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4126631 β-Carbonylpolyfluoroalkyl sulfonate esters  
Novel β-carbonylpolyfluoroalkyl sulfonate esters, e.g., ##STR1## are prepared by reacting SO 3 with the corresponding acyclic fluorovinyl esters, e.g., CF 3 CFCFOCH 3 , at a temperature of...
4119593 Polyepoxide high solids coatings  
High solids, low energy cure coating compositions of aliphatic polyepoxides, monocarboxylic acid compounds as initiator and stannous salts as catalysts.
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...
4115295 Polymerizable compositions containing highly fluorinated aliphatic sulfonyl protonic acid catalyst  
Two-part polymerizable compositions are described which contain (a) organic material having epoxide functionality, (b) organic material having hydroxyl functionality, and (c) a catalyst comprising...
4111909 Controlled reactivity epoxy resin compositions  
Epoxy resin compositions having extended reactivity (gel time) are prepared by adding phosphate or phosphite compounds to epoxy resin-dicyandiamide-tertiary amine curing systems. Such compositions...
4108826 Furfuryl alcohol-hexaalkoxymethylmelamine foundry binders  
A foundry binder comprising furfuryl alcohol and hexaalkoxymethylmelamine is disclosed. The binder is substantially anhydrous. In using the binder it is substantially free of formaldehyde odor in...
4107353 Method for photopolymerization of pigmented epoxide compositions  
Highly pigmented liquid epoxide coating compositions containing one or more liquid epoxides, up to 60% by weight of pigment, one or more carboxylic acid anhydrides and specified diazonium salts of...
4086091 Method of applying and curing epoxy coating compositions using dicarbonyl chelate of group IIIa-Va element and UV irradiation  
A method for effecting the thin section cure of an epoxy resin is provided, based on the use of a moisture sensitive dicarbonyl chelate of a Group IIIa-Va element. Rapid cure of the applied epoxy...
4085087 Method of reducing static electricity in plastic compositions and antistatic compositions  
A method of reducing the electrostatic charge aquired by a plastic composition by incorporating therein an antistatically effective amount of a mixed oxide of phosphorus and one or more metals...
4069055 Photocurable epoxy compositions containing group Va onium salts  
Cationic polymerization of epoxy resin such as epoxy monomers or prepolymers, can be achieved by use of certain radiation sensitive aromatic onium salts of Group Va elements. Curable compositions...
4061692 Process for the manufacture of swellable, absorptive polymers of polyhydroxy methylene  
This invention relates to a process for the manufacture of absorptive polymers which are at least preponderantly insoluble in water, but capable of swelling in water, which comprises etherifying...
4058401 Photocurable compositions containing group via aromatic onium salts  
Cationic polymerization of epoxy resin materials, such as epoxy monomers or prepolymers, can be achieved by use of certain radiation sensitive aromatic onium salts of Group VIa elements. Curable...
4043967 Latentizing solvents for epoxy systems  
The catalytic activity of bis(highly fluorinated aliphatic sulfonyl) methanes is latentized by ether, ester and aromatic solvents in epoxy resin polymerizable systems.
4035434 Graphite intercalation  
Intercalation of a Lewis acid fluoride in graphite is effected in the presence of gaseous fluorine. The reaction results in new compositions useful as catalysts and as atmospheric pressure...
4032516 Method of making polyurethane powder  
Method for preparing polyurethane resin directly in finely divided form in which method a first reactant for forming the polyurethane is emulsified as fine droplets with the aid of special...
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.
4024109 Process for preparing cured epoxide polymers  
This invention comprises curing a polyepoxide composition in the presence of, as curing agent, 0.03-1 mole per 1 epoxide equivalent of 1,3,6,8-tetra azo-tricyclo-[4,4,1 1 ,6.1 3 ,8 ] dodecane...
4020018 Alkene oxide or acrylate polymerization or copolymerization catalyzed by organoaluminum-organophosphine-metal salt of a beta-diketone  
A catalyst system comprising (I) an organoaluminum compound, (II) an organophosphine compound, and (III) a metal salt of a beta-diketone, is effective to homopolymerize an alkene oxide,...
4011281 Polyether thiourea epoxy curing agents  
An improved curable epoxy resin composition of a vicinalpolyepoxide and an effective amount of a novel polyether thiourea curing agent is disclosed. The improved curable epoxy resins which are...
4000115 Photopolymerization of epoxides  
The useful pot life of epoxide compositions containing a phenyldiazonium hexafluorophosphate as a latent polymerization catalyst is appreciably extended when the diazonium compound contains one or...
3984357 Fluoroaliphaticsulfonyl substituted ethylenes  
Fluoroaliphaticsulfonyl substituted ethylenes, useful as catalysts in polymerization of monomers, e.g., epoxide, vinyl ether, and N-vinyl monomers, are prepared by condensation of precursor...
3968084 Curable composition of epoxy resin and cured product thereof  
A curable epoxy resin composition containing an epoxy resin and, as a curing agent, 3,9-bis(2-hydrazidoethyl)-2,4,8,10-tetraoxaspiro-[5,5]-undec ane, as well as the cured resins produced from such...
3956237 Epoxy resin compositions comprising latent amine curing agents and novel accelerators  
Novel epoxy resin compositions are disclosed which comprise (A) an epoxy resin, (B) a latent amine curing agent for said epoxy resin, and (C) a unique class of latent accelerators corresponding to...
3949143 Epoxy resin coatings cured with phototropic aromatic nitro compounds  
Photopolymerizable compositions comprising a polymerizable epoxide, vinyl ether, or other acid-catalyzed monomer and a phototropic, alkyl substituted-orthonitrobenzene containing compound are...
3914202 Epoxy resin compositions containing 2-chloro-1-chloromethylethyl-2,3-epoxy propyl ether  
This application discloses an epoxy resin composition containing, as a reactive diluent, 2-chloro-1-chloromethylethyl-2,3-epoxy propyl ether. These compositions do not reduce the physical...
3909480 Epoxy resin compositions containing tetraphenylborates of imidazoles  
This invention provides an epoxy resin composition excellent in curability and storage stability (shelf life or potting life) and capable of yielding a cured product excellent in various...
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)...
3903048 Catalyst systems for lowering epoxy resin cure temperatures  
New structural adhesives are disclosed in which an epoxy resin is cured with dicyandiamide. The curing of the epoxy resin by dicyandiamide is accelerated by the addition of appropriate amounts of...
3901833 Hardenable epoxy resin compositions and process for making the same  
A curable composition comprising a mixture of an epoxy resin and a hardener can be prepared by dissolving the resin and curing agent in a low boiling solvent and flashing off the solvent at...
3896082 Epoxy powder coatings and method therefor  
Imidazoline derivatives having the formula ##EQU1## are used as hardeners for powder coating systems based on 1,2-epoxy compounds having at least one 1,2-epoxy group in the molecule and a lower...
3895952 Phototropic compounds as acid catalyst for epoxy materials  
Photopolymerizable compositions comprising a polymerizable epoxide, vinyl ether, or other acid-catalyzed monomer and a phototropic, alkyl substituted-orthonitrobenzene containing compound are...
3896090 Process for preparing polycarbonates  
Polycarbonates prepared from an alkylene carbonate (or 1,2-epoxide with carbon dioxide) and monomeric polyols are prepared in good yield in short reaction times at atmospheric pressure containing...
3890252 Shaped articles of crystalline copolymers of cis-1,4-dihalo-2,3-epoxybutane  
Shaped articles of high molecular weight crystalline copolymers of cis-1,4-dihalo-2,3-epoxybutane and a small amount of at least one other monomer which is a halogen-substituted alkylene oxide or...
3890253 Reversibly crosslinked polymers  
Reversible cross-linking is imparted to polymers and copolymers, especially of the vinyl, olefinic, and olefinic oxide types by means of recurring dicyclopentadiene linkages. Difunctional...
3883449 Polymerization of 1,4-halosubstituted-2,3-epoxybutanes  
An improved process for the polymerization of 1,4-halosubstituted-2,3-epoxybutanes is described. Improvements in conversion, yield, and reaction rate are realized using as catalyst the combination...
3880779 Polymerization process of vicinal alkylene oxides and polymerization catalyst therefor  
An improved process for polymerizing vicinal alkylene oxides in the presence of a catalyst comprising the reaction product of an aluminum or tin compound of the formula (i) R n AlX 3 -n , (ii) R'...
3878132 Epoxy resins which are glycidyl ethers of glycerine  
Epoxy resins which are glycidyl ethers of glycerine having improved physical properties, when cured to a thermoset condition, are the dehydrohalogenated reaction products of A. a mixture comprising...
3876564 Process for preparing alkylene oxide polymers  
Alkylene oxide polymers and copolymers of excellent thermal stability are prepared by reacting (1) alkylene oxides, (2) amines, (3) organozinc compounds and (4) water, at an elevated temperature....
3875113 Thermosetting compositions derived from an epoxy resin, a polyamine and an imide  
The invention provides heat-resistant compositions which comprise an epoxy resin, a polyamine containing at least two primary amine groups and also either a compound (α) of the formula: ##SPC1##...
3875189 Highly unsaturated polyethers  
New glycidyl ethers of polymeric highly unsaturated polyethers are disclosed. Also disclosed are methods for preparing the new glycidyl ethers by reacting polyepihalohydrins with certain...
3867353 POLYMERIZATION OF OXIRANES AND LACTONES  
Monitored addition of lactone, or of lactone with oxirane or oxetane, to a polymerization mixture containing catalyst and a monohalooxirane, such as epihalohydrin, results in a copolymer of higher...
3862150 DELAYED POLYURETHANE ACTION CATALYSTS  
Novel salts of tertiary amines and alpha-substituted carboxylic acids have advantages as delayed action thermally activated catalysts such as in urethane and epoxy catalysis. Some salts of tertiary...
3857875 SULFONYLDIALKANOIC ACID ESTERS OF 2,3-DIBROMO-1-ALKANOLS  
Dibromoalkyl esters of sulfonyldialkanoic acids useful as flame retardants.
3852222 FLUORINATED EPOXY RESINS  
Highly fluorinated polymers are synthesized and crosslinked to form fluorted network polymers.
3764582 PROCESS FOR PRODUCING EPOXIDE POLYADDUCTS IN PRESENCE OF PHOSPHORIC ACID TRIAMIDE ACCELERATORS  
Process for the production of epoxide polyadducts by the reaction of epoxide compounds with compounds giving polyadducts of epoxide compounds, whereby the reaction is carried out in the presence of...
3755207 VULCANIZABLE EPIHALOHYDRIN POLYMER COMPOSITION  
A vulcanizable epihalohydrin-polymer elastomer comprising (1) an epihalohydrin-polymer elastomer, (2) at least one metal cyanate selected from the group consisting of cyanates of matals of Groups...
3717593 A COMPOSITION COMPRISING A 1,2-POLYEPOXIDE AND PIPERIDINE DERIVITIVE AS CURING AGENT  
The new compound 4-amino-3-aminomethylpiperidine is manufactured by hydrogenating 4-amino-3-cyano-1,2,5,6-tetrahydropyridine in a manner which is in itself known. The...
3706713 ALIPHATIC POLYCARBONATES  
Compositions comprising novel copolymers of carbon dioxide and one or more aliphatic 1,2 monoepoxide having at least four carbon atoms per molecule are prepared in the presence of a catalytic...
3683044 HEAT-CURABLE COMPOSITION COMPRISING POLYGLYCIDYL XYLYLENE-DIAMINE AND PROCESS FOR PREPARATION OF POLYGLYCIDYL XYLYLENEDIAMINE  
A process for preparing a novel polyglycidyl xylylenediamine having an epoxy equivalent of 90 - 200 which comprises reacting xylylenediamine with epichlorohydrin and dehydrochlorinating the...
3674715 SOLID SOLUBLE POLYMERS FROM 4-VINYLCYCLOHEXENE DIEPOXIDE  
Soluble solid easily handled polyepoxide polymers can be formed from 4-vinylcyclohexene diepoxide in a catalytic process using a tertiary amine and an active hydrogen containing compound. The...
Matches 251 - 300 out of 466 < 1 2 3 4 5 6 7 8 9 10 >