Ester Derived From Dicarboxylic Acid Patents (Class 524/314)
  • Patent number: 4338227
    Abstract: Homogeneous blends of at least two non-crosslinked ethylene copolymers having different polar comonomer contents are mildly crosslinked to reduce their melt index. The crosslinked blend can be mixed with tackifier, plasticizer, filler and antioxidant to yield hot melt pressure sensitive adhesive compositions. In the alternative, at least one of the two ethylene copolymers can be crosslinked prior to blending in the hot melt pressure sensitive adhesive composition.
    Type: Grant
    Filed: April 24, 1981
    Date of Patent: July 6, 1982
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Edward C. Ballard
  • Patent number: 4336173
    Abstract: The invention provides a process for preparing an aqueous emulsion or dispersion of a partly water-soluble material, and optionally further conversion of the prepared dispersion or emulsion to a polymer dispersion when the partly water-soluble material is a polymerizable monomer. In a first step a dispersion of polymer particles is prepared containing one or more materials having a very low solubility in water, then in a second step there is added the partly water-soluble material which diffuses into the particles from the first step, and then, if the partly water-soluble material is a polymerizable monomer, polymerization may be effected.
    Type: Grant
    Filed: September 10, 1980
    Date of Patent: June 22, 1982
    Assignee: SINTEF
    Inventor: John Ugelstad
  • Patent number: 4323495
    Abstract: Novel branched-chain monoalcohols and derivatives thereof are disclosed. Such derivatives are selected from the group consisting of(a) esters of aromatic, aliphatic or cycloaliphatic acids having at least 2 carbon atoms and 1, 2 or 3 carboxyl groups;(b) urethanes of aromatic, aliphatic or cycloaliphatic isocyanates;(c) monoethers of polyalkylene oxide glycols having 2 to 50 alkylene oxide units each containing 2 or 3 carbon atoms and the alkylpolyoxyalkylene sulfates derived therefrom;(d) sulfates.The branched-chain monoalcohols are obtained by reduction of branched-chain monocarboxylic acids or esters thereof. Said acids are telomeric acids obtained by the free radical addition of 1 mole of acetic anhydride to at least three moles of hexene and/or higher olefins containing up to 30 or more carbon atoms (C.sub.30+) in the presence of a trivalent manganese compound. The products of this invention are suitable for use in engine lubricating oils, lubricant compositions for polymers and wax compositions.
    Type: Grant
    Filed: October 26, 1979
    Date of Patent: April 6, 1982
    Assignee: Akzona Incorporated
    Inventors: Jacobus J. Zeilstra, Willem J. de Klein, Joannes D. Bik
  • Patent number: 4322330
    Abstract: An adhesive for floor coverings containing(a) 100 parts by weight of an aqueous polymer dispersion having a solids content of from 30% to 70% by weight of the total weight of said dispersion, the solids content consisting of synthetic resin particles of at least a bimodal particle size distribution wherein the majority of the larger particles is at least twice the size of the majority of the smaller particles and where the majority of the larger particles has a particle size distribution of from 0.5 to 3 .mu.m and the majority of the smaller particles has a particle size distribution of from 0.1 to 1 .mu.
    Type: Grant
    Filed: July 10, 1980
    Date of Patent: March 30, 1982
    Assignee: Wacker-Chemie GmbH
    Inventors: Ekkehard Merz, Gerhard Kothe