Class / Patent application number | Description | Number of patent applications / Date published |
528211000 | With nitrogen-containing reactant | 7 |
20080255335 | Resin Composition, Polyimide Resin Composition, Polybenzoxazole Resin Composition, Varnish, Resin Film and Semiconductor Device Using the Same - A resin composition having high heat resistance and low dielectric constant after heat treatment, a varnish thereof and a semiconductor device using the same are provided by a resin composition including a compound having a structure represented by the general formula (1): | 10-16-2008 |
20100016540 | PROCESS FOR THE SYNTHESIS OF ETHERS OF AROMATIC ACIDS - Ethers of aromatic acids are produced from halogenated aromatic acids in a reaction mixture containing a copper (I) or copper (II) source and a diketone ligand that coordinates to copper. | 01-21-2010 |
20100048857 | THERMOPLASTIC POLYPHENOXYQUINOXALINE AND METHOD OF PREPARING THE SAME - The manufacture of polyetherquinoxalines may be accomplished by polymerization of quinoxaline and related monomers with a bisphenol under aromatic nucleophilic substitution reaction conditions. A method of manufacture includes contacting a substituted or unsubstituted quinoxaline having replaceable groups at the 2,3 positions with a bisphenol or a bisphenol derivative under aromatic nucleophilic substitution reaction conditions. The resulting polyetherquinoxalines contain quinoxaline groups joined by ether linkages at the 2 and 3 positions of the quinoxaline groups. In one example, the polyetherquinoxaline has a formula represented as | 02-25-2010 |
20100227998 | STRUCTURED ORGANIC FILMS - A structured organic film comprising a plurality of segments and a plurality of linkers arranged as a covalent organic framework, wherein the structured organic film may be a multi-segment thick structured organic film. | 09-09-2010 |
20110003962 | MORPHOLINE-SUBSTITUTED POLY(ARYLENE ETHER) AND METHOD FOR THE PREPARATION THEREOF - A poly(2,6-dimethyl-1,4-phenylene ether) prepared using a morpholine-containing polymerization catalyst has a monomodal molecular weight distribution with a reduced content of very high molecular weight species. It also exhibits increased morpholine incorporation in the high molecular weight fraction. Compared to commercially available poly(2,6-dimethyl-1,4-phenylene ether) prepared using a di-n-butylamine-containing polymerization catalyst, the poly(2,6-dimethyl-1,4-phenylene ether) of the invention exhibits reduced odor. Compared to other poly(2,6-dimethyl-1,4-phenylene ether) prepared using a morpholine-containing polymerization catalyst, the poly(2,6-dimethyl-1,4-phenylene ether) of the invention exhibits improved molecular weight build during compounding and improved compatibilization with polyamides. | 01-06-2011 |
20110034661 | NOVEL METHOD FOR PRODUCING POLYPHENYLENE ETHER - Disclosed is a method for producing a polyphenylene ether, which comprises a step of preparing a polymerization solution composed of 10-25 parts by mass of a phenolic compound (M) and 75-90 parts by mass of an aromatic solvent (A) with the total of the compound and the solvent being 100 parts by mass, and 0.1-10 parts by mass of a catalyst (C) containing a metal salt; a step of performing an oxidative polymerization of the phenolic compound (M) by passing an oxygen-containing gas through the polymerization solution; a step of stopping the polymerization by mixing an aqueous chelating agent solution into the polymerization solution; a step of subjecting a diphenoquinone compound produced as a by-product to a quinone binding process or removal by reduction; and a step of obtaining a polyphenylene ether by separating the aqueous phase through liquid-liquid separation. In the method for producing a polyphenylene ether, 0.001-0.004 part by weight of an ion catalyst (D) is added into the polymerization solution before the liquid-liquid separation. | 02-10-2011 |
20150299541 | POLYMERIZABLE COMPOSITION INCLUDING A BENZOXAZINE AND AN ACID-FORMING PEROXIDE CATALYST, ARTICLE, AND METHOD - A polymerizable composition, articles, and methods are provided, wherein the polymerizable composition includes a benzoxazine, an acid-forming peroxide catalyst and optionally a film-forming polymer, a co-catalyst, a curative, or a combination thereof. | 10-22-2015 |