CNA HOLDINGS, INC

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 1496
 
 
 
C08K USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS 1286
 
 
 
C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 1199
 
 
 
C07D HETEROCYCLIC COMPOUNDS 5156
 
 
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM4144
 
 
 
B01D SEPARATION 3130
 
 
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 3113
 
 
 
C08J WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER- TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C C08F, C08G or C08H 376
 
 
 
G11B INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER 3133
 
 
 
C09K MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR295

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6258884 Polymeric acetals resistant to mineral depositionMar 23, 93Jul 10, 01[C08K, C08L]
6020432 High density polyester compositionJul 02, 98Feb 01, 00[C08K, C08L]
5965273 Polymeric compositions having a temperature-stable dielectric constantJan 31, 97Oct 12, 99[B32B]
5962122 Liquid crystalline polymer composites having high dielectric constantNov 28, 95Oct 05, 99[B32B, C08K]
5919889 Melt processable poly(ester-amide) capable of forming an anisotropic melt containing an aromatic moiety capable of forming and amide linkageDec 23, 92Jul 06, 99[C08G]
5843562 LCP films having roughened surface and process thereforMay 16, 97Dec 01, 98[C09K]
5824767 Poly(arylene sulfide) compositions having improved processabilityJul 08, 96Oct 20, 98[C08G, C08K, C08L]
5798432 Method of making thermotropic liquid crystalline polymers containing hydroquinoneMar 22, 96Aug 25, 98[C08G]
5767294 Process for the production of trioxane from formaldehydeDec 06, 93Jun 16, 98[C07D]
5762718 Process for reducing black specks in a thermotropic liquid crystal polymer with successive washes of triethylene glycol, ethylene glycol and waterDec 10, 96Jun 09, 98[B08B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6426128 Co-processable multi-layer laminates for forming high strength, haze-free, transparent articles and methods of producing sameExpiredJan 06, 98Jul 30, 02[B32B]
6312772 Multilayer laminate formed from a substantially stretched non-molten wholly aromatic liquid crystalline polymer and non-polyester thermoplastic polymerExpiredOct 20, 97Nov 06, 01[B32B]
6268026 Multilayer laminate formed from a substantially stretched non-molten wholly aromatic liquid crystalline polymer and non-liquid crystalline polyester and method for forming sameExpiredOct 20, 97Jul 31, 01[B32B]
6042902 Adhesives for making multilayer films comprising liquid crystalline polymers and poly(ethylene terephthalate) or polycarbonateExpiredOct 20, 97Mar 28, 00[C09K]
6020414 Method and compositions for toughening polyester resinsExpiredOct 23, 96Feb 01, 00[C08L]
6015524 Adhesives for making multilayer films comprising liquid crystalline polymers and polyethyleneExpiredOct 20, 97Jan 18, 00[B29C]
6013373 Adhesives for making multilayer films comprising liquid crystalline polymer and polypropyleneExpiredOct 20, 97Jan 11, 00[B32B]
5950993 Antivibration support including a central leg, and a motor vehicle including such a supportExpiredNov 19, 97Sep 14, 99[F16F]
5885668 Process for surface modification of an LCP filmExpiredMay 07, 97Mar 23, 99[G02F]
5886066 Thermoplastic polymer composition exhibiting improved wearExpiredJul 17, 97Mar 23, 99[C08L]
5881201 Backlighting lightpipes for display applicationsExpiredMar 11, 97Mar 09, 99[G02B]
5876570 Purification process for cyclic formalsExpiredJan 18, 96Mar 02, 99[C07D, B01D]
5789042 Thin LCP film processExpiredMar 28, 95Aug 04, 98[B23B]
5783624 Transparent polymer composites having a low thermal expansion coefficientExpiredDec 13, 96Jul 21, 98[C08K]
5753145 Polarizer films with high thermal and hygroscopic stabilityExpiredJun 02, 95May 19, 98[C09K, F21V]
5744204 Laminates comprising coextruded liquid crystal polymer films and discardable thermoplastic outside layersExpiredDec 05, 96Apr 28, 98[G02F, B32B]
5738803 Polarizer films comprising wholly aromatic liquid crystalline polymers and dichroic dyesExpiredDec 14, 95Apr 14, 98[C09K, F21V]
5738918 Laminates of liquid crystalline polymeric films for polarizer applicationsExpiredJun 14, 96Apr 14, 98[G02F]
5739193 Polymeric compositions having a temperature-stable dielectric constantExpiredMay 07, 96Apr 14, 98[C08K]
5731380 Elastomeric compositionsExpiredApr 11, 97Mar 24, 98[C08L]

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