U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Famous Patents

The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 548/521 - Double bond between ring carbons in each of the two nitrogen containing hetero rings (e.g., bis-maleimides, etc.)


Subclass of Class 548 - Organic compounds -- part of the class 532-570 series
Definition: Compounds wherein there is a double bond between ring carbons
No. of patents: 123
Last issue date: 02/28/2012


1        
NumberTitleIssue Date
8124791Active energy ray curable liquid composition and liquid cartridge
The invention provides an active energy ray curable liquid composition containing a compound represented by a general formula (I): wherein A is a hydrogen atom or a monovalent organic residue which may be substituted, R
02/28/2012
8088932Pentaaryldiamine-containing bismaleimide compound and method of producing the compound
Provided is a pentaaryldiamine-containing bismaleimide compound of Formula (I): wherein Ar1 to Ar5 are independently C6-C12 aryl; and Ar4 and Ar5 are optiona...
01/03/2012
7255927Laminate composition
This invention concerns a thermosetting resin system that is useful in the manufacture of high performance prepreg, laminate and composite materials as well as, prepregs, laminates and composites made from the thermosetting resin composition. ...
08/14/2007
7026370Water compatible energy curable compositions containing malemide derivatives
A method for controlling the cure rate of a water compatible non emulsion, non dispersing, actinic radiation curable composition containing a maleimide derivative ...
04/11/2006
7018809Expression of functional antibody fragments
Methods for the high yield production of antibody Fv-containing polypeptides, especially Fab′ and F(ab′)2 antibody fragments are provided. Expression of heavy and light chain Fv in a microbial secretory system is followed by recovery of Fv from the pe...
03/28/2006
6962686Cell-specific gene delivery vehicles
A delivery vehicle is described that is capable of being specifically bound to and taken into targeted cells, delivering numerous physiological agents, particularly paramagnetic ions for magnetic resonance imaging (MRI) of the cells. The delivery vehicle comprises a...
11/08/2005
6960636Thermosetting resin compositions containing maleimide and/or vinyl compounds
In accordance with the present invention, there are provided novel thermosetting resin compositions which do not require solvent to provide a system having suitable viscosity for convenient handling. Invention compositions have the benefit of undergoing rapid cure. ...
11/01/2005
6960667Fluorescent maleimides and uses thereof
The present invention is directed to maleimides and preparation of compounds of the formula I wherein R1 and R2 independently from each other stand for
11/01/2005
6939940Liquid crystalline thermosets from ester, ester-imide, and ester-amide oligomers
Main chain thermotropic liquid crystal esters, ester-imides, and ester-amides were prepared from AA, BB, and AB type monomeric materials and were end-capped with phenylacetylene, phenylmaleimide, or nadimide reactive end-groups. The resulting reactive end-capped liq...
09/06/2005
6916856Thermosetting resin compositions containing maleimide and/or vinyl compounds
In accordance with the present invention, there are provided novel thermosetting resin compositions which do not require solvent to provide a system having suitable viscosity for convenient handling. Invention compositions have the benefit of undergoing rapid cure. ...
07/12/2005
6716992Cycloaliphatic epoxy compounds containing styrenic, cinnamyl, or maleimide functionality
A curable composition comprises a compound having at least one epoxy group and at least one maleimide, styrenic or cinnamyl group per molecule. A representative compound has the structure in which Z′ and Z are any mono...
04/06/2004
6693202Muscarinic receptor antagonists
Disclosed are multibinding compounds which are muscarinic receptor antagonists. The multibinding compounds of this invention containing from 2 to 10 ligands covalently attached to one or more linkers. Each ligand is, independently of each other, a muscari...
02/17/2004
6603035Method for producing high purity cyanate
Provided is a method for producing high purity cyanate derived from a phenol compound represented by the following formula (I): ##STR1## in the formula, each of A independently represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, X rep...
08/05/2003
6508957Fluorescent maleimides and uses thereof
The present invention relates to methods for using a maleimide of formula (I) ##STR1## with the proviso that R1 and R2 do not simultaneously stand for phenyl or a maleimide of formula Ia ##STR2## as UV fluorescent material for v...
01/21/2003
6172239Substituted 1-phenyl-3-pyrazolecarboxamides active on neurotensin receptors, their preparation and pharamaceutical compositions containing them
The invention relates to compounds of the formula ##STR1## The compounds have agreat affinity for the neurotensin receptors....
01/09/2001
6169186Bismaleimides comprising mesogenic groups
The invention relates to bismaleimides comprising mesogenic groups which consist, corresponding to (I), of two reactive terminal maleimide groups which are linked via linear or singly alkyl-substituted alkylene chains A, which are linked to an aromatic me...
01/02/2001
6153662Aromatic maleimides and methods of using the same
Aromatic maleimides and methods using the same are disclosed. Polymerization of compositions which include the compounds of the invention may be activated by irradiating the composition with radiation....
11/28/2000
6063828Underfill encapsulant compositions for use in electronic devices
A curable underfill encapsulant composition, suitable for use in semiconductor packaging, comprises one or more mono- or polyfunctional maleimide compounds, or one or more mono- or polyfunctional vinyl compounds other than maleimide compounds, or a combin...
05/16/2000
6057342Amidinophenyl-pyrrolidines, -pyrrolines, and -isoxazolidines and derivatives thereof
The present application describes amidinophenyl-pyrrolidines, -pyrrolines, and -isoxazolidines and derivatives thereof of formula I: ##STR1## or pharmaceutically acceptable salt forms thereof, wherein one of D and D' may be C(.dbd.NH)NH2 a...
05/02/2000
6017943Hemoglobin crosslinkers
The present invention provides a class of compounds having the formula: Y--R--CH2 --CH2 --[O--CH2 --CH2 ]n --R'--Y' wherein n is an integer from about 5 to about 200; R is carbamate, urea, or amide; R' is carba...
01/25/2000
5985815Bleach activators
New compounds useful as bleach activators as well as new percarboxylic acids, which may be formed as intermediates upon reaction of such activators with peroxygen bleach source in aqueous solution, include nitrogen-containing heterocyclic groups. Preferre...
11/16/1999
5976783Bis-maleimido cross-linking agents
Formation of an intramolecular cross-link in enzyme donor polypeptide fragments of ଲ-galactosidase, thereby forming a cyclic enzyme donor which is hindered from complementation with an enzyme acceptor fragment to form active of ଲ-galactosidase...
11/02/1999
5968640Conductive, thermally stable oligomers
The morphology of multidimensional, thermally stable oligomers is combined with the inclusion of charge carrier linkages within the polymer arms to produce thermally stable advanced composites from cured oligomers that are conductive or semiconductive if ...
10/19/1999
5965579Substituted 1-phenyl-3-pyrazolecarboxamides active on neurotensin receptors, their preparation and pharmaceutical compositions containing them
The invention relates to compounds of the formula: ##STR1## Compounds of the above formula have a great affinity for the neurotensin receptors....
10/12/1999
5948922Compounds with substituted cyclic hydrocarbon moieties linked by secondary or tertiary oxycarbonyl containing moiety providing reworkable cured thermosets
Compounds containing two cyclic hydrocarbon moieties which are substituted to provide crosslinking functionality and which are linked to each other by secondary or tertiary oxycarbonyl containing moiety are basis for compositions which are cured to provid...
09/07/1999
5939449Substituted 1-phenyl-3-pyrazolecarboxamides active on neurotensin receptors, their preparation and pharmaceutical compositions containing them
The invention relates to compounds of the formula: ##STR1## The compounds have great affinity for the neurotensin receptors....
08/17/1999
5919923Meso-substituted tripyrrane compounds, compositions, and methods for making and using the same
The invention provides for tripyrrane compounds of the formula ##STR1## wherein: each Q represents, typically, an alkyl group, cycloalkyl group, aryl group, or a heteroaryl group; and each R represents hydrogen, an alkyl group, alcohol group, or a ca...
07/06/1999
5849932Bismaleimide compound and process for producing the same
A novel bismaleimide compound having the following formula: ##STR1## is synthesized from 1,3-bis(aminomethyl)cyclohexane and maleic anhydride, and is readily soluble in a variety of ordinary low boiling point organic solvents....
12/15/1998
5750725Hemoglobin crosslinkers
The present invention provides a class of compounds having the formula: Y--R--CH2 --CH2 --›O--CH2 --CH2 !n --R'--Y' wherein n is an integer from about 5 to about 200; R is carbamate, urea, or amide; R' is carb...
05/12/1998
5635593Bradykinin antagonists
A brandykinin antagonist of the formula: X(BKA)n wherein BKA is the peptide chain of a bradykinin antagonist peptide, X is a linking group and n is a whole number greater than 1. The BKA substituents may be the same or different. Monomeric antagonis...
06/03/1997
5602205N-(substituted) maleimides and compositions incorporating the same
Novel polyfunctional maleimides as well as novel compositions based on mono- and polyfunctional maleimides are provided. Also provided are heat resistance resin compositions and curable compositions incorporating the same. The monofunctional maleimide is ...
02/11/1997
5585484Hemoglobin crosslinkers
The present invention provides a class of compounds having the formula: Y--R--CH2 --CH2 --[O--CH2 --CH2 ]n --R'--y' wherein n is an integer from about 5 to about 200; R is carbamate, urea, or amide; R' is carba...
12/17/1996
5525704Resin forming compositions
Disclosed is an aromatic diamine compound represented by the formula (I) ##STR1## wherein R is H or CH3. Also disclosed is a bismaleimide compound represented by the formula (IV) ##STR2## wherein R is H or CH3, A resin form...
06/11/1996
5463076Method of making multidimensional oligomers
Multidimensional oligomers of the present invention are surprisingly useful for advanced composites because each generally has a use temperature greatly in excess of its curing temperature. The oligomers have essentially no arms, and comprise crosslinking...
10/31/1995
5444165Unsaturated imide compounds containing alicyclic structure, process for producing the same and intermediate therefor
An unsaturated imide compound represented by formula (1): ##STR1## wherein Q is an alicyclic structure-containing hydrocarbon group having 4-20 carbon atoms; each of R1, R2, R3, R4, Ri and R...
08/22/1995
5405918(Poly)sulfide containing polycitraconimides and polyitaconimides
Novel polysulfide-containing polycitraconimides and polyitaconimides are disclosed. Further, a process for the sulfur-vulcanization of rubber using these novel compounds is also disclosed. Also, a sulfur-vulcanized rubber product and articles of manufactu...
04/11/1995
5399715Polyamino oligomers and polymaleimide compounds
The polyamino oligomers of this invention are obtained by reacting diisopropenylbenzenes or bis(଱-hydroxyisopropyl)benzenes and anilines in the presence of an acid catalyst and characterized by the recurring unit having an indane skeleton. These pol...
03/21/1995
5393887Bisimide compositions
A mixed bisimide having the formula: ##STR1## wherein D, A and Z are as defined in the specification, produced by reacting a diamine with an ethylenically unsaturated dicarboxylic acid anhydride and a halogenated compound containing an anhydride grou...
02/28/1995
5380873Homobifunctional agents for coupling enzymes and the like to antibodies and the like
A coupling agent useful in conducting immunoassays, particularly assays for B12, is disclosed. The coupling agent has the formula ##STR1## Z and Z' can be the same or different and each is ##STR2## k, m and n are integers from 1 to 10, X is an a...
01/10/1995
5371236Non-crystalline ether-imide type high purity bismaleimide composition and process for producing the same
A non-crystalline ether-imide type high purity bismaleimide composition represented by formula (I): ##STR1## wherein R1, R2, R3, and R4 each represent a hydrogen atom, a halogen atom, or an alkyl group havi...
12/06/1994
1        
 
Sign InRegister
Username  
Password   
forgot password?