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Class Information
Number: 528/354
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Synthetic resins (class 520, subclass 1) > From carboxylic acid or derivative thereof > From compound having -c-c(=o)-o-c- group as part of a heterocyclic ring, e.g., lactone, etc.
Description:










Sub-classes under this class:

Class Number Class Name Patents
528/359 Heterocyclic ring compound is a four-membered ring containing one oxygen and three carbon atoms -c-c(=o)-o-c- 130
528/355 Polymerizing in the presence of a specified material other than a reactant 145


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

Patent Number Title Of Patent Date Issued
8709466 Cationic polymers for antimicrobial applications and delivery of bioactive materials Apr. 29, 2014
8691894 Preparation of polyamide block copolymers Apr. 8, 2014
8691899 Antimicrobial polymer compositions and the use thereof Apr. 8, 2014
8691912 Aliphatic polyester manufacturing method Apr. 8, 2014
8680228 Controlled hydrolysis of poly-4-hydroxybutyrate and copolymers Mar. 25, 2014
8663992 Process for treating polymers containing residual catalyst Mar. 4, 2014
8658261 Composition, film, polarizing plate, and liquid crystal display device Feb. 25, 2014
8658756 Caprolactam-based composition, process for manufacturing an impermeable element, and tank Feb. 25, 2014
8658758 Process for producing aliphatic polyester reduced in residual cyclic ester content Feb. 25, 2014
8653155 Polymers having lipophilic hydrocarbon and biodegradable polymeric segments Feb. 18, 2014
8653226 Polyesteracetals Feb. 18, 2014
RE44769 Dispersants Feb. 18, 2014
8642717 Aliphatic polyester resin and a process for producing it Feb. 4, 2014
8609751 Polymer microfiller composites Dec. 17, 2013
8592539 Preparation of cobaltocenium-containing monomers and their polymers Nov. 26, 2013
8586075 Coatings for implantable devices comprising poly(hydroxy-alkanoates) and diacid linkages Nov. 19, 2013
8580914 Process for producing aliphatic polyester Nov. 12, 2013
8575302 Polylactide composition Nov. 5, 2013
8575301 Absorbable polymer formulations Nov. 5, 2013
8563679 Catalytic systems for the ring-opening (co)polymerization of lactones Oct. 22, 2013
8563664 Crosslinkable biopolymer Oct. 22, 2013
8552142 Copolymers of E-caprolactone and glycolide for melt blown nonwoven applications Oct. 8, 2013
8545971 Polymeric compositions comprising polylactic acid and methods of making and using same Oct. 1, 2013
8524832 Biodegradable impact-modified polymer compositions Sep. 3, 2013
8519084 Use of a C11 diol or C11 diol mixture for producing polymers Aug. 27, 2013
8518302 Stabilization of organic materials Aug. 27, 2013
8492512 Process for reducing moisture in a biodegradable implant device Jul. 23, 2013
8492510 Multifunctional degradable nanoparticles with control over size and functionalities Jul. 23, 2013
8481673 Bio-degradable/absorbable polymer having reduced metal catalyst content, and process for production thereof Jul. 9, 2013
8476402 Carbohydrate lactone polymers Jul. 2, 2013
8476401 Resist polymer, process for production thereof, resist composition, and process for production of substrated with patterns thereon Jul. 2, 2013
8450448 Thermostable biopolyester May. 28, 2013
8445628 Copolymer resin composition, molded product, and method of manufacturing a copolymer resin composition May. 21, 2013
8440215 Absorbable polymer formulations May. 14, 2013
8430948 Condensation and washing device, polymerisation device and method for cleaning process steam during the production of polylactide Apr. 30, 2013
8431678 Method for producing cyclic diesters of L-, D- and D,L-lactic acid Apr. 30, 2013
8399602 Polymerisation reactor, polymerisation device, method for producing bio-degradeable polyester and uses Mar. 19, 2013
8399601 Method for preparing a dialkyl carbonate of dianhydrohexitol Mar. 19, 2013
8394914 Functional polyglycolide nanoparticles derived from unimolecular micelles Mar. 12, 2013
8394915 Polyesterification method Mar. 12, 2013
8389668 Use of a catalytic system for lactide and glycolide (co) oligomerization Mar. 5, 2013
8362170 Polymerizable compound and polymer compound obtained by using the same Jan. 29, 2013
8362159 Degradable biocompatible block copolymer Jan. 29, 2013
8357391 Coatings for implantable devices comprising poly (hydroxy-alkanoates) and diacid linkages Jan. 22, 2013
8344097 Cationically polymerizable composition and method for controlling cationic polymerization Jan. 1, 2013
8344042 Biodegradable synthetic bone composites Jan. 1, 2013
8338402 Scaffold Dec. 25, 2012
8337991 Moldings comprising a polylactic acid composition Dec. 25, 2012
8329854 Synthesis of tri-component resins Dec. 11, 2012
8304500 Polyglycolic acid resin particle composition and process for production thereof Nov. 6, 2012

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