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7612158 |
Equilibration of siloxanes
The invention relates to a process for the preparation of equilibration products of organosiloxanes by rearrangement of the siloxane bond to a cation exchange resin, the organopolysiloxanes thus...
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7393879 |
High resilient silicone foam and process for preparing same
A method for producing a novel silicone foam by reaction of a polyisocyanate with a silicone oligomer having a plurality of functional end groups with active hydrogens, optionally in the presence...
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7378454 |
Polyurethane composition and polishing pad
A polyurethane composition containing solid beads dispersed therein, is formed of a microcellular polyurethane foam, and the composition has a storage modulus of elasticity at 40° C. of 270 MPa or...
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7285578 |
Water-in-oil emulsion composition for forming silicone elastomer porous material
A water-in-oil emulsion composition for forming a silicone elastomer porous material contains a liquid silicone rubber material which forms a silicone elastomer upon curing, a silicone oil material...
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7268169 |
Silicone elastomer porous body
A substantially closed-cell silicone elastomer porous body includes cells with diameters of 50 μm or less, which occupy 50% or more of all the cells, and has a closed cell rate of 60% or more.
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7183330 |
Silicone surfactants for rigid polyurethane foam made with hydrocarbon blowing agents
A method for making a rigid polyurethane foam by reacting a polyisocyanate and a polyol in the presence of a urethane catalyst, a blowing agent and a silicone surfactant characterized by employing...
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7141612 |
Stabilized foams including surface-modified organic molecules
The invention relates to stabilized gas-in-liquid dispersions or foams containing a liquid continuous phase, a dispersed gas phase, and surface-modified fullerenes, dendrimers, organic polymeric...
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7098255 |
Process for producing polyurethane foam
A process for producing a finely cellular polyurethane foam by mixing a first ingredient comprising an isocyanate compound and a second ingredient comprising a compound containing an active...
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6921779 |
Blowing agent enhancers for polyurethane foam production
Rigid polyurethane blowing agent enhancers, methods for using them, and the products produced by these methods are disclosed. The enhancers are low molecular weight alcohols and/or ethers that...
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6890966 |
Process for the production of a lightweight cold urethane
In a process for the production of a lightweight cold urethane wherein raw materials are injected into a mold in one shot, diethanolamine is added in an amount of 0.1 to 2.0 parts by weight per 100...
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6887911 |
Molded foam articles prepared with reduced mold residence time and improved quality
Foamed molded articles produced by reaction injection molding (RIM) are provided. The molded articles are formed by reaction of a polyisocyanate component with an isocyanate reactive component in a...
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6861453 |
Process for producing a urethane-modified polyisocyanurate foam
A process for producing a urethane-modified polyisocyanurate foam having excellent characteristics such as flame retardancy, heat resistance and low smoking property, and further having improved...
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6841586 |
Felted hydrophilic ester polyurethane foams
An ester polyurethane foam is prepared by reacting a mixture of one or more polyester polyols with one or more isocyanates and one or more silicone surfactants in the presence of a blowing agent,...
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6818674 |
Elastic member and image formation equipment
There are disclosed an elastic member which comprises (A) polyurethane foam obtained by agitationally mixing a foaming agent, a foam stabiizer and a urethane prepolymer synthesized from a polyol...
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6787580 |
Water-free preparation process for multimodal thermoplastic polymer foam and foam therefrom
Prepare a multimodal thermoplastic polymer foam having a distribution of large and small cells in a substantial absence of water by using a blowing agent stabilizer. Multimodal foams of the present...
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6777455 |
Process for producing polyurethane foam
A process for producing a finely cellular polyurethane foam by mixing a first ingredient comprising an isocyanate compound and a second ingredient comprising a compound containing an active...
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6756416 |
Hydrophilic ester polyurethane foams
An ester polyurethane foam is prepared by reacting a mixture of one or more polyester polyols with one or more isocyanates and one or more silicone surfactants in the presence of a blowing agent,...
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6756415 |
Flexible polyurethane foam and method for its production
A flexible polyurethane foam having a core impact resilience of at most 40%, of which the half-width of the resonance transmission peak in the resonance curve is at most 1 Hz.
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6747068 |
Hydrophobic polyurethane foam
The invention is a hydrophobic polyurethane foam prepared from a conventional PO/EO polyether polyol, a graft polyol and a hydrophobicity inducing surfactant. The foam is sufficiently hydrophobic...
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6734219 |
Flexible polyurethane foam and method for its production
A method for producing a flexible polyurethane foam in an open state, which comprises reacting a polyol with a polyisocyanate compound in the presence of a catalyst, a blowing agent and a foam...
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6653361 |
Flame retardant polyurethane composition and method of manufacture thereof
A polyurethane foam or elastomer comprises an organic polyisocyanate component, an active hydrogen-containing component reactive with the polyisocyanate component, wherein the viscosity of this...
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6653359 |
Fire retardant silicone surfactants for use in inert gas blown polyurethane foams
Silicone surfactants for use in inert gas blown polyurethane foams comprise low to moderate molecular weight comb-type flame-retardant silicone copolymers possessing no high ethylene oxide content...
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6638986 |
Preparation of in situ-reticulated flexible polyurethane foams
Reticulated flexible polyurethane foams are prepared by reacting organic and/or modified organic polyisocyanates (a) with a polyetherol mixture (b) and, if required, further compounds (c) having...
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6617365 |
Use of silicon-polyether copolymers in the production of high resilience polyurethane foams
The invention relates to the use of silicone-polyether copolymers of the formula I as surface-active substances in the production of polyurethane foams.
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6572791 |
Electroconductive elastic member, elastic member and image formation equipment
There is disclosed an elastic member constituted of polyurethane foam obtained by agitationally mixing with water, a urethane prepolymer synthesized from a polyol and a polyisocyanate,...
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6541534 |
Rigid polyurethane foams
Polyurethane foams containing a syntactic phase and a cellular, non-syntactic phase are useful as reinforcing foams, such as in automotive applications. The foams are conveniently made in the...
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6541530 |
Urethane-modified polyisocyanurate foam
A urethane-modified polyisocyanurate foam obtained by reacting (A) a polyisocyanate compound component, (B) a polyol component, containing a modified phenolic resin obtained by adding 20 to 100...
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6518324 |
Polymer foam containing nanoclay
Polymer foams containing nanoclay are provided, the foams having improved properties such as thermal insulation values.
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6506810 |
Use of mixtures of organofunctionally modified polysiloxanes with branched alcohols in the production of flexible polyurethane foams
The invention relates to the use of mixtures of organofunctionally modified polysiloxanes with branched alcohols in the production of flexible polyurethane foams.
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6458859 |
Semiconductive silicone rubber composition and silicone rubber roll
By blending acicular conductive titanium oxide and an antistatic agent having a metal ion-containing moiety in an organopolysiloxane having at least two aliphatic unsaturated groups, there is...
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RE37711 |
Enol-ether capped polyethers and surfactants produced therefrom
The use of enol ether capped polyether-polysiloxane copolymers as surfactants in polyurethane foam applications is taught herein. These enol ether capped surfactants exhibit a high capping...
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6271274 |
Open-cell polyisocyanurate foam for fixing and supporting plants
An open-cell polyisocyanurate foam for fixing and supporting plants, which is prepared from an aromatic isocyanate, a hydroxyl compound having an average number of functional groups of 1.0 or above...
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6265456 |
Hydrosilation in high boiling natural oils
An improved process is provided for the preparation of siloxane-oxyalkylene and siloxane-alkyl copolymer compositions via a hydrosilation reaction in the presence of high boiling point natural...
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6258867 |
Method for making semi-rigid energy-absorbing foam with polyurethane fillers
A method for making an energy-absorbing foam with polyurethane fillers that produces an energy-absorbing foam with properties that are comparable to a foam made without fillers.
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6258866 |
Blowing agent compatabilization
Provided herein are subcombinations from which polyurethane foams and polyurethane foams containing polyisocyanurates may be prepared. The subcombinations are unique in that they contain components...
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6245824 |
Silicone surfactants for making polyurethane flexible molded foams
A method for preparing a polyurethane flexible molded by reacting an organic polyisocyanate with a polyol in the presence of urethane catalyst, water as a blowing agent, optionally a cell opener,...
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6239186 |
Silicone surfactants for the production of open cell polyurethane flexible foams
A method for preparing a polyurethane flexible foam which comprises reacting an organic polyisocyanate with a polyol in the presence of urethane catalyst, water as a blowing agent, optionally a...
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6201035 |
Use of low unsaturated polyether polyols in high resilience slabstock foam applications
The present invention discloses a method for the formation of and a flexible slabstock polyurethane foam having substantially improved indentation force deflection and resilience characteristics...
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6166098 |
Use of organofunctionally modified polysiloxanes in the production of polyurethane foam
The invention provides for a composition comprising a mixture of Si--C- and Si--O--C- linked silicone polyether block copolymers and the use of said compositions as an additive in the production of...
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6136876 |
Weak bronsted acid derivatives for improving dimensional stability of polyurethane flexible foams
A method for preparing a flexible polyurethane foam by reacting an organic polyisocyanate with a polyol in the presence of urethane catalyst, water as a blowing agent, optionally a silicone...
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6127441 |
Expandable resin composition
An expandable resin composition comprising: (A) 100 parts by weight of HDPE (high density polyethylene) having a DSC melting point of about 127 to about 136 degrees C.; a density of 0.945 to...
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6121336 |
Surfactants for incorporating silica aerogel in polyurethane foams
Polyurethane foams prepared using polysiloxane/polyoxyalkylene surfactants, preferably blended with a viscosity modifying agent, particularly in combination with particulate silica, especially...
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6117963 |
Tetrahydrofuran-containing silicone polyethers
Block copolymers of the general average formula ##STR1## where, A=radical R 1 , radical D, or radical E, D=radical of the formula --R 2 f --O--(C 2 H 4 -g R 5 g O--) n (CH 2 --CH 2 --CH...
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6100359 |
Ablative polyurea foam and prepolymer
The present invention relates to an ablative fire resistant hydrophilic polyurea foam made from low molecular weight polyols capped with an isocyanate, with the polyol mixture including a fire...
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6080800 |
Aqueous wax dispersions as cell openers in making polyurethane flexible foams
A method for preparing a flexible or semi-flexible polyurethane foam by reacting an organic polyisocyanate with a polyol in the presence of urethane catalyst, water as a blowing agent, optionally a...
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6071977 |
Hydrosilation in high boiling natural vegetable oils
An improved process is provided for the preparation of siloxane-oxyalkylene and siloxane-alkyl copolymer compositions via a hydrosilation reaction in the presence of high boiling point natural...
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6005016 |
Rigid polyurethane foam based on polyethers of TDA
The present invention is directed to a rigid, molded foam produced by reacting: a) one or more organic polyisocyanates, with b) a polyol blend comprising i) 100 parts by weight of a mixture...
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5990185 |
Polymer polyol and preformed stabilizer systems
A preformed stabilizer composition based on a precursor stabilizer obtainable by reacting a silicon atom containing compound of formula R n SiX 4 -n or R n Si((--OSi(R 1 ) 2 ) p X) 4 -n wherein...
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5985948 |
Use of silicone polyether copolymers in the production of high-resilience polyurethane foams
The invention relates to the use of silicone-polyether copolymers of the formula I ##STR1## as surface-active substances in the production of high-resilience polyurethane foams.
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5981613 |
Silicone polyether surfactants
The present invention relates to a siloxane-oxyalkylene copolymer surfactant having the formula MD x D' y M wherein M represents (CH 3 ) 3 SiO 1 /2 or R(CH 3 ) 2 SiO 1 /2, D represents (CH 3 )...
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