Maleic anhydride grafts of olefin polymers
S The linear ethylene polymers (ULDPE, LLDPE, LMDPE and HDPE) used in making the grafts in the present invention are normally solid, high molecular weight polymers prepared using a coordination-type c... Read More
Inventors: Tabor, Ricky L.; Lancaster, Gerald M.; Jezic, Zdravko; Young, Gene P.; Biesser, John O.;, Assignee: The Dow Chemical Company (Midland, MI) |
Non-isothermal crystallizable adhesive compositions for multilayer laminated structures
OF THE INVENTION Thermoplastic resins, as noted above, form a known class of polymers as described in Modern Plastics Encyclopedia, Volume 65, Number 11. Essentially any member of this known class ca... Read More
Inventors: Tabor, Ricky L.; Lancaster, Gerald M.; Potts, Michael W.; Butler, Thomas I.;, Assignee: The Dow Chemical Company (Midland, MI) |
Laminated structure comprising 4-methylpentene-1 bonded to thermoplastic resin layer
We claim: 1. A laminate comprising (a) a layer of a 4-methyl-1-pentene polymer, (b) a layer of a polymer composition comprising (a) 40 to 98% by weight of an ethylene/alpha-olefin random copolymer con... Read More
Inventors: Shigemoto, Hiromi;, Assignee: Mitsui Petrochemical Industries, Ltd. (Tokyo, JP) |
Method of producing olefin polymer graft copolymers
The method of this invention embodies a combination of steps which together permit olefin polymer graft copolymers to be obtained not only in high conversions (monomer consumption) but also with a hi... Read More
Inventors: DeNicola, Jr., Anthony J.; Guhaniyogi, Suhas;, Assignee: Himont Incorporated (Wilmington, DE) |
Elastomers having reduced hysteresis prepared with vinyl imidazole
OF THE INVENTION The term "living polymer" as employed throughout the specification and claims refers to polymers which are prepared by anionic polymerization of a diene monomer or mixture of a diene... Read More
Inventors: Hergenrother, William L.; Morrow, Martin E.;, Assignee: Bridgestone/Firestone, Inc. (Akron, OH) |
Articles resistant to attack by fatty substances, made from polystyrene blends, and compositions
What we claim is: 1. An article resistant to attack by fatty substances, produced by extrusion or injection molding from a composition consisting essentially of (A) 60 to 93 parts by weight, per 100 p... Read More
Inventors: Holden, Geoffrey; Gouw, Lam H.;, Assignee: Shell Oil Company (Houston, TX) |
Thermoplastic polyester resin composition which is quickly crystallizable
OF THE PREFERRED EMBODIMENTS Various crystallization accelerators for quickly crystallizing a thermoplastic polyester at high crystallization velocity have been studied to find the fact that certain ... Read More
Inventors: Hayashi, Masahiro; Yoshimura, Tamotsu; Mukai, Seiichi; Shikama, Masaharu; Kusumoto, Hideto; Yamanouchi, Hideki;, Assignee: Mitsubishi Chemical Industries Ltd. (Tokyo, JP) |
Molding compositions based on poly(1,4-cyclohexylene dimethylene terephthalate) containing an amide crystallization aid
I claim: 1. A reinforced polyester molding composition having an improved crystallization rate comprising (a) poly (1,4-cyclohexylene dimethylene terephthalate) having an inherent viscosity of about 0... Read More
Inventors: Minnick, Larry A.;, Assignee: Eastman Kodak Company (Rochester, NY) |
Molding compositions based on polyester
We claim: 1. Molding compositions based on linear saturated polyester having high crystallization rate and suitable for being molded at a temperature of the mold not higher than 100.degree. C. to manu... Read More
Inventors: Riccardi, Nunzio; De Mattia, Nicola; Mariano, Armando; Ciaperoni, Aldemaro;, Assignee: ECP Enichem Polimeri S.r.l. (Milan, IT) |
Nucleating agents for poly(ethylene terephthalate)
Accordingly, one object of the present invention is to provide a nucleating agent which is effective in creating nucleation sites for crystallization of PET. Another object of the invention is to prov... Read More
Inventors: Sperling, Leslie H.; Barrett, Leonard W.;, Assignee: Istituto Guido Donegani S.p.A. (Novara, IT); Enichem S.p.A. (Milan, IT) |
Polyester resin composition
OF THE INVENTION Examples of the aromatic dicarboxylic acids as a raw material of the present polyester resin include terephthalic acid, isophthalic acid, naphthalene dicarboxylic acids such as 2,6-n... Read More
Inventors: Takashima, Masahiko; Yamamoto, Koji; Shimazaki, Hisashi;, Assignee: Mitsubishi Gas Chemical Company, Inc. (Tokyo, JP) |
Process for curing foundry cores and molds
OF A PREFERRED EMBODIMENT As is well known to those skilled in the art, the chemical and physical properties of organic peroxides and hydroperoxides range so far and wide that the behavior of specifi... Read More
Inventors: Hutchings, David A.;, Assignee: Consolidated Foundries and Mfg. Corp. (Chicago, IL) |
Co-extruded laminate consisting of at least one sheet of polypropylene and at least one sheet of polymeric material based on high-impact polystyrene
What is claimed is: 1. A thermoplastic laminate, suitable for thermo-forming, of a composite structure consisting of at least one sheet of crystalline polypropylene and of at least one sheet of polyme... Read More
Inventors: Castelein, Jean;, Assignee: Montefina S.A. (BE) |
Polyvinyl chloride plastisols
What is claimed is: 1. A plastisol comprising a polymer of vinyl chloride, a plasticizer therefor, a filler, and from 0.5 to 5 percent, by weight of said plastisol, of an adhesion promoter which is an... Read More
Inventors: Burba, Christian; Goeke, Ulrich; Esper, Norbert;, Assignee: Schering AG (Berlin and Bergkamen, DE) |
Process for producing styrene-based polymer
What is claimed is: 1. A process for producing a styrene polymer which comprises contacting a styrene monomer with alkylaluminoxane, adding a transition metal compound to the resulting mixture and the... Read More
Inventors: Takeuchi, Mizutomo; Kuramoto, Masahiko;, Assignee: Idemitsu Kosan Co., Ltd. (Tokyo, JP) |
Catalyst system of enhanced productivity
We claim: 1. A catalyst system comprising (a) a reaction product of (i) a bis(cyclopentadienyl) Group IV B metal compound; and (ii) a activator compound comprising (1) a cation, which will irreversibl... Read More
Inventors: Hlatky, Gregory G.; Turner, Howard W.;, Assignee: Exxon Chemical Patents Inc. (Linden, NJ) |
Peroxide emulsions containing an antifreezing compound
What is claimed is: 1. A process for using an aqueous emulsion of a polymerization initiator, which aqueous emulsion comprises: (a) 20-60% by weight of an organic peroxide polymerization initiator whi... Read More
Inventors: Torenbeek, Reinder; Verhelst, Willem F.;, Assignee: Akzo N.V. (NL) |
Polymer bound nonionic surfactants as cure activators
We claim: 1. A vulcanizable rubber composition comprising rubber, a vulcanizing agent and a polymeric cure activator, wherein said polymeric cure activator is prepared in a free radical emulsion polym... Read More
Inventors: D'Sidocky, Richard M.; Cottman, Kirkwood S.; Geiser, Joseph F.; Sandstrom, Paul H.; Smith, Robert A.;, Assignee: The Goodyear Tire & Rubber Company (Akron, OH) |
Mevalonolactone derivatives
What is claimed is: 1. A compound having the general formula ##STR12## wherein A represents a, methylene, ethylene, or trimethylene group; R.sup.1 represents a hydrogen atom, an aliphatic acyl group c... Read More
Inventors: Mitsui, Seiji; Ogiso, Akira; Indo, Akira;, Assignee: Sankyo Company Limited (Tokyo, JP) |
Mevalonolactone derivatives and process for the preparation thereof
What is claimed is: 1. A compound having the formula ##STR12## wherein A represents a vinylene group; R.sup.1 represents a hydrogen atom, an aliphatic acyl group containing from 2 to 8 carbon atoms, b... Read More
Inventors: Mistui, Seiji; Ogiso, Akira; Indo, Akira;, Assignee: Sankyo Company Limited (Tokyo, JP) |
Treating fungal infections with substituted-(6-(tetrahydro-4-hydroxy-2-oxo-2H-pyran-2-yl)ethyl)- or ethenyl)pyrazoles
Compounds for use in the method of this invention possess structural Formula 1: ##STR3## where the dashed lines represent single or double bonds. The dashed lines in the pyrazole group are meant to i... Read More
Inventors: Heifetz, Carl L.; Hoefle, Milton L.; Roth, Bruce D.; Sliskovic, Drago R.; Wilson, Michael W.;, Assignee: Warner-Lambert Company (Morris Plains, NJ) |
Process for preparing "living" polymers using tetracoordinate organosilicon, organotin or organogermanium polymerization initiator with bifluoride ion source co-catalyst
What is claimed is: 1. Process of preparing a "living" polymer, the process comprising contacting under polymerizing conditions at least one polar acrylic or maleimide monomer with (i) a tetracoordina... Read More
Inventors: Farnham, William B.; Sogah, Dotsevi Y.;, Assignee: E. I. Du Pont de Nemours and Company (Wilmington, DE) |
Polymer life enhancement in oxyanion-catalyzed polymerization
We claim: 1. Process of preparing a "living" polymer comprising contacting under polymerization conditions at least one polar acrylic-type alpha olefinic monomer with (i) a tetracoordinate organosilic... Read More
Inventors: Dicker, Ira B.; Hutchins, Clyde S.; Spinelli, Harry J.;, Assignee: E. I. Du Pont de Nemours and Company (Wilmington, DE) |
Initiator and method for polymerizing ethylene and preparing block copolymers containing ethylene
OF THE INVENTION The initiator may be employed for the homopolymerization of ethylene and for the formation of block copolymers of ethylene and other anionically polymerizable monomers. Specific exam... Read More
Inventors: Delaney, Mark S.; Marshall, William B.; Brewbaker, James L.;, Assignee: The Dow Chemical Company (Midland, MI) |
Graft copolymers and blends thereof with polyolefins
In the following, LDPE is low-density polyethylene, usually branched, of density of about 0.91 to about 0.94 g/cc; HDPE is high-density polyethylene of a density above about 0.95 g/cc; LLPDE is linea... Read More
Inventors: Ilenda, Casmir S.; Bortnick, Newman; Graham, Roger K.; Work, William J.;, Assignee: Rohm and Haas Company (Philadelphia, PA) |
Aqueous dielectric coatings based on copolymers of high acid content
What is claimed is: 1. Conductive paper coated with a dielectric coating composition comprising, a pigmented aqueous dispersion of a carboxyl-functional copolymer of copolymerized monoethylenically un... Read More
Inventors: Kriz, Karel; Minnis, Ralph L;, Assignee: DeSoto, Inc. (Des Plaines, IL) |
Silicone elastomers and adhesion promoter therefor
That which is claimed is: 1. A composition comprising the product obtained by mixing (A) a silanol-terminated polydiorganosiloxane, (B) a crosslinking agent for (A) which is a silicon compound having ... Read More
Inventors: Joseph, Edward A.; Trego, Brian R.;, Assignee: Dow Corning, Ltd. (Barry, GB7); Dow Corning, S.A. (Seneffe, BE) |
Adhesion of silicone sealant
That which is claimed is: 1. A composition consisting essentially of a product obtained by mixing (A) 100 parts by weight of a hydroxyl or alkoxy endblocked polydiorganosiloxane having viscosity of be... Read More
Inventors: Dietlein, John E.; Klosowski, Jerome M.;, Assignee: Dow Corning Corporation (Midland, MI) |
1-(Norborn-5'-en-2'-yl) or 1-(norborn-2'-yl) substituted 1-alken-3-ols and alkan-3-ols
The embodiments of this invention in which an exclusive property or privilege is claimed are defined as follows: 1. A compound characterized by the formulae ##STR13## wherein R.sup.1 represents hydrog... Read More
Inventors: Schleppnik, Alfred A.;, Assignee: Monsanto Company (St. Louis, MO) |
Coatings prepared from trialkoxysilanes
We claim: 1. A binder for chemically resistant coatings, wherein the major portion of the binder is prepared by reacting in the presence of an aqueous acidic solution (i) trialkoxysilanes having the f... Read More
Inventors: Law, Gabriel H.; Gysegem, Albert Peter;, Assignee: Ameron, Inc. (Monterey Park, CA) |
Adhesives and Rubbers 
