Patents by Inventor Annibale Vezzoli
Annibale Vezzoli has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5811039Abstract: A process is presented for fabricating composite bodies of thermoplastic material including a foamed core bonded to a compatible thermoplastic sheet. A sheet of thermoplastic material is first preheated and then thermoformed on a first half-mould. The first half-mould with the thermoformed sheet is positioned opposite a second half-mould to form a hollow chamber therebetween. A foamable thermoplastic material containing one or more liquid hydrocarbons is injected into the hollow space at a temperature sufficiently high to permit the foamable material to expand and bond to the thermoformed sheet.Type: GrantFiled: July 6, 1994Date of Patent: September 22, 1998Assignee: Montell Italia S.p.A.Inventors: Antonio Addeo, Annibale Vezzoli, Antonio Zentile
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Patent number: 5622763Abstract: Containers, which are impervious to hydrocarbon vapors, in particular to fuel vapors, and comprise an outer shell of plastic material, which is coated with a polyamide layer at least on the surface in contact with the fuel.Said containers are used in the sector of the fuel industry, in particular in the automotive industry, as tanks for automobiles and motor vehicles.Type: GrantFiled: July 22, 1996Date of Patent: April 22, 1997Assignee: Montedipe S.r.l.Inventors: Annibale Vezzoli, Aldemaro Ciaperoni, Piero Furlan
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Patent number: 5609803Abstract: A process for producing bodies of polymeric material having an outer shell and a core of foamed material is disclosed. The process includes the steps of: providing a mold having a pair of separable half-molds arranged facing each other; extruding a tubular thermoplastic parison between the half-molds; closing the half-molds around the parison, thereby defining a hollow space between the parison and walls of the mold; injecting into the inside of the parison a thermoplastic polymeric material admixed with a physical blowing agent, the parison expanding into contact with the walls of the mold, and conforming to the shape of the mold; and removing the article form the mold.Type: GrantFiled: November 28, 1994Date of Patent: March 11, 1997Assignee: Centro Sviluppo Settori Impiego S.r.1.Inventors: Antonio Addeo, Francesco Mascia, Annibale Vezzoli, Aurelio Biscotti
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Patent number: 5567491Abstract: Containers, which are impervious to hydrocarbon vapors, in particular to fuel vapors, and comprise an outer shell of plastic material, which is coated with a polyamide layer at least on the surface in contact with the fuel.Said containers are used in the sector of the fuel industry, in particular in the automotive industry, as tanks for automobiles and motor vehicles.Type: GrantFiled: January 31, 1995Date of Patent: October 22, 1996Assignee: Montedipe S.r.l.Inventors: Annibale Vezzoli, Aldemaro Ciaperoni, Piero Furlan
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Patent number: 5527570Abstract: Multilayer and multifunctional packaging elements having a high-absorption activity toward aqueous liquid substances as well as barrier properties toward gases such as oxygen and carbon dioxide are prepared by thermoforming.The packaging elements includes an inner porous layer, an intermediate absorbing layer and an outer sheet having high barrier properties toward gases. The intermediate layer may contain anti-bacterial agents.Type: GrantFiled: August 17, 1994Date of Patent: June 18, 1996Assignee: Centro Sviluppo Settori Impiego S.R.L.Inventors: Antonio Addeo, Annibale Vezzoli, Gianluigi Vestrucci
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Patent number: 5387452Abstract: A process for preparing thermoinsulating and/or structural double-walled molded bodies, which comprises the following steps:(a) heating two sheets made of thermoplastic polymer to a temperature equal or slightly higher than their softening point;(b) inserting between the two sheets a pre-mold made of an expanded polymeric material;(c) thermoforming in a mold the two sheets on the pre-mold;(d) soldering together the two sheets on their rims by means of a pressure applied on them by the mold.Type: GrantFiled: December 22, 1993Date of Patent: February 7, 1995Assignee: Centro Sviluppon Settori ImpiegoInventors: Antonio Addeo, Annibale Vezzoli
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Patent number: 5368458Abstract: an apparatus for producing bodies of polymeric material having an outer shell and a core of foamed material is disclosed. The apparatus includes an extruder and accumulation chamber for extruding a tubular element, i.e., a parison, and a second extruder and accumulation chamber for injecting a foamable polymeric material for forming the core of the body inside the parison. The injection occurs inside the walls of a mold, which causes the tubular parison to undergo swelling due to the expansion of the foamable material until the parison conforms to the shape of the mold.Type: GrantFiled: March 8, 1994Date of Patent: November 29, 1994Assignee: Centro Sviluppo Settori Impiego S.r.l.Inventors: Antonio Addeo, Francesco Mascia, Annibale Vezzoli, Aurelio Biscotti
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Patent number: 5364254Abstract: A die for co-extruding structural shapes is provided with a central cylindrical duct through which the molten polymeric material destined to constitute the central core of the structural shape flows, and a conical gap, coaxial with the central duct, into which the polymeric coating material is fed which will constitute the outer skin of the structural shape.Type: GrantFiled: February 28, 1994Date of Patent: November 15, 1994Assignees: Centro Sviluppo Settori Impiego S.r.l., Milani Resine S.p.A.Inventors: Annibale Vezzoli, Marino Lamperti, Antonio Addeo, Francesco Milani, Bruno Albrisi
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Patent number: 5338764Abstract: Foamed propylene polymer articles are prepared by subjecting pre-foamed beads, that consist essentially of propylene polymers having a melt strength from 5 to 40 cN, to thermoforming by sintering.Type: GrantFiled: February 24, 1994Date of Patent: August 16, 1994Assignee: Himont IncorporatedInventors: Giuseppe Lesca, Daniele Romanini, Annibale Vezzoli
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Patent number: 5324753Abstract: Foamed propylene polymer articles are prepared by subjecting pre-foamed beads, that consist essentially of propylene polymers having a melt strength from 5 to 40 cN, to thermoforming by sintering.Type: GrantFiled: September 10, 1993Date of Patent: June 28, 1994Assignee: Himont IncorporatedInventors: Giuseppe Lesca, Daniele Romanini, Annibale Vezzoli
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Patent number: 5308557Abstract: A process for preparing thermoinsulating and/or structural double-walled molded bodies, which includes the following steps:(a) heating two sheets made of thermoplastic polymer to a temperature equal or slightly higher than their softening point;(b) inserting between the two sheets a pre-mold made of an expanded polymeric material;(c) thermoforming in a mold the two sheets on the pre-mold;(d) soldering together the two sheets on their rims by means of a pressure applied on them by the mold.Type: GrantFiled: June 26, 1992Date of Patent: May 3, 1994Assignee: Centro Sviluppon Settori Impiego S.r.l.Inventors: Antonio Addeo, Annibale Vezzoli
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Patent number: 5286552Abstract: Disclosed are films and laminates which are prepared by known filming or calendering processes using heterophasic propylene polymer compositions comprising:A) 10-60 parts by weight of homopolymer polypropylene having an isotactic index greater than 90, or crystalline copolymer of propylene with ethylene and/or other alphaolefins containing more than 85% by weight of propylene and having an isotactic index greater than 85;B) 10-40 parts by weight of a semi-crystalline essentially linear copolymer containing prevailingly ethylene, which is insoluble in xylene at room temperature;C) 30-60 parts by weight of an amorphous ethylene-propylene copolymer, soluble in xylene at room temperature and containing 40-70% by weight of ethylene;said propylene polymer compositions having a ratio between the intrinsic viscosities, in tetrahydronaphthalene at 135.degree. C., of the portion soluble in xylene and of the portion insoluble in xylene at room temperature of from 0.8 to 1.2.Type: GrantFiled: February 25, 1991Date of Patent: February 15, 1994Assignee: Himont IncorporatedInventors: Giuseppe Lesca, Vincenzo Giannella, Serafino Ongari, Annibale Vezzoli
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Patent number: 5262117Abstract: A process for preparing thermoinsulating and structural formal articles in which(a) a thermoplastic polymer sheet is heated at a temperature above its softening point;(b) the heated thermoplastic polymer sheet is thermoformed on a thermoinsulating foamed preform made of substantially the same polymeric material; and in which(c) prior to the thermoforming in step (b), the thermoinsulating foamed preform is cooled to prevent excessive collapse of the surface of the thermoinsulating foamed preform resulting from contact with the heated sheet.Type: GrantFiled: September 14, 1992Date of Patent: November 16, 1993Assignee: Centro Sviluppo Settori Impiego S.r.l.Inventors: Antonio Addeo, Lucio Pinetti, Annibale Vezzoli, Francesco Mascia
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Patent number: 5246115Abstract: A process is taught for separating heterogeneous plastic material into homogeneous fractions, which comprises:a. feeding the plastic material in a triturated form to a first water-containing separation tank to separate the high specific weight products from the low specific weight products;b. recovering the mixture of high specific weight products from the bottom of said first separation tank and drying them in a first drier;c. treating the resulting mixture with a chemical agent capable of swelling/modifying the plastic materials which are sensible to said chemical agent; andd. drying the products so treated and feeding them to a second separation tank, in which the nonswollen/nonmodified plastic material precipitates while the remaining material, maintained on the surface, is discharged.Type: GrantFiled: August 1, 1991Date of Patent: September 21, 1993Assignee: Centro Sviluppo Settori Impiego S.r.l.Inventors: Annibale Vezzoli, Marino Lamperti, Francesco Milani, Bruno Albrisi
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Patent number: 4985303Abstract: Process for preparing heat-insulating structural elements, which comprises the steps of:(a) applying to the convex portion of a first half-shell a layer of beads made from a semi-foamed or foamed thermoplastic polymer, in order to produce a layer with an essentially constant thickness;(b) sintering the beads; and(c) applying to the so obtained composite a second half-shell capable of fitting the shape of the sintered layer.Type: GrantFiled: July 24, 1990Date of Patent: January 15, 1991Assignee: Centro Sviluppo Settori Impiego S.r.l.Inventors: Antonio Addeo, Alberto Bonvini, Romano Reggiani, Annibale Vezzoli
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Patent number: 4959397Abstract: Soft and low-density foam materials, obtained by means of an extrusion expansion (with physical blowing agents) of particular copolymers of ethylene with vinylacetate (and/or with alkyl esters of acrylic or methacrylic acid), are found to be very suitable for the manufacture of expanded articles with little shrinkage after expansion, free from creases on the surface or cracks on the cell walls, and having excellent characteristics, higher compressive strength and so on.Type: GrantFiled: April 13, 1989Date of Patent: September 25, 1990Assignee: Montedipe S.p.A.Inventors: Corrado Brichta, Annibale Vezzoli, Angelo Borghi
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Patent number: 4948820Abstract: Selective thermodegradation of homo- and copolymers of propylene, without encountering thermo-oxidation phenomena, by treating the polymer at 250.degree.-350.degree. C. in the presence of primary and/or secondary antioxidant and of a derivative of benzopinacol having formula (I): ##STR1## wherein n=1, or=0, and when n=1, X may be=1, and in this case Z.sub.1 and Z.sub.2 form together with each other ##STR2## groups, ##STR3## wherein R.sub.1, R.sub.2, R.sub.3, which may be the same or different, are alkyl or aryl radicals;or X ranges from 3 to 20 and in this case Z.sub.1 and Z.sub.2 are aryl radicals, A and B are R.sub.1 -Si-R.sub.2 groups that are part of an oligomer having formula: ##STR4## and when n=0, X is=1, Z.sub.1 and Z.sub.Type: GrantFiled: January 27, 1989Date of Patent: August 14, 1990Assignee: Montedipe S.p.A.Inventors: Antonio Addeo, Annibale Vezzoli, Stefano Saccardi, Corrado Brichta
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Patent number: 4946871Abstract: Soft and low-density foam materials, obtained by means of an extrusion expansion (with physical blowing agents) of particular copolymers of ethylene with vinylacetate (and/or with alkyl esters of acrylic or methacrylic acid), are found to be very suitable for the manufacture of expanded articles with little shrinkage after expansion, free from creases on the surface or cracks on the cell walls, and having excellent characteristics, higher compressive strength and so on.Type: GrantFiled: December 19, 1989Date of Patent: August 7, 1990Assignee: Montedipe S.p.A.Inventors: Corrado Brichta, Annibale Vezzoli, Angelo Borghi
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Patent number: 4939207Abstract: Blends based on vinyl-aromatic polymers endowed with high tenacity and good chemical resistance, comprising:40 to 98% by weight of a vinyl-aromatic polymer containing from 0.5 to 5% by weight of a vinyl-aromatic monomer conjugated diene block copolymer;1-54% by weight of a polyolefine; and1-20% by weight of a vinyl-aromatic monomer-conjugated diene star block copolymer; the sum of the three components being equal to 100%.Type: GrantFiled: May 13, 1988Date of Patent: July 3, 1990Assignee: Montedipe S.p.A.Inventors: Gian C. Fasulo, Annibale Vezzoli, Giorgio Vittadini
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Patent number: 4666947Abstract: Compositions based on ethylene/vinylacetate copolymers provided with self-extinguishing properties and suitable for the preparation of foamed materials, comprising for 100 parts by weight of the EVA copolymers:from 5 to 10 parts by weight of at least a bromodiphenylether containing at least 3 bromine atoms;from 2 to 4 parts by weight of a metal oxide selected from antimony, bismuth and tungsten oxides; andfrom 0.1 to 1 part by weight of a compound having general formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, equal or different from each other, can by hydrogen, chlorine, bromine, aliphatic hydrocarbon radicals containing from 1 to 6 carbon atoms, cyclohexyl or phenyl radicals, the nitro group or the --CN group.R.sub.5, R.sub.6, equal or different, can be hydrogen, chlorine, bromine, aliphatic hydrocarbon radicals containing from 1 to 3 carbon atoms, or alkoxy radicals containing 1 to 4 carbon atoms or ##STR2## groups, R.sub.7 being an alkyl radical containing from 1 to 3 carbon atoms.Type: GrantFiled: November 13, 1984Date of Patent: May 19, 1987Assignee: Montepolimeri S.p.A.Inventors: Corrado Brichta, Annibale Vezzoli, Pietro Origgi