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Class Information
Number: 528/379
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Synthetic resins (class 520, subclass 1) > From sulfur-containing reactant > From heterocyclic compound containing a sulfur atom as a ring member > Polymerizing in the presence of a specified material other than a reactant > Material contains a group ia (li, na, k, rb, cs, fr) or group iia metal atom (be, mg, ca, sr, ba, ra)
Description: Subject matter wherein the specified material contains a Group IA (Li, Na, K, Rb, Cs, Fr) or Group IIA (Be, Mg, Ca, Sr, Ba, Ra) metal atom.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8685566 Process to induce polymerization of an organic electronically conductive polymer Apr. 1, 2014
8546518 Polyarylene sulfide and method for producing the same Oct. 1, 2013
8323534 Thermoplastic electrochromic materials Dec. 4, 2012
8298443 Tunable conducting polymer nanostructures Oct. 30, 2012
8211969 Dispersions of carbon nanotubes in copolymer solutions and functional composite materials and coatings therefrom Jul. 3, 2012
8183336 Poly (arylene sulfide) May. 22, 2012
8008427 Soluble phenanthrenyl imidazole for photo-electrical conversion of solar cell Aug. 30, 2011
7893160 Crosslinkable substituted fluorene compounds and conjugated oligomers or polymers based thereon Feb. 22, 2011
7857999 Crosslinked self-doping type electrically conducting polymer, production process thereof, product coated with the polymer and electronic device Dec. 28, 2010
7834106 Living synthesis of conducting polymers including regioregular polymers, polythiophenes, and block copolymers Nov. 16, 2010
7754848 Poly (arylene sulfide) and production process thereof Jul. 13, 2010
7638071 Crosslinked self-doping type electrically conducting polymer, production process thereof, product coated with the polymer and electronic device Dec. 29, 2009
RE40813 Polythiophenes, block copolymers made therefrom, and methods of forming the same Jun. 30, 2009
7442759 Water-soluble polythiophene polymers Oct. 28, 2008
7432339 Inferred water analysis in polyphenylene sulfide production Oct. 7, 2008
7312300 Inferred water analysis in polyphenylene sulfide production Dec. 25, 2007
7294288 Process of preparing regioregular polymers Nov. 13, 2007
7262264 Halogenated thiophene monomer for the preparation of regioregular polythiophenes Aug. 28, 2007
7098294 Polythiophenes, block copolymers made therefrom, and methods of forming the same Aug. 29, 2006
6891017 Fast polymerizable/curable episulfide based composition, polymerization/curing process and optical articles resulting therefrom May. 10, 2005
6627683 Reworkable thermosetting resin compositions and compounds useful therein Sep. 30, 2003
6602974 Polythiophenes, block copolymers made therefrom, and methods of forming the same Aug. 5, 2003
6486298 Diepisulfide based prepolymers and their use in the optical field Nov. 26, 2002
6294245 Method for depositing electrically conducting polymer films via electrochemical deposition of precursor polymers Sep. 25, 2001
6242501 Processes for the recovery of poly(arylene sulfide) Jun. 5, 2001
6166172 Method of forming poly-(3-substituted) thiophenes Dec. 26, 2000
5929202 Method for production of ethylene sulfide/sulfur copolymer and ethylene sulfide/sulfur copolymer Jul. 27, 1999
5804100 Deaggregated electrically conductive polymers and precursors thereof Sep. 8, 1998
5750656 Process for sulfonating or sulfating polymers May. 12, 1998
5621069 Method for preparation of conjugated arylene and hetroarylene vinylene polymers Apr. 15, 1997
5597887 Branched polycarbonate preforms, blow moldable polycarbonate and method for making Jan. 28, 1997
5565517 Synthesis of organic polysulfide polymers Oct. 15, 1996
5384391 Polyarylene sulfide and preparation thereof Jan. 24, 1995
5296579 Arylene sulfide polymers Mar. 22, 1994
5227454 High temperature resistant, benzothiazole-containing polyaryl ethers Jul. 13, 1993
5162470 Polymers with electrical and nonlinear optical properties Nov. 10, 1992
5097008 Preparation of branched polycarbonate from oligomeric cyclic polycarbonate and polyhydric phenol Mar. 17, 1992
4987042 Polythiophenes, process for their preparation and their use Jan. 22, 1991
4972039 Process of crosslinking polycyclic oligomer from tetraphenal Nov. 20, 1990
4959430 Polythiophenes, process for their preparation and their use Sep. 25, 1990
4849502 Method of regulating the polymerization of cyclic polycarbonate with initiator and polyhydric phenol Jul. 18, 1989
4769430 Polypyrrole thiophene Sep. 6, 1988
4766198 Process for making thiophene and furfurane polymers Aug. 23, 1988
4740583 Method for converting cyclic polycarbonate oligomer mixtures to linear polycarbonate, and composition resulting therefrom Apr. 26, 1988
4640748 Polyisothianaphtene, a new conducting polymer Feb. 3, 1987
4605731 Method for preparing linear polycarbonate from cyclic oligomer with aryl carbanion generating catalyst Aug. 12, 1986
4521589 Linear poly(3-alkyl-2,5-thienylene) polymer Jun. 4, 1985
4508639 Polymers containing heterocycles and aromatic nuclei, and conductive organic materials made from such polymers Apr. 2, 1985
4450259 Multifunctional anionic initiators and their use May. 22, 1984
4355156 Solution polymerization Oct. 19, 1982

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