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Class Information
Number: 521/154
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 silicon containing reactant
Description: Subject matter involving a cellular polymer derived from at least one reactant which contains a silicon atom or process of preparing; composition containing a polymer derived from a reactant containing a silicon atom or containing a polymerizable reactant containing a silicon atom and which composition is capable of preparing a cellular product or processes of preparing same; processes of treating a cellular polymer derived from a silicon containing reactant with a material which neither reacts with the cellular polymer to change or modify chemical bonds therein or neither forms a desired composition with the cellular polymer or products of such a treatment; processes of treating a cellular polymer derived from a silicon containing polymer without the addition of a material thereto whereby a physical or chemical change in the polymer may be effected or products which are the result of such a treatment.










Patents under this class:
1 2 3 4 5 6 7 8 9

Patent Number Title Of Patent Date Issued
5552448 Plastic foam material composed of thermoplastic resin and silane-modified thermoplastic resin and method for making same Sep. 3, 1996
5525643 Thermally insulative, microporous xerogels and aerogels Jun. 11, 1996
5519067 Foamable silicone rubber composition May. 21, 1996
5514730 Radiation-curable acrylate/silicone pressure-sensitive adhesive compositions May. 7, 1996
5514726 Polymer foams with inherent nonflammability and thermal stability and methods of preparation thereof May. 7, 1996
5514192 Plastic stonewashing stone and method May. 7, 1996
5508321 Intumescent silicone rubber composition Apr. 16, 1996
5498640 Expandable thermoplastic polymers containing organic boron-silicon compounds, and a process for their preparation Mar. 12, 1996
5482978 Expandable conductive silicone rubber composition and conductive sponge roll Jan. 9, 1996
5459167 Process for producing a formed silicone foam by injection molding Oct. 17, 1995
5438081 Microwave-activated preparation of silicone foams, and compositions useful therein Aug. 1, 1995
5436274 Preparation of silicone foams of low density and small cell size Jul. 25, 1995
5414023 Thixotropic foamable organosiloxane compositions May. 9, 1995
5409962 Substantially constant boiling blowing agent compositions of 1,1,1,2-tetrafluoroethane and dimethyl ether Apr. 25, 1995
5391583 Flame-retardant poly (polyisocyanate-organic phosphorus) products Feb. 21, 1995
5386054 Process for the purification of polyisocyanates, the polyisocyanates thus purified and use thereof Jan. 31, 1995
5362761 Process for fabricating porous silicone product Nov. 8, 1994
5358975 Organosiloxane elastomeric foams Oct. 25, 1994
5356940 Process for producing a fine pored silicone foam Oct. 18, 1994
5332762 Blowing agent compositions and compositions curable to give elastomeric silicone foams Jul. 26, 1994
5308877 Resins with high surface areas and porosities May. 3, 1994
5283112 Waterproof breathable fabric laminates and method for producing same Feb. 1, 1994
5252627 Apparatus and method for blending and dispensing foamable, curable organosiloxane compositions Oct. 12, 1993
5252624 System for the production of toluene diisocyanate based flexible foams and the flexible foams produced therefrom Oct. 12, 1993
5250582 Process for making cellular and microcellular polyurethane foams Oct. 5, 1993
5246972 Polish containing highly adsorptive polymer Sep. 21, 1993
5246973 Foamable silicone rubber composition Sep. 21, 1993
5246974 Bonding, sealing and adhesive composition based on silicone Sep. 21, 1993
5240765 Silicone rubber film - forming composition and silicone rubber film Aug. 31, 1993
5239037 Waterproof breathable polyurethane membranes and porous substrates protected therewith Aug. 24, 1993
5239036 Waterproof breathable polyurethane membranes and porous substrates protected therewith Aug. 24, 1993
5238967 Foamable organosiloxane composition Aug. 24, 1993
5225452 Silicone foam forming composition Jul. 6, 1993
5216037 Room temperature vulcanizable, foamable polysiloxane composition Jun. 1, 1993
5214074 Foamable silicone rubber composition and silicone rubber sponge May. 25, 1993
5208313 Waterproof breathable polyurethane membranes and porous substrates protected therewith May. 4, 1993
5198474 Silicone surfactants having t-butyl terminated polyether pendants for use in high resilience polyurethane foam Mar. 30, 1993
5175171 Method and apparatus for the preparation of silicone elastomer foams Dec. 29, 1992
5162397 Silicone foams Nov. 10, 1992
5157058 Microporous waterproof and moisture vapor permeable structures, processes of manufacture and useful articles thereof Oct. 20, 1992
5153231 Silicone foams Oct. 6, 1992
5135960 Sponge-forming organosiloxane composition Aug. 4, 1992
5134170 Acrylic rubber composition Jul. 28, 1992
5126083 Silicone foams of improved fire resistance Jun. 30, 1992
5120385 Foamable silicone composition, silicone sponge, and silicone sponge roll Jun. 9, 1992
5100924 Open cell foam compositions Mar. 31, 1992
5089534 Process for preparing flexible polyurethane foam Feb. 18, 1992
5071885 Reduction of silicone foam density using buffers Dec. 10, 1991
5066683 Microporous waterproof and moisture vapor permeable structures, processes of manufacture and useful articles thereof Nov. 19, 1991
5061736 Foamable silicone rubber composition Oct. 29, 1991

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