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7615580 |
Ester alcohols and substituted carbamates thereof for minimizing deterioration of polyurethane foams
A composition for making a polyurethane foam includes a non-fugitive tertiary amine urethane catalyst and an ester alcohol or substituted carbamate thereof. Foams prepared from the reaction of a...
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7576137 |
Molding made from polyurenthane
A polyurethane molding is composed of at least two different polyurethane materials, namely of a polyurethane gel and a polyurethane foam. The foam and the gel are arranged in layers one above...
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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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7393465 |
Hydrophobic polyols of low viscosity
A process for preparing hydrophobic polyols that includes reacting A) a mixture having an OH content of from 180 to 300 mg KOH/g, a viscosity at 23° C. of from 5000 to 20 000 mPas and an OH...
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7390867 |
Isocyanate adducts
The invention relates to isocyanate adducts which can be prepared by reacting at least one polyisocyanate with compounds having at least two hydrogen atoms which are reactive toward isocyanate...
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7300961 |
Polyol compositions useful for preparing dimensionally stable, low density water-blown rigid foams and the processes related thereto
The present invention relates to polyol compositions which can be used to produce dimensionally stable, low density water-blown rigid foams which have acceptable compressive strengths and...
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7262227 |
Process for producing synthetic resin foam, blowing agent and premix
The present invention relates to a process for producing a synthetic resin foam which comprises reacting at least one polyol with at least one polyisocyanate compound in the presence of an organic...
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7202284 |
Foamed thermoplastic polyurethanes
Process for the preparation of foamed thermoplastic polyurethanes characterized in that the foaming of the thermoplastic polyurethane is carried out in the presence of thermally expandable...
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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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7160930 |
Water blown polyurethane spray foam system
A composition and a method for producing primarily water blown polyurethane foams is provided. The composition uses isocyanate ratios greater than conventional foam system to provide a water blown...
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7141613 |
Flame resistant rigid foams and formulations for the production thereof
The invention relates to flame resistant rigid foams and formulations useful for the production thereof. The polyol formulation must include at least one substance which is inert with respect to...
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7084230 |
Oxylated vegetable-based polyol having increased functionality and urethane materials formed using the polyol
The present invention generally includes material comprising the reaction product of an A-side comprising an isocyanate and a B-side comprising a crosslinker, a catalyst, and a modified vegetable...
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7008974 |
Composition for preparing rigid polyurethane foam having good demolding property
Disclosed is a composition for preparing a rigid polyurethane foam having a good demolding property by defining polyol component and catalyst component. The polyol component comprises 40˜60 wt. %...
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7005458 |
Static dissipative polyurethane foams
A static dissipative flexible polyurethane foam is formed under free rise expansion conditions from a polyether graft polyol and an isocyanate, wherein one or more anti-static additives are...
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6989406 |
Polyurea polyrethanes having improved physical properties
A process for preparing oil and petroleum-resistant cellular to solid (polyurea)polyurethanes (PURS) with improved physical properties in which a polyether polyol component having a number average...
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6960618 |
Preparation method for rigid polyurethane foam
The present invention relates to a preparation method for low-density polyurethane foam excelling in the flame retardance and the dimensional stability, wherein rigid polyurethane foam having the...
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6894083 |
Polyurethane foam composition
Single component compositions for making a moisture-cured polyurethane foam are disclosed. Foam produced from the compositions of the present invention produce very low foaming pressure due to...
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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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6872758 |
Polyurethane foams and method of manufacture thereof
A thermoformable polyurethane foam having excellent compression set resistance, and a thermoformable polyurethane foam having excellent compression set resistance and shape retention under load. In...
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6861454 |
Raw materials for anti-cracking polyurethane foams and method for preparing the same
Raw materials for anti-cracking polyurethane foams comprises: a mixed polyol 100 weight parts; an isocyanate 140˜180 weight parts; a catalyst 1.0˜3.0 weight parts; water 1˜2.5 weight parts; a...
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6849666 |
Polyurethanes containing dispersed crystalline polyesters
A process is disclosed for producing resilient polyurethane foams by foaming an organic polyisocyanate, an iso-cyanate-reactive compound and a fusible polymer. The improvement in the hardness of...
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6846850 |
Rigid polyurethane foams with improved properties
In the process of the present invention, an organic polyisocyanate is reacted with a sorbitol-based polyether polyol having a number average molecular weight of from about 400 to about 1500, in the...
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6833390 |
Process for preparing closed-cell water-blown rigid polyurethane foams having improved mechanical properties
The present invention is directed to a process for preparing water-blown rigid polyurethane foams having at least an 80% closed-cell content which involves reacting a) at least one polyol mixture...
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6784273 |
Biomedical polyurethane, its preparation and use
The invention is directed to a novel biomedical polyurethane based on diisocyanatae linked polyester polymer and diol components, said diol component having a uniform block-length.
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6784220 |
Polyurethane foam
A process for preparing a polyurethane foam, comprising reacting a polyol having a number-average molecular weight of not less than 1000 and less than 2500 with a polyisocyante compound in the...
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6774154 |
Semiflexible and flexible polyurethanes foams having low fogging characteristics and improved physical properties
Semiflexible and flexible polyurethane foams having significantly reduced fogging and improved physical properties such as tensile strength, useful in the transportation industry, are obtained from...
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6753357 |
Rigid foam compositions and method employing methyl formate as a blowing agent
A method for producing a rigid, closed-cell polyurethane foam having a free-rise density of from about 1.3 lbs./ft. 3 to about 4 lbs./ft. 3 and exhibiting a shrinkage of less than 10%, comprises...
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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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6737471 |
Polyurethane elastomers which exhibit improved stability to hydrolysis
A solid and/or cellular polyurethane elastomers which are produced using polyester polyols are disclosed. The elastomers which exhibit improved stability to hydrolysis are characterized in that...
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6710095 |
Polyol containing glycol adduct for use in producing rigid foam
A polyol composition containing a polyester polyol, at least 5 weight % of a compatibilizing agent, based on the weight of the polyol and compatibilizing agent, and a hydrocarbon blowing agent. The...
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6706774 |
Two-component on-site foam system and its use for foaming openings for the purpose of fire protection
A two-component on-site foam system for producing an intumescing fire protection foam is described with a density of less than 200 kg/m 3 and an increased fire resistance endurance, with a polyol...
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6696505 |
Preparation of polyurethane foams
Polyurethane foams are prepared by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms reactive with isocyanate groups, by a process in which the polyisocyanates a)...
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6667416 |
Method and apparatus for producing polyester polyol, polyester polyol and polyurethane foam
To provide a method for producing polyester polyol that can provide a simple process to produce extensively improved production efficiencies and also produce the polyester polyol of stable in...
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6646020 |
Isopropyl chloride with hydrofluorocarbon or hydrofluoroether as foam blowing agents
A composition useful as a blowing agent having no flash point or reduced combustibility comprising 2-chloropropane and a gas selected from the group consisting of a fluorohydrocarbon,...
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6638989 |
Method of preparing polyurethane-modified polyisocyanurate foam
Rigid foams having excellent compression strength, dimensional stability, flame retardance and adhesion are produced by reacting an active hydrogen compound having at least two functionalities with...
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6638990 |
Flame-laminable polyurethane foams
This invention relates to flame-laminable polyurethane block foams having high peel strength, a process for their production and the use thereof for textile lamination.
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6635685 |
Rigid polyurethane foam and process for producing the same
A process for producing a rigid polyurethane foam provides a rigid polyurethane foam having a closed-cell size of about 80-130 μm and thus, improved heat insulating properties.
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6586490 |
Polyol mixture for the preparation of rigid polyurethane foams
The present invention relates to polyol mixtures which are suitable for the preparation of rigid polyurethane foams and comprise addition products of alkylene oxide on aromatic di- or polyamines,...
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6569352 |
Phthalic anhydride based polyester-ether polyols and urethane prepolymers produced therefrom
Disclosed are polyester-ether polyols and their use in urethane prepolymers, urethane foams and non-foam urethane coatings, adhesives, sealants and/or elastomers. Methods for producing such...
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6559196 |
Tough, fire resistant polyurethane foam and method of manufacture thereof
Compositions for the formation of temperature resistant, tough, flame retardant polyurethane foams, comprising a low VOC polyisocyanate component wherein the isocyanate is a low functionality...
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6541411 |
Titanium/zirconium catalysts and their use to prepare esters or polyesters
The invention relates to novel titanium/zirconium catalysts, and to a process for the preparation of these titanium/zirconium catalysts. The process comprises reacting orthoesters or condensed...
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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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6521676 |
Use of polyether-polyurethane for safety clothing
Safety clothing is produced by molding polyether-based plastic-forming compositions. Particularly preferred articles of safety clothing produced by this process are safety shoe soles.
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6486224 |
Polyurethane elastomers having improved hydrolysis resistance
The disclosed invention relates to a polyurethane elastomer that has improved hydrolysis resistance. The polyurethane elastomer is made by reacting a polyol blend of an aromatic dicarboxylic acid...
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6476091 |
Polyol composition containing a hydrocarbon blowing agent
The present invention discloses a polyol resin composition containing a polyether polyol blend, a polyester polyol, and a hydrocarbon blowing agent. The polyether polyol blend has at least a...
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6472442 |
Grasping parts
The present invention provides a gripping part such as a steering wheel and a grip, having a soft feeling equivalent to a RIM urethane and excellent sweat resistance, without the need of coating,...
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6472446 |
Phase stable polyol composition containing hydrocarbon as the blowing agent
The present invention discloses a phase stable polyol blend composition containing a sucrose and dipropylene glycol co-initiated propylene oxide polyether polyol, a polyester polyol, a...
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6465534 |
Elastic sponge
A sponge including an elastic material having a lipid, such as an oil, a fat, or a combination thereof, integrally formed therewith. The elastic material includes an amount from between 0.5 to 20...
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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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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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