allyl alcohol propoxylates and vinyl aromatic monomers
Copolymers of vinyl aromatic monomers and propoxylated allyl alcohols having an average of 2 or less oxypropylene groups are disclosed. The copolymers, which have hydroxyl numbers of 80-260 mg...
|
|
|
5520834 |
Polyacetals containing acetaldehyde acetal units, preparation thereof and use thereof in detergents and cleaners
Soluble polyacetals containing acetaldehyde acetal units are obtainable by cationically initiated addition polymerization of (a) compounds containing at least 3 hydroxyl groups, and (b) divinyl...
|
|
|
5516566 |
Cyclic oligomers for production of linear polyketones, polyphthalazines and polyisoquinolines
Low molecular weight cyclic oligomers of formula (I) ##STR1## in which n is an integer of 2 to 20, and each C in the oligomer is a radical of formula (II): ##STR2## and each X in the oligomer is...
|
|
|
5506312 |
Process for converting polyketones to polyesters
A polyketone is contacted with an organic peroxyacid in a reactive, oxidization, slurry process to produce a polyester polymer.
|
|
|
5504158 |
Polyphenylene ether/polyterephthalamide blend
There is provided in accordance with the present invention polyphenylene ether/polyalkyleneterephthalamide compositions of high dimensional stabilities that are suitable for high temeprature...
|
|
|
5496894 |
Low viscosity polymer polyols with improved dispersion stability
The present invention provides polymer polyols and a method for preparing polymer polyols which have (1) exceptional dispersion stability, especially at high styrene contents, and (2) substantially...
|
|
|
5491213 |
Production of polysuccinimide
Polysuccinimide is prepared by reacting an unsaturated C 2 dicarboxylic acid or anhydride thereof, e.g., maleic acid, fumaric acid, and maleic anhydride, with a particulate ammonium salt that is...
|
|
|
5488096 |
Copolymers of carbon monoxide and an olefinically unsaturated compound and process for the preparation thereof
It is disclosed a linear random copolymer of carbon monoxide and one or more olefinically unsaturated compounds wherein the polymer chain contains units originating from the olefinically...
|
|
|
5486581 |
Crosslinked polyketone polymer
It is herein disclosed crosslinked or latently crosslinkable polyketone polymer comprising the polymer, and a minor amount of an iodide salt, wherein the crosslinking is induced by the action of...
|
|
|
5486594 |
Polyketone polymers as nylon toughners
It is disclosed a toughened polyamide comprising a polyamide, such as Nylon 6, and a minor amount of a linear alternating polymer of carbon monoxide and at least one or more ethylenically...
|
|
|
5478656 |
Cationic urea/formaldehyde resins, their preparation and their use in the paper industry
Cationic urea/formaldehyde resins are obtainable by condensing urea and formaldehyde in a molar ratio of from 1:1.5 to 1:3 in the presence of polymers which contain not less than 1 mol % of...
|
|
|
5475083 |
Composition of an ethylene/carbon monoxide copolymer
Compositions of an ethylene/carbon monoxide copolymer and a second component serving as swelling agent or gelling or non-gelling solvent, which are suited to be moulded below the melting point of...
|
|
|
5468838 |
Process for the preparation of polysuccinimide, polyaspartic acid and their salts
Polysuccinimide, polyaspartic acid and their salts are prepared by reaction of maleic anhydride and ammonia, polycondensation of the resulting product in the presence of a solubilizing agent and,...
|
|
|
5459209 |
Coating compositions containing oxidized ethylene-carbon monoxide copolymers as rheology modifiers
An improved coating composition having one or more polymeric binders dispersed in a liquid medium, wherein the improvement comprises an anti-sag and anti-settling effective amount of oxidized...
|
|
|
5455298 |
Latex polymers for pigments coatings prepared in the presence of acetoacetonate moiety
The invention relates to an acrylic polymer latex comprising the polymerization product of an acetoacetate moiety of the structure ##STR1## wherein R 1 and R 2 are the same or different and are...
|
|
|
5442039 |
Mesogenic polycyanates and thermosets thereof
Novel polycyanate and polycyanamide compositions containing one or more rodlike mesogenic moieties, when cured, result in products having improved properties.
|
|
|
5440010 |
Gas phase process for forming polyketones
Polyketones can be formed in enhanced yield by conducting the polymerization of the carbon monoxide and olefin monomers used to form the polyketone in a gas phase polymerization process in the...
|
|
|
5434243 |
Process for the preparation of copolymers
It is herein disclosed a process for the preparation of copolymers of carbon monoxide and one or more ethylenically unsaturated compounds by reacting the monomers under polymerization conditions in...
|
|
|
5422421 |
Polyhydroxyl compounds, a process for their production and their use in coating compositions
The present invention relates to a process for the production of polyhydroxyl compounds having a hydroxyl group content of 2 to 10% by weight and a viscosity at 23° C. of 250 to 80,000 mPa.s by...
|
|
|
5420236 |
Process for the preparation of copolymers
A process for the preparation of copolymers by reacting carbon monoxide and one or more ethylenically unsaturated compounds under polymerizable conditions in the substantial absence of a liquid...
|
|
|
5412026 |
High temperature aqueous polymerization process
This invention relates to high temperature aqueous processes for the polymerization of monoethylenically unsaturated carboxylic monomers to produce low molecular weight, water-soluble polymer...
|
|
|
5412071 |
Catalyst composition and process for the preparation of polymers
A catalyst composition useful in polymerizing carbon monoxide with one or more ethylenically unsaturated compounds is presented. The catalyst composition comprises a metal of Group VIII of the...
|