Patent application number | Description | Published |
20090054619 | Functionalization of polyglycolides by "click" chemistry - Poly(glycolide) polymers are disclosed. The polymers generally include a polymerized alkynyl-substituted glycolide having a polymer backbone with one or more alkynyl groups appended thereto. The alkynyl groups provide reactive sites for further functionalization of the polymer, for example by reaction with azide derivatives (e.g., azide-substituted organic compounds). Alkynyl and azide groups react via the “click” chemistry mechanism to form functional groups covalently bonded to the polymer via a triazole link. The polymers are biodegradable and can be used to deliver drugs or other therapeutic substances (e.g., large biomolecules such as single strand RNA) at targeted locations in a patient's body and/or at controlled release rates. | 02-26-2009 |
20100331497 | BROMINATED AND EPOXIDIZED FLAME RETARDANTS - Brominated and epoxidized organic compounds are useful flame retardants for polymers such as polystyrene. The organic compounds contain both bromine and oxirane groups, and have molecular weights of at least 1500. The brominated and epoxidized organic compounds can be prepared by sequentially brominating and epoxiding (in either order) a starting compound that contains multiple non-conjugated carbon-carbon double bonds. | 12-30-2010 |
20130209693 | Block copolymer and methods relating thereto - A copolymer composition including a block copolymer having a poly(methyl methacrylate) block and a poly((trimethylsilyl)methyl methacrylate) block is provided; wherein the block copolymer exhibits a number average molecular weight, M | 08-15-2013 |
20130209694 | Blended block copolymer composition - A block copolymer composition containing a diblock copolymer blend including a first poly(methyl methacrylate)-b-poly((trimethylsilyl)methyl methacrylate) diblock copolymer; and, a second poly(methyl methacrylate)-b-poly((trimethylsilyl)methyl methacrylate) diblock copolymer. Also provided are substrates treated with the block copolymer composition. | 08-15-2013 |
20140357750 | AMINE POLYETHER POLYOLS AND POLYURETHANE FOAM COMPOSITIONS MADE FROM CYCLIC AMINE COMPOUNDS - The present invention describes cyclic amine compounds useful for catalysts forpolyurethane form-forming compositions, as well as amine alkoxylates and amine polyether polyols formed form the cyclic amines. The cyclic amine compounds of the invention provide distinct benefits for reaction compositions, methods, and polyurethane foams based on their desirable physical and catalytic properties. | 12-04-2014 |
20150183935 | METHODS FOR ANNEALING BLOCK COPOLYMERS AND ARTICLES MANUFACTURED THEREFROM - Disclosed herein is a block copolymer comprising a first block derived from a vinyl aromatic monomer; where the vinyl aromatic monomer has at least one alkyl substitution on an aromatic ring; a second block derived from a siloxane monomer; where a chi parameter that measures interactions between the first block and the second block is 0.03 to 0.18 at a temperature of 200° C. Disclosed herein is a method comprising polymerizing a vinyl aromatic monomer to form a first block; and polymerizing a second block onto the first block to form a block copolymer; where the second block is derived by polymerizing a siloxane monomer; and where the block copolymer has a chi parameter of 0.03 to 0.18 at a temperature of 200° C.; where the chi parameter is a measure of interactions between the first block and the second block of the copolymer. | 07-02-2015 |
20150184024 | METHOD OF CONTROLLING BLOCK COPOLYMER CHARACTERISTICS AND ARTICLES MANUFACTURED THEREFROM - Disclosed herein is a composition comprising a brush polymer; where the brush polymer comprises a reactive moiety that is reacted to a substrate upon which it is disposed; and a block copolymer; where the block copolymer comprises a first block and a second block that are covalently bonded to each other; where the first block comprises a first polymer and a second block comprises a second polymer; where the first polymer comprises less than or equal to 10 atomic percent polysiloxane; where the second polymer comprises at least 15 atomic percent polysiloxane; where the brush polymer is chemically different from the first polymer and the second polymer; and where the first polymer is chemically different from the second polymer; and wherein the block copolymer is disposed upon the brush polymer. | 07-02-2015 |
20150225603 | WEATHERABLE COATINGS - An adduct including a reaction product of (a) at least one cycloaliphatic amine compound, and (b) at least one cycloaliphatic epoxy resin compound; a curable epoxy resin coating composition including (i) the above adduct; and (ii) at least one thermosetting epoxy resin compound; and a cured weatherable coating prepared from the above curable composition. | 08-13-2015 |