Patents Assigned to GAF Corporation
  • Patent number: 4567079
    Abstract: Lighter weight, high strength, built-up roofing (BUR) membranes, systems and process for obtaining same are provided herein. These BUR membranes are made by using an improved ply sheet having uniform ventability and attachment in the overall assembly and superior resistance to wind uplift. The improved structure involves a ply sheet carrying 1/8 inch diameter or larger perforations along its longitudinal border in an area comprising between 1/5 and about 1/2 the width of the ply sheet. The ply sheets here employed for the BUR assembly or membrane have a thickness essentially not in excess of the layer of bonding agent applied over each ply in the assembly.
    Type: Grant
    Filed: October 1, 1984
    Date of Patent: January 28, 1986
    Assignee: GAF Corporation
    Inventors: V. Robert Canfield, William J. Woodring, Mira C. Kubiak
  • Patent number: 4554311
    Abstract: Vinylpyrrolidone and vinyl acetate monomers are polymerized using free radical initiator consisting of t-Butylperoxypivalate and preferably in solvent consisting essentially of water, isopropyl alcohol, sec. butyl alcohol or mixtures thereof to produce vinyl pyrrolidone/vinyl acetate copolymer.
    Type: Grant
    Filed: February 11, 1985
    Date of Patent: November 19, 1985
    Assignee: GAF Corporation
    Inventors: Eugene S. Barabas, James R. Cho
  • Patent number: 4554312
    Abstract: Vinylpyrrolidone is polymerized using free radical initiator consisting essentially of t-Butylperoxypivalate and preferably in solvent consisting essentially of water, isopropyl alcohol, sec. butyl alcohol or mixtures thereof.
    Type: Grant
    Filed: February 11, 1985
    Date of Patent: November 19, 1985
    Assignee: GAF Corporation
    Inventors: Eugene S. Barabas, James R. Cho
  • Patent number: 4549007
    Abstract: A chain extending agent for reaction injection molding (RIM) comprising a normally liquid blend of butanediol and a toluene diamine mono-substituted with an electron withdrawing group and having the formula ##STR1## wherein X is vicinal to an amino radical and is selected from the group of halogen, CN, NO.sub.2, acyl, carboxylate and isomeric mixtures thereof, and wherein the butanediol and diamine are combined in a critical mole ratio of from 4:1 to about 19:1. The above blend is particularly useful in the preparation of large moldings of polyurethane-polyurea elastomer by the RIM or RRIM (reinforced reaction injection molding) process wherein instant preformed blend is added to a mixture of polyol reactant and catalyst before polymerization in the mold with isocyanate to produce a urethane/urea polymer product of improved properties.
    Type: Grant
    Filed: November 16, 1984
    Date of Patent: October 22, 1985
    Assignee: GAF Corporation
    Inventors: I. Sioun Lin, Stanley J. Gromelski, Jr., Jesse Werner, Michael J. Brown, Paritosh M. Chakrabarti
  • Patent number: 4543426
    Abstract: A compound of the formula: ##STR1## where X and Y are independently chlorine or trifluoromethyl.
    Type: Grant
    Filed: January 9, 1984
    Date of Patent: September 24, 1985
    Assignee: GAF Corporation
    Inventor: Kou-Chang Liu
  • Patent number: 4543158
    Abstract: Sheet type felt material comprising 5-20 wt % glass fibers, 40-80 wt % cellulose fibers, 5-25 % binder and 3-20 wt % asphalt. The felt is made on conventional felt making equipment and may be used as siding or roofing underlayment or as facer for foam insulating boards.
    Type: Grant
    Filed: April 2, 1984
    Date of Patent: September 24, 1985
    Assignee: GAF Corporation
    Inventors: Alfredo A. Bondoc, Eugene J. Flood, Frederick W. Sieling
  • Patent number: 4542090
    Abstract: This invention describes an improved ionizing radiation sensitive material having high contrast, high sensitivity and comprised of a metal complex of a mixed half-ester or half amide product of the reaction of an N-hydroxy or N-aminoalkyl amide and a hydroxy alkyl terminally unsaturated compound with an alkylvinyl ether-maleic anhydride copolymer. A typical material is made by reacting a metal salt with the mixed half-ester or half-amide product of the reaction of an N-hydroxy or N-amino alkyl amide and a hydroxy alkyl terminally unsaturated compound with an alkyl vinyl ether-maleic anhydride copolymer.
    Type: Grant
    Filed: April 5, 1984
    Date of Patent: September 17, 1985
    Assignee: GAF Corporation
    Inventor: David F. Lewis
  • Patent number: 4542068
    Abstract: Method of making glass fiber mat of improved tensile strength by forming the mat from a plurality of glass fibers and a binder composition therefor which consists essentially of a urea-formaldehyde resin and alkoxylated alkyl amine surfactant.
    Type: Grant
    Filed: May 18, 1984
    Date of Patent: September 17, 1985
    Assignee: GAF Corporation
    Inventor: Matthew C. Whichard
  • Patent number: 4539356
    Abstract: Polyethylene terephthalate molding composition containing aliphatic glycol phthalate and derivatives of alkali metal taurate or isethionate.
    Type: Grant
    Filed: October 17, 1984
    Date of Patent: September 3, 1985
    Assignee: GAF Corporation
    Inventor: Suzanne B. Nelsen
  • Patent number: 4527509
    Abstract: The processor is designed to develop imaged film in sheet or roll form, using a leaderless system employing edge guiding of the film. In this design the exposed film is transported in such a manner that no physical contact is made with the image area by any part of the processor until the image has been fused onto the film. The toned and fused image is permanent and smudge proof.The processor, as it is designed, has the capability of using different toners, adjusting film speed to meet toning and fusing requirements, changing fusing temperature depending on the toner at a given film speed, and adjusting the action of the air knife to improve its doctoring of the toned image prior to fusing. The processor is compact and lightweight, and the design gives due consideration to the health and safety of the operator.An important feature is the toner tray which has multiple inlets for toner with a central discharge to protect the film that is being processed from scratching.
    Type: Grant
    Filed: May 10, 1984
    Date of Patent: July 9, 1985
    Assignee: GAF Corporation
    Inventor: John J. Richardson
  • Patent number: 4524002
    Abstract: This invention relates to an oil drilling foaming agent comprising a mixture of from about 40% to about 60% by weight of a branched chain hexyl poly(oxyalkanediyl) sulfuric acid or sulfuric salt combined with from about 60% to about 40% by weight of a branched chain octyl- and/or branched chain decyl- poly(oxyalkanediyl) sulfuric acid or sulfuric salt, wherein the number average molecular weight of each of the components in the mixture is between about 180 and about 600. The above composition, in the presence of moisture, provides a superior foaming agent which is particularly useful in geothermal and air drilling operations. The high stability and foaming power of this composition over a wide range of electrolyte and/or electrolyte-diesel fuel concentrations also recommends its use in foam marker formulations, as a component in wall board manufacture and in other energy related applications.
    Type: Grant
    Filed: February 23, 1983
    Date of Patent: June 18, 1985
    Assignee: GAF Corporation
    Inventor: Mohamed M. Hashem
  • Patent number: 4524061
    Abstract: The polymeric sunscreen agents of the present invention comprise interpolymers of(a) an olefinic p-aminobenzoate devoid of hydroxy substitution;(b) N-vinylpyrrolidone;(c) a monomer selected from the group consisting of a vinyl lactam having a number average molecular weight of at least 125, an acrylate or methacrylate or any mixture thereof and optionally(d) acrylic or methacrylic acid.
    Type: Grant
    Filed: April 22, 1983
    Date of Patent: June 18, 1985
    Assignee: GAF Corporation
    Inventors: James R. Cho, Stephen C. Johnson
  • Patent number: 4523004
    Abstract: A chain extending agent for reaction injection molding (RIM) comprising a normally liquid blend of butanediol and a toluene diamine mono-substituted with an electron withdrawing group and having the formula ##STR1## wherein X is vicinal to an amino radical and is selected from the group of halogen, CN, NO.sub.2, acyl, carboxylate and isomeric mixtures thereof, and wherein the butanediol and diamine are combined in a critical mole ratio of from 4:1 to about 19:1. The above blend is particularly useful in the preparation of large moldings of polyurethane-polyurea elastomer by the RIM or RRIM (reinforced reaction injection molding) process wherein instant preformed blend is added to a mixture of polyol reactant and catalyst before polymerization in the mold with isocyanate to produce a urethane/urea polymer product of improved properties.
    Type: Grant
    Filed: June 23, 1983
    Date of Patent: June 11, 1985
    Assignee: GAF Corporation
    Inventors: I. Sioun Lin, Stanley J. Gromelski, Jr., Jesse Werner, Michael J. Brown, Paritosh M. Chakrabarti
  • Patent number: 4521253
    Abstract: Rust is removed from metal surfaces by applying a coating of an aqueous solution of copolymer of maleic acid and monomer. The rust becomes incorporated into the coating during drying and the coating detaches itself from the metal surface without the necessity of peeling or otherwise mechanically removing the rust laden coating.
    Type: Grant
    Filed: September 27, 1983
    Date of Patent: June 4, 1985
    Assignee: GAF Corporation
    Inventor: Eugene S. Barabas
  • Patent number: 4521404
    Abstract: The present invention relates to a polymeric hair conditioning composition of vinyl pyrrolidone monomer, an ammonium derivative monomer and a substantially major amount, based on said monomers, of vinyl caprolactam said polymeric composition optionally containing a minor amount of stearyl methacrylate. Suitable ammonium derivative monomers include dimethylamino propyl methacrylamide, dimethyl diallyl ammonium chloride and a dialkylamino alkyl methacrylate, such as for example dimethylamino ethyl methacrylate.
    Type: Grant
    Filed: November 10, 1982
    Date of Patent: June 4, 1985
    Assignee: GAF Corporation
    Inventors: Donald H. Lorenz, Edward J. Murphy, John M. Rutherford, Jr.
  • Patent number: 4520150
    Abstract: Segmented thermoplastic copolyester elastomers containing recurring polymeric long chain ester units derived from phthalic acids and long chain glycols and short chain ester units derived from phthalic acids and 1,4-butanediol or 1,4-butenediol. The elastomers also contain small amounts of a guanidine stabilizer and small amounts of phosphorus stabilizer and diphenylamine.
    Type: Grant
    Filed: December 1, 1983
    Date of Patent: May 28, 1985
    Assignee: GAF Corporation
    Inventor: Michael D. Golder
  • Patent number: 4520179
    Abstract: Vinylpyrrolidone and vinyl acetate monomers are polymerized using free radical initiator consisting of t-Butylperoxypivalate and preferably in solvent consisting essentially of water, isopropyl alcohol, sec. butyl alcohol or mixtures thereof to produce vinyl pyrrolidone/vinyl acetate copolymer.
    Type: Grant
    Filed: September 20, 1982
    Date of Patent: May 28, 1985
    Assignee: GAF Corporation
    Inventors: Eugene S. Barabas, James R. Cho
  • Patent number: 4520180
    Abstract: Vinylpyrrolidone is polymerized using free radical initiator consisting essentially of t-Butylperoxypivalate and preferably in solvent consisting essentially of water, isopropyl alcohol, sec. butyl alcohol or mixtures thereof.
    Type: Grant
    Filed: September 20, 1982
    Date of Patent: May 28, 1985
    Assignee: GAF Corporation
    Inventors: Eugene S. Barabas, James R. Cho
  • Patent number: 4520149
    Abstract: Segmented thermoplastic copolyester elastomers containing recurring polymeric long chain ester units derived from phthalic acids and long chain glycols and short chain ester units derived from phthalic acids and 1,4-butanediol or 1,4-butenediol. The elastomers also contain small amounts of a quanidine stabilizer and small amounts of phosphorus stabilizer and diphenylamine.
    Type: Grant
    Filed: December 1, 1983
    Date of Patent: May 28, 1985
    Assignee: GAF Corporation
    Inventor: Michael D. Golder
  • Patent number: 4520148
    Abstract: Segmented thermoplastic copolyester elastomers containing recurring polymeric long chain ester units derived from phthalic acids and long chain glycols and short chain ester units derived from phthalic acids and 1,4-butanediol or 1,4-butenediol. The elastomers also contain small amounts of a guanidine stabilizer and preferably also contain small amounts of phosphorus stabilizer and diphenylamine.
    Type: Grant
    Filed: December 1, 1983
    Date of Patent: May 28, 1985
    Assignee: GAF Corporation
    Inventor: Michael D. Golder