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Class Information
Number: 162/157.3
Name: Paper making and fiber liberation > Processes and products > Synthetic fiber (including chemically modified cellulose) > Synthetic resin > Polyamide, polyester or polyurethane
Description: Processes and products in which the fibers consist of synthetic resin containing recurring amides, ester or carbonic acid half amides, half ester, i.e., urethane groups in the main polymer chain.










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8444815 Pulp comprising polypyridobisimidazole and other polymers and methods of making same May. 21, 2013
8444817 Polyareneazole/thermoset pulp and methods of making same May. 21, 2013
8444816 Polyareneazole/thermoplastic pulp and methods of making same May. 21, 2013
8404082 Polyareneazole/wood pulp and methods of making same Mar. 26, 2013
8211272 Para-aramid pulp including meta-aramid fibrids and processes of making same Jul. 3, 2012
8168039 Electroconductive aramid paper and tape made therefrom May. 1, 2012
7967952 Durable paper Jun. 28, 2011
7967941 Adhesive-free aramid-polyester laminate, method of manufacturing the same and apparatus for manufacturing the same Jun. 28, 2011
7927461 Method for manufacturing an aramid paper with an applied plasma treatment Apr. 19, 2011
7850821 Household thin paper Dec. 14, 2010
7803247 Papers containing floc derived from diamino diphenyl sulfone Sep. 28, 2010
7771809 Shaped honeycomb Aug. 10, 2010
7771810 Honeycomb from paper having a high melt point thermoplastic fiber Aug. 10, 2010
7771811 Honeycomb from controlled porosity paper Aug. 10, 2010
7754050 Fibrous structures comprising a tuft Jul. 13, 2010
7744724 Polyareneazole/thermoplastic pulp and methods of making same Jun. 29, 2010
7740741 Para-aramid pulp including meta-aramid fibrids and processes of making same Jun. 22, 2010
7727356 Polyareneazole/wood pulp and methods of making same Jun. 1, 2010
7727357 Polyareneazole/thermoset pulp and methods of making same Jun. 1, 2010
7727358 Pulp comprising polypyridobisimidazole and other polymers and methods of making same Jun. 1, 2010
7686920 Fibrillated polypyridobisimidazole floc Mar. 30, 2010
7666274 Durable paper Feb. 23, 2010
7629047 Aramid fibrils Dec. 8, 2009
7470639 Production of wetlaid-spunbond laminate membrane support Dec. 30, 2008
7455750 Meta- and para-aramid pulp and processes of making same Nov. 25, 2008
7396436 Unitary fibrous structure comprising randomly distributed cellulosic and non-randomly distributed synthetic fibers Jul. 8, 2008
7272915 Shingle and mat tensile strength with urea formaldehyde resin modifier Sep. 25, 2007
7214293 Process for making a unitary fibrous structure comprising cellulosic and synthetic fibers May. 8, 2007
7175741 Reducing odor in absorbent products Feb. 13, 2007
7112259 High temperature paper Sep. 26, 2006
7067038 Process for making unitary fibrous structure comprising randomly distributed cellulosic fibers and non-randomly distributed synthetic fibers Jun. 27, 2006
7052580 Unitary fibrous structure comprising cellulosic and synthetic fibers May. 30, 2006
7051883 Wetlaid-spunbond laminate membrane support May. 30, 2006
7026033 Heat-resistant synthetic fiber sheet Apr. 11, 2006
6998019 Glazed paper webs Feb. 14, 2006
6942757 Process for preparing para-aromatic polyamide paper Sep. 13, 2005
6919026 Semipermeable membrane support and process of preparation thereof Jul. 19, 2005
6908983 Synthesis of high solids resins from amine terminated polyamides Jun. 21, 2005
6890636 Thermally stable, non-woven, fibrous paper, derivatives thereof, and methods for manufacturing the same May. 10, 2005
6843887 Low hygroscopic paper and method of producing the same Jan. 18, 2005
6838401 Heat-resistant fibrous paper Jan. 4, 2005
6793772 Use of melamine resin fibers and insulating materials based on melamine resin fibers and polyalkylene terephthalate fibers Sep. 21, 2004
6752906 Loudspeaker and method for the preparation thereof Jun. 22, 2004
6706147 Process for making fiber mats for materials of construction having improved tear strength Mar. 16, 2004
6677427 Enzyme-catalyzed polyamides and compositions and processes of preparing and using the same Jan. 13, 2004
6554962 Loudspeaker diaphragm Apr. 29, 2003
6551456 Process to prepare synthetic fiber paper Apr. 22, 2003
6537424 High temperature paper Mar. 25, 2003
6517676 Recyclable thermoplastic moldable nonwoven liner for office partition and method for its manufacture Feb. 11, 2003
6475340 Solid phase extraction membrane Nov. 5, 2002

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