Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 7300997 | High-reactivity polyurethane powder coating compositions based on epoxy-terminated polyaddition compounds containing uretdione groups Polyurethane powder coating compositions based on epoxy-terminated polyaddition compounds having uretdione groups, which cure at low baking temperatures, a process for preparing such compositions, and their use for producing plastics, especially polyurethane powder ... | 11/27/2007 |
| 7285600 | Reagents for heat activated polymer crosslinking The present invention is directed to nitrile-oxide precursor compounds, and their preparation and use as an irreversible cross-linking agent in polymers having appropriate functionality, i.e., alkenes, alkynes nitriles, and isocyanates. The present invention is also... | 10/23/2007 |
| 7232876 | Phosphorus-containing urethane(meth)acrylate compounds and photosensitive compositions A phosphorus-containing urethane (meth)acrylate compound obtained by reacting (A) a polyol compound comprising (A1) a phosphorus-containing polyol having a phosphorus atom, with (B) a bifunctional or greater polyisocyanate and (C) a hydroxyl group-containing (meth)a... | 06/19/2007 |
| 7199207 | Neutral-coloured 1K polyurethane adhesive A polyurethane prepolymer obtainable by reacting at least one aromatic polyisocyanate having symmetrical substitution of NCO groups and at least one aromatic polyisocyanate having asymmetric substitution of NCO groups, the fraction of aromatic polyisocyanate having ... | 04/03/2007 |
| 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 weight of less than 500 and the unreacted monomeric diisocyanate is re... | 10/31/2006 |
| 7129288 | Polyurethanes containing sulphide groups, polymeric mixtures based thereon, production and use thereof Novel polyurethanes containing sulfide groups which comprise at least one group of the general formula I in the polymer main chain and/or at least one group of the general formula II incorporated at the chain end: —X—A—S—B—Y— (I) ... | 10/31/2006 |
| 7115697 | Adhesive for high-temperature laminate An adhesive composition comprising a two-component system comprising A) at least one polyester urethane containing at least two isocyanate groups, which polyester urethane may be obtained by reaction of one or more polyesters 1 with aliphatic diisocyana... | 10/03/2006 |
| 7071280 | Adhesive and packaging laminate using the same Disclosed is an adhesive and a packaging laminate produced by using the same. The adhesive contains a polyisocyanate and a partially acid-modified polyol which is a product of reacting a polyol with anhydrotrimellitic acid and an anhydrotrimellitate ester at a ratio... | 07/04/2006 |
| 7022804 | Moisture-crosslinkable hot-melt adhesive based on polyurethane prepolymer The invention relates to a moisture-crosslinkable hot-melt adhesive which is composed of a polyurethane prepolymer obtained by polyaddition of at least one polyol to at least one isocyanate chosen from the group of diisocyanates trimerized as isocyanurates and react... | 04/04/2006 |
| 7005482 | Self-supporting reactive hot-melt adhesive element A self-supporting reactive hot-melt adhesive element of a reactive one-component hot-melt adhesive which is solid at room-temperature. The adhesive element comprises at least one isocyanate being solid or liquid at room-temperature; and at least one isocyanate-react... | 02/28/2006 |
| 6994909 | Isocyanate-based laminating adhesives The invention relates to a laminating adhesive including a reaction product of at least one polymeric polyol (part A) and at least one NCO terminated polyurethane prepolymer (part B). The part A includes a reaction product of at least one alkylene diol; at least one... | 02/07/2006 |
| 6908981 | Laminate adhesive A laminate adhesive that can suppress elution of a low molecular weight compounds of a composite film into the content, so as to prevent the inherent properties or performances of the content from being spoiled by the low molecular weight compounds. In the laminate ... | 06/21/2005 |
| 6903167 | Polyurethane prepolymers comprising NCO groups and a low content of monomeric polyisocyanate Polyurethane prepolymers containing NCO (isocyanate) groups and having a low content of monomeric polyisocyanate, processes for their production and uses employing these prepolymers. The polyurethane prepolymers of the invention are produced from by a reaction emplo... | 06/07/2005 |
| 6881788 | Polyurethane resin water dispersion and aqueous polyurethane adhesive Polyurethane resin water dispersion being good in storage stability and excellent in initial adhesion and resistance to moist heat, and aqueous polyurethane adhesive employing the polyurethane resin water dispersion. The polyurethane resin water dispersion is produc... | 04/19/2005 |
| 6809171 | Monomer-poor polyurethane bonding agent having an improved lubricant adhesion An isocyanate bonding agent which has a low content of highly volitile residual monomers which forms little migrate and has improved lubricant adhesion is provided. The bonding agent comprises prepolymers having isocyanate groups of different reactivities or the rea... | 10/26/2004 |
| 6806341 | Method for forming an adhesive layer using hydrophilic polyurethanes related applications A method of applying an adhesive to a substrate is disclosed which utilizes a hydrophilic, high molecular weight, nonionic polyurethane adhesive. The polyurethane adhesive is soluble in water and a 1% by weight solution of the adhesive in water at 20% has a specific... | 10/19/2004 |
| 6737163 | Low-cure powder coatings and methods for using the same Low-cure powder coating compositions are disclosed. The compositions comprise a polyepoxide and a material having the structure wherein R1 is an organic radical having 6 to 25 carbon atoms; R2 is an... | 05/18/2004 |
| 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 process include various polyurethane products including foams, coatin... | 03/16/2004 |
| 6649693 | Polyurethane and water-compatible polyurethane resin The present invention provides a polyurethane exhibiting a superior adhesive property, bonding property, weather resistance, water resistance, and the like, and comprising in a molecule: an acidic group which is neutralized by a basic compound; and a stru... | 11/18/2003 |
| 6630561 | Crystalline polyesterpolyol and hot-melt adhesive A crystalline polyesterpolyol having a number average molecular weight of 1,500 to 15,000 and obtainable from a polybasic carboxylic acid component and an aliphatic hydrocarbon diol component comprising 1,10-decanediol and/or 1,12-dodecanediol, and a hot-... | 10/07/2003 |
| 6624283 | Adhesive for rubber compositions, process for its preparation and articles comprising this adhesive The present invention relates to an adhesive usable at ambient temperature to bond together two cross-linked rubber compositions, to a process for preparing the adhesive, to a tread of a tire cover and to such a cover comprising this adhesive, and to an a... | 09/23/2003 |
| 6617031 | Isocyanate-based laminating adhesives The invention relate to a method of laminating flexible packaging, articles of manufacture and bonded laminates. The method comprises employing a laminating adhesive comprising an isocyanate-based composition comprising the reaction product of at least on... | 09/09/2003 |
| 6586553 | Polyurethane molding mass that can be processed thermoplastically A polyurethane molding mass that can be processed thermoplastically, that is free of by-products capable of migration, and demonstrates a high level of light-fastness. A polyurethane molding mass that can be processed thermoplastically, that is free of cy... | 07/01/2003 |
| 6552097 | Prepolymer compositions for insulating foams A prepolymer composition for producing polyurethane insulating foams from pressure tanks which consists of a prepolymer component with at least one PU prepolymer with a content of NCO groups of 4 to 20 wt % and usual additives, as well as a propellant com... | 04/22/2003 |
| 6538095 | Solvent-free two-component curable adhesive composition The solvent-free two-component adhesive composition of the present invention comprises a polyol component (A) and a polyisocyanate component (B), and the viscosity of the mixture at 80° C. immediately after the point of time the components (A) and (B) ar... | 03/25/2003 |
| 6525162 | Polyols, polyurethane systems and polyurethane reactive hot melt adhesives produced therefrom A new polyol family for the manufacture of novel polyurethane systems, preferably of polyurethane reactive hot melt adhesives is disclosed. The polyol(s) are reactive modifiers that enhance the properties of polyurethane systems. The inventive polyols are... | 02/25/2003 |
| 6518359 | Polyurethane-based pressure-sensitive adhesives, systems for such adhesives, articles therefrom, and methods of making Polyurethane-based pressure-sensitive adhesives (PSAs) of the invention comprise the reaction product of: a polyol component comprising at least one diol having a weight average molecular weight of at least about 2,000, wherein the at least one diol compr... | 02/11/2003 |
| 6498210 | Silylated polyurethanes for adhesives and sealants with improved mechanical properties The silylated polyurethane polymer includes a polyurethane prepolymer having between greater than about 50 to about 95% of NCO groups terminated with silane capping agents. The polymer has an improved mechanical properties. The polymer can also have betwe... | 12/24/2002 |
| 6462163 | Solventless laminating adhesive with barrier properties A solventless urethane adhesive layer which proves excellent oxygen and moisture barrier properties is formed from the reactio of A) a low molecular weight polyester formed from a single species of linear aliphatic diol and a single species of dicarboxyli... | 10/08/2002 |
| 6433059 | Method for preparing binder materials containing diisocyanates A method for preparing a binder material for cellulosic products which comprises providing a polymeric resin base material preferably comprising 4,4' or 2,4' methylene diphenylene diisocyanate in the range of from about 20% to about 55% by weight and a fu... | 08/13/2002 |
| 6423810 | High strength, long-open time structural polyurethane adhesive and method of use thereof Disclosed is a two-part polyurethane structural adhesive and method of bonding structural components, that exhibits at least 25 minutes of open time at 32° C. in large beads and cures to high strength under ambient conditions. The adhesive composition in... | 07/23/2002 |
| 6410635 | Curable coating compositions containing high aspect ratio clays Provided are curable coating compositions comprised of any of a variety of film-forming polymers containing reactive functional groups, a curing agent containing functional groups which are reactive with the functional groups of the polymer, and an exfoli... | 06/25/2002 |
| 6399735 | Hydrophilic polyurethanes A hydrophilic, high molecular weight nonionic polyurethane, characterized by solubility in water and by a specific viscosity of at least 0.4 (1% by weight solution at 20° C.) is provided. Examples of such polyurethanes are those characterized by the foll... | 06/04/2002 |
| 6359100 | Methods of preparing polyurethane adhesives, adhesives produced thereby and medical devices employing the same A polyurethane adhesive composition preferably having pressure sensitive characteristics that is non-cytotoxic and methods of making the same which is especially useful for medical applications such as ostomy and wound care.... | 03/19/2002 |
| 6355760 | Polyurethane adhesive with high shearing resistance The invention relates to polyurethane having improved shear strength which are obtained by polycondensation of a mixture of at least one polyol containing one or more polyether grafts and at least one short-chain alcohol with at least one diisocyanate. Th... | 03/12/2002 |
| 6353078 | Polyurethane adhesive, method for use in bonding, and use of mixture The present invention provides an adhesive comprising a polyester polyol or polyurethane polyol possessing structural units represented by the following general formula (I) within its molecular structure, and an organic polyisocyanate in which the isocyan... | 03/05/2002 |
| 6316573 | Solid adhesive material which peels off smoothly An adhesive paste, free of water, based on a reaction product of a polyisocyanate component and a co-reactant selected from the group consisting of a polyol, a monofunctional fatty derivative component and mixtures thereof, wherein the reaction product co... | 11/13/2001 |
| 6262217 | Polyurethane compositions Polyurethane compositions including the reaction product of a polyurethane prepolymer component including (a) at least one isocyanate-terminated polyalkadiene prepared by capping hydroxy-terminated polyalkadiene having a molecular weight from about 1500 t... | 07/17/2001 |
| 6187892 | Method of making a coated substrate with polyurethane/urea contact adhesive formulations and the coated substrate by this method The present invention relates to a method of making a coated substrate that requires a polyurethane/urea contact adhesive, and the coated substrates produced by this method. This invention requires a) a polyisocyanate with a functionality of less than abo... | 02/13/2001 |
| 6180744 | Moisture curing hot melt adhesives A composition containing at least one isocyanate terminated polyester obtainable by enzyme catalyzed polyesterification of one or more monomers selected from dicarboxylic acids, diols or polyols and/or hydroxyacids in the presence or absence of an inert o... | 01/30/2001 |
