Entries |
Document | Title | Date |
20080281046 | Propylene Based Resin Composition - Disclosed is a propylene based resin composition comprising 1 to 99% by weight of a specific propylene based polymer (A) and 99 to 1% by weight of an olefin based block copolymer (B) comprising specific polymer segments (B1), (B1′) and (B2) (wherein the total amount of the propylene based polymer (A) and the olefin based block copolymer (B) is 100% by weight). | 11-13-2008 |
20080312377 | Low Surface Energy Block Copolymer Preparation Methods and Applications - Methods for the preparation of low surface energy block co-polymers are disclosed. The block co-polymers comprise at least two blocks, each of which comprises, in polymerized form, an acrylic monomer, a methacrylic monomer, or a mixture thereof. At least one block is a low surface energy block, which comprises, in polymerized form, a low surface energy monomer Low surface energy macroinitiators useful in forming the block co-polymers are also disclosed. The block co-polymers may be prepared by nitroxide mediated controlled free radical polymerization. | 12-18-2008 |
20080319130 | Blends of Styrenic Block Copolymers and Propylene-Alpha Olefin Copolymers - The present invention includes a composition comprising a propylene-alpha olefin copolymer having at least seventy weight percent units derived from propylene, and from ten to twenty five weight percent units derived from ethylene or a C4-C10 alpha olefin, the propylene-alpha olefin copolymer exhibiting a heat of fusion of less than 37 Joules/gram and a melt flow rate of from 0.1 to 100 gram/10 minutes; and a styrenic block copolymer, wherein the weight ratio of the propylene-alpha olefin copolymer to the styrenic block copolymer is from 3:7 to 7:3. The composition exhibits tensile modulus of less than 20 MPa, tensile strength of at least 5 MPa, and elongation at break of at least 900% with low relative immediate set. | 12-25-2008 |
20090023860 | HYDROGENATED AROMATIC VINYL COPOLYMER AND MOLDED ARTICLE PRODUCED FROM THE SAME - A hydrogenated aromatic vinyl copolymer obtained by hydrogenating a block copolymer comprising monomer units including an aromatic vinyl monomer and a conjugated diene monomer, wherein the block copolymer includes (A) 75 to 92% by mass of a constituent unit derived from the aromatic vinyl monomer and (B) 8 to 25% by mass of a constituent unit derived from the conjugated diene monomer (with the proviso that (A)+(B)=100% by mass) and is a branched block copolymer with a specific block structure which has a weight average molecular weight of 100,000 to 300,000, and 97% or more of the aromatic rings derived from the aromatic vinyl monomer and the double bonds derived from the conjugated diene monomer are hydrogenated. The hydrogenated aromatic vinyl copolymer has excellent transparency, excellent impact resistance, low water absorption, and a small birefringence index. | 01-22-2009 |
20090105417 | Polymer Blends from Interpolymers of Ethylene/Alpha-Olefin with Improved Compatibility - Disclosed herein are polymer blends comprising at least one ethylene/α-olefin interpolymer and two different poly-olefins which can be homopolymers. The ethylene/α-olefin interpolymers are block copolymers comprising at least a hard block and at least a soft block. In some embodiments, the ethylene/α-olefin interpolymer can function as a compatibilizer between the two polyolefins which may not be otherwise compatible. Methods of making the polymer blends and molded articles made from the polymer blends are also described. | 04-23-2009 |
20090186985 | Functionalized elastomer compositions - The present invention relates to olefinic compositions comprising a functionalized branched olefin copolymer containing functionalized sidechains derived from olefin and at least one chain end nucleophilic heteroatom containing functional group with at least one protic hydrogen, optionally with one or more copolymerizable monomers, the copolymer characterized by having A) a T | 07-23-2009 |
20090270556 | BLOCK COPOLYMER AND HYDROGENATED PRODUCT THEREOF - A block copolymer or hydrogenated product thereof having a polymer block A and a polymer block B, wherein:
| 10-29-2009 |
20090275701 | Curable Composition Based On Polyurethane And On Block Copolymers, And Transparent Material Obtained From Said Composition - Curable composition comprising: (a) one or more particular polyisocyanates or a polyurethane prepolymer obtained by the polycondensation of a polyisocyanate in excess, chosen from said polyisocyanates, with one or more polyols comprising at least two free alcohol functional groups, chosen from polypropoxylated or polyethoxylated bisphenol A compounds and polyfunctional polycaprolactone-alcohols; (b) one or more polyols comprising at least two free alcohol functional groups, chosen from polypropoxylated or polyethoxylated bisphenol A compounds and polyfunctional polycaprolactone-alcohols, and polyurethane prepolymers obtained by the polycondensation of one or more polyols in excess, chosen from the above polyols, with one or more particular polyisocyanates, the ratio of the number of isocyanate functional groups of the polyisocyanate component (a) to the number of alcohol functional groups of the polyol component (b) being between 1.00 and 1.20; and (c) 5% to 80% by weight, relative to the total weight of (a), (b) and (c), of one or more polystyrene-block-polybutadiene-block-poly(methyl methacrylate) block copolymers; | 11-05-2009 |
20090281242 | METHOD OF PREPARING A POLYMER FILM HAVING NANOSCALE FEATURES AT THE SURFACE AND THAT IS MICROSTRUCTURED IN ITS THICKNESS OVER ALL OR PART OF THIS FILM IN ACCORDANCE WITH A PARTICULAR SYSTEM - A method of preparing a polymer film having nanoscale features at the surface and being microstructured in its thickness over all or part of this film in accordance with a particular system including
| 11-12-2009 |
20100004395 | PROCESS FOR PRODUCING PROPYLENE BLOCK COPOLYMER - A production process of a propylene block copolymer, comprising the step (I) of polymerizing propylene alone or a combination of propylene with an olefin other than propylene, in the presence of a defined polymerization catalyst, to form a polymer component (1), and the step (II) of copolymerizing propylene with an olefin other than propylene in the presence of the polymer component (1), to form a polymer component (2), wherein a combination of a transition metal compound such as Zr(OR | 01-07-2010 |
20100004396 | POLYMERS OF FLUORINATED MONOMERS AND HYDROCARBON MONOMERS - It is provided a polymer blend that contains a polymer formed of fluorinated monomers and hydrocarbon monomers and another biocompatible polymer. | 01-07-2010 |
20100016508 | PROCESS FOR PRODUCING BLOCK COPOLYMER, AND BLOCK COPOLYMER OR HYDROGENATED PRODUCT THEREOF - The present invention provides a process for producing a block copolymer in high productivity, by anionic polymerization by use of a lithium initiator, and also to provide the block copolymer and a hydrogenated product thereof, the block copolymer having a conjugated diene block portion with a high vinyl bond content and a vinyl aromatic block portion with a narrow molecular weight distribution and exhibiting a narrow molecular weight distribution and high strength. A conjugated diene monomer and a vinyl aromatic monomer by use of a lithium initiator, are block copolymerized by making a tertiary amine compound and (2) sodium alkoxide coexist, wherein (2)/(1) (a molar ratio)=from 0.01 or more to less than 0.1. | 01-21-2010 |
20100113698 | POLYMER BLENDS WITH ETHYLENE/a-OLEFIN INTERPOLYMERS - Embodiments of the invention provide an impact modified composition comprising ethylene/α-olefin interpolymers. The ethylene/α-olefin interpolymers are characterized by an average block index, ABI, which is greater than zero and up to about 1.0 and a molecular weight distribution, M | 05-06-2010 |
20110040035 | Low Gloss Mass Polymerized Rubber-Modified Monovinylidene Aromatic Copolymer Composition - Disclosed is a mass polymerized rubber-modified monovinylidene aromatic copolymer composition with an excellent balance of aesthetic, physical and mechanical properties, in particular good impact with low consistent gloss across an injection molded textured part, and a method for preparing such a composition. | 02-17-2011 |
20110082257 | BLOCK COMPOSITES AND IMPACT MODIFIED COMPOSITIONS - Embodiments of the invention provide block composites and their use as impact modifiers. | 04-07-2011 |
20110196095 | Flexible Polypropylene With High Impact Strength - The present invention is directed to a first polypropylene composition comprising
| 08-11-2011 |
20110313106 | CRYSTALLINE BLOCK COMPOSITES AS COMPATIBILIZERS - Embodiments of the invention provide crystalline block composites and their use as compatibilizers. | 12-22-2011 |
20110313107 | CRYSTALLINE BLOCK COMPOSITES AS COMPATIBILIZERS - Embodiments of the invention provide crystalline block composites and their use as compatibilizers. | 12-22-2011 |
20120065332 | THERMOPLASTIC POLYMER COMPOSITION AND MOLDED PRODUCT - A thermoplastic polymer composition capable of exhibiting excellent impact resistance, durability and destaticizing property containing (A) 50 to 95% by mass of an aliphatic polyester-based resin and (B) 5 to 50% by mass of a block copolymer of (B1) a hard segment block with at least one of a polyamide, polyester, polyolefin or polyurethane, and (B2) a soft segment block having an ether bond. | 03-15-2012 |
20120184676 | COMPATIBLISED POLYOLEFIN COMPOSITIONS - Compatibilised polyolefin compositions combining the positive properties of their respective components by using an olefinic di- or triblock copolymer as compatibiliser to generate a finely dispersed phase structure in the molten state and to improve adhesion between the blend components in the solid state, while not compromising processability of the polyolefin composition. | 07-19-2012 |
20120208961 | BLOCK COMPOSITES AND IMPACT MODIFIED COMPOSITIONS - Embodiments of the invention provide block composites and their use as impact modifiers. | 08-16-2012 |
20120208962 | BLOCK COMPOSITES IN THERMOPLASTIC VULCANIZATE APPLICATIONS - Embodiments of the invention provide block composites and their use in thermoplastic vulcanizate compounds. | 08-16-2012 |
20140088255 | PROPYLENE RESIN MATERIAL AND METHOD FOR THE PRODUCTION THEREOF - Disclosed are a propylene resin material capable of affording a molded article superior in impact properties, tensile properties, and appearance, and a method for producing the same. The propylene resin material includes a propylene homopolymer portion and a propylene-ethylene copolymer portion and satisfies specific requirements. The production method includes the step of mixing an organic peroxide with a propylene polymeric material produced via a multistage polymerization process using a polymerization catalyst and comprising a propylene homopolymer portion and a propylene-ethylene copolymer portion, the step of heating the mixture obtained via the mixing step, at a temperature lower than a decomposition temperature of the organic peroxide at which the half-life of the organic peroxide is one minute, and the step of washing the mixture heated in the heating step, with a medium containing an organic solvent. | 03-27-2014 |
20140323656 | FUNCTIONALIZED BLOCK COMPOSITE AND CRYSTALLINE BLOCK COMPOSITE COMPOSITIONS - The invention provides functionalized block composites and crystalline block composites. In particular, the invention provides a functionalized olefin-based polymer formed from at least (A) and (B): (A) a crystalline block composite comprising: a block copolymer comprising a propylene-based crystalline block and crystalline ethylene-based block; a propylene-based crystalline polymer; and, a crystalline ethylene-based polymer; and (B) at least one functionalization agent or a functionalized olefin-based polymer formed from at least (A) and (B): (A) a crystalline block composite comprising: a block copolymer comprising a propylene-based crystalline block and crystalline ethylene-based block; a propylene-based crystalline polymer; and, a crystalline ethylene-based polymer; and (B) at least one functionalization agent. | 10-30-2014 |
20150368391 | IMPROVED POWDERED THERMOPLASTIC POLYOLEFIN ELASTOMER COMPOSITION FOR SLUSH MOLDING - The present invention relates to a thermoplastic polyolefin elastomer composition in powder form comprising an olefin block copolymer and optionally a high density polyethylene (HDPE), said composition having a Shore A hardness greater than 75, a Tg less than −45° C., a distinct melting peak greater than 95° C., a zero shear viscosity equal to or less than 1,200 Pa-s and a particle size distribution wherein 85 percent of the particles fall between 150 microns to 420 microns and no particles are greater than 500 microns. Said composition demonstrates good pulverizing and flow characteristics at a temperature of 5° C. or less than the distinct melting peak of the olefin block copolymer. In another aspect, this invention relates to a process for preparing said thermoplastic polyolefin elastomer powder and applications for using said powder. In a further aspect, this invention relates to slush molding or rotational molding said thermoplastic polyolefin elastomer composition into skins, for example skins for automotive interior applications, sporting good applications, housing and building applications, packaging materials, covering materials, toys, hollow parts, and the like. | 12-24-2015 |
20160200878 | Branched additives for polymer toughening | 07-14-2016 |
20180022913 | Block Copolymer Composition, Molded Material, Resin Composition, and Molded Product | 01-25-2018 |