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Class Information
Number: 525/420
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 at least one carboxylic acid or derivative > Solid polymer derived from at least one lactam; from an amino carboxylic acid or derivative; or from a polycarboxylic acid or derivative > Solid polymer derived from an amino carboxylic acid or derivative; from a polyamine and a polycarboxylic acid or derivative; from at least one lactam; or from a polyamine salt of a polycarboxylic acid
Description: Subject matter wherein the solid polymer is derived from amino carboxylic acid or derivative, from a polyamine reactant and a polycarboxylic acid reactant or derivative, from at least one lactam reactant, or from a polyamine salt of a polycarboxylic acid.

Sub-classes under this class:

Class Number Class Name Patents
525/420.5 Solid polymer derived from a polycarboxylic acid which is a dimer or trimer of an aliphatic acyclic monocarboxylic acid having at least ten carbon atoms or adducts of unsaturated aliphatic acyclic monocarboxylic acids, having ten carbon atoms with an alpha, beta ethylenically unsaturated carboxylic acid or derivative 85
525/421 Solid polymer derived from reactant containing ethylenic unsaturation 238
525/423 Mixed with reactant containing more than one 1,2-epoxy group per mole or polymer derived therefrom 519
525/424 Mixed with -n=c=x reactant or polymer derived therefrom (x is chalcogen) 333
525/425 Mixed with polycarboxylic acid or derivative and polyhydroxy reactant or polymer therefrom 663
525/426 Mixed with ethylenically unsaturated reactant or polymer therefrom 448
525/427 Mixed with aldehyde or aldehyde derivative reactant or polymer therefrom 96
525/430 Mixed with a reactant containing a single 1,2-epoxy group per mole or polymer derived therefrom 211
525/431 Mixed with silicon containing reactant or polymer derived from 320
525/432 Mixed with additional polycarboxylic acid and a polyamine; amino carboxylic acid or derivative; polyamine salt of a polycarboxylic acid; lactam; or polymer derived therefrom 703
525/433 Mixed with o-c(=o)-o-, hal-c(=o)-, or hal-c(=o)-hal reactant or polymer derived therefrom 180
525/434 Solid polymer derived from hydroxyl group-containing reactant 220
525/435 Solid polymer derived from compound containing more than two amine groups 200
525/436 Solid polymer derived from compound containing more than two carboxylic acid groups or derivatives thereof 484

Patents under this class:

Patent Number Title Of Patent Date Issued
8703879 Continuous method for multi-staged drying and subsequent condensation of a polyamide granulate Apr. 22, 2014
8703878 High-molecular weight conjugate of steroids Apr. 22, 2014
8691932 Thermosetting monomers and compositions containing phosphorus and cyanato groups Apr. 8, 2014
8691882 Organic-inorganic hybrid scaffolds with surface-immobilized nano-hydroxyapatite and preparation method thereof Apr. 8, 2014
8664335 Thermally crosslinked polymeric compositions and methods of making the same Mar. 4, 2014
8653204 Carboxylic polybenzimidazole Feb. 18, 2014
8653203 Method for preparing carboxylic polybenzimidazole Feb. 18, 2014
8647551 Process for producing moldings with an increase in the melt stiffness Feb. 11, 2014
8629151 Immunomodulatory agent-polymeric compounds Jan. 14, 2014
8623968 Polyimide precursor composition, method for preparing polyimide, polyimide prepared by using the method, and film including the polyimide Jan. 7, 2014
8623515 Liquid crystal alignment agent, liquid crystal alignment film manufactured using the same, and liquid crystal display device including the liquid crystal alignment film Jan. 7, 2014
8623124 Polymer blends and carbonized polymer blends Jan. 7, 2014
8618225 Method for producing polyamides Dec. 31, 2013
8617930 Adhesive sheet, dicing tape integrated type adhesive sheet, and method of producing semiconductor device Dec. 31, 2013
8614005 Polyamide blend film Dec. 24, 2013
8609784 Water-soluble polyaminoamides as sunscreen agents Dec. 17, 2013
8603634 End-capped poly(ester amide) copolymers Dec. 10, 2013
8603618 Polyamide imide resin composition and insulating sheet including the polyamide imide resin composition Dec. 10, 2013
8597750 Polyester resin composition, method for producing same and molded body Dec. 3, 2013
8592528 Polymer, composition and film Nov. 26, 2013
8584440 Cellulose-based fiber, and tire cord comprising the same Nov. 19, 2013
8580906 Polyrotaxane, aqueous polyrotaxane dispersion composition, crosslinked body of polyrotaxane and polymer and method for producing the same Nov. 12, 2013
8580899 Process for producing moldings with an increase in the melt stiffness Nov. 12, 2013
8575253 Aramid particles containing peroxide radical intiator Nov. 5, 2013
8546487 Cationic poly (amino acids) and uses thereof Oct. 1, 2013
8545988 Polyetherimide and polyetherimide sulfone blends having automotive lighting applications Oct. 1, 2013
8536281 Method for synthesizing supramolecular materials Sep. 17, 2013
8530571 Polyamide compositions having high acid ends Sep. 10, 2013
8524837 Heat-curing powder-lacquer compositions yielding a matte surface after curing of the coating, as well as a simple method for production of same Sep. 3, 2013
8507615 Polyimide resins for high temperature wear applications Aug. 13, 2013
8501874 Thermosetting resin composition, multilayer body using same, and circuit board Aug. 6, 2013
8501291 Sterilized polyetherimide/polyphenylene ether sulfone articles Aug. 6, 2013
8492507 Acetylenic polyamide Jul. 23, 2013
8492484 Medical devices comprising a co-polymer of a polyamide and a polycarbonate diamine Jul. 23, 2013
8492474 Methods of making polymer blend compositions Jul. 23, 2013
8481652 Thermoplastic polyamides having polyether amines Jul. 9, 2013
8476377 Crosslinkable polyamide molding compounds and molded parts produced therewith Jul. 2, 2013
8466238 Latent curing agents, epoxy resin compositions containing the same, sealing materials, and organic EL displays Jun. 18, 2013
8450409 Method for mixing a rubber composition May. 28, 2013
8445603 Linear polyesteramides from aminophenolic esters May. 21, 2013
8436080 Composition for maintaining good color when thermally treating polyester-polyamide blends May. 7, 2013
8404777 Thermoplastic-toughened cyanate ester resin composites with low heat release properties Mar. 26, 2013
8404662 Cyclodextrin-based polymers for therapeutics delivery Mar. 26, 2013
8399573 Polymer blend compositions Mar. 19, 2013
8399431 Cyclodextrin-based polymers for therapeutics delivery Mar. 19, 2013
8389646 Medical devices comprising a co-polymer of a modified polyamide and a polycarbonate Mar. 5, 2013
8383244 Semiaromatic molding compounds and uses thereof Feb. 26, 2013
8367772 Crosslinked aramid polymer Feb. 5, 2013
8357761 Polymer composition, transferring belt for electrophotography, image-forming apparatus and method for producing polymer composition Jan. 22, 2013
8337982 Benzoxazole resin precursor, polybenzoxazole resin, resin film and semiconductor device Dec. 25, 2012

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