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7625954 |
Method for producing polyurethane-soft foam materials
The invention relates to a process for producing flexible polyurethane foams, in particular molded flexible polyurethane foams, by reacting a) polyisocyanates with b) compounds having at least two...
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7622542 |
Plastic moldings from optionally filled polyurethanes and their use
The present invention relates to plastic moldings that are prepared from optionally filled polyurethanes. The plastic molding of the present invention exhibit high tenacity, flexural strength and...
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7572837 |
Process for the production of flexible polyurethane foams
Flexible polyurethane foams are produced by reacting a polyol and a polyisocyanate in the presence of a catalysts and other auxiliary agents, the process characterized in that a tin-based catalyst...
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7541388 |
Polyimide foams
A fully imidized, solvent-free polyimide foam having excellent mechanical, acoustic, thermal, and flame resistant properties is produced. A first solution is provided, which includes one or more...
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7414080 |
Polyurethane polishing pad
The polishing pad is suitable for planarizing at least one of semiconductor, optical and magnetic substrates. The polishing pad includes a cast polyurethane polymeric material formed with an...
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7259191 |
Multi-layer golf ball with a foamed intermediate layer
A golf ball with relatively rigid inner core and soft intermediate layer is disclosed. The rigid inner core maintains the balls' high coefficient of restitution at high impact speeds, while the...
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7199168 |
Process for making cellular composites using polymeric isocyanates as binders for hollow filler particles
The present invention relates to a process for the production of a cellular composite, and to the resultant cellular composites. This process comprising (A) preparing a mixture of a polyisocyanate,...
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7129279 |
Lightweight tire support and composition and method for making a tire support
A polyurethane-polymer composition suitable for preparing a lightweight tire support includes at least one isocyanate, at least one polyol, and at least one chain extender. A polyurethane-polymer...
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7078443 |
Viscoelastic foam layer and composition
A viscoelastic foam is provided having an amine-based polyol system to impart strength, recoverability and endurance to the foam, and an appropriately selected trifunctional non-amine-based polyol...
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7056958 |
Methods of production of high-strength black polyurethane foams
Black polyurethane foams that exhibit higher strength black colorations without the need for concomitant increases in black colorants therein are provided. Such a resultant jetter black foam...
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6979701 |
Thermoplastic polyurethane foam, process for production thereof and polishing pads made of the foam
The present invention aims to provide a polyurethane foam, suitably usable as a polishing pad, having a uniform foam structure, which can achieve the improvements in the flatness of the surface of...
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6949589 |
Elastic foamed grinder material and method for producing the same
An elastic foamed grinder material of polyurea series for grinding and/or buffing, which is obtainable by subjecting a composition including a main ingredient component including a polyisocyanate,...
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6878753 |
Process for producing polyurethane foam
A process for producing a polyurethane foam which comprises mixing a polyol solution comprising 100 parts by weight of a polyester-polyol, 0.1 to 1.8 parts by weight of water and 0.1 to 5 parts by...
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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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6855739 |
Modified polyurethane foamed materials used as adsorbents
The invention relates to polyurethane foams comprising
(i) ethylenimine, polyethylenimine, polyvinylamine, polyvinylamine copolymers, carboxymethylated polyethylenimines, phosphonomethylated...
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6818675 |
Process for preparing polyurethane foam
A process for preparing a polyurethane foam is provided which comprises reacting a polyisocyanate and an active hydrogen-containing component, including water and an organic polyol, in the presence...
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6808800 |
Rigid polyurethane foam and heat insulating construction element comprising the same
A rigid polyurethane foam is described which is preferably, while not exclusively, used for manufacturing composite building elements used in buildings or for manufacturing industrial...
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6800715 |
Lightweight tire support and composition and method for making a tire support
A polyurethane-polymer composition suitable for preparing a lightweight tire support includes at least one isocyanate, at least one polyol, and at least one chain extender. A polyurethane-polymer...
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6767929 |
Process for producing polyurethane
A catalyst for producing a polyurethane, comprising a dialkylaminoalkyl alcohol represented by the formula (I): R 1 R 2 N—X—OH (I) wherein each of R 1 and R 2 is independently an alkyl...
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6765034 |
Flame-resistant and sound- and vibration-insulating member for vehicles, and process of manufacturing the same
A flame-resistant and sound- and vibration-insulating member for a vehicle, which is a soft polyurethane foam formed by a reaction between an organic polyisocyanate component and a polyol...
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6759363 |
Activators for the production of polyurethane foams
Activators with reduced volatility that are liquid at room temperature are obtained as the reaction product of (A) a secondary amine or primary alcohol having at least one tertiary amine group, (B)...
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6740686 |
Process for the manufacture of polyurethane foam, amine polyesterpolyol used in this process and foam obtained
The invention concerns a method for making a polyurethane foam by reacting at least a polyester polyol with at least a polyisocyanate in the presence of a foaming agent and a catalytic agent, such...
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6649726 |
Two-component type polyurethane composition and process of preparing the same
The two-component type polyurethane composition according to the present invention is obtained from a principal component containing a compound having an isocyanate group and a curing agent...
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6627671 |
Methods for making urethane molded products for polishing pads
Urethane molded products for polishing pad comprise two types of cells having different sizes in urethane molded products formed by mixing and curing an isocyanate-terminated urethane prepolymer...
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RE38201 |
Amido functional amine catalysts for the production of polyurethanes
The use of 3-[3-(dimethylamino)propyl]-propionamide (Formula I) and 3,3′-{[3-(dimethylamino)propyl]imino}bis-propanamide (Formula II) as catalysts in the production of polyurethanes. The use...
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6590003 |
Method for producing soft to semi-rigid polyurethane integral foamed materials
The invention provides a process for the production of flexible to semi-rigid polyurethane shaped articles with a compacted edge zone of given hardness and a significantly more flexible cell core,...
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6548616 |
Lightweight tire support and composition and method for making a tire support
A polyurethane-polymer composition suitable for preparing a lightweight tire support includes at least one isocyanate, at least one polyol, and at least one chain extender. A polyurethane-polymer...
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6534555 |
Catalyst systems for polyurethane polyester foams
Provided are catalyst systems which produce flexible polyurethane polyester foams that are color stable, are lower in odor, and uses less catalysts than current most commonly practiced technology....
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6495722 |
Mannich polyols for rigid spray foams
Provided herein are polyurethane foams which may be prepared by spray techniques. The foams of the invention are prepared using conventional isocyanates and a novel Mannich condensate polyol having...
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6458860 |
Advances in urethane foam catalysis
Provided herein are catalyst systems useful for providing polyurethane foam products which exhibit low fogging characteristics while possessing favorable overall physical properties when used as...
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6455606 |
Polyurethane foam, process for producing the same, and foam forming composition
A polyurethane foam which is obtained by reacting an addition-polymerizable active hydrogen component comprising a compound having a group containing active hydrogen and an addition-polymerizable...
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6455605 |
Foamable composition exhibiting instant thixotropic gelling
The invention relates to a foamable composition comprising at least two parts. The first part comprises a polyol, a thixotropic gelling agent, a blowing agent, a urethane reaction catalyst and a...
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6433033 |
High-durability flexible polyurethane cold cure molded foam and process for producing the same
The high-durability flexible polyurethane cold cure molded foam of the invention has an overall density of not less than 35 kg/m 3 and not more than 45 kg/m 3 and a wet heat compression set of...
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6433032 |
Process for rigid polyurethane foams
Process for the preparation of open celled rigid polyurethane or urethane-modified polyisocyanurate foams by reaction of a polyfunctional isocyanate-reactive composition with a polyisocyanate...
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6420446 |
Polyurethane prepared from sorbitol-branched polyesters
Polyurethanes synthesized from sorbitol-branched polyester made by esterification of a diacid (or anhydride thereof diol, and sorbitol (or mixtures of same with other polyols).
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6387972 |
Process to enhance polyurethane foam performance
An improved process to enhance polyurethane foam performance is described. Polyurethane foam is prepared by reactions between a polyisocyanate and a polyfunctional isocyanate-reactive component...
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6380274 |
Catalyst compositions for the production of polyurethanes
A composition having the formula: wherein R is a linear alkyl, branched alkyl, cycloalkyl, polycyclic alkyl, alkylaminoalkyl, or alkyloxyalkyl group having 1 to 20 carbon atoms and at least one...
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6362302 |
Method and compositions for spray molding polyurethane three dimensional objects
A method of producing three dimensional polyurethane shapes by spray molding a quasi-gel like polymer precursor composition that is first mixed and then sprayed by a spray gun. The spray coating of...
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6355700 |
Foamed thermal insulating material and insulated structure
An insulated structure is formed by injection of a foamed thermal-insulating material created by foaming into a space between a plastic board and metal plate with a disposition of copper pipes. A...
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6346559 |
Polyurethane foam and associated process for production
A polyurethane foam and associated production process, in particular flexible to semi-hard block foams or soft molded foams, using polyesters or polyethers as polyols. A carbamate, or a mixture of...
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6316513 |
Process for the producing of hard polyurethane foams with low heat conductivity
A process for the production of rigid polyurethane foams having low thermal conductivity is described. This process comprises reacting A) a polyol component comprising: (1) at least one...
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6303669 |
Flexible polyurethane foam
The present invention provides a flexible polyurethane foam having good resistance to wet heat aging and resistance to ozone deterioration and a speaker edge having an excellent waterproofness...
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6288133 |
Foaming urethane composition and methods of using such compositions
This invention relates to a foamable composition comprising at least two parts. More specifically, the first part comprises at least one polyol, at least one gelling agent, and at least one blowing...
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6274639 |
High build polyurethane coating
An improved durable, low density, high build polyurethane coating is disclosed, as well as its method of manufacture. A slow reacting polyisocyanate is combined with a polyol so as to form a...
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6248801 |
Tertiary amine-containing active methylene compounds for improving the dimensional stability of polyurethane foam
A method for making flexible polyurethane foam in which a polyisocyanate is reacted with a polyol in the presence of a urethane catalyst, a blowing agent, optionally a silicone surfactant cell...
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6153659 |
3-{N-[2-(N',N'-dimethylamino ethoxy)ethyl]-N-methylamino}propionamide for the production of polyurethanes
3-{N-[2-(N',N'-dimethylamino ethoxy)ethyl]-N-methylamino}propionamide is a new compound which is useful as a catalyst in the production of polyurethane foams.
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6136879 |
Soft polyurethane foam, method of producing the same and vehicle interior member using the same
A soft polyurethane foam which has a rebound resilience percentage of not higher than 30% and whose temperature dependency of a compression force deflection that is represented by a difference...
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6130267 |
Fire retardant compositions
The invention provides a fire retardant composition comprising a dispersion of a solid fire retardant such as melamine, ammonium polyphosphate or guanidine carbonate in a liquid organic...
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6063824 |
Microcellular urea-containing polyurethane elastomer
A microcellular PU elastomer having improved dynamic-mechanical properties and based on an isocyanate component consisting essentially of 4,4'-MDI and also further customary constituents has, after...
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6060531 |
Production of low-fogging polyurethane foams, and specific polyoxyalkylene-polyols which can be used for this purpose
The invention relates to a process for the production of polyurethane foams by reacting a) at least one organic polyisocyanate with b) at least one polyalkylene-polyol (b1) having a hydroxyl...
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