Patents by Inventor Luigi Pellacani

Luigi Pellacani 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).

  • Patent number: 11124597
    Abstract: A process for making a curable resin composition comprising the steps of: (1) reacting a) an isocyanate; and b) a polyol mixture with a bimodal distribution of i) a first polyol mixture comprising polyols having an average equivalent weight of from 50 to 400; and ii) a second polyol mixture comprising polyols having an average equivalent weight of from 1000 to 5000 to form a urethane prepolymer; and (2) adding a capping agent to the urethane prepolymer to form the curable resin composition.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: September 21, 2021
    Assignee: Dow Global Technologies LLC
    Inventors: Muhammad A. Shafi, Huifeng Qian, Luigi Pellacani, Dwight D. Latham, William L. Heaner, IV, Qiuyun Xu, Harshad M. Shah
  • Publication number: 20210147606
    Abstract: Embodiments of the present disclosure are directed towards directed towards heat curing compositions. The heat curing compositions can include an isocyanate component, wherein the isocyanate component includes an isocyanate-polyol reaction product, an epoxy material, and a Lewis acid-amine complex, wherein the heat curing composition has an isocyanate group to epoxide group ratio from 3:1 to 20:1.
    Type: Application
    Filed: August 29, 2018
    Publication date: May 20, 2021
    Applicant: Dow Global Technologies LLC
    Inventors: Luigi Pellacani, Huifeng Qian
  • Publication number: 20210070922
    Abstract: Controllable-cure urethane acrylate resin compositions are disclosed, comprising (A) a urethane acrylate having free hydroxyalkyl (meth) acrylate prepared from a polyurethane prepolymer having a free terminal isocyanate group and a hydroxyalkyl (meth)acrylate, the urethane acrylate having free hydroxyalkyl (meth) acrylate being the reaction product of capping the polyurethane prepolymer in the presence excess of the hydroxyalkyl (meth)acrylate, (B) a polyisocyanate-based thickening agent, and optionally an additional hydroxyalkyl (meth)acrylate, wherein the polyisocyanate-based thickening agent (B) and the urethane acrylate having free hydroxyalkyl (meth) acrylate (A), and optionally the additional hydroxyalkyl (meth)acrylate, are present at NCO/OH molar ratio of from 0.2 to 10.0. Methods for making controllable-cure urethane acrylate resin compositions are disclosed.
    Type: Application
    Filed: November 13, 2018
    Publication date: March 11, 2021
    Applicant: Dow Global Technologies LLC
    Inventors: Huifeng Qian, Luigi Pellacani, Muhammad A. Shafi
  • Publication number: 20200291166
    Abstract: A curable resin composition comprising: (1) a urethane (meth)acrylate; (2) a reactive diluent selected from the group consisting of i) a hydroxyl alkyl (meth)acrylate monomer where the acrylate group, which is attached to the carbonyl group, is attached to a hydrogen or a methyl group and the carbonyl group is attached to the hydroxyl group thru an R2 alkylene group containing 2 to 18 carbon atoms per molecule.
    Type: Application
    Filed: March 1, 2017
    Publication date: September 17, 2020
    Inventors: Huifeng Qian, Muhammad A Shafi, Luigi Pellacani, Harshad M. Shah, Dwight Latham, Qiuyun Xu, William L. Heaner, Emanuele Maiocchi
  • Publication number: 20200291168
    Abstract: A curable resin composition comprising: (1) a urethane (meth)acrylate; (2) a reactive diluent comprising at least 20 percent by weight of glycols and/or polyols with terminal acrylate or methacrylate groups; and (3) a free radical-generating catalyst, is disclosed.
    Type: Application
    Filed: February 23, 2017
    Publication date: September 17, 2020
    Inventors: Luigi Pellacani, Huifeng Qian, Muhammad Shafi
  • Publication number: 20200172655
    Abstract: In various embodiments, a resin composition includes a urethane (meth)acrylate, and an inhibitor package. The inhibitor package includes at least one nitroxide radical and at least one base. The base is selected from the group consisting of tertiary amine bases, alkoxides, and hydroxides having a pH in water of greater than 8.2. Process for making the resin composition as well as processes using the resin composition are also provided.
    Type: Application
    Filed: August 22, 2018
    Publication date: June 4, 2020
    Applicant: Dow Global Technologies LLC
    Inventors: Huifeng Qian, Asjad Shafi, Robert Bellair, Thomas Willumstad, Florin Dan, Brenton Drake, Luigi Pellacani
  • Publication number: 20190375882
    Abstract: In various embodiments, a resin composition includes a urethane (meth)acrylate, a reactive diluent, and a urethane (meth)acrylate toughener. The urethane (meth)acrylate toughener includes at least one additional polyol having a number average molecular weight Mn of greater than 1,000 g/mol. Cured articles made from the resin composition have an average fracture toughness (KIc) value from 1 MPa*m1/2 to 3 MPa*m1/2 when measured in accordance with ASTM D5045. Processes for making the resin composition as well as processes using the resin composition are also provided.
    Type: Application
    Filed: September 7, 2017
    Publication date: December 12, 2019
    Applicant: Dow Global Technologies LLC
    Inventors: Huifeng Qian, Rajat Duggal, Muhammad A. Shafi, Luigi Pellacani, Harshad M. Shah
  • Publication number: 20190092896
    Abstract: A curable resin composition comprising: (1) a urethane (meth)acrylate comprising a) urethane (meth)acrylate oligomers with a number average molecular weight in the range of from 400 to 1500; and b) urethane (meth)acrylate oligomers with a number average molecular weight in the range of from 1500 to 10000, present in a weight ratio of from 0.1:1 to 25:1; (2) a reactive diluent; and (3) a free radical-generating catalyst, is disclosed.
    Type: Application
    Filed: February 27, 2017
    Publication date: March 28, 2019
    Inventors: Huifeng Qian, Muhammad A. Shafi, Luigi Pellacani
  • Publication number: 20130251980
    Abstract: Embodiments of the invention provide for polyurethane or polyisocyanurate foam formulations. The formulations include a formulated polyol, a polyisocyanate, and a blowing agent such that the stoichiometric index of the polyisocyanate to the formulated polyol is above 250. The formulated polyol includes (i) from about 20 to about 60 percent by weight of an aromatic polyester polyol, (ii) from about 10 to about 30 percent by weight of a Novolac-type polyether polyol, and (iii) from about 5 to about 40 percent by weight of a polyether polyol including a sucrose- or sorbitol-initiated polyol. Components (i), (ii), and (iii) are selected so that the formulated polyol as a whole has an average functionality of at least about 2.4.
    Type: Application
    Filed: December 15, 2011
    Publication date: September 26, 2013
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Luigi Pellacani, Paolo Golini, Peter Keller
  • Publication number: 20120189838
    Abstract: A layered insulation panel including a rigid polyisocyanurate foam layer and, adhered to at least one surface thereof, a facing material. The two materials are adhered by a two-component polyisocyanurate adhesive, and both the polyisocyanurate adhesive and the polyisocyanurate foam layer undergo polymerization concurrently and in place. The result is that the tensile bond strength between the polyisocyanurate foam layer and the facing surface is improved, due to interaction between the polymerization occurring at the surface of the foam layer and the polymerization of the polyisocyanurate adhesive.
    Type: Application
    Filed: September 15, 2010
    Publication date: July 26, 2012
    Applicant: Dow Global Technologies LLC
    Inventors: Luigi Pellacani, Robert M. Davidson, Alberto Fangareggi, Francesca Pignagnoli, Maurizio Guandalini
  • Publication number: 20060142529
    Abstract: The present invention relates an MDI-based isocyanate-terminated prepolymer suitable for preparing a hydrophilic polyurethane polymer. The MDI-based composition comprises a prepolymer obtained by reacting isocyanate mixture comprising 2,4?-methylene diphenylisocyanate (MDI) and 4,4?-methylene diphenylisocyanate in a molar ratio of from 25:75 to 80:20 with a polyether polyol having an oxyethylene content of at least 30 percent by weight.
    Type: Application
    Filed: February 6, 2004
    Publication date: June 29, 2006
    Inventors: Verena Thiede, Luigi Pellacani, Netza Lopez, Franklin Parks
  • Publication number: 20030212236
    Abstract: A composition is disclosed for producing an elastomer using toluene diisocyanate prepolymers. The composition is prepared by mixing (a) polyisocyanate, (b) curative component and (c) a catalyst consisting essentially of 1,8-diazabicyclo(5,4,0) undec-7-ene; wherein the polyisocyanate comprises at least 70 percent by weight of the isocyanate containing composition is a toluene diisocyanate terminated prepolymer containing less than about 2 percent by weight free toluene diisocyanate monomer and the curative component contains compounds having isocyanate-reactive groups, wherein at least 40 percent by weight of the compounds having isocyanate-reactive groups are compounds having at least one hydroxyl group.
    Type: Application
    Filed: October 23, 2002
    Publication date: November 13, 2003
    Inventors: Luigi Pellacani, Holger Paschke, Michael Janssen, Klaus Haase
  • Patent number: 5859285
    Abstract: Disclosed is a carbamate adduct prepared by contacting carbon dioxide with an alkanolamine, preferably in a polar medium. The alkanolamine is characterized in that it consists of 1 or 2 ether linkages per molecule. The adduct finds value as a thermally decomposable blowing agent when preparing polyurethane foam and elastomeric products. Integral-skinned polyurethane products prepared in the presence of the carbamate adducts disclosed herein exhibit an enhanced abrasion resistance.
    Type: Grant
    Filed: May 8, 1998
    Date of Patent: January 12, 1999
    Assignee: The Dow Chemical Company
    Inventors: Giuliano Guidetti, Luigi Pellacani, Maurizio Bottazzi
  • Patent number: 5789451
    Abstract: Disclosed is a carbamate adduct prepared by contacting carbon dioxide with an alkanolamine, preferably in a polar medium. The alkanolamine is characterized in that it consists of 1 or 2 ether linkages per molecule. The adduct finds value as a thermally decomposable blowing agent when preparing polyurethane foam and elastomeric products. Integral-skinned polyurethane products prepared in the presence of the carbamate adducts disclosed herein exhibit an enhanced abrasion resistance.
    Type: Grant
    Filed: July 29, 1996
    Date of Patent: August 4, 1998
    Assignee: The Dow Chemcial Company
    Inventors: Giuliano Guidetti, Luigi Pellacani, Maurizio Bottazzi