|
Match
|
Document |
Document Title |
|
|
3905945 |
Preparation of oxazolidone polymers in the presence of a magnesium halide/phosphine oxide complex
A process for preparing oxazolidones is provided by reacting an epoxide with an isocyanate in the presence of a catalytic amount of a magnesium halide/phosphine oxide complex. The reaction products...
|
|
|
3904665 |
1-Isocyanato-2-isocyanatomethyl-cyclopentane
The invention provides 1-isocyanato-2-isocyanatomethyl-cyclopentane which is a valuable starting material for the manufacture of polyurethanes, especially polyurethane lacquers. The present...
|
|
|
3903126 |
Manufacture of biuret group-containing polyisocyanates
Biuret group-containing polyisocyanates are produced by reacting aliphatic and/or cycloaliphatic diamines with polyisocyanates.
|
|
|
3903052 |
Polymers containing alkoxysilyl-substituted biuret groups and processes for their preparation
New polyurethanes which contain silyl-substituted biuret groups in side chains are described. These polyurethanes have high storage stability, high reactivity and can be crosslinked by moisture...
|
|
|
3903124 |
Methylene-bridged diaryl diisocyanates
Selected methylene-bridged diaryl diisocyanates are disclosed which are useful in the production of cellular and non-cellular polyurethanes.
|
|
|
3901852 |
Thermoplastic polyurethanes prepared from 4,4'-methylenebis (phenyl isocyanate)
Thermoplastic elastomers having excellent physical properties which are retained at low temperatures are prepared from 4,4'-methylenebis(phenyl isocyanate), polyethylene glycol (M.W. = 600 - 3000)...
|
|
|
3899467 |
Polyurethanes from 3,3-'dimethyl-diphenyl-4,4'-diisocyanate polyester diols and bis(hydroxyethyl ether) of hydroquinone
Polyurethane elastomers characterized by high thermostability and thermoplasticity are obtained by reaction of 3,3'-dimethyldiphenyl-4,4'-diisocyanate with a polyester diol (polycaprolactone diol...
|
|
|
3898197 |
BLOCKED POLYISOCYANATE COMPOSITION FOR THE TREATMENT OF KERATINOUS MATERIALS
A bisulphite addition product of a polyisocyanate and/or polyisothiocyanate prepolymer, said addition product having on an average at least two isocyanate-bisulphite or isothiocyanate-bisulphite...
|
|
|
3896158 |
N,N-dialkylalkanolamines
Certain dialkylaminoalkylurethanes, formed by the reaction of isocyanates with certain N,N-dialkylalkanolamines, are used as latent catalysts for the cross-linking or trimerization of...
|
|
|
3894994 |
Continuous method of making polyurethane powder
Continuous method for preparing polyurethane resin directly in finely divided form in which method a plurality of reagents which combine to form polyurethane resin, and of which at least one is a...
|
|
|
3893978 |
Pulverulent coating agents based on blocked aromatic diisocyanates
Object of the invention is a pulverulent coating agent curing at a temperature above 130°C comprising (a) at least one polymer containg hydroxyl groups and having a softening point of at least...
|
|
|
3892715 |
Polyurethanes with a new catalyst system
A new catalyst system for the production of polyurethanes is provided which involves reacting a polyol and a polyisocyanate such that when the polyisocyanate and the polyol are brought into...
|
|
|
3887525 |
Process for preparing solvent-soluble polyurethanes
A process for the manufacture of solvent-soluble polyurethane elastomers by reacting together a polymeric polyol, a low molecular weight diol and an organic diisocyanate in amount at most...
|
|
|
3887507 |
Process for preparing triketoimidazolidines and product
A process for the manufacture of modified N,N'-substituted 2,4,5-triketoimidazolidines which comprises reacting (a) at least one oxamidic ester having the group --NH--CO--CO--OR v wherein R v is...
|
|
|
3886124 |
Condensant and polyesters and polyurethanes prepared from hydroxymethyl-phenylindans
A composition of matter comprising at least one compound selected from the group consisting of: ##SPC1## Wherein n is a positive integer; R 1 , r 2 and R 3 are methyl; R 4 , r 5 , r 6 and R 7 ...
|
|
|
3884951 |
Thioether isocyanate adducts
Novel thioether isocyanates and isothiocyanates can be produced by the addition of thiols to the olefinic bonds of allyl isocyanates and isothiocyanates. They are useful as pesticides, especially...
|
|
|
3883483 |
Electrodepositable cationic thermosetting coating compositions
This invention relates to cationic electrodepositable coating compositions comprising an aminoalkyl monomer, a reaction product comprising a half-blocked diisocyanate and an ethylenically...
|
|
|
3883577 |
Process for preparing high molecular weight polyisocyanates
There is disclosed an improvement in the process for producing high molecular weight polyisocyanates by the reaction of volatile diisocyanate and an active hydrogen-containing substance. The...
|
|
|
3882088 |
Polyesters bearing polyethylenimine terminal groups
Polyesters represented by the general structure ##SPC1## Useful as film-formers in coating compositions.
|
|
|
3882089 |
Vulcanizing natural or synthetic rubber with a diurethane decomposable to diisocyanate
The invention provides a method of vulcanizing a natural or unsaturated synthetic rubber by means of a compound having the general formula: R(.NH.CO.O.N=Q=O) m (.NCO) n (.NH.CO.Y) p Where m ≥...
|
|
|
3880800 |
Polyurethane plastic compositions containing bis-aryloxy flame retardants
Plastic compositions containing polyurethanes and bis-aryloxy compounds having the formula ##SPC1## Wherein aryl is from the group ##SPC2## Z is bromine or chlorine, m and m' are integers having a...
|
|
|
3880810 |
Adhesive compositions containing aromatic nitro compounds
This invention relates to adhesive compositions containing an organic isocyanate, natural and synthetic elastomers and resins and as an adhesion promoter an aromatic nitro compound.
|
|
|
3878235 |
Chlorine containing methylene bridged diaryl diisocyanates
Selected chlorine-containing methylene-bridged diaryl diisocyanates are disclosed which are useful in the production of cellular and non-cellular polyurethanes.
|
|
|
3875190 |
Glycidylurethane compounds, processes for their manufacture and their use
New glycidyl-urethane compounds are obtained by glycidylating certain N-phenylurethanes in a known manner. The new glycidyl-urethane compounds can be cured with the customary curing agents for...
|
|
|
3875086 |
Urethane containing monohydric polyether chain stoppers
The use of a monohydroxy polyether chain stopper having a hydroxyl number of from about 20 to about 112 prepared by reacting a monohydroxy initiator with propylene oxide or propylene oxide and...
|
|
|
3871911 |
NON-DISCOLORING PAINTED POLYURETHANE
The product which results from curing an NCO-terminated urethane prepolymer with a methylene dianiline-salt complex at an NCO/NH 2 ratio greater than one is coated with a flexible coating or paint.
|
|
|
3872058 |
Fluorinated polyurethane stain repellents
Fluorinated polyurethanes, useful as stain repellents for textiles, selected from the class consisting of (A) the reaction product formed by sequentially reacting (a) an organic polyol containing 2...
|
|
|
3872050 |
POLYURETHANE LIQUID CRYSTAL DISPERSION SYSTEM AND DEVICES
Liquid crystal materials, particularly cholesteric liquid crystal materials, are protected against dust, contamination and the like by being dispersed as discrete naked aggregates in polyurethane...
|
|
|
3870683 |
Light stable polyurethanes based on dicyclohexyl and diisocyanates
Polyurethanes may be formed from certain dicyclohexyl diisocyanates. That formed from 4,4'-dicyclohexyl diisocyanate is light stable.
|
|
|
3870684 |
Preparation of cross-linked particles of polyurethane or polyurea containing ionic groups
Aqueous dispersions are prepared by dispersing in an aqueous polyamine solution an NCO terminated polyurethane or polyurea containing ionic groups.
|
|
|
3869428 |
Enamel composition for the manufacture of solderable enameled wires
An enamel composition containing imide and urethane groups useful for the manufacture of solderable enamel wires consisting of the reaction product of an aromatic hydroxyl compound and an aromatic...
|
|
|
3868350 |
Thermoplastic polyurethane polyurea powders
Thermoplastic polyurea powders and sedimenting aqueous solutions of the same wherein the powders have A. an average particle diameter of from 10 to 1,000 μ, B. a melting range of from 100° to...
|
|
|
3862921 |
Process for the production of polymer
A process for the production of polymer from a prepolymer and a curing agent comprising the steps of: heating and degassing the prepolymer; storing the prepolymer in a first storage tank at a...
|
|
|
3860565 |
ENCAPSULATED ISOCYANURATE CATALYST
A one-part, room temperature-latent isocyanate-catalyst system trimerizable to polyisocyanurate is formed comprising an aromatic isocyanate having dispersed throughout liquid microcapsules of a...
|
|
|
3860673 |
ELASTOMERIC COMPOSITIONS
Improved elastomeric compositions, useful as adhesives or surface coating compositions, comprise (A) a synthetic or naturally-occurring elastomer, e.g., chloroprene polymer; (B) an organic...
|
|
|
3859382 |
METHOD OF MAKING NYLON CONSTITUENT BLOCK COPOLYMERS OF PREDETERMINED PLIABILITY AT LOW TEMPERATURES
Polymers of anionically polymerized monomers are made with an organo alkali metal initiator and then reacted with either polyisocyanates or polyisothiocyanates which remove the alkali atoms and...
|
|
|
3859162 |
PRE-PREG MATERIALS, CHEMICALLY INTEGRAL COMPOSITE FOAM STRUCTURES PREPARED THEREFROM, AND METHODS OF PREPARATION
Pre-preg materials and flexible tapes comprising polycarbodiimide prepolymers and a fiber reinforcing material, and reinforced, chemically integral, composite foam structures prepared from said...
|
|
|
3856757 |
LIGHT-SENSITIVE HIGH POLYMER COMPOUND AND PROCESS FOR THE PREPARATION THEREOF
A process for preparing a light-sensitive high molecular weight polymer compound, which comprises reacting an α, β-unsaturated carboxylic acid with an aliphatic or aromatic diepoxide to form the...
|
|
|
3856720 |
CYCLIC NITRILE ADDUCT-EPOXIDE COMPOSITIONS
Coating, elastomer and foam polyurethane type compositions are produced from cyclic nitrile adducts and epoxides or a combination of epoxides with polyols or polythiols having 2 or more hydroxyl or...
|
|
|
3855159 |
POLYURETHANE FOAM SYSTEM
A rapid foaming polyurethane system comprising a cyclic nitrile compound, an organic polyhydroxyl compound, an organic polyamine compound, and a condensation-rearrangement catalyst is presented....
|
|
|
3853821 |
SOLID STATE POLYMERIZATION OF POLYESTERS IN THE PRESENCE OF A DIISOCYANATE
There is disclosed an improvement in the solid state polymerization of melt polymerized polyester resin to produce polyester resins having intrinsic viscosities of at least 1.0 as determined in a...
|
|
|
3843587 |
POLYAMIDE-IMIDE RESINS PREPARED FROM THE REACTION OF AROMATIC DIISOCYANATES WITH MIXTURES OF POLYCARBOXYLIC ACIDS AND ANHYDRIDES
A polyamide-imide is made from (1) an aromatic diisocyanate, (2) an aromatic dicarboxylic acid (3) an aromatic dianhydride and (4) trimelletic anhydride. The products are useful for coating...
|
|
|
3839284 |
POLYURETHANES PREPARED FROM 2,3,5,6-TETRAMETHYL-P-XYLYLENE DIISOCYANATE
Disclosure of preparation of novel diisocyanates and polyurethanes (particularly polyester- and polyether-urethane elastomers) prepared therefrom.
|
|
|
3801421 |
RESILIENT COMPOSITE USEFUL AS SURFACING FOR ATHLETICS
A resilient composite material useful, for example, in the form of a layer as a surfacing or paving for athletic activities, comprising particulate vulcanized rubber bonded with polyisocyanurate...
|
|
|
3801272 |
WOOL TREATING PROCESS
A process for teating wool and other proteinaceous material to render it shrinkproof which comprises treating the proteinaceous material with a polymerizable treating solution which comprises a...
|
|
|
3783152 |
N-ARYLENE POLYCARBAMATE
The invention disclosed is for a method of preparing polythioether-polyurethane products from a new and novel class of polyene compositions which are formed as the reaction product of a monomeric...
|
|
|
3773695 |
ISOCYANURATE AND HALOGEN-CONTAINING POLYISOCYANATES
New halogenated polyisocyanates containing isocyanurate rings are prepared in a single stop by reacting chlorinated organic compounds, especially chloromethylated aromatics, with metal iodide or...
|
|
|
3755242 |
POLYCARBODIIMIDE PREPOLYMERS
A new class of isocyanate-terminated solid, soluble, fusible, storable prepolymers suitable for producing high molecular weight polycarbodiimides; formed from polycarbodiimide-forming...
|
|
|
3755215 |
PREPARATION OF OIL-MODIFIED POLYMERS FROM A POLYISOCYANATE COMPOSITION
A polyisocyanate composition having beneficial utility in the manufacture of polyurethane foams and other polymer products, and comprising certain proportions of tolylene diisocyanate (TDI), a...
|
|
|
3730953 |
PROCESS FOR PRODUCING HIGH MOLECULAR POLYURETHANES BY REACTING OXADIAZINONES WITH POLYOLS IN THE PRESENCE OF AN ORGANOTIN CATALYST
A process for producing high molecular polyurethane compounds having wide uses as coating materials, resins and foams. The high molecular compounds are produced by reacting an oxadiazinone...
|