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Class Information
Number: 521/171
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Synthetic resins (class 520, subclass 1) > Cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. > Cellular product derived from a -n=c=x containing reactant wherein x is a chalcogen atom > With -xh reactant wherein x is a chalcogen atom > -xh reactant contains a halogen atom
Description: Subject matter wherein the -XH (X is a chalcogen) reactant contains a halogen atom.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8378054 Method for producing polyaryl ethers Feb. 19, 2013
8362098 Process for producing viscoelastic polyurethane foams Jan. 29, 2013
8232364 Gel masses based on polyurethane, their production and use Jul. 31, 2012
7671105 Resin composition and an article formed therefrom Mar. 2, 2010
6887913 Method for producing a rigid foamed synthetic resin May. 3, 2005
6653361 Flame retardant polyurethane composition and method of manufacture thereof Nov. 25, 2003
6100359 Ablative polyurea foam and prepolymer Aug. 8, 2000
6086784 Premixes for the preparation of polyurethane or polyisocyanurate foams Jul. 11, 2000
5889286 Premixes for the preparation of polyurethane or polyisocyanurate foams Mar. 30, 1999
5618854 Combustion-modified flexible polyurethane foams Apr. 8, 1997
5444100 Method for the mixing of low-boiling foaming agent Aug. 22, 1995
5397810 Polyol, polyurethane resin and utilization thereof Mar. 14, 1995
5250581 Polymer polyols containing halogenated aromatic monomers Oct. 5, 1993
5246978 Polyol and rigid polyurethane foam Sep. 21, 1993
5198475 Polyol and utilization thereof Mar. 30, 1993
4990545 Articles with polyurethane resin having memory shape characteristics and method of utilizing same Feb. 5, 1991
4814360 High resiliency molded foam consisting of the reaction product of a polyisocyanate, a polyoxyalkylene polyether polyol, water and a halogenated monohydric alcohol Mar. 21, 1989
4803230 Polyols-polyesters and use thereof in the production of polyurethane foams Feb. 7, 1989
4797429 Bromine-containing polyols Jan. 10, 1989
4734443 Polyurethanes with mono-ol/diol haloneocarbyl polyethers and their esters Mar. 29, 1988
4714720 Brominated polyetherpolyols, process for their preparation and the use of brominated polyetherpolyols in the manufacture of rigid polyurethane foams Dec. 22, 1987
4668710 Trihalovinyl polyol ethers May. 26, 1987
4621104 Process for the production of liquid bromine-containing alkoxylation products Nov. 4, 1986
4564468 Flame retardant for polyurethanes Jan. 14, 1986
4511688 Flame retardant for use in rigid polyurethane foams Apr. 16, 1985
4486551 Method of preparing a flame retarded polyurethane using a flame retarded halogenated polyol Dec. 4, 1984
4468480 Ester and halogen containing polyols Aug. 28, 1984
4468481 Flame retardant polyurethane modified polyisocyanurate Aug. 28, 1984
4468482 Flame retarded polyisocyanurate foam made from polyol derived from halogen containing dicarboxylic acid anhydride Aug. 28, 1984
4468479 Ester and halogen containing polyols Aug. 28, 1984
4458036 Flexible polyurethane foams containing glycoluril reaction products for a flame and ember drip retardance Jul. 3, 1984
4451587 Polyurethane foam and its production May. 29, 1984
4407981 Flame retardant mixture for polyurethanes Oct. 4, 1983
4393248 Flame retarded halogenated polyol Jul. 12, 1983
4363882 Method for producing flame retardant flexible polyurethane foams with blends of dibromoneopentyl glycol and flame retardant plasticizer Dec. 14, 1982
4318999 Low fire hazard rigid urethane insulation foam, polyol mixtures used in the manufacture thereof, and method for manufacture thereof Mar. 9, 1982
4307205 Polyester polyols Dec. 22, 1981
4302272 Process for heat sealing polyurethane foam Nov. 24, 1981
4282332 Polyols derived from 4,4,4-trichloro-1,2-epoxybutane and/or epihalohydrin for use in the production of heat sealable foams Aug. 4, 1981
4275171 Method for producing flame retardant flexible polyurethane foams with blends of dibromoneopentyl glycol and flame retardant plasticizer Jun. 23, 1981
4264745 Fire-retardant polyurethane foam based on a bromine-containing polyester Apr. 28, 1981
4260514 Urethane foam compositions Apr. 7, 1981
4239642 Stabilization of halogenated polyols for polyurethane production Dec. 16, 1980
4223068 Rigid polyurethane foam containing polyester residue digestion product and building panel made therefrom Sep. 16, 1980
4219624 Stabilization of amine catalysts in a composition with halogenated polyols for use in polyurethane foam production Aug. 26, 1980
4177335 Process for preparing a polyurethane foam from an oxyalkylated product Dec. 4, 1979
4163086 Novel oxyalkylated polyol prepolymers, flame retardant interpolymers prepared therefrom, and processes for the preparation thereof Jul. 31, 1979
4152497 Compounds containing the 2,2,2-trichloroethyl group as flame retardants for polyurethanes May. 1, 1979
4128532 Polyetheresters which contain hydroxyl groups and the use thereof in the production of flame resistant synthetic resins Dec. 5, 1978
4125489 Novel prepolymers, flame retardant interpolymers prepared therefrom, and processes for the preparation thereof Nov. 14, 1978

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