Aromatic Hydrocarbon Patents (Class 524/484)
  • Patent number: 4399252
    Abstract: Process oil is made by conversion from "waste" materials, particularly used oils, and most particularly used crankcase oils, by flash evaporation at about 250.degree. F. and filtration for removal of solids therefrom, to produce a product substantially free of water and low boiling point components and of contaminant solids, which has a flash point above 310.degree. F., or is blended with other products from the same process to produce a final product having a flash point above 310.degree. F., and an aromatic content above 10%, preferably above 20%, by weight. The product may be used generally in a wide variety of process oil applications but is most particularly adapted for use as a rubber process oil and such use is also part of the present invention.
    Type: Grant
    Filed: March 24, 1981
    Date of Patent: August 16, 1983
    Assignee: Petrocon Corporation
    Inventor: John J. Cunningham
  • Patent number: 4391942
    Abstract: There is disclosed a rubber composition having excellent vibration-insulating properties. The rubber composition comprises 45 to 75 parts by weight of at least one rubber selected from the group consisting of natural rubber, isoprene rubber, butadiene rubber and styrene-butadiene rubber; 40 to 20 parts by weight of halogenated butyl rubber; 5 to 15 parts by weight of copolymer having a styrene content of not less than 50%; 20 to 80 parts by weight of carbon black based on 100 parts by weight of the total of the above rubbers and copolymer; and 3 to 25 parts by weight of aromatic process oil based on 100 parts by weight of the total of the above rubbers and copolymer.
    Type: Grant
    Filed: April 6, 1982
    Date of Patent: July 5, 1983
    Assignee: Bridgestone Tire Co., Ltd.
    Inventors: Hideo Nakauchi, Shingo Kato, Yukio Ando
  • Patent number: 4388434
    Abstract: The specification discloses a lithographic ink vehicle containing an addition copolymer of ethylenically unsaturated monomers having a critical calculated second order transition temperature (T.sub.g), and a critical molecular weight, utilizing as the essential solvents in the ink a predominantly aliphatic hydrocarbon having a kauri-butanol value of between about 18 and 31, preferably between about 21 and 28, in which the polymer must be soluble. Among the preferred monomers are isobornyl methacrylate and isobutyl methacrylate. Other ethylenically unsaturated monomers may be included, particularly functional monomers in small amounts having acid or amine groups.
    Type: Grant
    Filed: December 8, 1980
    Date of Patent: June 14, 1983
    Assignee: Rohm and Haas Company
    Inventors: Graham Swift, Harry J. Cenci, Raymond F. Jenkins
  • Patent number: 4384070
    Abstract: Pigmented coating solutions are disclosed which deposit coatings possessing improved resistance to ultraviolet radiation-induced auto-oxidation. These solutions contain organic solvent, including aromatic hydrocarbon solvent, having dissolved therein an aromatic hydrocarbon-soluble, normally liquid, polysulfide or polydisulfide derivative having terminal -SH groups which have been reacted with a monofunctional reactant providing a C.sub.1 -C.sub.22 alkyl terminal group to provide an essentially nonreactive derivative. The solvent also has dissolved therein a polar polymeric binder (preferably thermosetting) which degrades by a photo-oxidative mechanism and which has only limited compatibility with the derivative. The pigment protects the bulk of a deposited coating, and the limited compatibility causes a heated film of the coating solution to stratify as the solvent evaporates to concentrate the derivative at the surface of the cured coating to protect the same.
    Type: Grant
    Filed: July 2, 1981
    Date of Patent: May 17, 1983
    Assignee: DeSoto, Inc.
    Inventors: Joseph E. Gaske, Thomas H. Plaisance, Hannu K. Pennanen
  • Patent number: 4371640
    Abstract: This invention relates to hot melt adhesive compositions which include an amine terminated polyalkylene oxide neutralized sulfonated thermoplastic polymer wherein the neutralized sulfonated thermoplastic polymer has about 5 to about 250 meq. of neutralized sulfonate groups per 100 grams of the neutralized sulfonated thermoplastic polymer, and about 25 to about 200 parts by weight of a hydrocarbon resin of a petroleum or coal tar distillate, having about 5 to 6 carbon atoms, the hydrocarbon resin being composed of aliphatic dienes and monoolefins per 100 parts by weight of the neutralized sulfonated thermoplastic resin.
    Type: Grant
    Filed: August 12, 1981
    Date of Patent: February 1, 1983
    Assignee: Exxon Research and Engineering Co.
    Inventors: Pawan K. Agarwal, Henry S. Makowski
  • Patent number: 4371652
    Abstract: This invention relates to unique and novel compositions based on chemically combining a sulfonated polymer and a tertiary amine terminated polylactone composition. The resulting amine neutralized sulfonated polymer compositions have a variety of uses including those as diverse as adhesive agents, thermoplastic elastomers, additive uses wherein these materials can be utilized to compatibilize two different polymers which are normally incompatible. These compositions can also be blended with fillers and/or oils when the sulfonated polymer is elastomeric. The materials display thermoplastic character.
    Type: Grant
    Filed: December 21, 1981
    Date of Patent: February 1, 1983
    Assignee: Exxon Research and Engineering Co.
    Inventor: Pawan K. Agarwal
  • Patent number: 4325854
    Abstract: Homogeneous, substantially single phase, stable solutions of the reaction product of asphalt, a vinyl aromatic monomer, and a rubbery polymer, in a toluene based solvent, are provided. These solutions may be sprayed onto metal surfaces to provide corrosion resistant coatings thereon and also coatings which have a sound dampening quality.
    Type: Grant
    Filed: April 1, 1981
    Date of Patent: April 20, 1982
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Michael G. Roberts, Joseph F. Tanner