Patents by Inventor Richard L. Frentzel

Richard L. Frentzel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6372826
    Abstract: A curable composition useful for repairing worn surfaces on housings comprising an admixture of: (1) a mixture of (a) an one-component epoxy resin, (b) solvent and (c) reactive diluent, wherein said epoxy resin is present in a major amount in said mixture; (2) graphite powder; and (3) polytetrafluoroethylene powder.
    Type: Grant
    Filed: December 6, 1995
    Date of Patent: April 16, 2002
    Assignee: Turbine Controls, Inc.
    Inventors: Glen R. Greenberg, Robert M. Richardello, Richard L. Frentzel
  • Patent number: 5395876
    Abstract: A surface mount conductive adhesive composition comprising:(a) about 2 to about 15 parts by weight of a binder resin selected from the group consisting of acrylated urethane resin, acrylic resin, and mixtures thereof;(b) about 2 to about 15 parts by weight of an acrylate monomer;(c) about 0.01 to about 3 parts by weight of a free radical initiator; and(d) about 72 to about 95 parts by weight of finely divided silver particles.
    Type: Grant
    Filed: April 19, 1993
    Date of Patent: March 7, 1995
    Assignee: Acheson Industries, Inc.
    Inventors: Richard L. Frentzel, Scott Allen
  • Patent number: 5200264
    Abstract: A thermally curable conductive polymer thick film composition comprising an uncured admixture of:(a) a resin system comprising an admixture of:(i) about 4.50 parts to about 12 parts by weight of at least one phenoxy resin; and(ii) about 6 parts to about 15.5 parts by weight of at least one blocked polyisocyanate resin; and(b) a particulated electrically conductive material selected from the group consisting of:(i) about 50 parts to about 70 parts by weight silver flake; and(ii) a mixture of about 15 parts to about 25 parts by weight graphite and about 3 parts to about 6 parts by weight carbon black.
    Type: Grant
    Filed: June 17, 1991
    Date of Patent: April 6, 1993
    Assignee: Advanced Products, Inc.
    Inventor: Richard L. Frentzel
  • Patent number: 5141777
    Abstract: A thermally curable conductive polymer thick film composition comprising, by weight:(a) about 3-15 parts of at least one thermoplastic vinyl acetate/vinyl chloride/dicarboxylic acid multipolymer resin;(b) a second thermoplastic resin selected from the group consisting of:(i) about 1-6 parts of at least one thermoplastic polyurethane resin;(ii) about 2-10 parts of at least one thermoplastic polyester resin; or(iii) about 1-10 parts of a mixture of at least one thermoplastic polyurethane and at least one thermoplastic polyester resin;(c) about 0.05-1 parts of a tertiary amine;(d) an effective amount of at least one organic solvent capable of substantially dissolving (a), (b), and (c) ingredients; and(e) about 50-80 parts of silver flake.
    Type: Grant
    Filed: September 30, 1991
    Date of Patent: August 25, 1992
    Assignee: Advanced Products, Inc.
    Inventors: Richard L. Frentzel, Andrew Chen
  • Patent number: 5139819
    Abstract: A thermally curable polymer thick film compositions comprising, by weight:(a) about 3-15 parts of at least one poly(hydroxystyrene) resin;(b) a crosslinking resin selected from the group consisting of:(i) about 5-25 parts of at least one blocked isocyanate resin; or(ii) about 2-10 parts of at least one melamine-formaldehyde resin;(c) an effective amount of at least one organic solvent capable of substantially dissolving (a) and (b) ingredients;(d) conductive particulate matter selected from the group consisting of:(i) about 50-80 parts silver flake;(ii) a graphite/carbon black mixture consisting of:(aa) about 15-45 parts graphite; and(bb) about 1-10 parts carbon black; or(iii) a mixture of (i) and (ii).
    Type: Grant
    Filed: July 29, 1991
    Date of Patent: August 18, 1992
    Assignee: Advanced Products, Inc.
    Inventors: Richard L. Frentzel, Warren R. Oakdale
  • Patent number: 5114796
    Abstract: A thermally curable polymer thick film compositions comprising, by weight:(a) about 3--15 parts of at least one poly(hydroxystyrene) resin;(b) a crosslinking resin selected from the group consisting of:(i) about 5-25 parts of at least one blocked isocyanate resin; or(ii) about 2-10 parts of at least one melamineformaldehyde resin;(c) an effective amount of at least one organic solvent capable of substantially dissolving (a) and (b) ingredients;(d) conductive particulate matter selected from the group consisting of:(i) about 50-80 parts silver flake;(ii) a graphite/carbon black mixture consisting of:(aa) about 15-45 parts graphite; and(bb) about 1-10 parts carbon black; or(iii) a mixture of (i) and (ii).
    Type: Grant
    Filed: July 29, 1991
    Date of Patent: May 19, 1992
    Assignee: Advanced Products Inc.
    Inventors: Richard L. Frentzel, Warren R. Oakdale
  • Patent number: 5112687
    Abstract: A thermally curable conductive polymer thick film composition comprising, by weight:(a) about 3-15 parts of at least one thermoplastic vinyl acetate/vinyl chloride/dicarboxylic acid multipolymer resin;(b) a second thermoplastic resin selected from the group consisting of:(i) about 1-6 parts of at least one thermoplastic polyurethane resin;(ii) about 2-10 parts of at least one thermoplastic polyurethane resin;(iii) about 1-10 parts of a mixture of at least one thermoplastic polyurethane and at least one thermoplastic polyester resin;(c) about 0.05-1 parts of a tertiary amine;(d) an effective amount of at least one organic solvent capable of substantially dissolving (a), (b), and (c) ingredients; and(e) about 50-80 parts of silver flake.
    Type: Grant
    Filed: September 30, 1991
    Date of Patent: May 12, 1992
    Assignee: Advanced Products Inc.
    Inventors: Richard L. Frentzel, Andrew Chen
  • Patent number: 5089173
    Abstract: A thermally curable conductive polymer thick film composition comprising, by weight:(a) about 3-15 parts of at least one thermoplastic vinyl acetate/vinyl chloride/dicarboxylic acid multipolymer resin;(b) a second thermoplastic resin selected from the group consisting of:(i) about 1-6 parts of at least one thermoplastic polyurethane resin;(ii) about 2-10 parts of at least one thermoplastic polyester resin; or(iii) about 1-10 parts of a mixture of at least one thermoplastic polyurethane and at least one thermoplastic polyester resin;(c) about 0.05-1 parts of a tertiary amine;(d) an effective amount of at least one organic solvent capable of substantially dissolving (a), (b), and (c) ingredients; and(e) about 50-80 parts of silver flake.
    Type: Grant
    Filed: May 2, 1990
    Date of Patent: February 18, 1992
    Assignee: Advanced Products Inc.
    Inventors: Richard L. Frentzel, Andrew Chen
  • Patent number: 5057245
    Abstract: A thermally curable polymer thick film compositions comprising, by weight:(a) about 3-15 parts of at least one poly(hydroxystyrene) resin;(b) a crosslinking resin selected from the group consisting of:(i) about 5-25 parts of at least one blocked isocyanate resin; or(ii) about 2-10 parts of at least one melamineformaldehyde resin;(c) an effective amount of at least one organic solvent capable of substantially dissolving (a) and (b) ingredients;(d) conductive particulate matter selected from the group consisting of:(i) about 50-80 parts silver flake;(ii) a graphite/carbon black mixture consisting of:(aa) about 15-45 parts graphite; and(bb) about 1-10 parts carbon black; or(iii) a mixture of (i) and (ii).
    Type: Grant
    Filed: April 17, 1990
    Date of Patent: October 15, 1991
    Assignee: Advanced Products, Inc.
    Inventors: Richard L. Frentzel, Warren R. Oakdale
  • Patent number: 5049313
    Abstract: A thermally curable conductive polymer thick film composition comprising an uncured admixture of:(a) a resin system comprising an admixture of:(i) about 4.50 parts to about 12 parts by weight of at least one phenoxy resin; and(ii) about 6 parts to about 15.5 parts by weight of at least one blocked polyisocyanate resin; and(b) a particulated electrically conductive material selected from the group consisting of:(i) about 50 parts to about 70 parts by weight silver flake; and(ii) a mixture of about 15 parts to about 25 parts by weight graphite and about 3 parts to about 6 parts by weight carbon black.
    Type: Grant
    Filed: September 5, 1989
    Date of Patent: September 17, 1991
    Assignee: Advanced Products Inc.
    Inventor: Richard L. Frentzel
  • Patent number: 5043102
    Abstract: A conductive die attach composition containing no solvent and substantially no ionic impurities which comprises:(a) an epoxy resin system comprising (i) at least one low viscosity epoxy resin; and (ii) at least one epoxy resin hardener;(b) at least one unsaturated monomer which, when polymerized, is not capable of reacting with said epoxy resin system;(c) at least one free radical initiator for polymericing said unsaturated monomer; and(d) finely divided silver particles.
    Type: Grant
    Filed: November 29, 1989
    Date of Patent: August 27, 1991
    Assignee: Advanced Products, Inc.
    Inventors: Andrew Chen, Richard L. Frentzel
  • Patent number: 4959178
    Abstract: An actinic radiation curable polymer thick film composition comprising by weight:(a) about 10 to about 20 parts of an unsaturated monomer capable of being polymerized by actinic radiation;(b) about 2.5 to about 8 parts of at least one thermoplastic polymer having a glass transition value of above about 100.degree. F. and not capable of being substantially cross-linked with monomer (a) and said polymer (b) is dissolved in monomer (a);(c) about 68 to about 85 parts of conductive metal particles; and(d) about 0.1 to about 5 parts of at least one actinic radiation polymerization initiator.
    Type: Grant
    Filed: January 27, 1987
    Date of Patent: September 25, 1990
    Assignee: Advanced Products Inc.
    Inventors: Richard L. Frentzel, Noel C. Peralta
  • Patent number: 4729850
    Abstract: Polyoxyalkylene surfactants for cellular foams can be prepared by reacting a polyoxyalkylene adduct and an esterified unsaturated dibasic acid in the presence of a free-radical initiator.
    Type: Grant
    Filed: September 30, 1985
    Date of Patent: March 8, 1988
    Assignee: The Celotex Corporation
    Inventor: Richard L. Frentzel
  • Patent number: 4595458
    Abstract: Disclosed is a process for treating a cellulosic material selected from the group consisting of cellulose, regenerated cellulose, and mixtures thereof, comprising the steps of:contacting the cellulosic material with a dispersion comprising an effective sizing or waterproofing amount of a fatty acid adduct of a 1,2,4-triazole having the formula: ##STR1## wherein R is an alkyl or alkenyl group having about 11 to about 21 carbon atoms and wherein R.sub.1 and R.sub.2 are individually selected from hydrogen or a lower alkyl group having 1 to 4 carbon atoms.
    Type: Grant
    Filed: May 17, 1985
    Date of Patent: June 17, 1986
    Assignee: Olin Corporation
    Inventors: Richard L. Frentzel, Michael L. Rosin
  • Patent number: 4590255
    Abstract: A process for making metal salt (ionomers) of carboxylic acid-containing mono- and polyether polyol addition products by (1) reacting maleic acid, fumaric acid, itaconic acid, or mixtures thereof with at least one polyhydroxy-containing mono- or polyether compound (e.g. a polyether diol or triol) in the presence of a peroxy-type free radical initiator to form a carboxylic acid group-containing addition product and (2) neutralizing said addition product with a sufficient amount of metal ions selected from the group consisting of metals from Groups 1a, 2a, 8, 1b and 2b of the Periodic Table to convert at least about 10% of the carboxylic acid groups to ionomeric salt groups. These ionomers may be then changed into useful polyurethane elastomers by reaction with organic polyisocyanates.
    Type: Grant
    Filed: January 30, 1984
    Date of Patent: May 20, 1986
    Assignee: Olin Corporation
    Inventors: James M. O'Connor, Richard L. Frentzel
  • Patent number: 4563499
    Abstract: Polyoxyalkylene foam stabilizing surfactants can be prepared by reacting a polyoxyalkylene adduct, a cyclic nitrogenous vinyl monomer and an esterified unsaturated dibasic acid under free radical polymerization conditions in the presence of a free radical initiator, and by subjecting the reaction product obtained to a solvent extraction. The isolated components can be utilized as surfactants in producing cellular foams.
    Type: Grant
    Filed: April 12, 1985
    Date of Patent: January 7, 1986
    Assignee: The Celotex Corporation
    Inventors: Richard L. Frentzel, Ernest K. Moss
  • Patent number: 4555442
    Abstract: Polyoxyalkylene surfactants for cellular foams can be prepared by reacting a polyoxyalkylene adduct and an esterified unsaturated dibasic acid in the presence of a free-radical initiator.
    Type: Grant
    Filed: April 11, 1985
    Date of Patent: November 26, 1985
    Assignee: The Celotex Corporation
    Inventor: Richard L. Frentzel
  • Patent number: 4546034
    Abstract: Polyoxyalkylene surfactants for cellular foams can be prepared by reacting under free radical polymerization conditions a polyoxyalkylene adduct, a cyclic nitrogenous vinyl monomer and an esterified unsaturated dibasic acid in the presence of an organic or inorganic per-compound and a metal catalyst.
    Type: Grant
    Filed: March 18, 1985
    Date of Patent: October 8, 1985
    Assignee: The Celotex Corporation
    Inventor: Richard L. Frentzel
  • Patent number: 4522877
    Abstract: Polyoxyalkylene foam stabilizing surfactants can be prepared by reacting a polyoxyalkylene adduct, a cyclic nitrogenous vinyl monomer and an esterified unsaturated dibasic acid under free radical polymerization conditions in the presence of a free radical initiator, and by subjecting the reaction product obtained to a solvent extraction. The isolated components can be utilized as surfactants in producing cellular foams.
    Type: Grant
    Filed: November 13, 1984
    Date of Patent: June 11, 1985
    Assignee: The Celotex Corporation
    Inventors: Richard L. Frentzel, Ernest K. Moss
  • Patent number: 4521615
    Abstract: Disclosed is a process for making carboxylic acid-containing mono- and polyether polyol addition products by reacting maleic acid, fumaric acid, or mixtures thereof with at least one polyhydroxy-containing mono- or polyether compound (e.g. a polyether diol or triol) in the presence of a peroxy-type free radical initiator. Also disclosed are the processes of making polyurethane prepolymers and aqueous polyurethane dispersions from these carboxylic acid-containing mono- and polyether polyol addition products and processes for using these dispersions in coatings, adhesives and other useful products.
    Type: Grant
    Filed: March 16, 1983
    Date of Patent: June 4, 1985
    Assignee: Olin Corporation
    Inventor: Richard L. Frentzel