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Class Information
Number: 528/331
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Synthetic resins (class 520, subclass 1) > From carboxylic acid or derivative thereof > From imide- or lactam-containing compound, or from an amino-nitrogen containing carboxylic acid, or derivative of an amino-nitrogen-containing carboxylic acid > Aryl-containing reactant
Description: Subject matter wherein at least one reactant contains an aromatic ring.










Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8653225 Polyamide compound Feb. 18, 2014
8642716 Branched polyamides comprising unsaturated ends Feb. 4, 2014
8603634 End-capped poly(ester amide) copolymers Dec. 10, 2013
8574468 Benzo-fused heterocyclic chromophores for nonlinear optical devices Nov. 5, 2013
8574467 Benzo-fused heterocyclic chromophores for nonlinear optical devices Nov. 5, 2013
8487069 Liquid crystal photo-alignment agent, liquid crystal photo-alignment layer manufactured using the same, and liquid crystal display device including the liquid crystal photo-alignment layer Jul. 16, 2013
8445603 Linear polyesteramides from aminophenolic esters May. 21, 2013
8420862 Process for the preparation of highly pure monomers for polybenzimidazole materials Apr. 16, 2013
8349991 Amphiphilic polymers and methods of use thereof Jan. 8, 2013
8309642 Method for dissolving aramid polymer in sulfuric acid using a double shaft kneader Nov. 13, 2012
8268937 Crosslinkable aramid copolymers Sep. 18, 2012
8106142 Polyacetylinic oligomers Jan. 31, 2012
8063168 Oligomers with di-phenylethynyl endcaps Nov. 22, 2011
7932348 Fluorine-containing polymerizable monomer and polymer compound using same Apr. 26, 2011
7825280 Fluorine-containing polymerizable monomer and polymer compound using same Nov. 2, 2010
7556876 Polybenzimidazole-benzamide copolymer, process for preparing the same, electrolyte membrane prepared therefrom and process for preparing the same Jul. 7, 2009
7388048 Flexible semiaromatic polyamides with a low moisture uptake Jun. 17, 2008
7381788 Method for continuous production of polyamide Jun. 3, 2008
7279543 Anti-bacterial polymer and method for the preparation thereof, anti-bacterial polymer film and method for the preparation thereof, and article having such a film on the surface thereof Oct. 9, 2007
7211643 Electroactive fluorene copolymers and devices made with such polymers May. 1, 2007
7053169 Polyamide molding compounds for producing optical lenses May. 30, 2006
6998464 Method for producing a solution consisting of a polymer containing recurrent azole units, solutions produced according to said method and use of the same Feb. 14, 2006
6987163 Modified polybenzimidazole (PBI) membranes for enhanced polymer electrochemical cells Jan. 17, 2006
6680364 Water dispersible polyamides with ethylenically unsaturated ends Jan. 20, 2004
6593449 Method for producing polybenzimidazole sintered compact Jul. 15, 2003
6586555 Processes of preparing condensed polymers with polycarboxylic acids and polyamines Jul. 1, 2003
6552146 Composition comprising polymers having a star structure, the polymers, and their use Apr. 22, 2003
6531570 Accelerator for the production of polyamides from aminonitriles Mar. 11, 2003
6414103 Coating powders comprising macrocyclic oligomers Jul. 2, 2002
6353083 Fluorene copolymers and devices made therefrom Mar. 5, 2002
6271339 Prepolymers having maleimide functions the process for preparing them and their uses Aug. 7, 2001
6222006 Wet strength thermosetting resin formulations and polyaminamide polymers suitable for use in the manufacture of paper products Apr. 24, 2001
6197920 Formulation for the production of 1, 3-bis (4-aminophenoxy) naphthalene and its polymer Mar. 6, 2001
6194538 Process for producing polyamides from aminonitriles Feb. 27, 2001
6107438 Method of producing polyamide resin Aug. 22, 2000
6103862 Alignment film material for a liquid crystal cell and a method for preparing the same Aug. 15, 2000
6072023 Polyamides from dimer and trimer acid esters and methods for their preparation Jun. 6, 2000
6043336 Electrically conducting dendrimers Mar. 28, 2000
6025113 Photosensitve polymide precursor and its use for pattern formation Feb. 15, 2000
6011131 Process for the preparation of polyamides Jan. 4, 2000
5965687 Method of preparing polymers with low melt viscosity Oct. 12, 1999
5965689 Electrical and electronic components made of a polyamide composition Oct. 12, 1999
5959069 H-shaped polyamides Sep. 28, 1999
5932688 Polybenzimidazole material with low metallic concentration and a process for production thereof Aug. 3, 1999
5917001 Lens for lighting systems Jun. 29, 1999
5917003 Process for producing polymers of .alpha.,.omega.-unsaturated conjugated compounds, and high molecular weight conjugated polymers thus obtainable Jun. 29, 1999
5917004 Weather-resistant polyamides and method of their production Jun. 29, 1999
5902876 Polybenzimidazole compounds in solution and a process for the preparation thereof May. 11, 1999
5883220 Redox copolymers and their use in preparing mixed conduction materials Mar. 16, 1999
5844069 Copolymers having magnetic properties Dec. 1, 1998

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