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Class Information
Number: 525/411
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Synthetic resins (class 520, subclass 1) > Mixing of two or more solid polymers; mixing of solid polymer or sicp with sicp or spfi; mixing of sicp with an ethylenic agent; mixing of solid polymer with a chemical treating or ethylenic agent; or processes of forming or reacting; or the resultant product of any of the above operations > Solid polymer derived from hetero-o-cyclic compounds as sole reactants wherein at least one reactant contains a hetero-o-ring other than solely as a 1,2-epoxy or anhydride, and wherein none of the reactants contains a plurality of methylol groups or derivatives thereof > Mixed with carboxylic acid or derivative reactant or polymer therefrom
Description: Subject matter wherein the solid polymer derived from only hetero-O-cyclic reactant is mixed with a carboxylic acid or derivative reactant or polymer derived therefrom.

Patents under this class:
1 2 3 4 5 6 7 8 9

Patent Number Title Of Patent Date Issued
8691912 Aliphatic polyester manufacturing method Apr. 8, 2014
8685383 Protein-polymer-drug conjugates Apr. 1, 2014
8674032 Biodegradable multi-block co-polymers Mar. 18, 2014
8652506 Bio-degradable block co-polymers for controlled release Feb. 18, 2014
8648151 Piezoelectric polymer material, process for producing same, and piezoelectric element Feb. 11, 2014
8629151 Immunomodulatory agent-polymeric compounds Jan. 14, 2014
8614280 Method for the continuous production of biodegradable polyesters Dec. 24, 2013
8609783 Articles having improved gas barrier properties Dec. 17, 2013
8592530 Copolyester polyols, prepolymers, and polyurethane elastomers formed therefrom and processes for making same Nov. 26, 2013
8536291 Hydrogel compositions and methods of preparation thereof Sep. 17, 2013
8507614 Multiphasic absorbable compositions of segmented l-lactide copolymers Aug. 13, 2013
8501875 Surface induced ring-opening polymerization and medical devices formed therefrom Aug. 6, 2013
8470935 Shape-memory resin, molded product composed of the resin, and method of using the molded product Jun. 25, 2013
8450420 Polylactic acid-containing resin compositions May. 28, 2013
8450431 Bioabsorbable polymer compositions exhibiting enhanced crystallization and hydrolysis rates May. 28, 2013
8445593 Resin composition and molded article comprising the same May. 21, 2013
8445595 Polypropylene prepared with a single-site catalyst and poly(hydroxyl carboxylic acid) blends May. 21, 2013
8445602 Poly lactic acid resin, resin composition, and resin molding May. 21, 2013
8445604 Thermoformed article made from polybutylene succinate (PBS) and modified polybutylene succinate (MPBS) May. 21, 2013
8445628 Copolymer resin composition, molded product, and method of manufacturing a copolymer resin composition May. 21, 2013
8367780 Aliphatic polyester copolymer, method for preparing the same and polylactic acid resin composition using the same Feb. 5, 2013
8362157 Polylactic acid composition and molding comprising the composition Jan. 29, 2013
8344074 Polyamine-polyacrylate dispersant Jan. 1, 2013
8337991 Moldings comprising a polylactic acid composition Dec. 25, 2012
8334347 Compositions for multilayer coating and resins therefore Dec. 18, 2012
8324320 Blends of polar low density ethylene copolymers and poly(hydroxy carboxylic acid)s Dec. 4, 2012
8304500 Polyglycolic acid resin particle composition and process for production thereof Nov. 6, 2012
8283415 Polyethylene and poly(hydroxyl carboxylic acid) blends Oct. 9, 2012
8278397 Medical instrument, medical material, and method for production of the medical instrument and medical material Oct. 2, 2012
8263704 Bioabsorbable surgical composition Sep. 11, 2012
8263715 Hydrogel compositions and methods of preparation thereof Sep. 11, 2012
8236904 Bioabsorbable polymer compositions exhibiting enhanced crystallization and hydrolysis rates Aug. 7, 2012
8231950 Block copolymer derived from renewable materials and method for making such block copolymer Jul. 31, 2012
8231954 Thermoformed articles made from reactive extrusion products of biobased materials Jul. 31, 2012
8232354 Method for producing a polylactic acid resin composition Jul. 31, 2012
8211986 Method for producing polylactic acid block copolymer Jul. 3, 2012
8188185 Biodegradable packaging film May. 29, 2012
8173752 Polymer composition comprising polylactide May. 8, 2012
8163849 Process of producing polylactic acid Apr. 24, 2012
8158729 Material for producing bioabsorbable material, bioabsorbable material, and process for producing these Apr. 17, 2012
8142917 Proton-conducting polymer membrane comprising polyazole blends and its use in fuel cells Mar. 27, 2012
8137687 4-aza-caprolactone-based polymeric compositions useful for the manufacture of biodegradable medical devices and as medical device coatings Mar. 20, 2012
8133955 Aromatic polyester resin composition and process for production thereof Mar. 13, 2012
8114939 Method for stabilizing polymers containing repeating lactic acid units, and stabilized polymers so made Feb. 14, 2012
8092830 Lactic acid polymer and process for producing the same Jan. 10, 2012
8088884 Multi-armed forms of activated polyoxazoline and methods of synthesis thereof Jan. 3, 2012
8084551 Method for plasticizing lactic acid polymers Dec. 27, 2011
8076378 Dispersants Dec. 13, 2011
8071690 Lactic acid based compositions with enhanced properties Dec. 6, 2011
8058470 Polyester polyol Nov. 15, 2011

1 2 3 4 5 6 7 8 9

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