Class / Patent application number | Description | Number of patent applications / Date published |
525472000 | Solid polymer derived from aldehyde or aldehyde-type reactant and wherein none of the reactants forming the solid polymer contains a phenol-, amine-, -N=C=X, -N-S(=O)- or ketone group or a condensate thereof except when an amine group appears in hexamethylenetetramine or a derivative thereof (X is chalcogen) | 11 |
20080200621 | Retardation Film, Novel Polymer, Optical Film, and Image Display Device - A retardation film comprising a monolayer film having a birefringent chain polymer orientated. The polymer has a repeating unit of the structure of the general formula: (V) wherein R | 08-21-2008 |
20110009574 | MODIFIED NAPHTHALENE FORMALDEHYDE RESIN, TRICYCLODECANE SKELETON-CONTAINING NAPHTHOL COMPOUND AND ESTER COMPOUND - A modified dimethylnaphthalene formaldehyde resin is disclosed, which is excellent in heat resistance and useful for thermosetting resins which are used for an electrical insulating material, a resin for resist, a semiconductor sealing resin, an adhesive for printed wiring board, a matrix resin for electrical laminate or prepreg to be mounted in electrical instruments, electronic instruments, industrial instruments, etc., a buildup laminate material, a resin for fiber-reinforced plastic, a sealing resin for liquid crystal display panel, a paint, a variety of coating agents, an adhesive, a laminate for electrical or electronic parts, a molded article, a coating material, a sealing material and the like, the modified dimethylnaphthalene formaldehyde resin being obtained by modifying a polyfunctional dimethylnaphthalene formaldehyde resin having a constituent unit represented by the following general formula [1] in a molecule thereof with at least one member selected from the group consisting of a phenol represented by the following general formula [2], a naphthol represented by the following general formula [3] and a naphthol represented by the following general formula [4] (provided that at least any of the naphthol represented by the general formula [3] or the naphthol represented by the general formula [4] must be included). | 01-13-2011 |
20140094572 | MANUFACTURING METHODS FOR THE PRODUCTION OF CARBON MATERIALS - The present application is generally directed to activated carbon materials and methods for making the same. The disclosed methods comprise rapidly freezing synthetically prepared polymer gel particles. The methods further comprise drying, pyrolyzing, and activating steps to obtain an activated carbon material of high porosity. The disclosed methods represent viable manufacturing processes for the preparation of activated carbon materials. | 04-03-2014 |
20140148560 | PREPARATION OF PHENOL-FORMALDEHYDE RESIN BEADS USING SUSPENSION OR EMULSION POLYMERIZATION - Methods for making polymer particles in gel form via an emulsion and/or suspension polymerization are provided. In at least one specific embodiment, the method can include reacting a first reaction mixture comprising a phenolic monomer, an aldehyde monomer, and a first catalyst to produce a prepolymer. The method can also include combining the prepolymer with a carrier fluid and a second catalyst to produce a second reaction mixture. The second catalyst can include a dicarboxylic acid, an anhydride, a dihydroxybenzene, or any mixture thereof. The method can also include polymerizing the prepolymer to form polymer particles in gel form. | 05-29-2014 |
20150018499 | NAPHTHALENE FORMALDEHYDE RESIN, DEACETALIZED NAPHTHALENE FORMALDEHYDE RESIN, AND MODIFIED NAPHTHALENE FORMALDEHYDE RESIN - Provided are a naphthalene formaldehyde resin obtained by reacting a compound (A) represented by formula (1) and formaldehyde (B) in a molar ratio, (A):(B), of 1:1 to 1:20 in the presence of an acidic catalyst, and a deacetalized naphthalene formaldehyde resin and a modified naphthalene formaldehyde resin derived therefrom. | 01-15-2015 |
20150322213 | NCO-MODIFIED POLYOXYMETHYLENE BLOCK COPOLYMERS - The invention relates to a method for producing NCO-modified polyoxymethylene block copolymers comprising the step of polymerizing formaldehyde in a reaction vessel in the presence of a catalyst, the polymerization of formaldehyde in addition taking place in the presence of a starter compound comprising at least 2 Zerewitinoff active H atoms to obtain an intermediate product. The intermediate product obtained is reacted further with an isocyanate to obtain an NCO-modified polyoxymethylene block copolymer. The invention also relates to NCO-modified polyoxymethylene block copolymers obtained by a method of this type and to the use of said copolymers for producing polyurethane polymers. | 11-12-2015 |
20160130383 | AROMATIC HYDROCARBON FORMALDEHYDE RESIN, MODIFIED AROMATIC HYDROCARBON FORMALDEHYDE RESIN, AND EPOXY RESIN, AND METHOD FOR PRODUCING THESE - There is provided an aromatic hydrocarbon formaldehyde resin obtained by reacting an aromatic hydrocarbon compound (A) represented by the following formula (1) with formaldehyde (B) in the presence of an acidic catalyst. | 05-12-2016 |
20160130384 | AROMATIC HYDROCARBON FORMALDEHYDE RESIN, MODIFIED AROMATIC HYDROCARBON FORMALDEHYDE RESIN AND EPOXY RESIN, AND METHODS FOR PRODUCING THESE - There is provided an aromatic hydrocarbon formaldehyde resin obtained by reacting an aromatic hydrocarbon compound (A) represented by the following formula (1) with formaldehyde (B) in the presence of an acidic catalyst. | 05-12-2016 |
525473000 | Solid polymer derived from aldehyde or aldehyde-type reactant containing atoms other than C, H, or O and wherein when hexamethylenetetramine or derivative is a reactant, there is additionally present a reactant containing atoms other than C, H, or O | 3 |
20100160576 | PERFLUORINATED POLY(OXYMETHYLENE) COMPOUNDS - Compounds of Formula (I): | 06-24-2010 |
20120238707 | TERMINAL-MODIFIED DIFUNCTIONAL SULFUR-CONTAINING POLYMERS, COMPOSITIONS THEREOF AND METHODS OF USE - Disclosed are terminal-modified difunctional sulfur-containing polymers that are the reaction products of a sulfur-containing diol, an aldehyde or a ketone, and a compound containing a functional group. Compositions comprising the terminal-modified difunctional sulfur-containing polymers useful as sealants are also disclosed. | 09-20-2012 |
20120238708 | POLYUREA COMPOSITIONS AND METHODS OF USE - Disclosed are polyurea compositions comprising the reaction products of a polyformal-isocyanate prepolymer and a curing agent comprising an amine. The compositions are useful as sealants in aerospace applications. | 09-20-2012 |