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Class Information
Number: 528/80
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Synthetic resins (class 520, subclass 1) > From reactant having at least one -n=c=x group (wherein x is a chalcogen atom) as well as precursors thereof, e.g., blocked isocyanate, etc. > With reactant compound containing at least two -c-c(=x)-x-c groups and which compound is devoid of c-nh, c=nh or c-n(h)-h groups
Description: Subject matter wherein a material containing two or more -N=C=X (X is chalcogen) groups is reacted with a compound having two or more groups and which compound is devoid of any C-NH-, C=NH, or C-NH2










Sub-classes under this class:

Class Number Class Name Patents
528/81 Reactant compound which contains at least two -c-c(=x)-x-c groups contains three or more xh groups 234
528/82 Reactant which contains at least two -c-c(=x)-x-c groups contains tertiary nitrogen atom 38
528/83 Reactant which contains at least two -c-c(=x)-x-c groups has been derived from only a dicarboxylic acid or derivative and only a dihydric alcohol or alcoholate derivative 481


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

Patent Number Title Of Patent Date Issued
8702899 Dryblend process for preparing high-reactivity polyurethane compositions containing uretdione groups Apr. 22, 2014
8680213 Thermoplastic polyurethanes Mar. 25, 2014
8653219 Method for producing reactive polyurethane compositions Feb. 18, 2014
8652568 Coating composition Feb. 18, 2014
8623989 Polyurea/polythiourea coatings Jan. 7, 2014
8602504 Polyurethane elastomer of high quality Dec. 10, 2013
8598297 Prepolymers made from hydroxymethyl-containing polyester polyols derived from fatty acids Dec. 3, 2013
8575280 Thermosetting resin composition, thermosetting resin composition solution, film forming material and their cured product Nov. 5, 2013
8569440 Highly reactive polyurethane compositions containing uretdione groups Oct. 29, 2013
8557346 Composition capable of radiation activated catalysis and radiation curable urethane containing the composition Oct. 15, 2013
8557947 Compositions useful in golf balls Oct. 15, 2013
8535655 Biodegradable polymer--bioactive moiety conjugates Sep. 17, 2013
8536293 Biomaterial Sep. 17, 2013
8530600 Thermoplastic polyurethanes and their use Sep. 10, 2013
8487051 Polyurethane based pigment dispersants which contain reactive double bonds Jul. 16, 2013
8476396 Allophanate modified polyisocyanates Jul. 2, 2013
8455679 Prepolymer systems having reduced monomeric isocyanate contents Jun. 4, 2013
8455608 Catalyzed pellet heat treatment for thermoplastic polyurethanes Jun. 4, 2013
8415471 Flexible cycloaliphatic diisocyanate trimers Apr. 9, 2013
8378052 Composition capable of radiation activated catalysis and radiation curable urethane containing the composition Feb. 19, 2013
8357768 Low haze thermoplastic polyurethane using co-chain extenders Jan. 22, 2013
8357767 High modulus polyurethane and polyurethane/urea compositions Jan. 22, 2013
8349987 Adhesive formulations Jan. 8, 2013
8338558 Polyurethane based pigment dispersants which contain reactive double bonds Dec. 25, 2012
8334357 Thickening agent based on polyurethane Dec. 18, 2012
8318890 Polycarbonate diol Nov. 27, 2012
8303625 Biodegradable shape memory polymeric sutures Nov. 6, 2012
8296974 Thermoplastic polyurethane containing structural units of polyester and polyether diols Oct. 30, 2012
8299201 Bismuth-catalyzed polyurethane composition Oct. 30, 2012
8287788 Method for the continuous production of thermoplastically-processable polyurethane elastomers Oct. 16, 2012
8288478 Golf balls based on thermoplastic polyurethanes comprising moisture-resistant polyols Oct. 16, 2012
8273846 Polyurethane and polyurethane urea elastomers based on polycarbonate polyols Sep. 25, 2012
8270089 Thermoplastic polyurethane lenses with a specified weight percentage of urethane repeating units Sep. 18, 2012
8268952 Supramolecular ionomers Sep. 18, 2012
8242228 Low haze thermoplastic polyurethane using mixture of chain extenders including 1,3- and 1,4-cyclohexanedimethanol Aug. 14, 2012
8202618 Radiation-curing binders and a process for their preparation Jun. 19, 2012
8153750 Viscosity reducer for highly viscous polyols Apr. 10, 2012
8148488 (Block) polyisocyanate composition and coating composition using same Apr. 3, 2012
8143368 Disposable medical supplies from hydrolytically biodegradable plastics Mar. 27, 2012
8143321 N,N,N,'-trimethyl-bis-(aminoethyl) ether and its derivatives as catalysts for polyurethanes Mar. 27, 2012
8138299 Thermoplastic polyurethanes Mar. 20, 2012
8114920 UV-curable aqueous emulsion, preparation thereof and solventless coating composition comprising the same Feb. 14, 2012
8097675 2,2'-MDI-based isocyanate mixtures, polyisocyanate polyaddition products prepared therefrom, processes for making the same and methods for their use Jan. 17, 2012
8084527 Hotmelt adhesive with good adhesion to polyolefins Dec. 27, 2011
8063144 Polyisocyanate mixtures, a process for their preparation and their use in coating compositions Nov. 22, 2011
8058343 Solvent free aqueous polyurethane dispersions and adhesive films therefrom for stretch fabrics Nov. 15, 2011
8039574 Method for the preparation of low-viscosity (poly) isocyanates Oct. 18, 2011
8022200 Process for the preparation of liquid, storage-stable organic isocyanates of low color number containing carbodiimide and/or uretonimine groups Sep. 20, 2011
8022138 Polyurethane-urea polymers derived from cyclohexane dimethanol Sep. 20, 2011
8017720 Sulfur-containing oligomers and high index polyurethanes prepared therefrom Sep. 13, 2011

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