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Class 528/344 - Bridged- or fused-ring-containing reactant other than as anhydride fused to a nonfused- or bridged-ring system


Subclass of Class 528 - Synthetic resins or natural rubbers -- part of the class 520 series
Definition: Subject matter wherein at least one reactant contains a
No. of patents: 127
Last issue date: 05/29/2007


1        
NumberTitleIssue Date
7224532Optical uses diamondoid-containing materials
Novel optical devices based on diamondoid-containing materials are disclosed. Materials that may be fabricated from diamondoids included diamondoid nucleated CVD films, diamondoid-containing CVD films, molecular crystals, and polymerized materials. Devices that may ...
05/29/2007
7060783Diamine compound polymer having condensed aromatic group
The present invention provides a diamine compound polymer and a method for producing the diamine compound polymer. The diamine compound polymer of the present invention has a condensed aromatic group represented by the following formulae (1-1) and (1-2).
06/13/2006
7045241Proton conductive solid polymer electrolyte and method for producing the same
A monomer to produce polybenzimidazole is dissolved in polyphosphoric acid. For example, polysulfated phenylene sulfonic acid (acidic group-possessing polymer) is further dissolved in this solution. In this procedure, the acidic group-possessing polymer and the mono...
05/16/2006
6979719Coating composition comprising a compound comprising at least one bicyclo-orthoester group and at least one other functional group
The invention pertains to a coating composition comprising a compound comprising at least one bicyclo-orthoester group and at least one other functional group. The invention also comprises a process for curing the present coating composition. Further, a process for ...
12/27/2005
6936682Polyamide
A polyamide characterized in that the polyamide is obtained by thermal polycondensation of (a) dicarboxylic acid components comprising 10 to 80% by mole in total carboxylic acid components of 1,4-cyclohexanedicarboxylic acid having a trans/cis molar ratio of 50/50 t...
08/30/2005
6858700Polymerizable higher diamondoid derivatives
Higher diamondoid derivatives capable of taking part in polymerization reactions are disclosed as well as intermediates to these derivatives, polymers formed from these derivatives and methods for preparing the polymers. ...
02/22/2005
6824949Polybenzoxazole precursors, photoresist solution, polybenzoxazole, and process for preparing a polybenzoxazole precursor
There are disclosed polybenzoxazole precursors which can be processed by centrifugal techniques, which can be cyclized to polybenzoxazoles on substrates without difficulty, and which after cyclization to polybenzoxazoles exhibit a high temperature stability. In part...
11/30/2004
6423304Dimerized fatty acid based polyamides useful for clear candle and gel applications
Blooming and/or syneresis in gel formulations can be reduced or eliminated by adding to an organic mixture an effective amount of a polyamide gelling agent having a softening point of less than about 105° C. wherein the polyamide is the reaction product ...
07/23/2002
6414103Coating powders comprising macrocyclic oligomers
A coating powder comprising a macrocyclic oligomer and a ring-opening polymerization agent is applied to an article, fused, and converted to a linear polymer at a temperature of from about 160 to about 400° C. The powder has the low melt viscosity and fr...
07/02/2002
6392009Extended-rod benzobisazole polymers
Benzobisazole polymers having repeating units of the formula ##STR1## wherein Z is ##STR2## wherein X is --S--, --O-- or --NH--....
05/21/2002
6353083Fluorene copolymers and devices made therefrom
This invention relates to: (a) fluorene copolymers comprising at least 10% (by residual monomeric units) of 9-substituted and/or 9,9-disubstituted fluorene moieties and at least two other monomeric units containing delocalized p-electrons, (b) polymer ble...
03/05/2002
6150496Inherently light-and-heat-stabilized polyamide and method of making the same
An inherently light- and heat-stabilized polyamide has at least one piperidine compound bonded to the backbone polymer chain and at least one 4-amino-2,2,6,6-tetramethylpiperidine compound bonded to the backbone polymer chain. The inherently light- and he...
11/21/2000
6111055Ester-terminated polyamide gels
An ester-terminated dimer acid-based polyamide may be blended with a solvent to form a gel. The solvent may be flammable, and a wick may be added to the resulting gel so as to form a candle. Depending on the composition, the candle may be formed into a fr...
08/29/2000
5990270Amorphous, transparent polyamide compositions and articles having reduced flammability
A polyamide composition which is amorphous and transparent, which has reduced flammability, and which has reduced migration of flame-retardant additive so that it is film-free, includes at least one polyamide which contains cycloaliphatic monomer units an...
11/23/1999
5891987Copolyamide composition with a high glass transition temperature
A copolyamide composition prepared from hexamethylene diamine and either mixtures of adipic acid and terephthalic acid, or mixtures of adipic acid, terephthalic acid and isophthalic acid, has a melting point below 320° C., a glass transition temperature ...
04/06/1999
5773558Transparent, colorless, amorphous polyamides and molded articles
Colorless, amorphous polyamide, or blends or alloys thereof, and the molded articles with high alternate bending strengths are made available; they are preferably made up of unbranched aliphatic diamines and cycloaliphatic dicarboxylic acids, and have hig...
06/30/1998
5688895Liquid crystalline poly(ester-amides)
Disclosed herein are thermotropic liquid crystalline poly(ester-amides) containing repeat units derived from alipatic diamines and other monomers, such as aromatic diols, aromatic dicarboxylic acids, aromatic hydroxycarboxylic acids, and optionally alipha...
11/18/1997
5670603Polymers exhibiting nonlinear optical properties
This invention relates to polymers having non-linear optical properties which polymers include fluorene moieties having at least one electron accepting group and at least one electon donating group substituted to different phenyl rings of the fluorene moi...
09/23/1997
5646234Production of fibers or films using specific forming solutions and the fibers of films obtainable thereby
A process for producing fibers or films by the steps of: a) preparing an aromatic polyamide by polycondensation of dicarbonyl dihalides or mixtures thereof with at least two diamines in N-alkyllactams as a solvent, the polycondensation being of at least 90 mol...
07/08/1997
5604292Polymers with electrical and non-linear optical properties
Novel conjugated amino substituted phenylene polymers are disclosed having on-linear optical properties, and which can be converted to electrically conductive polymers. Such polymers are produced by reacting a novel bis-cycloalkylene sulfonium salt of 2,5,...
02/18/1997
5599623Aramid composition
An aramid composition consisting essentially of repeat units derived from p-phenylenediamine, terephthalic acid, 3,3'-bibenzoic acid, and optionally chloroterephthalic acid, is disclosed. The aramids are especially useful for fibers, which after drawing u...
02/04/1997
5587450Process for producing aromatic polyamide film
A process for producing an aromatic polyamide film, which comprises the steps of: (a) forming a thin layer of an optically isotropic dope in which an aromatic polyamide is dissolved in a polar amide, (b) immersing the thin layer dope of aromatic polyamide...
12/24/1996
5571891Aromatic copolyamides, production thereof, formed structures and production thereof
Aromatic copolyamides, production thereof, formed structures and production thereof Described are aromatic copolyamides comprising the structural repeat units of the formulae I, II and III ##STR1## where Ar1, Ar2, Ar3...
11/05/1996
5552508Difunctional bitricyclodecatriene monomers
Novel difunctionalized cyclobutabenzene monomers of the general formula: ##STR1## wherein Z can be hydrogens or a cyclobutane ring; and X and Y are carboxyl, amino, alcohol, isocyanate, acid halide, or bis-acyl halide groups. Exemplary difunctional b...
09/03/1996
5504184Xanthene polymers, and copolymers, and method for making
Xanthene polyesters and polyamides are provided resulting from the reaction of alkylene, cycloaliphatic or aromatic diols or organo diamines with xanthene dicarboxylic esters or xanthene dicarboxylic acid halides. These amorphous, or crystalline film form...
04/02/1996
5498784Phosphonic acid-pendent benzoxazole copolymers
Alcohol-soluble aromatic heterocyclic copolymers having repeating units of the formula: ##STR1## wherein x has a value of 0.05 to 0.50 and y has a value of 1.0-x. These copolymers are useful in the preparation of organic/inorganic hybrid materia...
03/12/1996
5492996Alcohol soluble benzazole polymers
Alcohol-soluble aromatic heterocyclic polymers having repeating units of the formula: ##STR1## wherein X is --O-- or --S--, and R is selected from the group consisting of: ##STR2## and R' is selected from the group consisting of alkyl havin...
02/20/1996
5493005Hydroxy-pendent benzoxazole copolymers
Alcohol-soluble, aromatic heterocyclic copolymers having repeating units of the formula: ##STR1## wherein x has a value of 0.10 to 0.90 and y has a value of 1.0-x. These copolymers are useful in the preparation of organic/inorganic hybrid materi...
02/20/1996
5432255Preparation of fiber-forming meta-aramids
A process is described for preparing directly spinnable polymer solutions containing as fiber-forming substance polymers containing at least 95 mol %, based on the polymer, of the recurring structural unit of the formula I [--CO--R1 --CO--NH--R...
07/11/1995
5418312Difunctional cyclobutabenzene monomers
Novel difucntionalized cyclobutabenzene monomers of the general formula: ##STR1## wherein Z can be hydrogens or a cyclobutane ring; and X and Y are carboxyl, amino, alcohol, isocyanate, acid halide, or bis-acyl fluoride groups. In a particularly pref...
05/23/1995
5362846High melting point crystalline polyamides
Copolyamides having high crystallinity over the whole composition range, a melting enthalpy ƊH>3.5 cal/g and a melting point TM higher than 270° C. and articles manufactured therefrom are disclosed, said copolyamides comprising, by moles: a) ...
11/08/1994
5334693Aramid composition
Aramids having repeat units derived from p-phenylenediamine, 4,4'-bis(3-aminophenoxy)biphenyl and terephthalic acid. These aramids have good strength properties, particularly after drawing, and good high temperature properties. The aramids are useful for ...
08/02/1994
5331081Use of fluorinated aromatic polyamides as orientation layer for liquid-crystal switching and display devices
Use of fluorinated aromatic polyamides as orientation layer for liquid crystal switching and display devices Use of substituted aromatic polyamides as orientation layer in liquid crystal switching and display elements is described, in which the polyamides...
07/19/1994
5320886Hydrophilic crosslinking monomers and polymers made therefrom
This invention relates primarily to organofunctional monomers, predominantly dimethacrylates and/or diacrylates containing one or more (predominantly two carboxyl groups, with moieties that provide sufficient affinity with water to allow any desired amoun...
06/14/1994
5310861Drawable high tensile strength aramids
Aramids, which in the drawn state have high tensile strengths tensile elongations, and tensile moduli, are made from units derived from p-phenylenediamine, terephthalic acid, a substituted terephthalic acid, and 4,4'-bibenzoic acid or 2,6-naphthalene dica...
05/10/1994
5300620Heat-resistant adhesive and method of adhesion by using adhesive
The heat resistant adhesive of the invention comprises polyamic acid and/or polyimide which are prepared by using 1,3-bis(3-aminophenoxy)benzene as an aromatic diamine component and 3,3',4,4'-biphenyltetracarboxylic dianhydride, 3,3',4,4'-benzophenonetetr...
04/05/1994
5290907Automatic copolyamide
There are described aromatic copolyamides which are soluble in organic polyamide solvents and which consist essentially of recurring structural units of the formulae Ia, Ib and Ic on the one hand and Ia, Ib and Ie on the other [--OC--R1 --CO--N...
03/01/1994
5288793Filled molding composition comprising polyamide having terephthalamide and naphthalamide units
Fiber- or particulate-filled polyphthalamide molding compositions, wherein the polyphthalamide comprises recurring units obtainable from terephthalic acid, 2,6-naphthalene dicarboxylic acid, aliphatic diamine and, optionally, isophthalic acid, exhibit a d...
02/22/1994
5286839Crystallizable copolyamide having terephthalamide and naphthalamide units
Polyphthalamides having a useful combination of thermal and mechanical properties and excellent solvent resistance, particularly to alcohols, comprise recurring aliphatic terephthalamide and 2,6-naphthalene dicarboxylamide units and, optionally, isophthal...
02/15/1994
5276131Preparation of polyamide from arylene cyclic diamide
This invention relates to cyclic diamides that are readily polymerized to form poly(terephthalamides). The resulting poly(terephthalamides) have high crystallinity, high temperature capabilities, dimensional stability, low moisture sensitivity, and solven...
01/04/1994
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