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Class Information
Number: 528/76
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 ether or thioether compound containing at least two -c-x-c- 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 or groups and wherein the carbon atoms bonded to oxygen or sulfur atom are not double bonded to any oxygen, selenium, or tellurium atom.










Sub-classes under this class:

Class Number Class Name Patents
528/77 Ether or thioether compound contains three or more -xh groups 545
528/79 Ether or thioether contains a carbocyclic or aromatic group 178
528/78 Ether or thioether contains at least one nitrogen atom other than as a c nh, c=nh, or c-n(h)-h 178


Patents under this class:

Patent Number Title Of Patent Date Issued
8691929 Curable compositions that form a polyurea demonstrating elongation properties over a large temperature range Apr. 8, 2014
8680213 Thermoplastic polyurethanes Mar. 25, 2014
8653221 Hydroxyl-functionalised polyurethane hot melt prepolymer Feb. 18, 2014
8648124 Weather-resistant polyurethane casting compounds, a process for preparation thereof and use thereof Feb. 11, 2014
8637629 High moisture vapor transmissive polyurethanes Jan. 28, 2014
8623989 Polyurea/polythiourea coatings Jan. 7, 2014
8618184 Polyurethane foams containing branched poly(trimethylene ether) polyols Dec. 31, 2013
8602523 Fluorinated poly(amide-imide) copolymer printhead coatings Dec. 10, 2013
8598297 Prepolymers made from hydroxymethyl-containing polyester polyols derived from fatty acids Dec. 3, 2013
8586695 Polymerization catalyst for polythiourethane optical material, polymerizable composition containing the same, polythiourethane resin obtained from the composition, and process for producing th Nov. 19, 2013
8586694 Polymerization catalyst for polythiourethane-based optical material, polymerizable composition containing the catalyst, optical material obtained from the composition, and method for preparing Nov. 19, 2013
8575293 Resin composition for optical material and optical material using the same Nov. 5, 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
8557945 Kind of biodegradable polyester and its preparation method Oct. 15, 2013
8557346 Composition capable of radiation activated catalysis and radiation curable urethane containing the composition Oct. 15, 2013
8551519 Bioabsorbable surgical articales or components thereof Oct. 8, 2013
8536293 Biomaterial Sep. 17, 2013
8530602 Polyether polyol composition and use thereof Sep. 10, 2013
8530600 Thermoplastic polyurethanes and their use Sep. 10, 2013
8524839 Curable resin composition, transparent laminate, and process for producing transparent laminate Sep. 3, 2013
8501831 Polyisobutylene urethane, urea and urethane/urea copolymers and medical devices containing the same Aug. 6, 2013
8487051 Polyurethane based pigment dispersants which contain reactive double bonds Jul. 16, 2013
8476396 Allophanate modified polyisocyanates Jul. 2, 2013
8476362 Moisture-curing polyisocyanate mixtures Jul. 2, 2013
8461285 Process for preparing polyether polyols Jun. 11, 2013
8455679 Prepolymer systems having reduced monomeric isocyanate contents Jun. 4, 2013
8455610 Polythiourethane polymerizable composition and method for producing optical resin by using same Jun. 4, 2013
8455609 Castable polyurea formulation for golf ball covers Jun. 4, 2013
8455608 Catalyzed pellet heat treatment for thermoplastic polyurethanes Jun. 4, 2013
8445584 Aqueous polyurethane resin May. 21, 2013
8431673 Radiation curable compositions Apr. 30, 2013
8431672 Method for manufacturing an isocyanate-terminated prepolymer, prepolymer obtained thereby, and polyurethane resin Apr. 30, 2013
8420765 Spandex from poly(tetramethylene-co-ethyleneether)glycols blended with polymeric glycols Apr. 16, 2013
8415471 Flexible cycloaliphatic diisocyanate trimers Apr. 9, 2013
8415014 Polymerizable composition comprising perfluoropolyether material having ethylene oxide repeat unit segment Apr. 9, 2013
8383694 Polymerizable composition comprising perfluoropolyether material having ethylene oxide repeat unit segment Feb. 26, 2013
8378052 Composition capable of radiation activated catalysis and radiation curable urethane containing the composition Feb. 19, 2013
8372940 Golf ball Feb. 12, 2013
8372939 Transparent polyurethanes Feb. 12, 2013
8362098 Process for producing viscoelastic polyurethane foams Jan. 29, 2013
8357767 High modulus polyurethane and polyurethane/urea compositions Jan. 22, 2013
8338558 Polyurethane based pigment dispersants which contain reactive double bonds Dec. 25, 2012
8334357 Thickening agent based on polyurethane Dec. 18, 2012
8329850 Golf equipment formed from castable formulation with unconventionally low hardness and increased shear resistance Dec. 11, 2012
8324290 Polyisobutylene urethane, urea and urethane/urea copolymers and medical devices containing the same Dec. 4, 2012
8299201 Bismuth-catalyzed polyurethane composition Oct. 30, 2012
8296974 Thermoplastic polyurethane containing structural units of polyester and polyether diols Oct. 30, 2012
8287788 Method for the continuous production of thermoplastically-processable polyurethane elastomers Oct. 16, 2012
8273847 Medical adhesive Sep. 25, 2012











 
 
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