Polymer Processing Research Institute Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
D01D MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES, OR RIBBONS522
 
  
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 4121
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM4153
 
  
 
D04H MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL 328
 
  
 
B26F PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING 115
 
  
 
B29K INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS 130
 
  
 
C09J ADHESIVES; ADHESIVE PROCESSES IN GENERAL 154
 
  
 
D02G CRIMPING OR CURLING FIBRES, FILAMENTS, YARNS, OR THREADS; YARNS OR THREADS128
 
  
 
D06C FINISHING, DRESSING, TENTERING, OR STRETCHING TEXTILE FABRICS 111
 
  
 
D06M TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS 125

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6984350 Method of and apparatus for manufacturing a web having filaments aligned in a transverse directionFeb 26, 02Jan 10, 06[D01D, D04H]
6877971 Apparatus for producing a transversely aligned web in which filaments spun at high rate are aligned in the transverse directionOct 14, 02Apr 12, 05[D01D]
6637128 Heating apparatus for a transversely stretched nonwoven fabricDec 04, 02Oct 28, 03[B29C, F26B]
6524521 Method of and apparatus for manufacturing longitudinally aligned nonwoven fabricAug 24, 00Feb 25, 03[D01D, D04H]
6511625 Transversely stretched nonwoven fabric with high tensile strength stretched seven times wider or more in transverse directionAug 23, 00Jan 28, 03[B29C]
6495078 Transversely aligned web in which filaments spun at high rate aligned in the transverse directionSep 29, 00Dec 17, 02[D01D, D06M, D04H]
6132661 Longitudinally stretched nonwoven fabric and method for producing the sameNov 17, 97Oct 17, 00[D01D]
6063492 Adhesive tape and its base fabricJul 24, 97May 16, 00[C09J]
5826314 Device for transversely stretching webDec 03, 97Oct 27, 98[D06C]
5702657 Method for the continuous production of a polyethylene material having high strength and high modulus of elasticityDec 26, 95Dec 30, 97[B29C]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2004/0166,756 Composite sheet having elasticity, elastic web made from thermoplastic elastomer, and method and apparatus of manufacturing the sameAbandonedFeb 23, 04Aug 26, 04[B32B, D04H]
6673186 Laminated structural body having unidirectionally arranged strands sandwiched between two web layers, and method of and apparatus for efficiently manufacturing such laminated structural bodyExpiredJun 01, 01Jan 06, 04[D04H]
6605553 Tow multiaxial non-woven fabricExpiredDec 26, 00Aug 12, 03[D04H]
2003/0003,833 Stretching composite sheet and production method thereforAbandonedJul 11, 02Jan 02, 03[B32B, D04H]
6207273 Process for producing filament and filament assembly composed of thermotropic liquid crystal polymerExpiredJun 07, 99Mar 27, 01[D01F]
6054086 Process of making high-strength yarnsExpiredMar 19, 96Apr 25, 00[D01D, B29C, D01F]
6051175 Process for producing filament and filament assembly composed of thermotropic liquid crystal polymerExpiredMay 03, 95Apr 18, 00[D01D]
6048808 Nonwoven fabric and method of making the sameExpiredJul 06, 98Apr 11, 00[D04H]
5840633 Nonwoven fabric and method of making the sameExpiredSep 17, 96Nov 24, 98[D04H]
5789328 Bulky nonwoven fabric and method for producing the sameExpiredJun 18, 97Aug 04, 98[B32B]
5723388 Prepreg of ultra-high-molecular-weight polyethyleneExpiredJan 07, 97Mar 03, 98[B29C]
5612125 Process for producing prepregExpiredDec 12, 94Mar 18, 97[B29C]
5382773 Apparatus and method for fabricating a perforated web by lightExpiredDec 24, 92Jan 17, 95[B23K]
5307609 Apparatus for wrapping and method thereforExpiredJan 21, 92May 03, 94[B65B]
5300166 Apparatus for manufacturing a web and methodExpiredMar 18, 93Apr 05, 94[B32B]
5287742 Device for detecting defects of webExpiredSep 04, 92Feb 22, 94[G01D]
5265506 Method for fabricating a perforated film and its apparatusExpiredSep 04, 92Nov 30, 93[B26F, B23D]
5259097 Stretching machineExpiredAug 23, 91Nov 09, 93[D06C]
5106555 Process for the continuous production of high-strength and high-modulus polyethylene materialExpiredJul 25, 90Apr 21, 92[B29C]
5106558 Method for continuous preparation of polyethylene material having high strength and high modulus of elasticityExpiredApr 27, 90Apr 21, 92[B29C]

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