Oxygen Wax Dnrm Patents (Class 524/275)
With water nrm (Class 524/276)
Carnauba wax, beeswax, montan wax, or oxidized microcrystalline wax or modified forms thereof (Class 524/277)
  • Compositions of coated water-soluble polymers, their manufacture and their use to prepare aqueous solutions for use in enhanced oil recovery
    Patent number: 4396731
    Abstract: A solid composition of coated water-soluble polymer is made from 80 to 250 parts b.w. of solid particles of at least one water-soluble polymer coated with 100 parts b.w. of at least one paraffinic product solid at room temperature and whose melting point is preferably from 40.degree. to 90.degree. C. The solid composition is made by dispersing particles of the water-soluble polymer in the molten paraffinic product and then cooling down to room temperature.
    Type: Grant
    Filed: July 24, 1981
    Date of Patent: August 2, 1983
    Assignee: Institut Francais du Petrole
    Inventors: Francois Dawans, Daniel Binet, Norbert Kohler, Quang Dans Vu
  • Styrenic polymer foams and preparation thereof
    Patent number: 4386165
    Abstract: Extruded styrenic polymer foams having improved flammability characteristics are obtained when using volatile fluid blowing agents by incorporating therein a small amount (e.g., from about 0.03 to about 2 weight percent based on polymer) of a waxy material in conjunction with at least one conventional non-waxy halogenated flame retarding agent.
    Type: Grant
    Filed: September 28, 1981
    Date of Patent: May 31, 1983
    Assignee: The Dow Chemical Company
    Inventor: Kyung W. Suh
  • Microcapsule-containing wax composition
    Patent number: 4371634
    Abstract: A microcapsule-containing wax composition, which comprises (a) microcapsules of from 2 to 10 .mu.m diameter, (b) waxes and (c) dispersants, with or without pigments, fillers, volatile constituents and other agents conventionally present in wax compositions for the hot carbon process.The wall material of the microcapsules is a cross-linked urea-melamine condensate.The wax compositions may be applied over all or part of the surface of a base material, and give deeply colored copies with color-forming (CF) layers.
    Type: Grant
    Filed: November 16, 1981
    Date of Patent: February 1, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Dietrich Hoffman, Wolfgang Sliwka
  • Hot melt adhesive compositions comprising hydrogenated resin and ethylene-polar vinylic compound copolymer or wax
    Patent number: 4360622
    Abstract: A hot melt adhesive composition comprising (I) a hydrogenated resin having a softening point of 60.degree.-130.degree. C. obtained by the hydrogenation of a copolymer resin prepared by reacting (A) at least one five-membered cyclic compound such as cyclopentadiene with (B) at least one dimer or trimer of the five-membered cyclic compound, isoprene and piperylene in specified ratios by weight, and (II) an ethylene type copolymer and/or wax.
    Type: Grant
    Filed: March 13, 1981
    Date of Patent: November 23, 1982
    Assignee: Nippon Oil Co., Ltd.
    Inventors: Shozo Tsuchiya, Akio Oshima, Hideo Hayshi
  • Ball-point pen ink composition erasable by rubber eraser
    Patent number: 4357431
    Abstract: A ball-point pen ink composition comprising at least a polymeric substance selected form a group consisting of polyisobutylene and ethylene-propylene copolymer, a wax which is solid or semi-solid at room temperature, pigment particles and a low-boiling solvent having a boiling point lower than 200.degree. C. This ball-point pen ink produces writing traces which can easily be erased by an ordinary rubber eraser, especially, even after passage of several days after initial writing.
    Type: Grant
    Filed: June 24, 1981
    Date of Patent: November 2, 1982
    Assignee: Pentel Kabushiki Kaisha
    Inventors: Nobuyuki Murakami, Hiroshi Miyashita
  • Novel method for reducing the processing temperature of thermoplastic polymers and novel blowing agent concentrates produced thereby
    Patent number: 4343912
    Abstract: The present invention pertains to a method for reducing the processing temperature of a thermoplastic polymer comprising blending the thermoplastic polymer in powder form with an effective amount of a compound having a softening temperature of about 20.degree. to 200.degree. C. lower than the softening temperature of the thermoplastic polymer. The invention further pertains to novel chemical blowing agent concentrates.
    Type: Grant
    Filed: September 21, 1981
    Date of Patent: August 10, 1982
    Assignee: Mobay Chemical Corporation
    Inventor: In C. Lim
  • Processing modifier for high-density polyethylene
    Patent number: 4342848
    Abstract: The use of polyvinyloctadecyl ethers as a processing modifier in the extrusion of high-density polyethylene resins leads to a smoother surface of the extruded resin. Other beneficial effects include improved values of such important resin characteristics as tensile strength at break, percentage elongation at break, tearing resistance, and impact resistance.
    Type: Grant
    Filed: July 20, 1981
    Date of Patent: August 3, 1982
    Assignee: The Dow Chemical Company
    Inventors: Robert R. Blanchard, Tommy R. Bourne