Patents Examined by William F. Hamrock
  • Patent number: 4321337
    Abstract: Ionic hydrocarbon polymers having improved adhesion to nylon are provided comprising copolymers of .alpha.-olefins and alpha,beta-ethylenically unsaturated monocarboxylic acids and optionally other monoethylenically unsaturated monomers wherein from about 10 to 90 percent of the carboxylic acid groups are ionized by neutralization with zinc ions uniformly distributed throughout the copolymer such that the resultant ionic copolymer has a zinc salt content of from about 0.0115 to about 0.0229 mols per 100 grams of ionic copolymer. Such ionic copolymers are particularly suitable to be coextruded with nylon as a result of their improved adhesion thereto.
    Type: Grant
    Filed: January 11, 1980
    Date of Patent: March 23, 1982
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Malcolm S. Smith
  • Patent number: 4321339
    Abstract: Fluorinated phenolic polymer, process for its preparation, and use thereof, particularly in the form of a film as a membrane in an electrolytic cell, said polymer consisting essentially of recurring units of(1) --CF.sub.2 CFX--wherein X in each of the recurring units is independently selected from F, Cl, R and OR wherein R is perfluoroalkyl of 1 to 4 carbon atoms and ##STR1## wherein Y is Cl, R or OR wherein R is perfluoroalkyl of 1 to 4 carbon atoms; M is H, alkali metal or NR'.sub.4 wherein R' in each of the recurring units is independently selected from H and alkyl of 1 to 6 carbon atoms; x is an average value within the range about 0.2 to about 1.0; n is 1, 2 or 3; and p is 0 or 1,said polymer having 0 to about 21 units of (1) per unit of (2).
    Type: Grant
    Filed: March 18, 1981
    Date of Patent: March 23, 1982
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Burton C. Anderson, Ronald E. Uschold
  • Patent number: 4321338
    Abstract: This invention relates to a chlorinated polymer and a coating composition employing the same which is characterized by being comprized of chlorinated polymethylpentene obtained by uniformly chlorinating an isotactic poly-4-methylpentene-1 having the melt index of 8-70 g/10 min. at 260.degree. C. and 5 kg, (ASTM D 1238-65T) in a solution thereof, to not less than 50 weight % of chlorine content.
    Type: Grant
    Filed: November 21, 1980
    Date of Patent: March 23, 1982
    Assignee: Sanyo-Kokusaku Pulp Co., Ltd.
    Inventors: Kazuo Shimizu, Toru Morita
  • Patent number: 4320205
    Abstract: A fluorinated copolymer having ion-exchange group is produced by copolymerizing a fluorinated ethylenic unsaturated monomer and a functional monomer having a functional group of carboxylic acid group or a group which can be converted to carboxylic acid group in an aqueous medium in the presence of a polymerization initiator source and in the presence of a specific molecular weight regulator. The specific molecular weight regulator is selected from the group consisting of aliphatic alkanes alicyclic alkanes and water soluble organic solvents and controls the molecular weight without lowering the copolymerization velocity and without lowering the stability of the aqueous latex.
    Type: Grant
    Filed: September 2, 1980
    Date of Patent: March 16, 1982
    Assignee: Asahi Glass Company, Ltd.
    Inventors: Tatsuro Asawa, Haruhisa Miyake, Masami Yamashita
  • Patent number: 4317887
    Abstract: Novel polyfunctional compounds and polymers are disclosed of the general formula ##STR1## wherein Q designates -X' or -X-.epsilon.-R; where X' designates ##STR2## where .alpha. is --OH, or --SH;.beta. is --OH, --SH, --NH.sub.2, --NO.sub.2, --CO--R.sub.2, --R.sub.2 C.dbd.N--OH, --COOH, -hal, alkyl, aryl, or aralkyl; halogen being chlorine or bromine;.gamma. is a non-interfering substituent;where .beta. and .gamma. may form together a hydrocarbyl ring system;where .delta. is --(CH.sub.2).sub.n -- or --SO.sub.2 --;where X is --O--, --S--, --NH--, --N.sup.+ R.sub.2 R.sub.3 Cl.sup.- or --P--;where.epsilon. is --(CH.sub.2).sub.n --, --SO.sub.2 --, --NH-- or --CH.sub.2 (O-CH.sub.2 --CH.sub.2).sub.n --; ##STR3## wherein the upwardly directed bonds are connected to the R polymer molecule and the downwardly directed bonds are connected to .delta. groups;n is an integer of from 1 to 15 or zero;R is a polymeric backbone, alkyl or aralkyl; andR.sub.2, R.sub.3 and R.sub.
    Type: Grant
    Filed: August 10, 1979
    Date of Patent: March 2, 1982
    Assignee: Yeda Research and Development Co. Ltd.
    Inventors: Abraham Warshawsky, Rami Kalir, Abraham Patchornik
  • Patent number: 4316978
    Abstract: Aluminum cyclopentadienyl compounds can be used to synthesize a variety of organic molecules containing the cyclopentadiene group, e.g., substituted cyclopentadiene compounds, polymer molecules with cyclopentadiene pendant groups, and polymer molecules with cyclopentadiene terminal groups.
    Type: Grant
    Filed: August 25, 1980
    Date of Patent: February 23, 1982
    Inventors: Joseph P. Kennedy, Kenneth F. Castner
  • Patent number: 4316973
    Abstract: Novel telechelic olefin and hydroxy polymers particularly those of polyisobutylene are prepared according to the process set forth herein. Preparation of a telechelic diolefin polyisobutylene includes the steps of refluxing a solution of telechelic dihalogen polyisobutylene, adding a solution of a strong base such as potassium t-butoxide and stirring to form the telechelic diolefin polyisobutylene. This telechelic diolefin can be converted to the telechelic dihydroxy by refluxing a solution of the former, hydroborating the diolefin to a polymeric borane and oxidizing the polymeric borane to form the telechelic dihydroxy polyisobutylene. The processes are also applicable to the conversion of trihalogenated polyisobutylenes to telechelic triolefin and trihydroxy polyisobutylene tristars.
    Type: Grant
    Filed: September 10, 1979
    Date of Patent: February 23, 1982
    Assignee: The University of Akron
    Inventor: Joseph P. Kennedy
  • Patent number: 4315995
    Abstract: A process for preparing a cation-exchange resin is disclosed. The process comprises:(a) treating a chlorine-containing material, which is the distillation residue obtained by chlorinating or oxychlorinating a C.sub.2 -C.sub.40 hydrocarbon, with a sulfonating agent,(b) treating the admixture of step (a) with water and an organic solvent until the product shows a substantially neutral pH, and(c) removing the volatile materials to obtain a solid material which is suitable for use as a cation-exchange resin.
    Type: Grant
    Filed: August 22, 1980
    Date of Patent: February 16, 1982
    Assignee: Conoco Inc.
    Inventor: Charles M. Starks
  • Patent number: 4315083
    Abstract: The present invention relates to an improved process for the continuous mass polymerization of solutions comprising alkenyl aromatic monomers having about 1 to 10% by weight of a polybutadiene rubber dissolved therein, the steps comprising, (A) continuously charging said solution to a first reaction zone operating at about 10 to 40% conversion forming a first partially polymerized mixture, (B) continuously charging said first mixture to a second reaction zone operating at about 50-90% conversion forming a second partially polymerized mixture, and finally, (C) separating the residual monomer from said second mixture providing a polyblend of a matrix phase of said monomers having polybutadiene rubber particles grafted with said monomers dispersed therein, the improvement comprising: charging a monomer-polybutadiene solution in step (A) having in addition about 1 to 10% by weight of a diene block copolymer and about 1 to 20% by weight of a polymer of said monomers dissolved in said solution followed by carrying
    Type: Grant
    Filed: May 15, 1980
    Date of Patent: February 9, 1982
    Assignee: Monsanto Company
    Inventor: Raymond D. Burk
  • Patent number: 4314925
    Abstract: A heat-curable composition is disclosed comprising a hydroxyl-bearing polymer; a liquid, polyglycol hemi-formal diluent; and an aminoplast or phenolic resin capable of curing the hydroxyl-bearing polymer. Optionally, a pigment may be added to the composition.
    Type: Grant
    Filed: February 26, 1981
    Date of Patent: February 9, 1982
    Assignee: The Dow Chemical Company
    Inventors: Sandra Berazosky, Harry A. Smith
  • Patent number: 4315085
    Abstract: Aqueous dispersions of soft polymers, and particularly butadiene-styrene copolymers, containing high amounts of carboxylic acid units are prepared by a core-shell polymerization technique in which there is first polymerized around the soft polymer an inner shell layer of methylmethacrylate, thereby completely encasing the soft polymer particles. Then an outer layer of methylmethacrylate and methacrylic acid monomers is polymerized around the encased particles. The product contains up to about 40 mole percent of methacrylic acid units in the shell.
    Type: Grant
    Filed: July 25, 1980
    Date of Patent: February 9, 1982
    Assignee: GAF Corporation
    Inventors: Yehuda Ozari, Eugene S. Barabas
  • Patent number: 4313866
    Abstract: In production of solid films (e.g. a floor covering wear layer) from vinyl chloride polymer plastisols, good physical properties of the plastisols and films are provided by use of a plasticizer containing 50-90% prime ester at least about 40 parts per hundred parts by weight of which is aromatic diester selected from alkyl benzyl succinates, glutarates and mixtures thereof, up to 20% hydrocarbon boiling at 200.degree.-325.degree. C. and 10-50% non-aromatic diester having a molecular weight of 230-300. Using such a plasticizer, the plastisols and films can be conveniently plasticized with relatively small amounts of prime ester, and the films containing such small amounts of prime ester have unusually high stain resistance.
    Type: Grant
    Filed: May 19, 1980
    Date of Patent: February 2, 1982
    Assignee: Monsanto Company
    Inventor: James T. Renshaw
  • Patent number: 4312956
    Abstract: Flocs prepared by mixing cationic and anionic emulsion ion exchange resins are useful as a filtration and deionization medium. Flocs prepared from weakly acidic and weakly basic emulsion ion exchange resins may be regenerated thermally.
    Type: Grant
    Filed: June 18, 1979
    Date of Patent: January 26, 1982
    Assignee: Rohm and Haas Company
    Inventors: Berni P. Chong, Eric G. Isacoff, James W. Neely
  • Patent number: 4311818
    Abstract: New organo-lithium initiators, their synthesis, and their use. The initiators have the formula: ##STR1## in which R" is either a hydrogen atom or a methyl radical; either n is 1, in which case R'=H and m and p are integers, the sum of which is between 0 and 10 inclusive, or n is 2, R' then being an alkyl radical of 2 to 8 carbon atoms and m=p=o; and R is an alkyl radical of 1 to 4 carbon atoms.The initiators are prepared by reacting compounds of the formula; ##STR2## with an alkyl-lithium RLi in a non-polar solvent in the absence of any polar solvent or complexing agent.The initiators are used to prepare polydienes of high stereoregularity by reacting with a diene, and the polydiene is used to prepare a three-block or star copolymer by reacting with an anionically polymerizable monomer.
    Type: Grant
    Filed: July 3, 1980
    Date of Patent: January 19, 1982
    Assignees: Societe Chimique des Charbonnages-Cdf. Chimie, Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Pierre Sigwalt, Patrick Guyot, Michel Fontanille
  • Patent number: 4311812
    Abstract: This invention relates to novel metal catalysts of a solid nonionic crosslinked resin having amine or phosphine borane adducts on or in which a reduced metal is precipitated, the method of producing said catalysts and their use in catalysis.
    Type: Grant
    Filed: November 26, 1980
    Date of Patent: January 19, 1982
    Assignee: Rohm and Haas Company
    Inventor: Larry Manziek
  • Patent number: 4311811
    Abstract: This invention relates to novel metal catalysts of a solid nonionic crosslinked resin having amine or phosphine borane adducts on or in which a reduced metal is precipitated, the method of producing said catalysts and their use in catalysis.
    Type: Grant
    Filed: November 26, 1980
    Date of Patent: January 19, 1982
    Assignee: Rohm and Haas Company
    Inventor: Larry Manziek
  • Patent number: 4311799
    Abstract: A basic copolymer whose main chain is cross-linked which comprises about 6 to about 98% by weight of recurring units of Formula (A) or (B), ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3, which may be the same or different, each represents a hydrogen atom or a hydrocarbon group selected from the group consisting of C.sub.1-20 alkyl groups, C.sub.3-10 cycloalkyl groups, C.sub.3-8 alkenyl groups, C.sub.6-15 aryl groups, C.sub.7-12 arylalkyl groups and C.sub.1-15 aminoalkyl groups; and X is an acid radical, and about 2 to about 94% by weight of cross-linked units based on the total weight of the recurring units of Formula (A) or (B) and the cross-linked units and, if desired, up to about 92% by weight of units of a monoethylenically unsaturated monomer or a conjugated monomer based on the total weight of the recurring units of Formula (A) or (B), the cross-linked units and the units of the monoethylenically unsaturated monomer or the conjugated monomer.
    Type: Grant
    Filed: July 2, 1979
    Date of Patent: January 19, 1982
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Tetsuya Miyake, Kunihiko Takeda, Akihiko Ikeda
  • Patent number: 4311803
    Abstract: A continuous solution polymerization process for polymerizing conjugated dienes alone or with a copolymerizable monovinylarene in the presence of a gel inhibitor employing a first stirred reactor in series with a following plug-flow tube reactor.
    Type: Grant
    Filed: August 26, 1980
    Date of Patent: January 19, 1982
    Assignee: Phillips Petroleum Company
    Inventors: Richard L. Smith, Ralph C. Farrar, Richard J. Sonnenfeld
  • Patent number: 4311819
    Abstract: Butadiene is partially polymerized anionically in the presence of styrene to form a styrene-butadiene rubber of low styrene content. The resultant living polymer is terminated, butadiene removed, and optionally the styrene polymerized with or without additional styrene to form impact resistant styrene polymer.
    Type: Grant
    Filed: November 19, 1980
    Date of Patent: January 19, 1982
    Assignee: The Dow Chemical Company
    Inventors: Lu H. Tung, Larry L. Kirkby, Charles E. Lyons
  • Patent number: 4310631
    Abstract: The reaction of glycidyl methacrylate (GMA) with an ionogenic methacrylate ester containing amine groups of the tertiary type such as dimethylaminoethyl methacrylate (DMAEMA) in the presence of an acidic water solution produces a new and novel water soluble, ionic, cross-linking, methacrylate bifunctional monomer wnhich is useful in the manufacture of anion exchange polymers while employing an aqueous solvent system.
    Type: Grant
    Filed: December 13, 1980
    Date of Patent: January 12, 1982
    Assignee: Ionics Inc.
    Inventor: Russell J. MacDonald