Matches 51 - 100 out of 182 < 1 2 3 4 >
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5182310 Isocyanate-reactive composition and process for preparing a flexible polyurethane foam  
The present invention refers to isocyanate-reactive compositions containing hindered phenolic antioxidants having a molecular weight of at least 700. These compositions, when used to prepare...
5180755 Method for producing antistatic polyurethane resin  
A method for producing antistatic polyurethane resins according to the present invention comprises a reaction of a compound having at least two active hydrogen atoms with an organic isocyanate in...
5132332 Method for preparing hard polyurethane and polyisocyanurate foams using chloropropane blowing agent and non-silicon foam stabilizer  
A method for preparing hard polyurethane and polyisocyanurate foams wherein an isocyanate and an active hydrogen containing compound are made to react in the presence of a catalyst, a foam...
5104904 Use of aromatic petroleum oils as surfactant for polyurethane foams  
Hydrocarbon oils having a high aromaticity (at least 85%, preferably 95-100%) and a boiling point of about 342° to about 510° C. (about 650° to about 950° F.) are used as partial or total...
5082868 Method for the preparation of polyurethane foams  
A method for the preparation of rigid polyurethane and/or polyisocyanurate foams is disclosed. The foams are produced by the reaction of at least difunctional polyisocyanates, a polyol with 3 to 8...
4997857 Stabilizers for polymer/polyols  
A stabilizer for polymer/polyols characterized by four key features: (1) prepared from a starting polyol having a functionality greater than 4; (2) having at least 60% retained unsaturation; (3)...
4940844 Polyol-alkali metal silicate emulsion  
A stable polyol-alkali metal silicate emulsion is produced by mixing and emulsifying an aqueous alkali metal solution, a polyol and an organic compound that will cause the aqueous alkali metal...
4889908 Polyethers and their use as mold release agents for plastics  
The present invention is directed to polyethers obtained by the reaction of a substituted 1,2-epoxy-alkane bearing at least one alkyl substituent containing at least 8 carbon atoms with at least...
4871781 Polydiorganosiloxanes which can be cured to form elastomeric foams  
The invention relates to compositions comprising (A) polydiorganosiloxanes containing vinyl groups, (B) polyorganohydrogensiloxanes, (C) platinum catalysts, and (D) a saturated polyhydric alcohol...
4847307 Rim polyurethane compositions containing internal mold release agents  
The present invention is directed to a process for the production of optionally cellular, polyurethane elastomer moldings or optionally cellular, rigid structural polyurethanes by reacting a...
4806572 Hydrophilic foam pad for makeup removal  
A makeup remover pad is provided which comprises a resilient, open-celled hydrophilic foam matrix, wherein said matrix integrally incorporates an aqueous phase incorporating about 25-75% water,...
4795764 Poly(oxyalkylene) poly(aliphatic isocyanate) prepolymer and polyurea polymer derived therefrom by reaction with polyamine  
Air is mechanically entrained in an aqueous solution of surfactant, polyamine reactant, and low moisture sensitive poly(oxyalkylene) poly(aliphatic isocyanate) prepolymer the poly(oxyalkylene)...
4791146 Method of preparing dimensionally stable, flexible urethane foam and the foam produced thereby  
An open celled, dimensionally stable, flexible urethane foam and method of preparing such foam, which method comprises adding a cell opening dimensionally stabilizing amount of an additive to a...
4783489 Manufacturing process of porous resin mold containing continuous holes and casting mold  
The first invention relates to a novel manufacturing process of mold containing continuous holes and used for filter materials, gas dispersive materials, and mold materials. By this invention, the...
4725627 Squeezable toy with dimensional memory  
Disclosed is a sculpted, hand-squeezable toy which possesses dimensional memory and has a predetermined dimensional memory restoration time. The toy is made by blending a foamable hydrophilic...
4704408 Process for the manufacture of a silicone foam  
A process for manufacturing foamed silicone compositions by foaming a cross-linkable composition which comprises: (a) 100 parts by weight of a vinyl-containing polysiloxane containing 0.0002 to...
4692476 Complex block multipolymer surfactants  
Complex block multipolymer surfactants comprising (a) a siloxane polymer terminated with groups containing a hydroxyl(--OH), (b) one or more diols and (c) a diisocyanate and foam compositions of...
4670478 Polyimide foams and methods of making same  
A high temperature, flame resistant polyimide foam material and methods of making open and closed cell, rigid and flexible foams from common precursors. An aromatic tetracarboxylic dianhydride is...
4656199 Process for the production of matte, non-blocking, thin-walled molded articles from linear thermoplastic polyurethane elasotomers containing polyadducts and their use  
The present invention is directed to a process for the production of matte, non-blocking, thin-walled molded articles, films or tubes from polyurethane elastomers prepared from high molecular...
4640978 Foam-sealed electrical devices and method and composition therefor  
A method of sealing electrical fittings is provided. The method comprises foaming in situ a removable, flame retardant, solvent resistant, substantially closed cell isocyanurate foam. The...
4618630 Organic polymer composition containing an antistatic agent comprising a nonvolatile ionizable metal salt and a salt or ester of a carboxylic acid  
An antistatic additive for polymers, particularly polyurethanes is disclosed comprising an ionizable metal salt and an enhancer comprising a non-ionizable salt or ester of an organic acid.
4596836 Stabilizing urethanes with antioxidants  
Polyurethane can be made having improved heat stability, sufficient to withstand paint oven temperatures by mixing or dispersing about 0.5 to 10 parts or more of an organic monosulfide or...
4588755 Process for the preparation of flexible polyester urethane foams  
In a process of the preparation of flexible polyester urethane foams by reacting polyester polyols having at least two hydroxyl groups in the molecule with at least difunctional polyisocyanates in...
4572919 Unsaturated polyoxyalkylene adduct/fumarate diester reaction product for cellular foam stabilization  
Polyoxyalkylene surfactants for cellular foams can be prepared by reacting under free radical polymerization conditions (1) an unsaturated polyoxyalkylene adduct and (2) an esterified unsaturated...
4560494 Isocyanate functional prepolymers and coating materials based thereon  
A flexibilizing additive compatible with a wide variety of polymeric vehicles is provided wherein the additive comprises the reaction product of (a) an aliphatic polyisocyanate; (b) at least one...
4544679 Polyol blend and polyisocyanurate foam produced therefrom  
The present invention is directed to a polyol blend comprising: (a) from about 30 to about 90 percent by weight of a polyester diol having an OH number of from about 50 to about 500 and having...
4537913 Method of preparing a urea-formaldehyde combination foam that is low in formaldehyde  
A U.F. foam that is diamensionally stable, but low in formaldehyde, was made by adding to a conventional solution of a urea formaldehyde resin precondensate, before foaming, up to 50% urea,...
4506035 Microporous hydrophilic fluoropolymer membranes and method  
An hydrophilic microporous diaphragm comprising a fluorine-containing substrate to which has been radiation co-grafted a mixture of monomers comprising at least one functional monomer of formula I,...
4489175 Method of producing a urea formaldehyde combination foam with a low content of formaldehyde  
To obtain a UF foam which is low in formaldehyde, yet is dimensionally stable, up to 96% urea is dissolved in an approximately 10 to 30% aqueous extract of an alkyl, aryl or alkaryl sulphonic acid,...
4476251 Polyurethane foam having cleaning and germicidal activities  
Disclosed is an improved polyurethane foam having cleaning and germicidal activities. The foam is prepared by mixing together a select prepolymer reactant and water, and adding to the mixture prior...
4476076 Method of open forming an expanded polyester resin article involving a controlled induction period  
A method of forming a synthetic article by open forming techniques by providing a fluid composition containing a predominant quantity of synthetic resin and having a capability for delayed,...
4464488 Polyurethanes using monocarboxylic acid salts of bis(aminoethyl)ether derivatives as catalysts  
The alkylene oxide adduct of bis(aminoethyl)ether may be reacted with formaldehyde in the presence of hydrogen and a hydrogenation-dehydration catalyst to produce compounds of the formula ##STR1##...
4458036 Flexible polyurethane foams containing glycoluril reaction products for a flame and ember drip retardance  
Polyurethane foams prepared from the reaction of polyester polyol with organic isocyanate have improved flame retardance and dripping ember retardance by incorporation of an additive comprising (1)...
4456696 Catalyst for making polyurethanes  
Polyurethane foams with excellent physical properties are obtained by using a catalyst composition of a tertiary amine and 2-ethylhexanoic acid.
4451638 Process for the production of alkali metal polyester silicate resinous products  
Alkali metal polyester silicate resinous products are produced by mixing a polyhydroxy organic compound, an alkali metal silicate and a polycarboxylic acid, then heating the mixture to a...
4426460 Polyurethanes or isocyanurates from alkoxylated hydroxymethylfuran  
Improved rigid urethane and isocyanurate foam compositions having improved fire resistance are described. The urethane foams are based on furan compositions having the formula: ##STR1## and from...
4426462 Method for the preparation of highly absorbent phenolic resin foams  
Improvement in the preparation of open-pored phenolic resin foams by the foaming of intimate mixtures of water-containing phenolic resol resins in the viscosity range of from 1000 to 20,000 cP,...
4417001 Low smoke isocyanurate modified urethane foam and method of making same  
Low smoke isocyanurate modified polyurethane foams are prepared from polyols and a stoichiometric excess of reactive isocyanates providing an --NCO/--OH index of 1.3-3.0, preferably from 1.6-2.3....
4407981 Flame retardant mixture for polyurethanes  
A composition comprises polyurethane, a two-component flame retardant system consisting of an additive first flame retardant containing organophosphorus, and a second flame retardant containing...
4393015 Process of producing urethane-modified polyisocyanurate foams  
A process for producing urethane-modified polyisocyanurate foams in which a poly(oxyalkylene-oxyethylene)polyether polyol is used as a modifying agent having the number of functional groups and the...
4376832 Catalyst-solvent system for polyester-based polyurethane foams comprising N-butylmorpholine and N,N'-dimethylpiperazine and the solvent  
N-butylmorpholine and N,N'-dimethylpiperazine may be used together as a catalyst system in an activator solution to give finer, more uniform cells to polyester-based polyurethane foams if a solvent...
4374209 Polymer-modified polyols useful in polyurethane manufacture  
A polymer-modified polyol is formed by polymerizing an olamine, particularly an alkanolamine, with an organic polyisocyanate in the presence of a polyol. The alkanolamine reacts polyfunctionally...
4362823 Method and composition for closed cell foam formation  
Small amounts of ethoxylated (propoxylated propylene glycol) utilized as a surfactant/emulsifier for polyolisocyanate reaction systems for producing rigid foams that can produce at least 80% closed...
4356273 Fluorochemical foam stabilizer and foamed polyurethanes made therewith  
Active hydrogen-containing fluorochemical is used as a foam stabilizer in preparing polyurethane foams. For example, rigid or flexible polyurethane foams with high or low density and uniform...
4339550 Foam products  
Foam products are disclosed which are produced by incorporating active materials, utilizing in situ methods, into the cell structure of hydrophillic polyurethane foams. The products obtained are...
4336341 Production of polyisocyanurate foam  
Polyisocyanurate foam is produced by reacting a polyisocyanate component with an anhydrous reaction product between a dibasic acid anhydride and a partially alcoholated polyether-polyol with an...
4323657 Dispersions of high melting polyesters in polyhydroxyl compounds, a process for their preparation and their use in the production of polyurethanes  
Novel, finely divided, redispersible dispersions of high melting polyesters in low melting polyhydroxyl compounds are disclosed. Disclosed also is a process for their preparation and their use as...
4314034 Polyurea polyurethane foamed sponge with high wet strength  
An open cell polyurea polyurethane foamed sponge is produced by mixing together a resin and an aqueous pahse. The resin phase consists of a prepolymer made from a hydrophilic oxyalkylene polyol...
4304708 Process for the manufacture of stable polyol-filler dispersions  
This invention relates to a process for the manufacture of stable polyol-filler dispersions. The polyol-filler dispersions are prepared by the crushing of fillers in situ in polyols employing high...
4292412 Hydrophilic, fabric softener foam compositions and method of making  
This invention relates to new, hydrophilic, fabric softener foam compositions having improved release ability of the fabric softener abetted by the addition of a hydrophilic polyether polyol...
Matches 51 - 100 out of 182 < 1 2 3 4 >