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Plastomer

About: Plastomer is a research topic. Over the lifetime, 388 publications have been published within this topic receiving 4160 citations.


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Patent
05 May 1988
TL;DR: In this paper, a graft-modified polyolefinear plastomer was used to obtain a composition excellent in the oil resistance, the mechanical strength and the resistance against heat aging.
Abstract: THERMOPLASTIC RESIN COMPOSITION In the case where a polyamide is blended with a specific partially crosslinked graft-modified polyolefin elastomer obtained by dynamically heat-treating a blend of a peroxide-crosslinking olefin copolymer rubber and an olefinic plastic with an unsaturated carboxylic acid or derivative thereof, an unsaturated epoxy monomer or an unsaturated hydroxy monomer in the presence of an organic peroxide, if the graft-modified polyolefin plastomer occupies a major portion, a composition excellent in the oil resistance, the mechanical strength and the resistance against heat aging is obtained and if the polyamide occupies a major portion, a composition excellent in the impact resistance, the rigidity and the tensile strength is obtained.

67 citations

Patent
Philip Jacoby1, Mark Allen Sherman1
14 Mar 1997
TL;DR: In this article, the authors proposed a glass-filled polyolefin composition consisting of: a propylene polymer having an nmr tacticity index of at least 94 and a molecular weight distribution of about 7 to 15; a stiffness-enhancing amount of glass fiber; an impact-modifying amount of a plastomer copolymer of ethylene with a C4-C6 alpha-olefin having a density of about 0.865 to 0.910 g/cc.
Abstract: A tough, strong, stiff glass-filled polyolefin composition comprises: a propylene polymer having an nmr tacticity index of at least 94 and a molecular weight distribution of about 7 to 15; a stiffness-enhancing amount of glass fiber; an impact-modifying amount of a plastomer copolymer of ethylene with a C4-C6 alpha-olefin having a density of about 0.865 to about 0.910 g/cc; and a functionalized olefin polymer in a sufficient amount to act as a compatibility agent between polymeric materials and the glass fiber.

66 citations

Patent
24 Dec 1997
TL;DR: In this paper, a photographic element comprising a paper base, at least one photosensitive silver halide layer, and a layer of biaxially oriented polyolefin sheet between the paper base and the photo sensitive layer is described.
Abstract: The invention relates to a photographic element comprising a paper base, at least one photosensitive silver halide layer, a layer of biaxially oriented polyolefin sheet between said paper base and said silver halide layer, wherein there is located between said biaxially oriented polyolefin sheet and said base paper a layer of adhesive resin comprising an ethylene polymer blended with at least one member selected from the group consisting of metallocene catalyzed polyolefin plastomer, ionomer, ethylene vinyl acetate copolymer, ethylene methyl methacrylate copolymer, ethylene ethyl acrylate copolymer, ethylene methyl acrylate copolymer, ethylene acrylic acid copolymer, ethylene ethyl acrylate maleic anhydride copolymer, or ethylene methacrylic acid copolymer.

59 citations

01 Jan 2016
TL;DR: In this paper, the effect of different mineral fillers in asphalt mastic on moisture damage resistance using Bitumen Bond Strength (BBS) test was determined. And the most effective filler types were found with the hybrid polymer combination that enhanced binding with filler and strength of binder.
Abstract: Moisture damage of asphalt mixtures can be caused either by adhesive failure between asphalt binder and aggregate surface or by cohesive failure within the asphalt mastic caused by the interaction with moisture. Many studies have tested the bonding interaction of aggregate and asphalt binders using the Bitumen Bond Strength (BBS) test, however there is very limited research on effect of moisture on cohesive failure caused by asphalt mastic bonding deterioration. The objective of this study is to determine the effect of different mineral fillers in asphalt mastic on moisture damage resistance using BBS test. Results collected indicate that surface area of mineral fillers and mineralogy of filler have significant effect on moisture damage resistance. Results also show that there is significant effect of asphalt modification on moisture damage measurements. In this study asphalt modification included a plastomer, an elastomer and a mix of plastomer and elastomer (hybrid). For the binders and fillers used in the study the most effective moisture damage resistance for all the filler types was found with the hybrid polymer combination that enhanced binding with filler and strength of binder. Analysis of results confirm cohesion failures of mastics could be more important than adhesion of mastics to large aggregates in the mixture. Thus, the concept of testing the mastic with the filler and polymers intended for production of mixture appears to give an effective tool to predict the adhesion and cohesion performance before and after water conditioning.

59 citations

Patent
09 Apr 2001
TL;DR: In this paper, a process for the production of a propylene-based polymer is described, which consists of a first polymerization stage comprising homopolymerizing propylene or copolymerizing polypropylene and at least one α-olefin in the presence of an α -olefin polymerization catalyst whereby to produce a poly-propylene component; a second polymerisation stage comprising copolymersizing ethylene or polyethylene, and a third one copolyminating polyamide/α-olfin to produce an ethylene/αolefin copoly
Abstract: The invention provides a process for the production of a propylene based polymer, said process comprising the following steps: (a) a first polymerization stage comprising homopolymerizing propylene or copolymerizing propylene and at least one α-olefin in the presence of an α-olefin polymerization catalyst whereby to produce a polypropylene component; (b) a second polymerization stage comprising copolymerizing ethylene and at least one α-olefin in the presence of an α-olefin polymerization catalyst whereby to produce an ethylene/α-olefin copolymer component; and (c) blending the polymer components produced in steps (a) and (b) whereby to produce a polymer blend, wherein said first and second polymerization stages are effected in separate polymerization reactors connected in parallel. Also provided are novel polymer compositions comprising: (i) 30 to 97 % by weight, based on the total weight of the polymer composition, of a propylene based polymer; and (ii) 3 to 70 % by weight, preferably 5 to 20 % by weight, based on the total weight of the polymer composition, of an ethylene copolymer plastomer (e.g. an ethylene-propylene plastomer) containing at least 60 % by weight ethylene.

58 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202112
202026
201914
20188
201713
201620