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6716890 |
Polyurethane foams with fine cell size
Polyurethane foams formed using a specific mixture of polyether and graft polyols with toluene diisocyanate have fine cell size (over 70 pores per inch) and higher durability with IFD 25 retention...
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6706844 |
Polyurethane products produced from aluminum phosphonate catalyzed polyetherols
A method for the production of polyurethane products using very low unsaturation polyether polyols prepared in the presence of aluminum phosphonate catalysts is disclosed. Reaction products of the...
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6706776 |
Syntactic foams with improved water resistance, long pot life and short demolding times
This invention relates to syntactic foams comprising the reaction product of a liquid diphenylmethane diisocyanate component, with an isocyanate-reactive component, a filler having a density of...
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6703443 |
Low-viscosity nonaqueous liquid pigment dispersions and methods of utilizing such compositions
A new and useful nonaqueous liquid pigment dispersion is provided which is easy to handle and produces thorough and effective colorations within target media, particularly as compared to standard...
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6699916 |
Rigid hybrid polyurethane foams
Rigid polyurethane foams that can be produced at component volumes ratios of less than 4:1 are prepared from an isocyanate component that contains certain polyfunctional (meth)acrylate compounds....
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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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6660782 |
Rigid polyurethane foams and method to form said foams using low molecular weight diols and triols
The present invention is a polyurethane foam comprising the reaction product of a first reactant comprised of a polyisocyanate having an average isocyanate functionality of at least 2 and a second...
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6660783 |
Preparation of highly resilient polyurethane foams
Highly resilient 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 a...
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6653363 |
Low energy-loss, high firmness, temperature sensitive polyurethane foams
Foaming a polyurethane foam at above atmospheric pressure conditions using a mixture of polyisocyanate and a specific mixture of low molecular weight (high OH number) polyether and graft polyols...
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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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6617369 |
Process for making visco-elastic foams, polyols blend and reaction system useful therefor
The invention relates to a one-shot or prepolymer process for preparing a visco-elastic polyurethane foam by reacting a polyisocyanate composition with a polyol composition comprising b1) an...
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6617368 |
Isotropic rigid foams
This invention relates to a process for the preparation of an isotropic rigid foam comprising the step of reacting: (A) an organic polyisocyanate component selected from the group consisting of:...
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6607817 |
Melamine resin foam with excellent oil repellency
A melamine resin foam endowed with excellent oil repellency and which is improved in fragility without deteriorating the superior properties inherently possessed by melamine resin foams. The...
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6605650 |
Process of making lightweight, rigid polyurethane foam
In a process generating a polyurethane foam by forming a mixture including isocyanate and polyol reactants, catalyst, and blowing agent, which mixture reacts exothermically to yield a rigid...
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6602450 |
Method for producing a thermally insulating plate
A method of producing a heat insulating board comprising two opposed facings and a core made of a rigid synthetic resin foam, which comprises spraying or injecting a foam mix for the rigid...
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6590057 |
Polyurethane elastomers, process for their production and use thereof
The invention provides polyurethane elastomers (PU elastomers), a process for their production using special catalyst mixtures and their use in particular for the manufacture of shoe soles.
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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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6563007 |
Preparation of polyetherols
Polyetherols based on solid initiator substances and liquid, hydroxyl-containing coinitiators are prepared by a catalyzed addition reaction of alkylene oxides by a process in which the initiator...
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6559193 |
Acrylic sol for a sound insulating underbody coating
Disclosed is an acrylic sol for a sound insulating underbody coating. It includes acrylic polymer fine particles, a plasticizer, a filler, a plasticizer, a blocking type urethane resin, a curing...
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6548609 |
Process for the production of oleochemical polyols
The present invention is related to an improved process for obtaining oleochemical polyols from oils, principally of a vegetable origin. The polyols obtained consist of a mixture of ethers, esters,...
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6541532 |
Scorch inhibiting compositions for polyurethane foams
New, useful and surprisingly effective antiscorch compositions for utilization within polyurethane foam production methods which utilize very popular tertiary amine catalysts are provided. Such...
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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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6521674 |
Latex-like flexible polyurethane foam and process for making same
A flexible, latex-like polyurethane foam having the “feel” and comfort of a latex foam and an Indentation Force Deflection (25% IFD as low as 3 lbs.) and the method of making such foam by...
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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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6509388 |
Polyurethane foams for use in wound dressings
The invention provides a method of forming a polyurethane foam suitable for use as a wound-contacting layer, said method comprising: mixing 1 part by weight of an isocyanate-capped prepolymer...
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6498198 |
Fill for pillows and cushions
A fill for cushions that includes a quantity of resilient beads and a quantity of gelatinous particles. The resilient beads are deformable and have shape memory. The gelatinous particles are...
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6472447 |
Stabilized, finely disperse low-viscosity polymer polyols with a high content of polystyrene or polystyrene copolymers
The present invention relates to finely dispersed, low-viscosity polymer polyols which are stabilized in a novel manner and which are characterized by a high content of polystyrene or polystyrene...
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6455603 |
Polymer polyols and a process for the production thereof
Polymer polyols and process for their production are disclosed. The process requires the selection of specified free radical polymerization initiators and amounts thereof to produce a polymer...
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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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6451430 |
Polyurethane, foam-polyester composite structure and method
A composite polyurethane foam structure and method of preparing the composite structure, which structure includes a semirigid-rigid polyurethane foam layer having bonded, free, unreacted,...
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6451868 |
Polyurethane chip molded product and method for manufacturing the same
A polyurethane chip molded product having improved properties and a method for manufacturing the same are provided. The polyurethane chip molded product is manufactured by press-molding...
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6437013 |
Microcellular polyurethane elastomer, and method of producing the same
The microcellular polyurethane elastomer of the present invention has (1) an overall density (D) of 100 kg/m 3 or more but 900 kg/m 3 or less, and (2) overall density (D) and compression set...
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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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6433031 |
Polymer-modified polyols, their use for the manufacture of polyurethane products
The invention provides a high molecular weight polyol comprising dispersed therein the reaction of a polyisocyanate and low molecular weight polyol where said low molecular weight is a mixture of...
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6420448 |
Energy absorbing foams
Polyurethane foams formed under vacuum (below atmospheric pressure) conditions using a specific mixture of polyisocyanate and with a major portion of methylene diisocyanate (MDI) and a specific...
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6417315 |
Preparation of conductive polyurethanes using a conductive quasi-solution
A conductive quasi-solution useful for making a homogeneously conductive single-phase polyurethane, comprising a transition metal salt, a carrier solution, and a dispersing agent, wherein said...
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6417241 |
Process for preparing a flexible polyurethane foam
Process for making molded flexible polyurethane foams MDI-based foams with high resilience using MDI and a polyol composition.
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6403667 |
Macromer stabiliser precursor for polymer polyols
Process for the preparation of a macramer suitable as a stabilizer precursor in a polymer polyol, which process comprises reacting a polyol with a cyclic dicarboxylic acid anhydride not containing...
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6395797 |
Reduction of color degradation of triphenylmethane polymeric colorants within polyurethane foams
New, useful and surprisingly effective polymeric triphenylmethane colorant-containing compositions which exhibit very low color degradation within polyurethane foams. Generally during polyurethane...
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6395798 |
Low density microcellular elastomers based on isocyanate-terminated prepolymers
Low density microcellular polyurethane foams suitable for athletic shoe midsoles and other applications are prepared by diol chain extension of 12 to 16% free NCO isocyanate-terminated prepolymers...
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6372812 |
Higher support, lower density cushioning foams
Polyurethane foams formed under vacuum (below atmospheric pressure) conditions using methylene diisocyanate or a specific mixture of polyisocyanate and with a major portion of methylene...
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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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6355701 |
Process for manufacturing rigid polyisocyanurate foam products
A process for manufacturing an insulation board comprising a rigid polyisocyanurate foam core having two major surfaces and a facing material on at least one of the major surfaces, comprising (a)...
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6337356 |
Production of sound-absorbing polyurethane foams having an adhesive surface
In a process for producing sound-absorbing PUR foams having an adhesive surface by reacting organic and/or modified organic polyisocyanates (a) with a polyetherol mixture (b) and, if desired,...
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6331577 |
Process for producing elastic polyurethane moldings with compact surfaces and cellular cores
Elastic polyurethane moldings having a compact surface and a cellular core are produced by reacting a) modified organic polyisocyanates with b) at least one relatively high molecular weight...
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6329440 |
Preparation of polyisocyanate polyaddition products
In a process for preparing polyisocyanate polyaddition products by reacting isocyanates with compounds which are reactive toward isocyanates, in the presence or absence of blowing agents,...
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6329441 |
Polyurethane foam for shoe soles
Microcellular polyurethane elastomer shoe sole components having exceptional physical properties may be prepared from isocyanate-terminated prepolymers derived from polyoxypropylene diols having a...
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6326410 |
Wound dressing comprising polyurethane foam
A wound dressing has a wound-contact layer formed from a polyurethane foam. The foam comprises one part by weight of the reaction product of an isocyanate-capped prepolymer with water (and...
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6323251 |
Thermoplastic/thermoset hybrid foams and methods for making same
Foams comprising blends of thermoplastic and thermoset materials wherein the thermoset forms a discontinuous phase in a continuous thermoplastic phase are described. Foams comprising an uncured...
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6316514 |
Production of sound-damping and energy-absorbing polyurethane foams
Sound-damping and energy-absorbing flexible PUR foams are produced by reacting organic and/or modified organic polyisocyanates (a) with a polyetherol mixture (b) and, if desired, further compounds...
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