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| Number | Title | Issue Date |
| 7196145 | Heterofunctional copolymers of glycerol and polyethylene glycol, their conjugates and compositions The present invention relates to heterofunctional copolymers of glycerol and polyethylene glycol, conjugates of these heterofunctional copolymers with bioactive agents, nanoparticles, hydrophobic polymers and/or lipids; and to compositions containing these conjugate... | 03/27/2007 |
| 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 amine, an optional organometallic catalyst, and optional fillers, pigm... | 01/09/2007 |
| 7087710 | Polymeric surfactants derived from cyclic monomers having pendant fluorinated carbon groups A fluorine containing polymer which acts as a wetting, flow or leveling agent, and has at least one polar group. The polymer has at least one pendant or ether side chain containing from about 1 to about 20 carbon atoms with at least 25% of the hydrogen atoms being r... | 08/08/2006 |
| 7067233 | Compound having an epoxy group and a chalcone group, method of preparing the same, and photoresist composition comprising the same A compound including an epoxy group that has a heat curing property and a chalcone group that has a radiation curing property is represented by the following formula: wherein n is an integer from 1 to 10,000, and e... | 06/27/2006 |
| 7049388 | Process for manufacturing an α-dihydroxy derivative and epoxy resins prepared therefrom A process for manufacturing an α-dihydroxy derivative from an aryl allyl ether wherein such α-dihydroxy derivative can be used to prepare an α-halohydrin intermediate and an epoxy resin prepared therefrom including epoxidizing an α-halohydrin intermediate produc... | 05/23/2006 |
| 6887919 | Pressure sensitive adhesive and its preparation A pressure sensitive adhesive composed of a mixture comprising a) a styrene block copolymer having a star-shaped structure and a molecular weight Mw of more than 300,000 g/mol, or having elastomer blocks which contain more than 30% by weight ... | 05/03/2005 |
| 6838529 | Polyester composition and connector A polyester composition prepared by melting and blending a polyester with a glycidyl ester compound, a glycidyl ether compound and a catalyst has good hydrolysis resistance and, when melted, gives little gas generation and undergoes little viscosity change. It is mo... | 01/04/2005 |
| 6794478 | Preparing epoxy resin by distilling two fractions to recover and reuse epihalohydrin without glycidol A process for preparing an epoxy resin involves the reaction of a polyhydric phenol with an epihalohydrin in a water-soluble solvent in the presence of an alkali reactive catalyst wherein a continuous distillation of the reaction product is conducted to (1) i... | 09/21/2004 |
| 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. The aqueous accelerants may be used to accelerate gelling of gelcoats t... | 08/10/2004 |
| 6599960 | Storage-stable cationcally polymerized preparations with improved hardening characteristics The invention relates to preparations with improved curing behavior, which are characterized in that they contain 0.0005 to 50 wt. % of soluble and/or fine-particle organic and/or inorganic alkaline earth and/or alkali metal compounds. The preparations ac... | 07/29/2003 |
| 6235870 | Dehydrohalogenation of poly (phenylhalo-b-hydroxypropyl ether) to form polyepoxide Process for the preparation of compounds of the formula ##STR1## wherein Hal represents chlorine, bromine or iodine and preferably chlorine, wherein Ra represents hydrogen or a residue comprising one or more additional groups of the formula, ... | 05/22/2001 |
| 6107419 | Process for preparation of high molecular weight epoxy resin Present invention relates to a process for preparing a high molecular weight epoxy resin which has a weight average molecular weight value more than 40,000 and an epoxy equivalent weight less than 10,000 g/eq. This high molecular weight epoxy is prepared ... | 08/22/2000 |
| 6037425 | Epoxy resin composition The present invention provides an epoxy resin composition useful for casting applications, comprising a reaction product obtained by reacting (A) a bisphenol epoxy resin, and (B) bisphenol compounds, and if necessary, (C) monofunctional phenols or carboxy... | 03/14/2000 |
| 6031012 | Curable composition, foam produced therefrom, and process for producing the foam Provided is a curable composition comprising (A) a phenolic compound having a carbon-carbon double bond, (B) a compound having an SiH group, and (C) a foaming agent. The composition can be foamed and cured at room temperature or under heat at relatively l... | 02/29/2000 |
| 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 the presence of hydroxides of alkali metal or alkali earth ... | 12/14/1999 |
| 6001954 | Process for the manufacture of epoxy compounds Process for the preparation of compounds of the formula ##STR1## wherein Hal represents chlorine, bromine or iodine and preferably chlorine, wherein Ra represents hydrogen or a residue comprising one or more additional groups of the formul... | 12/14/1999 |
| 5998568 | Polyesters prepared from alkoxylated intermediates A method for making a polyester resin comprises reacting a first polyfunctional alcohol or polyfunctional thiol and a carbonate in the presence of a catalyst to form an alkoxylated intermediate. The catalyst comprises: (1) a metal, a salt of a metal, or m... | 12/07/1999 |
| 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 hydrophobic cyanate ester monomer(s) and epoxy monomer(s),... | 10/19/1999 |
| 5955551 | Polyglycidyl ethers of secondary alcohols, their preparation, and curable compositions containing them The present invention relates to polyglycidyl ether compounds containing at least three mono- or divalent radicals A of the general formula wherein R1 represents (i) a straight chain or branched alkyl groups of 1 to 16 carbon atoms, which may b... | 09/21/1999 |
| 5912317 | Oxazolidine-based hardeners for the room temperature cure of resorcinol resins in the bonding of wood articles--II An improved oxazolidine-based hardener to be used with a resorcinol resin or a tannin resin as the adhesive for the bonding of wood articles. Preferably, an oxazolidine is combined with particulate silica, and the resin is combined with a base such as NaO... | 06/15/1999 |
| 5558939 | Copolymerization of polyetherpolyols with epoxy resins A method for producing an epoxy polyetherpolyol having 15 to 75 wt % epoxy comprising heating a polyol and catalyst to initiate condensation, removing water, introducing sufficient epoxy into the reaction mixture to give 15 to 75 wt % epoxy in the product... | 09/24/1996 |
| 5391687 | Method of producing high molecular weight epoxy resin using an amide solvent Ultra high molecular weight epoxy resins are produced in a short time by polymerizing a difunctional epoxy resin having two epoxy group per molecule and a dihydric phenol by heating the difunctional epoxy resin and the dihydric phenol which are present in... | 02/21/1995 |
| 5278260 | Process for the preparation of epoxy resins with concurrent addition of glycidol and epihalohydrin A process for the preparation of epoxy resins having a specific reproducible content of -glycol groups, which process comprises adding at least 0.0085 mol of glycidol or glycidol precursor compound per hydroxy-equivalent of a phenolic compound A wh... | 01/11/1994 |
| 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 Tg and adhesive strength, and other attractive propertie... | 05/18/1993 |
| 5098965 | Process for preparing low-chlorine epoxy resins A process is disclosed for preparing a low-chlorine epoxy resin which employs crystallization of the epoxy from solution in a finishing step of the preparation process. The process involves (a) contacting, in a basic reaction medium, epichlorohydrin and a... | 03/24/1992 |
| 5098964 | Process for preparing low-chlorine epoxy resins A process is disclosed for preparing a low-chlorine tetrafunctional epoxy resin which employs crystallization of the epoxy resin from solution in a finishing step of the preparation process. The process involves (a) contacting, in a basic reaction medium,... | 03/24/1992 |
| 5075386 | Cross-linkable hot-melt adhesive and method of producing same A cross-linkable hot-melt adhesive is prepared by mixing an acid graft modified propylene/olefin copolymer with an epoxy cross-linking agent and a tertiary amine catalyst. The adhesive is cross-linked at an elevated temperature such as when melt mixing th... | 12/24/1991 |
| 5028686 | Concurrent addition process for preparing high purity epoxy resins Epoxy resins which are relatively low in total bound halide are prepared by concurrently and continuously adding a mixture of (1) a mixture of an epihalohydrin, a compound containing an average of more than one group reactive with a vicinal epoxide group ... | 07/02/1991 |
| 4877857 | Preparation of epoxy resins The construction costs of a process for preparing epoxy compounds from aromatic compounds containing an active hydrogen atom reactive with an epihalohydrin by reacting such compounds with an epihalohydrin in the presence of an alkali metal hydroxide while... | 10/31/1989 |
| 4831101 | Polyglycidyl ethers from purified epihalohydrin A process for the preparation of at least one member of the group consisting of monoglycidyl and polyglycidyl compounds comprising reacting a member of the group consisting of mono- and polyvalent phenols, aromatic amines and aromatic carboxylic acids wit... | 05/16/1989 |
| 4795791 | Method for increasing the functionality of an epoxy resin Epoxy resins of increased functionality are prepared by branching the epoxy resin in the presence of a lithium or cesium compound as a branching catalyst until the desired functionality is obtained and thereafter terminating the branching reaction. Since ... | 01/03/1989 |
| 4778863 | Preparation of epoxy resins having low undesirable halogen content Glycidyl derivatives of compounds containing --OH, --NH2 and/or --COOH groups are prepared by reacting in the presence of a mixture of solvents, at least one of which is a polar aprotic solvent, an excess of an epihalohydrin with a compound con... | 10/18/1988 |
| 4769437 | Process for the production of phenolic resins Phenolic resins are produced by reacting a substituted alcohol or epoxy compound with a phenol compound in the presence of an alkali salt-forming compound. The phenolic resin may be utilized as molding material, as a coating agent and as an adhesive.... | 09/06/1988 |
| 4756787 | Compositions curable by in situ generation of cations A co-curable composition, having utility as a first part of a two-part cationically curable composition and containing a latent curing component which is reactive with a latent curing component in a second part of the two-part composition to form curingly... | 07/12/1988 |
| 4751280 | Preparation of epoxy resins and aftertreatment of resin via drying, filtering and washing Epoxy resins are prepared by (a) adding an alkali metal hydroxide solution to a mixture containing an excess of an epihalohydrin, a phenolic hydroxyl-containing or an aromatic amine-containing compound and an organic solvent which codistills with water an... | 06/14/1988 |
| 4746725 | Cyclic polycarbonate-polyepoxide reaction product and method for their preparation Resinous compositions are prepared by the reaction of a composition comprising cyclic polycarbonate oligomers with at least one polyepoxide compound, in the presence of a polycarbonate formation catalyst. The cyclic polycarbonate oligomer composition is p... | 05/24/1988 |
| 4722990 | Method for increasing the functionality of an epoxy resin Epoxy resins of increased functionality are prepared by branching the epoxy resin in the presence of a lithium or cesium compound as a branching catalyst until the desired functionality is obtained and thereafter terminating the branching reaction. Since ... | 02/02/1988 |
| 4722983 | Process for the preparation of glycidyl compounds A process for the preparation of glycidyl compounds by reacting a compound containing at least one phenolic group with at least the equivalent amount, based on the phenolic group, of a halohydrin in a substantially anhydrous, aprotonic solvent in the pres... | 02/02/1988 |
| 4711911 | Process for the production of phenolic resins Phenolic resins are produced by reacting a substituted alcohol or epoxy compound with a phenol compound in the presence of an alkali salt-forming compound. The phenolic resin may be utilized as molding material, as a coating agent and as an adhesive.... | 12/08/1987 |
| 4684701 | Method for preparing advanced epoxy or phenoxy resins with low aliphatic halide content Advanced epoxy resins having a low total aliphatic halide content are prepared by reacting an epoxy resin having an average of more than one 1,2-epoxide group per molecule with a material having an average of more than one phenolic hydroxyl group per mole... | 08/04/1987 |
