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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 |
| 7900266 | Asphaltic roofing shingle with self seal adhesive composition It has been unexpectedly found that the solvent extracted aromatic cut of heavy vacuum gas oil can be oxidized to produce an adhesive composition that has all the needed attributes of a self seal adhesive for asphalt roofing shingles. This adhesive composition does ... | 03/01/2011 |
| 7267760 | Method of removing contaminants from used oil In a method of removing acidic compounds, color, and polynuclear aromatic hydrocarbons, and for removing or converting hydrocarbons containing heteroatoms from used oil distillate, phase transfer catalysts are employed to facilitate the transfer of inorganic or orga... | 09/11/2007 |
| 7238408 | Roofing materials having engineered coatings An asphalt-based roofing material includes a coating having a top portion containing a mixture of asphalt and igneous and/or metamorphic rock particles, while the mat portion of the coating contains a mixture of asphalt and a filler which contains less than 10% igne... | 07/03/2007 |
| 7160622 | Oil repelling agent An oil repelling agent to coat a dynamic pressure device, such as a fluid dynamic pressure bearing device, includes a UV coloring agent, a fluorine-based polymer and a solvent. In an exemplary embodiment of the invention, the concentration of the UV coloring agent c... | 01/09/2007 |
| 7160943 | Aqueous crumb rubber composition A fluid or semifluid additive composition useful for asphalt paving comprises between about 10% and about 50% crumb rubber, about 10% and about 50% petroleum hydrocarbon having at least about 50% aromatics, between about 10% and about 50% surface active clay, and wa... | 01/09/2007 |
| 7144932 | Low-friction, high-dispersion synthetic resin composition containing fine particles of RB ceramic or CRB ceramic and a method for its preparation A synthetic resin composition includes at least one synthetic resin and RBC or CRBC particles dispersed in the resin. A method for preparing a synthetic resin composition includes mixing RBC or CRBC particles with a synthetic resin at a temperature near the melting ... | 12/05/2006 |
| RE39289 | Apparatus and process for manufacturing asphalt An improved process for making asphalt involves incorporating tar sands into a hot asphalt mix process and modifying the process. The improved process involves using a heated asphalt counter-flow drum mixer to admix asphaltic cement, coarse aggregate, and fine aggre... | 09/19/2006 |
| 7097703 | Use of anti-strip agents to improve wear characteristics of pavement sealer A sealer base comprising at least one anti-wear agent comprising aliphatic carboxylic acids and aliphatic polyamides is disclosed. ... | 08/29/2006 |
| 7008670 | Bituminous composition This composition sealant relates to rejuvenating, sealing, and preserving asphalt pavements and concrete surfaces. More specifically, the sealant composition includes soy products and other vegetable products. More specifically, the agricultural sealant composition ... | 03/07/2006 |
| 7001453 | Method of selecting a high modulus layer binder A method of selecting an asphalt binder for use in constructing a high modulus layer of bituminous pavement is provided. This method includes measuring the complex shear modulus of one or more binders at a temperature of not more than about 30° C., measuring the cr... | 02/21/2006 |
| 6987207 | Hydrocarbonaceous composition The present invention relates to a composition, comprising: (A) an odor-emitting hydrocarbonaceous material; and (B) an odor-suppressing amount of an additive composition comprising soy methyl ester, at least one aldehyde and/or at least one ketone, and at least one... | 01/17/2006 |
| 6972047 | Incorporation of gilsonite into asphalt compositions It has been discovered that a synthetic flux oil can contain and deliver asphaltites, such as gilsonite, more easily and readily to an asphalt to improve its properties. The synthetic flux oil includes the asphaltite and a carrier oil. Depending on the nature of the... | 12/06/2005 |
| 6929737 | Method of removing contaminants from petroleum distillates In a method of removing acidic compounds, color, and polynuclear aromatic hydrocarbons, and for removing or converting hydrocarbons containing heteroatoms from petroleum distillates, phase transfer catalyst is employed to facilitate the transfer of inorganic or orga... | 08/16/2005 |
| 6802897 | Biodiesel sulfur slurry A slurry mixture of sulfur in a liquid carrier comprising an ester derived from vegetable oils or animals fats such as biodiesel is disclosed. Also disclosed is a method of preparing a mixture of asphalt, polymer and sulfur comprising blending together, at asphalt b... | 10/12/2004 |
| 6764542 | Biodiesel cutback asphalt and asphalt emulsion A cutback asphalt and an asphalt emulsion comprising biodiesel is disclosed. Cutback is mixed with a sufficient amount of biodiesel to reduce the viscosity of the asphalt, producing, e.g., a cold patch material which is free of added liquid petroleum. An asphalt emu... | 07/20/2004 |
| 6361591 | Sealer from asphalt and pitch A better asphalt based sealer for driveways and the like is disclosed. The material uses as a hybrid sealer base or binder comprising a blend of pitch, asphaltic material and cut-back oil as a partial or complete replacement for pure coal tar materials. D... | 03/26/2002 |
| 6203606 | Performance grade asphalt and methods The present invention relates to Performance Grade asphalt and a method for producing the same. The process includes adding a performance grade modifier and aggregates to an asphalt cement. The performance grade modifier reduces the high temperature limit... | 03/20/2001 |
| 6074469 | Asphalt composition and method A paving asphalt composition for improving the durability and longevity of asphalt road surfaces is disclosed. The paving asphalt composition includes asphalt base stock, heavy residuum of re-refined motor oil, and a chemical modifier. The heavy residuum ... | 06/13/2000 |
| 6045608 | Apparatus and process for manufacturing asphalt An improved process for making asphalt involves incorporating tar sands into a hot asphalt mix process and modifying the process. The improved process involves using a heated asphalt counter-flow drum mixer to admix asphaltic cement, coarse aggregate, and... | 04/04/2000 |
| 6027557 | Oxidized blends of asphalt and paraffinic base stock fluxing component having improved low temperature properties Paraffinic fluxing components, e.g., paraffinic base stocks such as neutral oils or foots oil, can be added to asphalt composition and the resulting blend oxidized, e.g., by blowing, to improve low temperature properties at low addition rates (e.g., oil 1... | 02/22/2000 |
| 5961709 | Environmentally improved asphalt compositions and their preparation An environmentally improved asphalt paving composition which contains a solvent-precipitated asphaltene, such as solvent deasphalting bottoms, and a viscosity reducing amount of paraffinic fluxing component, e.g., 325 Neutral Oil.... | 10/05/1999 |
| 5911817 | Process for paving with asphalt containing mineral lubricating oil base stock Mineral lubricant base oils (e.g., neutral oils) can be added to asphalt composition to improve low temperature properties at low addition rates (e.g., oil 1-5%). Rerefined oils (boiling above about 177° C. (350° F.)) have the same properties as virgin ... | 06/15/1999 |
| 5904760 | Rerefined oil or hydrofinished neutral oil for blending superpave asphalts with low temperature properties Mineral lubricant base oils (e.g., neutral oils) can be added to asphalt composition to improve low temperature properties at low addition rates (e.g., oil 1-5%). Rerefined oils (boiling above about 177° C. (350° F.)) have the same properties as virgin ... | 05/18/1999 |
| 5762699 | Pavement aggregate treating composition A composition for coating and treating aggregate intended for use in paving applications is a blend of high temperature coal tar pitch combined with coal tar oils resulting from distilling high temperature coke oven tar to pitch having a softening point f... | 06/09/1998 |
| 5755865 | Asphalt rejuvenater and recycled asphalt composition A composition for rejuvenating asphalt comprises between 5-25% by weight shale oil modifier and between 75-95% by weight asphalt cement. The asphalt cement may consist of an AC-10 binder or an AC-20 binder. The shale oil modifier is made of dehydrogenated... | 05/26/1998 |
| 5695555 | Method for the production of improved paving asphalt and product prepared therefrom A paving asphalt cement for use in preparing a paving asphalt comprises from about 5 to about 90 weight % of a catalytically oxidized paving asphalt precursor, from about 10 to about 95 weight % of a unoxidized paving asphalt precursor and, from about 1 t... | 12/09/1997 |
| 5492562 | Low freezing point roofing shingle containing a chloride salt The present invention relates to asphalt shingles containing one or more chloride salts. The shingles disclosed herein remain flexible and pliant at sub-freezing temperatures, thereby preventing snow and ice from creeping underneath the shingles. The shin... | 02/20/1996 |
| 5089052 | Emulsification of rock asphalt A method for emulsification of rock asphalt, the resulting low asphalt emulsion and low asphalt emulsion binder for aggregate is disclosed. Fine mesh rock asphalt is emulsified by using a hydrocarbon fluxing agent to sufficiently wet the rock asphalt to p... | 02/18/1992 |
| 4975176 | Process for the production of bitumens of a high penetration value, apparatus for carrying it out, and products thus obtained The process permits to produce bitumens having a high penetration value by oxidation of base bitumens with small volumes of gaseous oxidizers, preferably air, at a temperature between 170° and 250°, preferably 200° C., by turbodispersion of the gaseous... | 12/04/1990 |
| 4904305 | Novel asphaltic composition A novel asphaltic composition consisting of from about 2% to about 10% w/w of a hydrocracking residue which is the distillation residue obtained from a hydrocracking process of heavy crude oil in admixture with from about 98% to about 90% w/w of a convent... | 02/27/1990 |
| 4659389 | Method and composition of asphaltic roofing fluxes Preparation of satisfactory asphaltic roofing fluxes from otherwise unsatisfactory fluxes is disclosed to involve addition of asphaltenes, and saturates in quantities which satisfy certain specified conditions. Air oxidation of a flux is shown to be surpr... | 04/21/1987 |
| 4613376 | Asphalt surfacing mass A surfacing mass especially for outdoor use and mainly comprising a mixture of asphalt and a stone material having a low content of fine material. The mixture comprises a little amount of fibres of a type which is not solved or softens in the asphalt, pre... | 09/23/1986 |
| 4559267 | Stick-down system for roofing A stick-down system for roofing membrane or shingles includes a sealant of compounded bitumen which is a roofer's flux and/or asphalt resin containing from about 3% to 20% by weight of rubber and/or thermoplastic resins such that said sealant exhibits hig... | 12/17/1985 |
| 4544410 | Process for the production of an aqueous bituminous preparation A stable, thixotropic aqueous bitumen dispersion containing no emulsifier is prepared. Alkaline earth metal hydroxide and an aluminum salt are brought into contact to form an aqueous aluminum hydroxide gel. Molten bitumen is dispersed in the gel. The disp... | 10/01/1985 |
| 4544411 | Method and composition of asphaltic roofing fluxes Preparation of satisfactory asphaltic roofing fluxes from otherwise unsatisfactory fluxes is disclosed to involve addition of asphaltenes, and saturates in quantities which satisfy certain specified conditions. Air oxidation of a flux is shown to be surpr... | 10/01/1985 |
| 4483714 | Nitrocellulose composition and process for production thereof A nitrocellulose composition containing substantially no water consisting of a homogeneous phase comprising nitrocellulose and an organic liquid which is inert to isocyanate. The composition is suitable for compounding in polyurethane paint.... | 11/20/1984 |
| 4430127 | Epoxylated amine asphalt anti-stripping agent In accordance with this invention there are provided compositions of matter comprising a bitumen containing material and an epoxylated polyamine wherein at least two of the amino nitrogen atoms are separated by six carbon atoms. These compositions provide... | 02/07/1984 |
| 4382989 | Roofing asphalt formulation The present invention is an asphaltic composition which is useful as a roofing asphalt formulation and method of making this formulation. The composition includes about 39 to 99 percent by weight of oxidized asphalt and between 1 and about 8 percent of ox... | 05/10/1983 |
| 4349590 | Glass substrates with an insolubilized asphalt coating Glass substrates are provided, for example, glass fibers, with a substantially solvent insoluble coating of asphalt.... | 09/14/1982 |
| 4338137 | Asphalt composition for air-blowing A process for air-blowing asphalt in the presence of ferrous chloride and an asphalt composition comprising a major amount of asphalt and a minor but effective amount of ferrous chloride.... | 07/06/1982 |
