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 |
| 7943726 | Process for preparation of oxymethylene polymers in a homogeneous phase, and use A process and an apparatus are described for preparation of oxymethylene polymers. This process encompasses polymerization, in a homogeneous phase, of a monomer which forms oxymethylene groups, as far as 90% of maximum conversion in the presence of an acetal of form... | 05/17/2011 |
| 7605224 | Reacting alkylene oxide and glycidy ether to produce OH- or acid-terminated copolymer Disclosed are copolymers made of alkylene oxides and glycidyl ethers according to formula (I) in which R1 is hydrogen or a C1-C4-alkyl radical, R2 and R4 are an alkyl o... | 10/20/2009 |
| 7388068 | Copolymers made of alkylene oxides and glycidyl ethers and use thereof as polymerizable emulsifiers Disclosed are copolymers made of alkylene oxides and glycidyl ethers according to formula (I) in which R1 is hydrogen or a C1-C4-alkyl radical, R2 and R4 are an alkyl o... | 06/17/2008 |
| 7361728 | Electrically conducting materials from branched end-capping intermediates The present invention relates to a class of conducting oligomers and polymers and to a method for the preparation of the same. The conducting oligomers and polymers contain an end-capping group, which is non-electrically conductive and contains at least one branch p... | 04/22/2008 |
| 7348128 | Photosensitive resin based on saponified polyvinyl acetate photosensitive resin composition, method of forming aqueous gel from the same, and compound A photosensitive resin which exhibits excellent storage stability, affinity, miscibility, or solubility with respect to a variety of compounds, and high sensitivity can be solidified even under hydrous conditions as well as exhibiting high cure-related sensitivity a... | 03/25/2008 |
| 7342077 | Acrylic composition and a method of forming the same via free-radical polymerization An acrylic composition, or star acrylic polymer, includes the reaction product of an initiator, a first compound, and a highly-branched, polyfunctional core molecule. The initiator has a radical-forming portion and a functional group. The first compound, which inclu... | 03/11/2008 |
| 7336106 | Phase detector and method having hysteresis characteristics A phase detector generates a first output signal if a feedback clock signal leads a reference clock signal by more than a first time. The phase detector generates a second output signal if the feedback clock signal lags the reference clock signal by more than a seco... | 02/26/2008 |
| 7321008 | Bioabsorbable branched polymers end-capped with diketene acetals Star polymers of soft segment forming monomers are useful in forming surgical devices. The star polymers can be endcapped with diketene acetals, mixed with a filler and/or cross-linked. The polymer compositions are useful, for example, as fiber coatings, surgical ad... | 01/22/2008 |
| 7282530 | Polymer for forming anti-reflective coating layer A polymer for forming an organic anti-reflective coating layer between an etching layer and a photoresist layer to absorb an exposure light in a photolithography process and a composition comprising the same are disclosed. The polymer for forming an organic anti-ref... | 10/16/2007 |
| 7279546 | Hydroxy-functional polyesters The present invention provides thermoplastic hydroxy-functional polyesters. The polyesters have at least 10 sequential units, wherein the sequential units consist of units selected from units represented by the following formula (1) and units represented by the foll... | 10/09/2007 |
| 7271224 | Composition for coating having a gas barrier property, coating and coated film having a gas barrier property used the same A composition for coating having a gas barrier property comprising coating-forming components of an epoxy resin and an amine curing agent, wherein said amine curing agent is a reaction product of (A) methaxylylenediamine or paraxylylenediamineand (B) polyfunctional ... | 09/18/2007 |
| 7267877 | Composition for coating having a gas barrier property, coating and coated film having a gas barrier property used the same A composition for coating having a gas barrier property comprising coating-forming components of an epoxy resin and an amine curing agent, wherein said amine curing agent is a reaction product of (A) methaxylylenediamine or paraxylylenediamineand (B) polyfunctional ... | 09/11/2007 |
| 7202326 | Glycolic acid copolymer and method for production thereof A glycolic acid copolymer comprising (a) 80 to less than 95% by mole of glycolic acid monomer units, (b) 5.0 to 20.0% by mole of non-glycolic, hydroxycarboxylic acid monomer units, and (c) 0 to 0.10% by mole of diglycolic acid monomer units, the non-glycolic, hydrox... | 04/10/2007 |
| 7151155 | Copolymers of cyclic esters and cyclic formals Disclosed are copolymers of cyclic esters, e.g., caprolactone, and cyclic formals of substituted or unsubstituted diols, e.g., 1,3-dioxepane. The copolymers can provide a low melting temperature rendering them liquids at room temperature. Elastomeric polyurethanes p... | 12/19/2006 |
| 7138179 | Method for preparing biodegradable polyester and itself prepared thereby Disclosed is a method for preparing a biodegradable polymer in the form of uniform powder or spherical particles by dispersion polymerization without a grinding step. The method for preparing a biodegradable polyester includes dispersing a monomer in the presence of... | 11/21/2006 |
| 7109288 | Cured thermosetting resin product This invention provides a thermosetting resin compound containing 25% or more by volume of anisotropic structure in the resin ingredient, wherein a structure constituting said anisotropic structure has a covalent bond and the maximum diameter of the structure is 400... | 09/19/2006 |
| 7063933 | Photosensitive resin composition, ink-jet recording head using the composition, and production method for the same A photosensitive resin composition usable in forming an ink-jet recording head, and a production method of the head. The composition comprises a polyetheramide resin having a repeating unit represented by the following formula (1), a compound that generates an acid ... | 06/20/2006 |
| 7041331 | Electronic device manufacture Compositions suitable for use as underfill materials in an integrated circuit assembly are provided. Also provided are methods of preparing integrated circuit assemblies containing certain underfill materials as well as electronic devices containing such integrated ... | 05/09/2006 |
| 7008571 | Optical component and sulfur-containing poly(thio)ester (co)polymer A poly(thio)ester (co)polymer which comprises a repeating structural unit represented by the formula (1-A) as an essential structural unit: [wherein R11 is a divalent aliphatic hydrocarbon group which may con... | 03/07/2006 |
| 7005185 | Quick cure carbon fiber reinforced epoxy resin An epoxy composition includes an epoxy resin, a latent curing agent, and a catalyst. The composition includes two epoxide groups per molecule, and the latent curing agent is preferably a dicyanopolyamide, and most preferably dicyandiamide. The catalyst includes 2,4-... | 02/28/2006 |
| 6951380 | Method of manufacturing microstructure, method of manufacturing liquid discharge head, and liquid discharge head A liquid discharge head which is inexpensive, accurate, and highly reliable, and a method of manufacturing such a liquid discharge head are provided. On a substrate, a thermal crosslinking positive photosensitive material layer (a first positive photosensitive mater... | 10/04/2005 |
| 6951686 | Architectural concrete and process to make same A concrete article comprised of concrete having therein a reinforcing polymer that has a surface comprised of a thermoplastic hydroxy-functionalized polyether or polyester. The concrete article is made by mixing concrete, water and a reinforcing polymer that has a s... | 10/04/2005 |
| 6946541 | Composition based on renewable raw materials The present invention relates to a composition based on renewable raw materials which is particularly characterized by containing at least one tin-containing compound, an article made thereof as well as a process for the preparation of such an article. The compositi... | 09/20/2005 |
| 6933361 | Thermally re-mendable cross-linked polymers Thermally re-mendable cross-linked polymeric materials that can be repeatedly mended or repaired by simple thermal treatment. The polymeric materials are made by polymerizing furan monomers and maleimide monomers via the Diels-Alder (DA) reaction wherein the furan m... | 08/23/2005 |
| 6867181 | Ionic molecular conjugates of biodegradable polyesters and bioactive polypeptides A method of spherifying a sustained release ionic conjugate which contains a free carboxyl group-containing polymer and a free amino group-containing drug which are ionically bonded to each other. ... | 03/15/2005 |
| 6756471 | Process for the preparation of water-soluble polymers containing polyalkylene glycol ether side chains The invention relates to a process for the preparation of water-soluble polymers containing polyalkylene glycol ether side chains and having molecular weights of from 15,000 to 65,000 by solution polymerization of esters of ethylenically unsaturated carboxylic acids... | 06/29/2004 |
| 6706854 | Process for preparing reabsorbable polyesters by mass polymerization The invention relates to a process for preparing reabsorbable polyesters by bulk polymerisation, wherein the reaction components are melted and homogenised in a stirred reactor, the reaction mixture is then transferred into a number of smaller-volume containers, the... | 03/16/2004 |
| 6663930 | Chemical resistant adhesive composition Gel formation is prevented in the reaction between a sulfonyl-chloride-containing resin and a polyamine by first forming an adduct between the resin with an aminophenol. The prevention of gel formation enables sulfonyl-chloride containing resin to be used... | 12/16/2003 |
| 6657042 | Process for manufacturing homo- and copolyesters of Lactic acid A process is provided for manufacturing homo- and copolyesters of lactic acid by ring scission polymerization of its cyclic monomers in the presence of an initiator. Polymerization is carried out in the molten phase in the presence of an initiator system ... | 12/02/2003 |
| 6645743 | Polyhydroxyalkanoate copolymer containing in molecule unit with vinylphenyl structure in its side chain and method of manufacturing the same A polyhydroxyalkanoate (PHA) having a desired configuration is produced using a raw material containing ω-(4-vinylphenyl)-alkanoic acid and (ω-substituted alkanoic acid in which a group having a ring structure selected from phenyl, thienyl, and cyclohex... | 11/11/2003 |
| 6555592 | Photothermosetting composition comprising acrylated epoxy resin A photothermosetting composition is described which contains a base resin (A), a photopolymerizable photomonomer or photooligomer (B), a photoinitiator (C), an epoxide compound containing at least two epoxy groups (D), and an organic solvent. The base res... | 04/29/2003 |
| 6517990 | Photosensitive polymer including copolymer of alkyl vinyl ether and resist composition containing the same There are provided a photosensitive polymer having a copolymer of alkyl vinyl ether and a resist composition containing the same. The photosensitive polymer includes a copolymer of alkyl vinyl ether and maleic anhydride, represented by the following struc... | 02/11/2003 |
| 6403842 | Processes for producing poly(alkylene ether) glycol Disclosed are a process for producing a poly(alkylene ether) glycol which comprises polymerizing a cyclic ether in the presence of at least a catalyst and a carboxylic acid anhydride, wherein the carboxylic acid anhydride has a ketene dimer content of 50 ... | 06/11/2002 |
| 6403670 | Thermosetting composition containing polyhemiacetal ester resin and powdery thermosetting composition The present invention relates to a thermosetting composition which comprises: (A) a polyhemiacetal ester resin having a repeat unit represented by formula (1): ##STR1## wherein R1 and R2 are a bivalent organic group, and Y is an ... | 06/11/2002 |
| 6346596 | Gas barrier polymer composition A gas barrier polymer composition with active hydrogen functionality is provided. The polymer may be prepared by reacting a solution of organic diacid containing at least one active hydrogen group and diglycidyl ether in the presence of an optional cataly... | 02/12/2002 |
| 6306922 | Photopolymerizable biodegradable hydrogels as tissue contacting materials and controlled-release carriers Hydrogels of polymerized and crosslinked macromers comprising hydrophilic oligomers having biodegradable monomeric or oligomeric extensions, which biodegradable extensions are terminated on free ends with end cap monomers or oligomers capable of polymeriz... | 10/23/2001 |
| 6207793 | Process for production of polytetramethylene-ether-glycol-diester using halloysite catalyst An improved process for Polytetramethylene-Ether-Glycol-Diesters of the formula R--CO--O(CH2 --CH2 --CH2 --CH2 --O)n-COR1, in which R and R1 are identical or different and are alkyl radical... | 03/27/2001 |
| 6150458 | Process for preparing esters of (meth) acrylic acid The present invention relates to a process for preparing (meth)acrylic acid esters by 1) reacting hydroxyl group-containing polyethers, polyesters or polyester ethers with (meth)acrylic acid in the presence of an acid esterification catalyst and a solvent... | 11/21/2000 |
| 6080872 | Cycloaliphatic epoxy compounds Cycloaliphatic epoxy compounds represented by general formula (I): ##STR1## wherein R1 and R2 are hydrogen atoms, or R1 and R2 taken together represent an epoxy group, R3 and R4 are the sam... | 06/27/2000 |
| 5990189 | Coating compositions A photopolymerizable material is provided that is suitable for use in the production of coatings or resists on printed circuit boards, for example The material is an ethylenically unsaturated polymerizable reaction product of a polyepoxide and a mixture o... | 11/23/1999 |
