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Class Information
Number: 521/119
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 formation prior to or during solid polymer formation in the presence of a stated ingredient other than water > Ingredient is inorganic halogen containing material
Description: Subject matter wherein the stated ingredient contains a halogen atom either as elemental halogen or as part of an inorganic halogen compound.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8053484 Composition for polyurethane foam and polyurethane foam prepared therefrom Nov. 8, 2011
7541388 Polyimide foams Jun. 2, 2009
7393879 High resilient silicone foam and process for preparing same Jul. 1, 2008
7144925 Fire resistance acoustic foam Dec. 5, 2006
6956066 Polyimide foams Oct. 18, 2005
6906110 Method for the production of polyurethanes Jun. 14, 2005
6653361 Flame retardant polyurethane composition and method of manufacture thereof Nov. 25, 2003
5889286 Premixes for the preparation of polyurethane or polyisocyanurate foams Mar. 30, 1999
5677357 Antistatic additive for organic polymer compositions Oct. 14, 1997
5605721 Shock absorbing underlayment for artificial playing surfaces Feb. 25, 1997
5514722 Shock absorbingg underlayment for artificial playing surfaces May. 7, 1996
5502150 Linear HDI urethane prepolymers for rim application Mar. 26, 1996
5428104 Polyol compositions Jun. 27, 1995
5173559 Reactive systems and a process for the preparation of polyurethane plastics Dec. 22, 1992
5104907 Process for producing high resilience polyurethane foam Apr. 14, 1992
5089534 Process for preparing flexible polyurethane foam Feb. 18, 1992
5077330 Conductive polyurethane-urea/polyethylene oxide Dec. 31, 1991
5023280 Process for the production of polyurethane foams Jun. 11, 1991
5019599 Deodorizing urethane foam and process for its production May. 28, 1991
5001165 Polyoxyalkylene solubilizers for polyol blends Mar. 19, 1991
4966920 Smoke and toxic gas suppressant composition Oct. 30, 1990
4948818 Method of making porous hydrophilic-lipophilic copolymeric powders Aug. 14, 1990
4944947 Therapeutic dental appliance Jul. 31, 1990
4937273 Process for producing antibacterial flexible polyurethane foam Jun. 26, 1990
4927863 Process for producing closed-cell polyurethane foam compositions expanded with mixtures of blowing agents May. 22, 1990
4925881 Heat resistant foamable thermosetting resin systems May. 15, 1990
4912141 Fibrous and cartilaginous tissue replacement Mar. 27, 1990
4902721 Foamable thermoplastic polymers and a method for foaming Feb. 20, 1990
4902511 Fibrous and cartilaginous tissue replacement Feb. 20, 1990
4885315 Foamable thermoplastic polymers and a method for foaming Dec. 5, 1989
4861805 Antistatic polyurethane shoe sole compositions Aug. 29, 1989
4791142 Method and apparatus for producing a foam from a molten thermoplastic material Dec. 13, 1988
4774040 Process for the manufacture of molded bodies from heat resistant polyurethane integral foam Sep. 27, 1988
4743624 Process for the production of flame-retardant polyurethane products May. 10, 1988
4736008 Preparation process of heat-resistant polymers from polycarboxcylic acids and anhydrides in the presence of an alkali metal fluoride Apr. 5, 1988
4654375 Fire-retardant polyurethane foam and method and resin for preparing the same Mar. 31, 1987
4575518 Homogeneous storage stable salt-containing mixture Mar. 11, 1986
4530777 Polyurethane foams and processes for preparation Jul. 23, 1985
4521544 Polyurethane foam from cellulosic products Jun. 4, 1985
RE31757 Composition and a method for controlling reaction pressures during the foaming process resulting in an easily flame retarded foam-in place insulation Dec. 4, 1984
4461851 Foam-forming organopolysiloxane composition Jul. 24, 1984
4451633 Olefin polymerization May. 29, 1984
4347331 Foamed, low density, highly extended unsaturated polyester resin syrup composition, a shaped article comprised of the composition and a process for preparing such article Aug. 31, 1982
4315078 Flame retardant flexible polyurethane foam containing finely divided inorganic salt wherein a mold of said salt contains at least five moles of water Feb. 9, 1982
4291129 Composition and a method for controlling reaction pressures during the foaming process resulting in an easily flame retarded foam-in place insulation Sep. 22, 1981
4232127 Furan-modified isocyanurate foams Nov. 4, 1980
4184021 Ambient cure polyimide foams prepared from aromatic polyisocyanates, aromatic polycarboxylic compounds, furfuryl alcohol, and a strong inorganic acid Jan. 15, 1980
4130697 Process for the production of foamed plastics with improved combustion characteristics Dec. 19, 1978
4122047 Production of polyester foam Oct. 24, 1978
4080345 Catalyst mixture for use in trimerizing and/or polymerizing isocyanates and/or for the polyaddition of active hydrogen atom containing polyethers and polyisocyanates Mar. 21, 1978

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