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7417075 |
Cationically polymerizable composition, actinic radiation curable ink-jet ink, and production method of cationically polymerizable composition
A cationically polymerizable composition containing a cationically polymerizable compound and a cationic polymerization initiator, wherein a total content of a cationic compound, a metal compound...
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7268204 |
Complex of a multimetal cyanide compound and methods of forming polyethercarbonate polyols
A method of forming a polyethercarbonate polyol enhances incorporation of CO 2 into the polyethercarbonate polyol. The method provides a catalyst including a multimetal cyanide compound. The...
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7160962 |
Elastomer-modified epoxy siloxane compositions
Elastomer-modified Epoxy-polysiloxane compositions of this invention are prepared by combining a silicone intermediate, with an epoxy resin, an elastomeric resinous intermediate, a polyfunctional...
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6979722 |
Process for production of alkyllene oxide polymers
According to a process for production of alkylene oxide polymers offered by the present invention, an alkylene oxide is subjected to a polymerization reaction under presence of a catalyst in a...
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6977236 |
Preparation of a double metal cyanide catalyst
The present invention relates to a process for the preparation of a double metal cyanide (DMC) catalyst, which process involves:
(a) combining an aqueous solution of metal salt with an...
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6822068 |
Method for producing highly-branched glycidol-based polyols
This invention relates to a process for the preparation of highly-branched polyols by polymerisation of glycidol in the presence of a hydrogen-active starter compound with basic catalysis, wherein...
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6815529 |
Catalyst for producing aliphatic polycarbonate and the preparation thereof
This invention relates to a catalyst for producing aliphatic polycarbonate, which is composed of a rare-earth coordination compound; an alkyl metal compound; a polyol; and a carbonate. The...
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6773754 |
Accelerated curing of epoxy gelcoats
Aqueous solutions of inorganic nitrate salts are used to accelerate the gelling of epoxy gelcoat resins without adversely affecting the glass transition temperature of the finally cured gelcoat....
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6455711 |
Method for producing polytetrahydrofuran
A process for preparing polytetrahydrofuran, polytetrahydrofuran copolymers or diesters or monoesters of these polymers comprises polymerizing tetrahydrofuran in the presence of at least one...
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6362312 |
Catalyst and method for the production of polytetrahydrofuran
In a process for preparing polytetrahydrofuran, polytetrahydrofuran copolymers or diesters or monoesters thereof comprises polymerizing tetrahydrofuran in the presence of at least one telogen...
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6359108 |
Method for polymerizing cyclic ether
A process for polymerizing cyclic ethers over a heterogeneous catalyst comprises using a heterogeneous catalyst comprising one or more pillared interlayered clays (PILCs).
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6274700 |
Catalyst and method for producing polytetrahydrofuran
In a process for preparing polytetrahydrofuran, polytetrahydrofuran copolymers or diesters or monoesters thereof by polymerization of tetrahydrofuran in the presence of at least one telogen and/or...
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6235808 |
Radiation-curable cycloaliphatic epoxy compounds, uses thereof, and compositions containing them
Disclosed are compounds of the formulas ##STR1## which are useful as monomers in photopolymerizable compositions. Also disclosed are methods of polymerizing these monomers, and polymers produced...
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6133411 |
Slurry mixture forming an additive for producing a hydrodynamic drag reduction aqueous polymer solution
A slurry mixture comprising a water soluble resin of the polyacrylamide cs of polymers suspended as a gel in a non-solvent to the resin, but itself water soluble, from a group consisting of (a) the...
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6103850 |
Sealants made using low unsaturation polyoxyalkylene polyether polyols
There is provided an sealant made with an isocyanate or hydroxyl terminated prepolymer made by reacting a stoichiometric excess of an organic polyisocyanate with polyols made of at least a...
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6001873 |
Process for preparing a high purity epoxy resin
This invention relates to a process for preparing a high purity epoxy resin comprising reacting an aromatic compound containing hyroxyl or amino group with an excess amount of an epihalohydrin in...
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5969036 |
Epoxy-containing die-attach compositions
In accordance with the present invention, there are provided novel compositions for attaching semiconductor devices to substrates. Invention compositions comprise liquid monomer vehicle comprising...
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5886138 |
Process for the preparation of tetrahydrofuran polymers
A process for the continuous and discontinuous production of tetrahydrofuran polymers by homopolymerizing tetrahydrofuran or copolymerizing tetrahydrofuran with 1,2-alkylene oxides in the presence...
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5770678 |
Polymerization of, and depolymerization to, cyclic ethers using selected metal compound catalysts
A process for polymerizing oxiranes, oxetanes, oxepanes, dioxolanes, trioxanes, and tetrahydrofurans to their respective polymers by contacting them with a selected metal compound is disclosed; and...
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5641853 |
Polymerization of cyclic ethers using selected metal compound catalysts
A process for polymerizing oxepanes, dioxolanes, trioxanes, and tetrahydrofurans to their respective polymers by contacting them with a selected metal compound and an accelerator which is a...
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5614126 |
Solventless curable resin composition, in particular for the fabrication of prepregs
The invention relates to a substantially solventless curable resin composition, in particular for the fabrication of prepregs, which contains more than 45% by weight of substances which are solid...
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5480928 |
Preparation of stable dispersions of ethylene oxide polymers
A process for producing a stable dispersion of ethylene oxide polymer which comprises contacting (a) a slurry of granular ethylene oxide polymer in a first inert normally-liquid hydrocarbon...
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5478920 |
Cyclic ether polymerization using silicon compound accelerators
When selected silicon compounds are added to cationic polymerizations of cyclic ethers such as oxiranes and tetrahydrofurans, the rate of polymerization is often increased, and novel polyethers are...
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5470896 |
Storage-stable solutions of accelerator systems
Solutions of accelerator systems comprising a binary system comprising a) 10 to 90% by weight of a salt of formula I [Me] m x ♁ [R] n y .crclbar. (I), wherein x and y are the...
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5426174 |
Hydroxy-functionalized polyoxyalkylene ether compositions derived from mixtures of C.sub.4 epoxides
Hydroxy-functionalized polyoxybutylene ether compositions having improved thermal and oxidative stability are prepared by the polymerization of a mixture of C 4 epoxides in the presence of an...
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5290912 |
Process for producing a polyoxyalkylene compound
The present invention has an object of producing a polyoxyalkylene compound by ring-opening polymerization of an alkylene oxide to a certain specific highly hydrophobic initiator. The present...
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5212261 |
Latent, heat-curable epoxy resin compositions containing metal carboxylate curing systems
Latent, heat-curable epoxy resin compositions containing metal carboxylate curing systems provide exceptional latency, particularly at elevated temperature, as well as facile curing, high T g and...
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4962281 |
Synthesis of stereoregular poly(propylene oxide)
Stereoregular, crystalline, isotactic poly(propylene oxide) is prepared using an effective concentration of a hydrotalcite type catalyst in a process conducted above a temperature of about 100° C....
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4943626 |
Primary polyether active hydrogen compounds which are prepared from linked, protectively initiated polyalkyleneoxides
Polyether active hydrogen compounds having at least two terminal active hydrogen groups on primary carbon atoms are prepared by (a) forming polyoxyalkylene molecules each having at least one active...
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4861839 |
Metal chelate compound and curable coating composition therefrom
A metal chelate compound in which a chelate forming metal is coordinated with a ligand represented by the formula ##STR1## wherein R 1 , R 2 and R 3 , which are the same or different, represent a...
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4728722 |
Preparation of polyoxybutylene polyoxyalkylene glycols having a narrow molecular weight distribution and a reduced content of oligomeric cyclic ethers
A process for the batchwise preparation of polyoxybutylene polyoxyalkylene glycols by copolymerizing tetrahydrofuran with a 1,2-alkylene oxide in the presence of compounds containing reactive...
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4675379 |
Fire and heat resistant laminating resins based on maleimido and citraconimido substituted 1-(diorganooxyphosphonyl)-methyl)-2,4-and-2,6-diaminobenzenes
The subject invention pertains to a novel class of fire- and heat-resistant bisimide resins prepared by thermal polymerization of maleimido or citraconimido substituted...
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4487914 |
Curing agents for epoxy resins
A curable composition comprising an epoxy resin or a monoepoxide and a curing agent comprising a metal salt complex of an adduct of an imidazole and a monofunctional epoxy compound.
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4329445 |
Process for preparing a tetrahydrofuran-alkylene oxide copolymer with treated bentonite catalyst
A modified montmorillonite clay is prepared by heating it, impregnating it with an organic liquid, acid-activating it with a strong acid, and then washing it with water until it is substantially...
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4326047 |
Process for reacting alkylene oxides with hydroxyl-containing initiator compounds
Polyether hydroxyl-containing compounds are prepared by reacting a monoepoxy-containing compound such as propylene oxide with a compound containing one or more OH and/or SH groups such as a low...
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4282387 |
Process for preparing polyols
The invention describes an improved process for preparing polyols by reacting a mono-epoxy compound such as propylene oxide with a hydroxyl-containing initiator compound such as glycerine in the...
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4267309 |
Process for preparing olefin oxide polymerization catalysts
In a process for the preparation of an olefin oxide polymerization catalyst comprising: (i) admixing calcium, ammonia, an alkylene oxide modifier, and an organic nitrile modifier, the alkylene...
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4246394 |
Process of hardening epoxy coating composition with dicyandiamide/imidazoline derivative
An improvement for producing a coating from a powder lacquers composition comprising at least one 1,2-epoxide compound having at least one 1,2-epoxide group in the molecule which compound has a...
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4243799 |
Polymerization of tetrahydrofuran
A process for the preparation of polybutylene glycol carboxylic acid diesters of the formula R--CO--O--CH 2 CH 2 CH 2 CH 2 --O) n CO--R 1 by polymerizing pretreated tetrahydrofuran in the...
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4235751 |
Modified montmorillonite clay catalyst
A modified montmorillonite clay is prepared by heating it, impregnating it with an organic liquid, acid-activating it with a strong acid, and then washing it with water until it is substantially...
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4228272 |
Method of catalytically preparing tetrahydrofuran/alkylene oxide polymerizates using a montmorillonite clay as the catalyst
A polymerizate of THF and an alkylene oxide is prepared by catalytic polymerization, using as a catalyst an acid-activated montmorillonite clay having a pore volume of 0.4-0.8 cubic centimeter per...
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4224429 |
Process for the anionic polymerization in the presence of cryptants
A process for the anionic polymerization or copolymerization of olefinic monomers, dienic monomers, vinyl monomers and heterocyclic monomers is described which comprises reacting at least one...
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4166898 |
Process for producing copolymer having carbonate linkages
A copolymer having carbonate linkages is produced by copolymerizing an epoxy compound with carbon dioxide in the presence of an isoprene-magnesium complex compound or a reaction mixture of said...
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4127513 |
Method for preparing polyether glycols
The production of undesirable oligomeric cyclic ethers in the preparation of polyether glycols is reduced by using as a catalyst an acid-activated montmorillonite clay which contains, per gram, 0.1...
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4116887 |
Antionic polymerization
A novel process for polymerization or copolymerization of monomers is described, according to which the reaction is carried out in the presence of an anionic initiator and a macroheterocyclic...
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4115296 |
Polyhalocarboxylic acid salts as accelerators for curing epoxide resins
To accelerate the curing of epoxide resins by particular curing agents, i.e., polyamines, polyaminoamides, polycarboxylic acids, or polycarboxylic acid anhydrides, there is employed an aliphatic or...
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4031036 |
Use of bis(fluoroaliphaticsulfonyl) imides in cationic polymerization
Bis(fluoroaliphaticsulfonyl)imides, in active or latent form, are used as catalysts for the polymerization of cationic sensitive monomers, e.g., epoxy resins.
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3966835 |
Permanently antistatic polyamide compositions
The invention relates to novel permanently antistatic polyamide compositions comprising an aliphatic polyamide and from 0.5 to 40 % by weight, based on the polyamide composition, of a polyalkylene...
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3953383 |
Catalytic process for copolymerizing epoxy compounds with carbon dioxide
A catalyst composition and a process for preparing same comprising the reaction product of (a) an organo-metallic compound having the general formula R'nM, wherein n is an integer, at least one R'...
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3907706 |
Latent catalyst systems for cationically polymerizable materials
A multi-component catalyst system that is latent at a first elevated temperature but is rapidly activated at a second temperature only slightly elevated over the first temperature comprises 1)...
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