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Document Title |
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8182647 |
Hydrophilic biodegradable adhesives
A moisture-curable and biodegradable adhesive that includes the reaction product of: (a) an isocyanate component having an average functionality of at least 2; (b) an active hydrogen component...
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8158817 |
Synthesis of acylureas and composition comprising acylureas
The invention relates to a process for the synthesis of a polyisocyanate composition comprising acylureas. According to the invention, a starting composition comprising a compound having at least...
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8148488 |
(Block) polyisocyanate composition and coating composition using same
Disclosed is a polyisocyanate composition which is excellent in both curability and drying characteristic. The polyisocyanate composition contains at least one compound selected from aliphatic...
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8143364 |
Composition made from a diisocyanate and a monoamine and process for preparing it
Process for preparing a composition by reacting a polyisocyanate, a monoalkoxy polyoxyalkylene monoamine and water. The composition and its use in making cellular products are claimed as well.
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8138299 |
Thermoplastic polyurethanes
Thermoplastic polyurethanes which have a hardness of from 50 Shore A to 80 Shore A and are based on (b) polyester diols, wherein a polyester diol (b1) based on butane-1,4-diol and at least one...
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8134014 |
Preparation of uretdione polyisocyanates
The invention relates to the use of specific pyridines as catalysts for the dimerization of isocyanates (uretdione formation) and a process for preparing polyisocyanates having a high content of...
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8128837 |
Latent curing agent for epoxy resin and method for manufacturing the same
A latent epoxy resin curing agent is provided which exhibits excellent solvent resistance and low-temperature fast-curing ability, and contains an imidazole-based compound as a main component. In...
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8119799 |
Method for the production of polyisocyanates comprising isocyanurate groups and use therof
The present invention relates to novel catalysts for preparing polyisocyanates having isocyanurate groups by a partial trimerization of (cyclo)aliphatic diisocyanates.
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8110621 |
Castor oil-based polyol emulsions
A polyol emulsion of castor oil and monoepoxides is combined with methylenediphenyl diisocyanate (MDI) and cement to produce a polymer cement.
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8097190 |
Optical resin composition having excellent impact resistance and method for fabricating optical lens using the same
An optical resin composition with superior impact resistance and a method for producing an optical lens from the composition are disclosed. In one embodiment, the optical resin composition for a...
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8076518 |
Chain extenders
This invention provides chain extender compositions. These compositions comprise (i) an aliphatic secondary diamine, and(ii) a component selected from the group consisting of: (a) a cycloaliphatic...
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8058382 |
Uretdione formation in solution
The invention relates to a process for preparing polyisocyanates having a high uretdione group content by phosphine-catalysed isocyanate oligomerization in the presence of organic carbonates and/or...
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8039574 |
Method for the preparation of low-viscosity (poly) isocyanates
A low viscosity polyisocyanate composition containing at least one isocyanate dimer having a uretidinedione unit is prepared from a reaction medium containing at least one isocyanate monomer in...
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8022200 |
Process for the preparation of liquid, storage-stable organic isocyanates of low color number containing carbodiimide and/or uretonimine groups
The invention relates to a process for the preparation of liquid, storage-stable isocyanate mixtures which are characterized by a low color number and which contain carbodiimide (CD) and/or...
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8017720 |
Sulfur-containing oligomers and high index polyurethanes prepared therefrom
The present invention provides polythiol oligomer formed by the reaction of at least two or more different dienes and at least one or more dithiol wherein stoichiometric ratio of the sum of the...
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7906607 |
Isocyanate group-terminated urethane prepolymer, process for producing the same, and adhesive comprising the urethane prepolymer
It is an object of the present invention to provide an isocyanate group-terminated urethane prepolymer which has a low viscosity at melting and a process for producing the same, and an adhesive...
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7745659 |
Process for the production of liquid, storage-stable organic isocyanates with a low colour index having carbodiimide- and/or uretone imine groups
The invention relates to a process for the production of liquid, storage-stable isocyanate mixtures with a low color index having carbodiimide-(CD) and/or uretone imine (UI) groups, the isocyanate...
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7635742 |
Modified isocyanates
Modified stable polyisocyanates are described having at least one isocyanate function modified by a group having cross-linking functionality. The modified stable polyisocyanates may be prepared by...
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7608207 |
Method for preparing a photochromic polyurethane latex and application to ophthalmic optics
The method of the invention comprises: a) forming a hydrophilic polyurethane prepolymer with isocyanate end groups, by the polyaddition reaction of at least one polyol and at least one diisocyanate...
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7566406 |
Bonded foam product manufactured with vegetable oil polyol and method for manufacturing
A bonded foam product manufactured with a vegetable oil polyol is herein disclosed. The pre-polymer for use as a binder in the manufacture of a bonded foam product comprises an isocyanate and a...
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7553906 |
Dual cure systems
An organic polyisocyanate with at least one unsaturated functional group is capable of copolymerizing when exposed to actinic radiation. The polyisocyanate comprises structural units with the...
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7553963 |
Liquid partially trimerized and allophanized polyisocyanates based on toluene diisocyanate and diphenylmethane diisocyanate
This invention relates to storage-stable, liquid, partially trimerized and allophanized polyisocyanates having an NCO group content of 15 to 41% by weight, and comprising 5 to 85% by weight of...
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7524435 |
(Cyclo)condensation of isocyanate compounds
The use of a compound comprising a nitrogenous heterocyclic group with five cyclic members including, at least two nitrogen atoms, one of the nitrogen atoms bearing a hydrogen atom to promote the...
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7371807 |
Blocked biuretized isocyanates
The present invention is directed to blocked biuret group-containing polyisocyanate compositions, wherein the blocking agent is of the formula: wherein R1, R2, R3 and R4 may be the same or...
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7323532 |
Low-viscosity radiation-curing and thermally curing polyisocyanates
The present invention concerns a process for producing low-viscosity polyisocyanates or secondary products thereof, which carry activated, radiation-curable double bonds and can optionally also...
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7317112 |
Catalysts for selective isocyanate dimerization
A method of dimerizing isocyanates using sulphonamide anions as a dimerization catalyst for the isocyanates and also to a process for preparing oligomeric isocyanates using such catalysts.
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7288213 |
Method for preparing low viscosity tricondensate polyfunctional isocyanates
A method is described for preparing a tricondensate polyfunctional isocyanate composition, preferably having at least an isocyanurate and/or biuret group, which includes adding to a tricondensate...
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7268202 |
Polyisocyanate composition having allophanate group and high-solid coating material
A polyisocyanate composition comprising an allophanate group, which is obtained from an aliphatic diisocyanate(s), wherein in a state substantially free of a solvent and the aliphatic...
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7262231 |
Photosensitive amine generator, photocurable composition and photoreactive adhesive composition
The invention provides compounds which can generate amine by irradiation with light and are excellent both in photodecomposability and in reactivity and compatibility with amine-curable compounds,...
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7220814 |
Hydrophilicized blocked polyisocyanates
The present invention relates to new hydrophilicized blocked polyisocyanates, a process for preparing them and their use.
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7176271 |
Method for the production of highly functional, highly branched polyureas
A process for preparing high-functionality, highly branched polyureas comprises the steps a) reaction of an at least bifunctional capped diisocyanate or polyisocyanate with at least one at least...
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7129312 |
Adhesion promoters for monomer-free reactive polyurethanes
Polyurethane compositions are produced in a two-stage method. In a first step, a diol component with a molecular weight of less than 2000 is reacted with a monomeric diisocyanate with a molecular...
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7091341 |
Catalyst and a method for the trimerization of isocyanates
A method is described of preparing (poly)isocyanurate polyisocyanates by catalytic cyclotrimerization of isocyanates. A catalytic system is used which includes a cyclotrimerization catalyst based...
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7087676 |
Blocked polyisocyanates
Blocked polyisocyanates and one-component stoving systems containing these blocked polyisocyanates, and the preparation thereof and their use for the preparation of lacquers, paints, adhesives and...
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7071248 |
Adhesive additives and adhesive compositions containing an adhesive additive
Adhesive additives that are used in conjunction with polyisocyanate resins to form adhesive compositions. The adhesive additives contain castor oil, a mixture of castor oil and triglycerides, or a...
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7060817 |
Sulfonamide anions as catalysts for NCO oligomerization
The present invention relates to the use of sulphonamide salts as catalysts for oligomerizing isocyanates and also to a process for NCO oligomerization using the catalysts of the invention.
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7038003 |
Polyether allophanates stable towards discolouration
A process for preparing polyisocyanate prepolymers containing allophanate structural units that includes reacting a) one or more polyisocyanates withb) one or more polyetherpolyols containing less...
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7033522 |
Pulverulent, water-dispersible, blocked polyisocyanate adducts, a process for the preparation and their use
A blocked polyisocyanate adduct including 5 to 95% by weight of at least one isocyanate component having at least one NCO group, the isocyanate component selected from the group consisting of...
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7022257 |
Coating composition and floor material coated with said composition
A floor coating composition containing one or more unsaturated urethane compounds, which is(are) obtained from an isocyanate compound(s) and a hydroxyl compound(s) as starting materials, wherein at...
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6991746 |
Polymeric allophanates of diphenylmethane diisocyanate, perpolymers of these polymeric allophanates, and processes for the preparation of the polymeric allophanates and the prepolymers thereof
The present invention relates to a new high functionality MDI. In particular, this invention relates to polymeric allophanates based on diphenylmethane diisocyanate having an NCO group content of...
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6987158 |
Polyadducts containing uretidone groups
Polyaddition compounds containing uretdione groups prepared by reacting uretdione polyisocyanates formed from diisocyanates having exclusively secondary- and/or tertiary-attached isocyanate groups...
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6965007 |
Mixed masked (poly)isocyanates
A composition of at least partially masked isocyanates. The isocyanates are masked by at least two different masking agents, selected such that in the octanol test at 110° C., the ratio: ...
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6946538 |
Catalyst for isocyanate condensation, composition containing same, method for use, and resulting compositions
The invention concerns a method for catalytic (cyclo)condensation of monomer isocyanates, characterised in that it comprises: a) reacting starting monomer isocyanates with a catalyst comprising a...
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6887399 |
Polymeric allophanates of diphenylmethane diisocyanate, prepolymers of these polymeric allophanates, and processes for the preparation of the polymeric allophanates and the prepolymers thereof
The present invention relates to a new high functionality MDI. In particular, this invention relates to polymeric allophanates based on diphenylmethane diisocyanate having an NCO group content of...
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6878795 |
Alternative moisture cure catalysts and cold curing polyisocyanate adhesives prepared therefrom
Cold curing polyisocyanate adhesive compositions suitable for use in the preparation of engineered lumber composites. Additionally provided are catalysts comprising tertiary amine alkoxylates that...
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6872797 |
Copolycarbonate diol and thermoplastic polyurethane obtained therefrom
A copolycarbonate diol comprising: (a) recurring units each represented by the following formula (1): (b) recurring units each independently represented by the following formula (2): wherein n is...
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6852823 |
Polyurethane and polyurethane-urea elastomers from polytrimethylene ether glycol
Polyurethanes or polyurethane-ureas prepared from: (a) polytrimethylene ether glycol having a number average molecular weight in the range of about 1,000 to about 4,000 and unsaturated end groups...
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6849705 |
Bifunctional polyaddition compounds as crosslinkers for polyurethane powder coatings
A polyaddition compound having uretdione and carboxyl groups, and having a melting range of between 40 and 200° C., a free NCO group content of from 0 to 5% by weight and an NCO functionality of ...
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6843933 |
Blocked polyisocyanates
Blocked polyisocyanates, their preparation and use in one-component coating materials. In organic polyisocyanates having at least two isocyanate groups, the isocyanate groups are blocked with OH...
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6830705 |
Liquid stable MDI prepolymers and liquid stable curative systems suitable for room temperature casting which yield high performance urethane elastomers
The invention relates to liquid stable MDI prepolymers and curative systems which are suitable for room temperature casting and which yield high performance low-shrinkage urethane elastomers upon...
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