| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 525319000 | Ethylenic reactant is acyclic hydrocarbon | 16 |
| 20100197865 | PROPYLENE-ETHYLENE-BUTENE BLOCK COPOLYMER AND MOLDED ARTICLE THEREOF - A propylene-ethylene-butene block copolymer is provided which includes from 60 to 85% by weight of a polypropylene portion and from 15 to 40% by weight of a propylene-ethylene-butene random copolymer portion, wherein the copolymer satisfies the requirements (1) and (2) given below. In addition, a molded article including such a propylene-ethylene-butene block copolymer is provided.
| 08-05-2010 |
| 20110021712 | PROCESS FOR THE PRODUCTION OF POLYMER MICROPARTICLES - The object of the present invention is to provide a process for producing a high-quality polymer microparticle having uniform particle size of the order of several micrometers to tens of micrometers by inverse suspension polymerization at high productivity while keeping excellent dispersion stability without causing aggregation among particles. The process is one for the production of polymer microparticles by inverse polymerization of a vinyl monomer and is characterized in that the inverse suspension polymerization is conducted dividing at least two steps, an oil-soluble oxidizing agent and a water-soluble reducing agent are used as a polymerization initiator, and the oil-soluble oxidizing agent is fed after the water-soluble reducing agent is fed. | 01-27-2011 |
| 20120101235 | Polyethylene and Process for Production Thereof - This invention relates to a process for polymerizing olefins in which the amount of trimethylaluminum in a methylalumoxane solution is adjusted to be from 1 to 25 mol %, prior to use as an activator, where the mol % trimethylaluminum is determined by | 04-26-2012 |
| 525320000 | Acyclic hydrocarbon contains five or more carbon atoms | 6 |
| 20130338316 | FUNCTIONALIZED OLEFIN POLYMERS, COMPOSITIONS AND ARTICLES PREPARED THEREFROM, AND METHODS FOR MAKING THE SAME - In one aspect the invention provides a melt process for preparing a functionalized olefin multiblock interpolymer, said process comprising grafting onto the backbone of the olefin multiblock interpolymer at least one compound comprising at least one “amine-reactive” group to form a grafted olefin multiblock interpolymer, and reacting a primary-secondary diamine or an alkanolamine with the grafted olefin multiblock interpolymer, without the isolation of the grated olefin multiblock interpolymer. | 12-19-2013 |
| 20150057415 | THERMOPLASTIC ELASTOMER COMPOSITION AND PROCESS FOR MANUFACTURING THE SAME - The present invention relates to a thermoplastic elastomer composition which comprises a branched olefin copolymer comprising: a main chain of an ethylene/α-olefin copolymer; and a side chain derived from a crystalline propylene polymer containing a vinyl group at one end, wherein the content of α-olefin in the main chain is 70 mol % or less, the composition has an elongation at break of 500% or higher, and has an elastic recovery rate of 70% or more when recovering from an extension to 300% elongation, and a process for manufacturing the same. | 02-26-2015 |
| 525321000 | Block copolymer derived from acyclic hydrocarbon containing five or more carbon atoms | 4 |
| 20110092651 | Catalytic Olefin Block Copolymers Via Polymerizable Shuttling Agent - A polymerization process and the resulting polymer composition, said process comprising polymerizing one or more addition polymerizable monomers and a polymerizable shuttling agent in the presence of at least one addition polymerization catalyst comprising a metal compound or complex and a cocatalyst under conditions characterized by the formation of a branched polymer, preferably comprising pseudo-block molecular architecture. | 04-21-2011 |
| 20130296497 | OLEFIN BLOCK COPOLYMER - The present description relates to an olefin block copolymer with excellences in elasticity, heat resistance, and processability. The olefin block copolymer comprises a plurality of blocks or segments, each comprising an ethylene or propylene repeating unit and an α-olefin repeating unit at different mole fractions. The olefin block copolymer comprises polymer chains containing 20 to 100 short-chain branches (SCBs) per 1,000 carbon atoms. A point where a first derivative of the number Y of the SCBs per 1,000 carbon atoms of each polymer chain with respect to the molecular weight X of the polymer chain is 0 exists between the minimum and maximum values of the molecular weight X. | 11-07-2013 |
| 20130303704 | OLEFIN BLOCK COPOLYMER AND SHEET-SHAPED MOLDED BODY - The present description relates to an olefin block copolymer preferably useful to form nonslip pads due to excellences in elasticity and heat resistance, and a sheet-shaped molded body comprising the olefin block copolymer The olefin block copolymer includes a plurality of blocks or segments, each of which includes an ethylene or propylene repeating unit and an α-olefin repeating unit at different weight fractions. The olefin block copolymer satisfies a defined relationship when a load of 5 to 10 kg is applied to a sheet-shaped molded body of the block copolymer for 12 hours or longer at a temperature of 60° C. or higher, and then removed. | 11-14-2013 |
| 20130324669 | DRY ADHESIVES - A dry adhesive comprising a micro-featured and nano-featured surface, and a compliant surface having a hardness of about 60 Shore A or less, the micro-featured and nano-featured surface and the compliant surface being capable of forming upon contact a dry adhesive bond with each other. | 12-05-2013 |
| 525322000 | Acyclic hydrocarbon is propylene | 5 |
| 20080293890 | Elastomeric Resin Compositions with Improved Resistance to Draw Resonance - This invention relates to polyolefin compositions. In particular, the invention pertains to elastic polymer compositions that can be more easily processed on cast film lines, extrusion lamination or coating lines due to improved resistance to draw resonance. The compositions of the present invention comprise an elastomeric polyolefin resin and a high pressure low density type resin. The preferred compositions of the present invention comprise from 88 to 99 percent elastomer or plastomer and from 1 to 12 percent by weight of a high pressure low density type resin. | 11-27-2008 |
| 20110196106 | PROPYLENE-BASED COPOLYMER AND FILM MADE OF THE SAME - A propylene-based copolymer is composed of 60 to 90% by weight of Component (A) that is a polymer component whose major structural unit is a structural unit derived from propylene and 10 to 40% by weight of Component (B) that is a propylene-ethylene copolymer component whose content of a structural unit derived from ethylene is 50 to 80% by weight, wherein the sum total of Component (A) and Component (B) is 100% by weight, wherein the ratio of the intrinsic viscosity of Component (B)([η]B) to the intrinsic viscosity of Component (A) ([η]A)([η]B/[η]A) satisfies a formula: 1.3<[η]B/[η]A≦2.0, and the melt flow rate, measured at a temperature of 230° C. and a load of 21.18 N, of the copolymer is not less than 5 g/10 minutes and not more than 30 g/10 minutes. | 08-11-2011 |
| 20140213734 | Polyethylene Copolymers with Vinyl Terminated Macromonomers as Comonomers - This invention relates to polyethylene copolymers comprising ethylene and vinyl terminated macromonomers. The polyethylene copolymers are achieved by copolymerization of ethylene and vinyl terminated macromonomers in a polymerization reactor, particularly in high yields and with a wide range of VTM molecular weights, that can be made at commercial rates. | 07-31-2014 |
| 525323000 | Block copolymer derived from propylene | 2 |
| 20140275429 | METHOD FOR PRODUCING OLEFIN BLOCK POLYMER USING PLURALITY OF TYPES OF TRANSITION METAL CATALYSTS - A method for producing an olefin block polymer, the method includes: polymerizing olefin using a polymerization catalyst (X), a polymerization catalyst (Y), and an organometallic compound (C) having an atom of any of Groups 2, 12, and 13 of the periodic table of the elements, the organometallic compound (C) excluding an activating co-catalyst agent (B), wherein: the polymerization catalyst (X) is formed by bringing a transition metal compound (A-X) represented by a general formula (1-X) into contact with an activating co-catalyst agent (B); and the polymerization catalyst (Y) is formed by bringing a transition metal compound (A-Y) represented by a general formula (1-Y) into contact with the activating co-catalyst agent (B). | 09-18-2014 |
| 20160060378 | METHOD FOR PRODUCING PROPYLENE POLYMERIC MATERIAL - A method is provided for producing a propylene polymeric material containing a propylene polymer component high in content of α-olefin units. The material can be produced stably without stopping of the operation due to clogging of a pipe. The method is one for producing a propylene polymeric material composed of a propylene polymer component (A) and a propylene polymer component (B) via at least two steps, including a first step of producing the component (A) and a second step of producing the component (B) in a gas phase. The partial pressure of the α-olefin having four or more carbon atoms in the gas phase in the second step reactor is 0.10 MPa or more. A formula, X≦0.0025×Y+0.2850, is satisfied, wherein the partial pressure is X MPa, and the content of the propylene polymer component (A) in the propylene polymeric material is Y % by weight. | 03-03-2016 |
| 525324000 | Acyclic hydrocarbon is ethylene | 2 |
| 20110021713 | LONG CHAIN BRANCHED (LCB), BLOCK OR INTERCONNECTED COPOLYMERS OF ETHYLENE IN COMBINATION WITH ONE OTHER POLYMER - An ethylenic polymer comprising amyl groups from about 0.1 to about 2.0 units per 1000 carbon atoms as determined by Nuclear Magnetic Resonance and both a peak melting temperature, T | 01-27-2011 |
| 20140213735 | LONG CHAIN BRANCHED (LCB), BLOCK, OR INTERCONNECTED COPOLYMERS OF ETHYLENE IN COMBINATION WITH ONE OTHER POLYMER - An ethylenic polymer comprising amyl groups from about 0.1 to about 2.0 units per 1000 carbon atoms as determined by Nuclear Magnetic Resonance and both a peak melting temperature, T | 07-31-2014 |
