Olefin Or Alpha, Beta-olefinically Unsaturated Carboxylate Is An Additional Monomer Of The Polymer (e.g., Fumarate-ethylene Or Fumarate-acrylate Copolymers, Etc.) Patents (Class 508/468)
  • Gel-free .alpha.-olefin dispersant additives useful in oleaginous compositions
    Patent number: 5578237
    Abstract: Gel-free dispersant additives for lubricating and fuel oil compositions comprise at least one adduct of (A) .alpha.-olefin homopolymer or interpolymer of 700 to 10,000 number average molecular weight, free radically grafted with an average of from about 0.
    Type: Grant
    Filed: November 10, 1994
    Date of Patent: November 26, 1996
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Jacob Emert, Robert D. Lundberg, David J. Lohse
  • Polymer composition and core-shell elastomer used therefor
    Patent number: 5574100
    Abstract: A polymer composition comprising [A] a polymer selected from a copolymer of .alpha.-olefin having at least 2 carbon atoms and a specific cyclic olefin, a ring-opening polymer of said specific cyclic olefin and a hydroganted, ring-opening polymer thereof and [B] a core-shell elastomer containing 40 to 85 parts of weight of a core component which comprises a styrene-butadiene copolymer and 15 to 60 parts by weight of a shell component which comprises a copolymer of an acrylate or methacrylate having a specific cyclic structure, a monovinyl aromatic monomer, other monovinyl monomer and a plyfunctional monomer. This polymer composition is excellent in transparency and impact resistance.
    Type: Grant
    Filed: March 9, 1995
    Date of Patent: November 12, 1996
    Assignees: Mitsui Petrochemical Industries, Ltd., Hoechst Aktiengesellschaft
    Inventors: Toshihiro Sagane, Masayuki Okabe, Masahiro Kishine