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 |
| 4313864 | Polyphenylene oxide/plasticizer/hydrogenated radial teleblock copolymer blends Thermoplastic moldingcompositions having improved melt-flow characteristics and enhanced impact resistance characteristics are disclosed which comprise in intimate admixture (a) a polyphenylene ether resin, (b) a plasticizer composition, and (c) a minor a... | 02/02/1982 |
| 4296015 | Molded article of hydrous polymer and process for producing the same A molded article of hydrous polymer obtained by adding an oily substance to a polymer latex or a macromolecular substance latex containing anionic groups and having a polymer concentration of 20-70% by weight, said latex being selected from the group cons... | 10/20/1981 |
| 4268576 | Stencil sheet with solventless coating and method of preparation A stencil sheet is prepared with an ink-impervious coating of a film forming, solventless olefinic material. The coating includes a photopolymerization initiator, and may be applied to a tissue base in liquid form and thereafter cured by exposure to ultra... | 05/19/1981 |
| 4248976 | Flame-resistant polymer compositions Flameproofing of aromatic polymers is achieved by adding a synergistic combination of (a) a phosphorus compound and (b) a compound of formula R(CH2 X)n, wherein R is an aromatic or heterocyclic residue, X is a leaving group and n is ... | 02/03/1981 |
| 4191685 | Composition of polyphenylene ether, aromatic phosphate, aromatic halogen compound and impact modifier comprising diene polymer Compositions comprising a polyphenylene ether and, optionally, a styrene resin, an aromatic phosphate, phosphonate or phosphine oxide, an aromatic halogen compound and an impact modifier comprising a diene polymer have excellent flame retardant properties... | 03/04/1980 |
| 4173556 | Elastoplastic compositions of rubber and polyamide Elastoplastic compositions are described comprising blends of cross-linked rubber and thermoplastic polyamide.... | 11/06/1979 |
| 4172929 | Plated polyphenylene ether resin compositions containing EPDM rubber-modified alkenyl aromatic resins and hydrogenated elastomeric block copolymers Novel plated compositions are disclosed which include a polyphenylene ether resin, a small-particle EPDM rubber-modified alkenyl aromatic resin, and a hydrogenated A-B-A block polymer. Also included within the scope of this invention are reinforced and fl... | 10/30/1979 |
| 4166812 | Filled compositions of a polyphenylene ether resin and rubber-modified alkenyl aromatic resins Novel compositions are disclosed which include a polyphenylene ether resin, a rubber-modified alkenyl aromatic resin, and aluminum silicate. Also included within the scope of this invention are flame-retardant compositions of said polyphenylene ether resi... | 09/04/1979 |
| 4154712 | Low molecular weight polyphenylene ether compositions Novel compositions are disclosed which comprise a low molecular weight polyphenylene ether resin having an intrinsic viscosity of less than about 0.4 dl/g, preferably less than 0.33 dl/g, as measured in chloroform at 30° C., an elastomeric block copolyme... | 05/15/1979 |
| 4152320 | Flame-retardant, wood-bonding adhesive containing sulfur A wood-bonding adhesive containing as the adhesive base sulfur and a synthetic thermosetting urea resin, phenol resin, melamine resin, resorcinol resin and a flame retardant mixture of compounds selected from styrene, maleic acid related materials, dicycl... | 05/01/1979 |
| 4145377 | Composition of a polyphenylene ether, a styrene resin, a precompounded polymer system and a block copolymer of a vinyl aromatic compound and an olefinic elastomer There are provided compositions comprising (a) a polyphenylene ether; (b) a polystyrene resin; (c) a precompounded polymer system comprising an olefinic resin and an elastomeric block copolymer alone, or in further combination with a dispersing agent; and... | 03/20/1979 |
| 4129535 | Fire retardant polyvinyl chloride containing compositions Compositions for preparing fire retardant polyvinyl chloride films characterized by their unusual combination of low flame spread, low smoke density, reduced permeability for vapor transmission and good cold crack resistance are described. These film form... | 12/12/1978 |
| 4123410 | Polyphenylene ether resin compositions of reduced melt viscosity There are provided thermoplastic polyphenylene ether resin compositions which comprise, in admixture, a major proportion of the polyphenylene ether resin, a minor proportion of a plasticizer at least sufficient to provide a plasticized composition after m... | 10/31/1978 |
| 4115334 | Antistatic vinylidene chloride coating composition, and film coated therewith A vinylidene chloride copolymer coating composition containing small amounts of a polybasic acid of phosphorus, such as orthophosphoric acid, or sulfuric acid, in combination with a mono- or diglyceride. Organic polymeric films, such as polyester and rege... | 09/19/1978 |
| 4110296 | Fire retardant acrylic terpolymer composition and films thereof Flame retardant acrylic terpolymer compositions comprise the reaction product of (1) an alkyl acrylate or alkyl methacrylate where the alkyl radical contains 1 to 16 carbon atoms, (2) vinyl nitrile, and (3) a halogenated monomer selected from the class co... | 08/29/1978 |
| 4105611 | Adhesive composition and binding method A hotmelt adhesive composition and a method of applying it to bind sheets. The composition comprises by weight 30% to 40% of an ethylene-vinyl acetate copolymer, 25% to 35% of a wax, 20% to 40% of a modified rosin and 10% to 30% of a tackifier. The method... | 08/08/1978 |
| 4104259 | Fireproof polyesters from brominated dihydroxy alkoxy-diphenyl sulfones A fireproof linear aromatic polyester having a high stability to ultraviolet rays and heat contains a unit of the formula: ##STR1## WHEREIN R1 and R2 are each a straight or branched alkylene group having 1 to 5 carbon atoms and ... | 08/01/1978 |
| 4102850 | High impact polyphenylene ether resin compositions containing mineral oil Novel compositions are disclosed which include a polyphenylene ether resin and a small-particle EPDM rubber modified alkenyl aromatic resin containing a small amount of mineral oil. Also included within the scope of this invention are reinforced and flame... | 07/25/1978 |
| 4098748 | Plasticized polyvinyl chloride resin composition containing molybdenum flame retardant and antimony compound smoke suppressant agent A flame resistant and smoke suppressed plasticized polyvinyl chloride polymer containing from about 20 to about 100 parts per hundred resin (phr) of a plasticizer comprising an ester-type primary plasticizer in combination with a controlled amount of a ch... | 07/04/1978 |
| 4097440 | Resin composition A water reducible resin composition, a water reducible admixture of such resin with solvents and plasticizers, a water reduced form of such mixture suitable for a coating, and a coating prepared from such water reduced mixture. Said resin is required to b... | 06/27/1978 |
| 4092280 | Composition for a typewriter ribbon having delayed alteration resistance A composition for a correctable typewriter ribbon adapted to be adhesively lifted off from the typing bond to which it is transferred for a short period of time, after which the alteration resistance of a typed indicia changes so that an adhesive lift off... | 05/30/1978 |
| 4086212 | Poly(ethylene/alkylene) terephthalates which crystallize rapidly Terephthalic copolyesters, the diol component of which mainly consists of ethylene glycol units, crystallize more rapidly than pure polyethylene terephthalate and can be moulded in a way comparable to polybutylene terephthalate.... | 04/25/1978 |
| 4077934 | Method of preparing compositions that comprise a polyphenylene ether resin and an alkenyl aromatic resin A novel process is disclosed for preparing a composition which comprises a polyphenylene ether resin and an alkenyl aromatic resin. The process is based on preparing a preblend of the polyphenylene ether resin with a compound that reduces the alloying tem... | 03/07/1978 |
| 4074015 | Process for the production of nonflammable laminated materials A process for producing nonflammable laminated materials which includes the steps of impregnating a cellulose-containing material with an impregnating solution containing a phenolic-resol resin solution, at least one plasticizer for the resin and optional... | 02/14/1978 |
| 4066600 | Friction-activatable adhesive and articles thereof A friction-activatable adhesive composition comprising a mixture of a crystallizable linear polyester, a tackifier and, optionally, a plasticizer therefor and adhesive sticks prepared from the adhesive compositions.... | 01/03/1978 |
| 4064095 | Poly(phosphazene) compositions Poly(phosphazene) compositions exhibiting excellent flame resistance and low smoke output are produced by the addition of fillers from a class of fillers which decompose endothermically when heated to an appropriate temperature. The compositions may also ... | 12/20/1977 |
| 4028286 | Ink transfer member An improved ink releasing member of the plastisol matrix type having a liquid ink supported within a matrix from which it is expressible on the application of pressure. The ink employs a liquid vehicle and a pigment dye or combination pigment and dye colo... | 06/07/1977 |
| 4012559 | Radiation curable coating composition and precoated metal having top coat based on the same A radiation curable coating composition suitable for providing a cured coating of enhanced processability on metal substrates, comprising 100 parts of an acrylic copolymer having a number average molecular weight of 15,000 to 800,000 and predominantly com... | 03/15/1977 |
| 4008368 | Electrical conductor having inhibited polymer compositions A polymeric composition having a polymer content which tends to evolve deleterious acid compounds upon being subjected to elevated temperatues; the composition including selected particle matter which is present in an amount to combine with or otherwise n... | 02/15/1977 |
| 3988301 | Process for the preparation of high-molecular weight A reaction mixture comprising terephthalic acid and bis(2-hydroxyethyl) terephthalate in a molar ratio of from 1:1 to 1.1:1, and ethylene glycol in a molar ration of from 0.3:1 to 0.9:1 with respect to the terephthalic acid, is heated at a temperature bet... | 10/26/1976 |
| 3985693 | Polyvinyl chloride polyblend molding composition Polyblends of a vinyl chloride polymer having good low temperature crack propagation resistance, overall toughness and high resiliency comprising a polyvinyl chloride polymer and a two stage core grafted composite copolymer having a particular butadiene-s... | 10/12/1976 |
| 3981841 | Blends of a polyphenylene ether resin, alkenyl aromatic resins modified with EPDM rubber and graft polymerized high rubber content polymers Novel thermoplastic compositions are disclosed which include a polyphenylene ether resin, an alkenyl aromatic resin modified with an EPDM rubber and an emulsion graft copolymer of an alkenyl aromatic resin and a rubbery interpolymer of a mixture of monool... | 09/21/1976 |
| 3977979 | Yarn finish formulations Yarn finishes, particularly of the coning oil type, containing a hydrocarbon soluble, long molecular chain polymeric viscosity index improver, such as polyisobutylene, are disclosed herein.... | 08/31/1976 |
| 3966677 | Self-extinguishing polystyrene resin composition A polystyrene resin composition is prepared by adding to polystyrene resin, a mixture of (a) tricresyl phosphate and/or triphenyl phosphate and (b) a carbonate oligomer of 2,2-(4-4'-dihydroxy-3,3,',5,5'-tetrabromodiphenyl) propane which is terminated at i... | 06/29/1976 |
| 3931076 | Elimination of pinking in vinyl asbestos formulations Improved vinyl asbestos compositions comprising a vinyl chloride resin, plasticizer stabilizer, a hydrocarbon resin, asbestos, fillers, pigments and colorants and heat stabilizers wherein the improvement comprises the inclusion of a stabilizing amount of ... | 01/06/1976 |
