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4185146 |
Polyurethane binder composition containing a rubber extender oil and a finely divided solid soybean derivative
A composition suitable for use as a binder for shredded, flexible polyurethane foams to make articles such as carpet or rug underlay comprises a polyalkylene ether polyol having from 2-4 hydroxyl...
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4182641 |
Method of forming lamina and block laminates
A method of forming a laminate composed of a solid polyester lamina bonded to a block. A block having a matrix composed of polyurethane foam and particles of expanded polystyrene distributed...
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4181781 |
In-situ polyvinyl grafting of polyurethanes
Disclosed is a process for preparing polyurethane which comprises including an azo or peroxy di-ester polyol and an ethylenically unsaturated monomer in a polyurethane reaction formulation to...
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4176218 |
High resilience flexible foamed polyurethanes, foamable mixtures and process therefor
A flexible, highly resilient, cold-cure, closed-mold polyurethane foam can be produced by reacting a foamable mixture comprising an organic polyisocyanate, water and a polyol. The foams of the...
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4176217 |
Process for the manufacture of foamed plastics with improved combustion characteristics
Production of foamed plastics with improved combustion characteristics by condensing aqueous solutions of aminoplast precondensates with at least bifunctional organic isocyanate whereby an acid...
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4172825 |
Polymer/polyols and process for production thereof
This invention relates to a novel process for producing polymer/polyols characterized by the use of specific combinations of acrylonitrile and styrene and by utilizing certain peroxyester...
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4169954 |
3,3-Carbonylbis(carbazates) as blowing agents
Novel blowing agents are disclosed comprising 3,3'-carbonylbis(organo carbazates). The organo group may be alkyl, cycloalkyl, aryl or aralkyl moieties. In the preferred embodiment the organo group...
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4167612 |
Flexible polyurethane foams having low resistance to air flow and method for preparation
Flexible polyurethane foams having low resistance to air flow and, in addition, having good load bearing characteristics and high strength comprising the reaction product of polyisocyanate, a...
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4166889 |
Sheet material with improved dyeability
A sheet material with improved dyeability comprises a polyurethane resin obtained by reacting an organic diisocyanate with a polymer polyol and if necessary together with a chain extender.
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4165432 |
Peroxy di-ester polyols
Compounds containing peroxy linkages connecting similar polyol ester constituents are described. These peroxy di-ester polyols are prepared by the direct esterification of peroxy diacids with...
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4161570 |
Process for the production of radiation curable coating compositions containing microcapsules
A process is provided for producing a radiation curable coating composition containing microcapsules comprising the steps of preparing a dispersion of substantially discrete microcapsules in a...
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4158087 |
Urethane foams having low resiliency
Disclosed herein are hydrophilip polyether urethane foams having reduced resiliency and prepared by reacting a polyoxyalkylene urethane prepolymer containing at least 40 mole percent of oxyethylene...
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4153764 |
Process for the production of polyisocyanate organic silicate solid/cellular solid product
Polyisocyanates are reacted chemically with an oxidated silicon compound to produce a polyisocyanate silicate prepolymer. The polyisocyanate silicate prepolymer will react with organic compounds to...
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4148840 |
Polymer/polyol compositions made from preformed polymer/polyols, processes for making same and processes for making polyurethane products therefrom
Novel improved polymer/polyol composition made by polymerizing one or more ethylenically unsaturated monomers in situ in a blend of a polyol having a number average molecular weight of at least...
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4145487 |
Polyurethane foams containing reactive fibers and process for their manufacture
Fiber-containing polyurethane foams having improved compression properties, especially at deformations of greater than 50%, are obtained by incorporating in the foam-forming composition from 0.1 to...
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4143014 |
Novel compositions
Storage stable aqueous solutions derived from polymethylene polyphenyl polyisocyanates are described, which solutions are useful as sealant coating compositions for wood and other substrates and,...
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4143002 |
Chalk-resistant, medium to dark colored polyurethanes, polymer/polyol and polyisocyanate compositions for use in producing same and methods for making said polyurethanes
Improvements in polymer/polyol compositions which are convertible by reaction with polyisocyanates to polyurethanes which are pigmented to a medium to dark color and which inherently chalk upon...
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4140667 |
Graft copolymers from vinyl monomers and unsaturated polyols containing alkenyl aryl constituents and polyurethanes prepared therefrom
Graft copolymers of vinyl monomers and unsaturated polyols are described. These copolymers are prepared by the polymerization of an ethylenically unsaturated monomer, or a mixture of such monomers,...
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4137360 |
Microporous sheets and a process for making them
A method is provided for making microporous, vapor-permeable polyurethane sheets by coagulating a polyurethane in a polar solvent with a non-solvent for the polyurethane, wherein a polyurethane...
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4136238 |
Non-flammable and optionally electrically conductive organo-silicate polymers and process for preparing same
This invention relates to a process for preparing organosilicate polymers by reaction of a water glass solution with a compound having at least two isocyanate groups. The reaction is carried out in...
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4129710 |
Fire retardant copolymer of triallyl phosphate and a bis (hydrocarbyl) vinylphosphonate
A fire retardant additive for a polyurethane foam comprising a copolymer of: (1) an allyl group containing compound having the formula (CH 2 CHCH 2 O) 2 P(O)A, where A is either OR or R, R...
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4127516 |
Hydrophilic polyurethane foams with good wet strength
Disclosed herein is a polyurethane foam having good wet strength. The foam is prepared by reacting a urethane prepolymer with large amounts of water containing a poly(amino)urea and optionally...
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4125487 |
Non-cellular and cellular composites of polyurethanes and vinyl polymers
Polyurethane/vinyl polymer composites are prepared without the requirement of the application of an external source of heat by the admixture of a composition comprising (A) a polyether polyol...
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4122056 |
Emulsion polymerization of ethylenically unsaturated monomers in hydroxy-terminated organic compounds
Finely-divided dispersed solids are prepared by the emulsion polymerization in the presence of a free radical catalyst of a major amount of an ethylenically unsaturated monomer or mixture of...
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4119586 |
Polymer/polyol compositions, processes for making same and processes for making polyurethane products therefrom
Novel improved polymer/polyol compositions made by polymerizing, in the absence of any alkyl mercaptan, one or more ethylenically unsaturated monomer substantially free of bound halogen in situ in...
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4119582 |
Process for manufacturing high-resilient flexible urethan foams
A process for manufacturing high-resilient flexible urethan foams characterized by, reacting and foaming polyalkylene ether polyol and an organic polyisocyanate in the presence of a blowing agent,...
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4116893 |
Impact energy-absorbing urethane foam
An impact energy-absorbing, relatively low density, urethane foam for use in automobile bumpers has a high content of urea linkages and is relatively temperature insensitive, i.e. gives...
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4111865 |
Polymer/polyols and polyurethane forms and elastomers therefrom
This invention relates to novel polymer/polyol compositions consisting essentially of a polyol and a polymer of an unsaturated monomer polymerized in the polyol. The polyols in the novel...
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4110272 |
Formation of high-resilience urethane foam in the presence of sulfolanyloxy alkyl-polyalkylsiloxanes
The formation of high-resilience polyurethane foam is provided by the use, as the foam-stabilizing component, of a particular class of sulfolanyloxyalkyl-polyalkylsiloxanes which consist...
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4107100 |
Porous, substantially foam-free composites
This invention deals with porous, substantially foam-free composite material of grainy solid material particles of a certain grain size, which is solidified with a binder mixture of...
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4107101 |
Process for the production of crosslinked, urethane-containing plastics
The instant invention relates to a process for the production of crosslinked plastics comprising reacting organic polyisocyanates, organic polyhydroxyl compounds and olefinically unsaturated...
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4104236 |
Liquid polymer/polyols and polyurethane elastomers based thereon
This invention relates to novel liquid polymer/polyol compositions consisting essentially of: (1) from 45 to 90 wt.% of a polyoxypropylene polyol having a molecular weight of at least 1500 and (2)...
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4102831 |
Imparting anlsotropy to foams by orienting added fibers whereby said fibers become parallely aligned
This invention relates to a method of imparting anisotropy to polymeric foams and to the resultant products. By this invention enhanced mechanical properties are produced in polymeric foams such...
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4101471 |
High resiliency foam with improved load bearing ability by use of organotin mercaptides
The load-bearing characteristics of high resiliency polyurethane foams, as expressed by the loading required to obtain a 65% reduction in thickness, are significantly improved using as the gel...
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4098733 |
Composites of polyurethanes and vinyl polymers
Polyurethane and vinyl polymer composites are rapidly prepared without the requirement of the application of an external source of heat by the admixture of a composition comprising (A) a...
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4097426 |
Curing agents for polyurethane foams and elastomers and process of use
A curing agent for polyurethane which has a melting point at most 110° C and comprises a mixture of at least two compounds of the general formula: ##STR1## Wherein n is zero or a positive integer....
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4096101 |
Process for the production of chemically after-cross-linked polyurethane resins
This invention relates to a process for making optionally cellular cross-linked elastomeric polyurethane resins from (a) polyisocyanates, (b) higher molecular weight polyhydroxyl and/or...
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4094868 |
Azo di-ester polyols for graft copolymerization
Compounds containing an azo-linkage connecting two similar polyol esters constituents are described. These azo di-ester polyols are prepared by the direct esterification of azo diacids with...
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4093573 |
Low-viscous, stable polymer dispersions and polyurethanes prepared therefrom
Low-viscous, stable polymer dispersions are prepared by blending a hydroxy-containing finely-divided solid polymer with a polyol having an equivalent weight between 500 and 10,000. The resulting...
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4093569 |
Polyurethane resins produced from active hydrogen containing material which is a dispersion of polyisocyanate-polyaddition products in hydroxyl containing compounds as dispersing agents
This invention relates to the use of certain finely divided, stable and relatively low viscosity dispersions of polyisocyanate polyaddition products in compounds having hyroxyl groups. The...
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4092275 |
Polyurethane resins prepared from active hydrogen containing material which is a dispersion of polyisocyanate-polyaddition products in hydroxyl containing compounds as dispersing agents
The instant invention relates to the use of stable, relatively low viscosity dispersions of polyisocyanate-polyaddition products in hydroxyl containing compounds as dispersing agents in the...
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4089835 |
Stable polyurethane dispersions and process for production thereof
The instant invention is directed to stable dispersions and the process of their manufacture. The stable dispersions of the instant invention comprise polyureas and/or polyhydrazo-dicarbonamides as...
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4072773 |
Porous sheet material and its production
A porous sheet material made of a polymeric material comprising mainly a polyurethane elastomer, which comprises a base layer of vertically penetrating vesicular structure and a surface layer of...
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4061701 |
Manufacture of soft and resilient foams
Composite soft and resilient foams are manufactured by injecting a foamable mixture of polyisocyanates, polyols, water or inert blowing agents and, if appropriate, auxiliaries, under pressure into...
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4057519 |
Sodium silicate extended polyurethane foam
Polyurethane foam products having relatively noncombustible properties, low flame spread ratings and low smoke generating tendencies when exposed to fire can be produced by combining aqueous sodium...
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4049590 |
Manufacture of polyurethane compositions
Polyurethane compositions -- which may or may not be foamed -- having improved mechanical properties are manufactured from organic polyisocyanates, polyhydroxy compounds and one or more at least...
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4042537 |
Process for the production of polyurethane foams
The instant invention is directed to polyurethane foams and the process for their manufacture, wherein an organic polyisocyanate is reacted, in the presence of a blowing agent, with a dispersion of...
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4032485 |
Polyurethane foams based on mixed itaconic acid polyesters
A process for preparing polyurethane foams excellent in durability, elasticity and dimensional stability is disclosed. An unsaturated polyester is prepared through the reaction of an unsaturated...
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4029611 |
Carbodiimide-isocyanurate foams modified with polyfurfuryl alcohol polymers
Rigid cellular foams are prepared by catalytically condensing an organic polyisocyanate in the presence of (a) a carbodiimide-promoting catalyst, (b) a trimerization catalyst, and (c) a...
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4026837 |
Polymeric acid salts as isocyanurate foam catalysts
New catalysts for isocyanurate foams comprising the potassium salt of a carboxy-terminated butadiene-acrylonitrile copolymer. The novel foams are obtained by the polymerization of an aromatic...
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