Class / Patent application number | Description | Number of patent applications / Date published |
525332100 | Monomer contains non-conjugated diene group or at least one fused or bridged ring or at least one cycloaliphatic structure | 10 |
20080221275 | Ethylene/dicyclopentadiene/norbornene terpolymer materials having desirable structural and thermal properties - Provided are selected types of terpolymer components comprising terpolymers having monomer units derived from ethylene (E), dicyclopentadiene (DCPD) and norbornene-based (NB) co-monomers. Such terpolymer components have certain specified amounts of each co-monomer as well as certain specified molecular weight and glass transition temperature characteristics. Terpolymer components which are derivatized by hydrogenation and/or by epoxidation and/or hydroxylation are also disclosed, as well as thermoplastic polyolefin compositions which contain the terpolymer components and which have especially desirable structural and thermal properties. | 09-11-2008 |
20090209708 | GAS-PHASE ANIONIC POLYMERIZATION - A method for copolymerizing alkenyl aromatic monomer and conjugated diene in the gas phase. Other embodiments include methods for forming anionic gas-phase polymerization using a solid-supported anionic polymerization catalyst. | 08-20-2009 |
20100292410 | Polypropylene Copolymer - The application provides propylene polymer including at least 80 mol % units derived from propylene and less than 0.5 mol % units derived from a tertiary diene wherein said tertiary diene is not a 1,4-diene, said polymer including 1-50 tertiary double bonds per 10,000 carbon atoms of the main chain of said polymer. The polymer may be obtained using a Ziegler Natta catalyst. The application further provides a long chain branched propylene polymer obtainable from the afore-mentioned propylene polymer including tertiary double bonds. | 11-18-2010 |
20130172493 | PROCESS FOR MAKING DENDRITIC POLYOLEFINS FROM TELECHELIC POLYCYCLIC OLEFINS - A process for making dendritic hydrocarbon polymers by reacting an amount of one or more telechelic hydrocarbon polymers with an amount of one or more multifunctional coupling agents under conditions sufficient to produce the dendritic hydrocarbon polymer. The telechelic hydrocarbon polymer is made by ring opening metathesis polymerization (ROMP) in the presence of bi-functional alkene chain terminating agents (CTAs). The dendritic hydrocarbon polymer can be hydrogenated to produce a substantially saturated dendritic hydrocarbon polymer. The dendritic polyethylenes (dPE) can be used as processability additives to provide extensional hardening in low concentrations in various conventional polyethylenes (PEs) such as HDPE, LLDPE and mLLDPE. | 07-04-2013 |
20130310523 | Blends of Co-Precipitated Hydrogenated Ethylene-Dicyclopentadiene and Elastomeric Polymers to Provide Impact Modified Structural Polyolefins - Disclosed is the preparation of compositions which are blends of certain types of hydrogenated ethylene-dicyclopentadiene (E/DCPD) copolymers in combination with elastomeric polymers. An E/DCPD copolymer and an elastomeric polymer are co-dissolved in a common liquid reaction medium which is then subjected to hydrogenation conditions. These hydrogenation conditions serve to hydrogenate in-situ at least a portion of the residual double bonds of the E/DCPD copolymer component and possibly also eliminate any residual unsaturation which might be present in the elastomeric polymers. This combination of materials which has been hydrogenated in-situ can then be co-precipitated to form a polymer composition which can be molded into polyolefin materials of improved structural, thermal and mechanical properties with desirable impact resistance. | 11-21-2013 |
20140005338 | POLYMERIZABLE COMPOSITION, RESIN SHAPED ARTICLE, AND LAMINATE | 01-02-2014 |
20140080978 | DISPERSING AGENT FOR INORGANIC FILLERS AND METHOD OF PRODUCING SAME - The invention provides dispersing agents for inorganic fillers capable of uniformly dispersing inorganic fillers in a substrate such as made of a rubber or resin material such that molded products with improved mechanical strength and abrasion resistance can be produced from such a substrate material and more specifically that rubber compositions with improved abrasion resistance and workability can be obtained and that automobile tires with improved low fuel consumption and handling stability can be produced from such rubber compositions, as well as a method of producing such dispersing agents characterized as using a modified conjugated diene polymer obtained by introducing specified structural units with improved mutual reaction with inorganic fillers into a conjugated diene polymer having affinity with rubber and resin materials. | 03-20-2014 |
20140088260 | METATHESIS-ACTIVE ADHESION AGENTS AND METHODS FOR ENHANCING POLYMER ADHESION TO SURFACES - The invention discloses an adhesion agent composition comprising at least one C | 03-27-2014 |
20150065660 | METHODS FOR SEPARATING MIXTURES OF COMPOUNDS - The invention provides methods and membranes for separating mixtures of two or more compounds such as fatty acids or fatty acid esters. | 03-05-2015 |
20160137794 | METHOD FOR PRODUCING STRETCHED FILM - The present invention is a method for producing a stretched film comprising stretching an unstretched film that is formed using a hydrogenated dicyclopentadiene ring-opening polymer at a temperature of 95 to 135° C. and a stretching ratio of 1.2 to 10, followed by heating at a temperature of 150 to 220° C. Since the thus-obtained stretched film has excellent transparency and low coefficient of linear expansion, the stretched film is suitable for not only use in optical applications but also use for electronic materials. | 05-19-2016 |