Group Iia Metal (be, Mg, Ca, Sr, Ba) Patents (Class 524/400)
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Publication number: 20020064651Abstract: A pressure-sensitive adhesive sheet for skin adhesion in which an adhesive force of the pressure-sensitive adhesive on the backing film does not lower greatly even with the lapse of long term and the initial adhesive force is substantially maintained, and a first-aid adhesive plaster using the same are disclosed. The pressure-sensitive adhesive sheet for skin adhesion comprises a backing film and a pressure-sensitive adhesive layer for skin adhesion formed on one side of the backing film, wherein the backing film comprises about 40 to about 70 parts by weight of a polyester plasticizer having a number average molecular weight of about 1,500 to about 3,000, an appropriate amount of a stabilizer comprising at least one metallic soap selected from the group consisting of fatty acid calcium, fatty acid zinc and fatty acid barium, and about 0.1 to about 1.0 part by weight of hydrotalcite per 100 parts by weight of a vinyl chloride polymer.Type: ApplicationFiled: September 13, 1999Publication date: May 30, 2002Inventors: TAKASHI KINOSHITA, YASUYUKI SASAKI, MASAYOSHI KUNIYA
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Patent number: 6383647Abstract: This invention has its object to provide an interlayer film for laminated glass an interlayer film for laminated glass which, when assembled into laminated glass, offers good transparency, weathering resistance, adhesion, penetration resistance and other characteristics, does not cause marginal whitening of laminated glass even exposed to a highly humid atmosphere, and free from the risk for a fire hazard in autoclaving or the problem associated with edge trimming and a laminate glass comprising said interlayer film. This invention is related to an interlayer film for laminated glass comprising a plasticized poly(vinyl acetal) resin film, wherein, when a laminated glass fabricated by interposing said interlayer film between a pair of glass sheets each 2.0 to 4.0 mm thick is allowed to sit in an environment of 80° C. and 95% relative humidity for 2 weeks, the distance of whitening from its edge is not greater than 7 mm, and when said interlayer film for laminated glass is allowed to sit at 150° C.Type: GrantFiled: August 2, 2000Date of Patent: May 7, 2002Assignee: Sekisui Chemical Co., Ltd.Inventors: Hajime Shohi, Tsuyoshi Hattori, Jiro Miyai
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Publication number: 20020045049Abstract: A hydrophilic coating having a covalently cross-linked hydrophilic polymer suitable for coating medical devices or instruments for introduction into human cavities, the coating further having a water soluble compound, the water soluble compound being glucose, sorbitol, a halide, nitrate, acetate, citrate or benzoate of an alkali metal or alkaline earth metal or silver; acetic acid, glycine or urea. A medical device or instrument for introduction into human cavities having a hydrophilic coating and a method of producing such a medical device or instrument.Type: ApplicationFiled: March 21, 2000Publication date: April 18, 2002Inventor: NIELS JOERGEN MADSEN
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Patent number: 6359048Abstract: By combining alkali earth oxide aluminate phosphors with an alkyd base, a rheology improver, another pigment, an anti-skin additive, and other ingredients, one can achieve a luminescent paint that has characteristics including tintability, applicability, viscosity, appearance and coloration comparable to a non-luminescent paint, with adequate protection from moisture and at a relatively reasonable cost. An alkyd base formulation is the preferred formulation that will allow for the highest amount of loading without compromising the quality of the paint with respect to appearance or applicability. The appearance of the paint in daylight has minimal orange peel or pockmark affects because of the ability of this formulation to suspend and diffuse the large luminescent particles effectively while applying the product. In addition because of the effectiveness of this formulation the appearance of the glow is even, consistent and undisrupted in a properly installed scenario.Type: GrantFiled: June 1, 2000Date of Patent: March 19, 2002Inventor: Debra May Van Duynhoven
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Patent number: 6353048Abstract: A resin composition comprising a saponified ethylene-vinyl acetate copolymer (A) and a metal soap (B) of the general formula (1) obtained by an acid with a group 2 metal oxide or hydroxide. &agr;MO.M(OOCR)2 (1) wherein &agr; represents a numerical value of 0.1˜1.0; M represents a bivalent metal belonging to Group 2 of Periodic Table of the Elements; R represents a saturated or unsaturated alkyl group containing 11˜29 carbon atoms.Type: GrantFiled: April 5, 2000Date of Patent: March 5, 2002Assignee: Nippon Gohsei Kagaku Kogyo Kabushiki KaishaInventors: Hideshi Onishi, Masashi Sogawa
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Patent number: 6348534Abstract: Provided is a toy that includes at least one insert suspended in a transparent play material matrix, especially a play gel. Also disclosed is a play material composition that includes water, polyvinyl alcohol, a surfactant, and a salt. The present invention further provides a play kit that includes a portion of a play material according to the invention and a container for the play material, especially including one or more inserts or sets of inserts.Type: GrantFiled: June 16, 2000Date of Patent: February 19, 2002Inventor: Michael Bianco
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Publication number: 20020005149Abstract: Admixture or additive which provides water-repellency and flexural bond strength improvement in mortar, concrete, or cement, and particularly in masonry mortars. An exemplary admixture composition includes: (a) at least one C8-C30 fatty acid or a derivative thereof, such as a salt, ester, or triglyceride; and (b) a flexural bond strength enhancing material comprising a polymer having a backbone to which are attached carboxyl cement anchoring groups and oxyalkylene groups attached by linkages selected from the group consisting of an amide, an imide, and an ester. A preferred additive optionally includes an air entraining admixture for improving workability of a masonry mortar into which the fatty acid or derivative and the flexural bond strength enhancing material are added. A cementitious composition and method for enhancing water-repellency and flexural bond strength in a masonry mortar are also disclosed.Type: ApplicationFiled: May 25, 1999Publication date: January 17, 2002Inventors: MILIND V. KARKARE, CHIA-CHIH OU, CRAIG T. WALLOCH, ARA A. JEKNAVORIAN
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Patent number: 6333375Abstract: The present invention provides a rubber composition comprising 100 parts by weight of a diene rubber component, 10 to 200 parts by weight of a reinforcing agent, and 0.1 to 15 parts by weight of a fatty acid salt. For example, the diene rubber preferably comprises a diene rubber having a heteroatom-containing polar group, the reinforcing agent preferably comprises carbon black or silica, and the fatty acid salt preferably comprises a metal salt of a C5 to C36 fatty acid. This rubber composition yields a vulcanized rubber showing improvements in heat build-up, tensile strength, abrasion resistance and processability.Type: GrantFiled: May 26, 1998Date of Patent: December 25, 2001Assignee: Zeon CorporationInventors: Masao Nakamura, Yukio Takagishi
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Publication number: 20010051682Abstract: A process for producing an electrolessly plated molded article, which includes molding a resin composition made of a thermoplastic resin having a specific Izod impact strength and a Rockwell surface hardness and an inorganic filler, then treating the surface of the molded article with air blast using an abrasive having a sharp granular shape, and then conducting catalyst coating, activation treatment and electroless plating. It has been possible to apply the electroless plating with a high adhesion strength to the molded article of the thermoplastic resin composition without conducting the chemical etching treatment.Type: ApplicationFiled: July 5, 2001Publication date: December 13, 2001Applicant: IDEMITSU PETROCHEMICAL CO., LTD.Inventors: Eiji Tamura, Wataru Kosaka, Toshimi Arashi
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Publication number: 20010051681Abstract: A pneumatic tire having a tread comprised of (a) a diene-based elastomer containing olefinic unsaturation and (b) from 1 to 150 phr of a metal oxide aerogel.Type: ApplicationFiled: February 27, 2001Publication date: December 13, 2001Inventors: Friedrich Visel, Uwe Ernst Frank, Thierry Florent Edme Materne, Rene Jean Zimmer
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Patent number: 6329458Abstract: An ionomer resin component containing (a) a ternary ionomer resin and optionally (b) a binary ionomer resin, optionally blended with (c) a non-neutralized olefin-unsaturated carboxylic acid random copolymer, is blended with (d) a metal soap of a fatty acid neutralized with a Ca, Mg or Zn cation in a weight ratio from 95:5 to 80:20. A golf ball cover composition based on this mixture has a melt index of 1-10 dg/sec. The cover composition is drastically improved in moldability, resilience and paint coating adhesion. A golf ball having a cover made of the composition is improved in feel and flight performance.Type: GrantFiled: November 24, 1999Date of Patent: December 11, 2001Assignee: Bridgestone Sports Co., Ltd.Inventors: Rinya Takesue, Yasushi Ichikawa, Shunichi Kashiwagi
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Patent number: 6328912Abstract: A mixture for stabilizing polyolefins containing A) either (A1) at least one compound of the formula in which R1 is for example C1-C10alkyl; R2 is C3-C10alkylene; R3 is for example hydrogen or C1-C8alkyl; and n1 is a number from 2 to 50; or (A2) a product obtainable by reacting a product—obtained by reaction of a polyamine of the formula in which n2′, n2″ and n2′″ are a number from 2 to 12 with cyanuric chloride—with a compound of the formula wherein R4 is for example hydrogen or C1-C12alkyl; and R5 is as defined for R3 and B) magnesium oxide, magnesium hydroxide, C) zinc oxide, zinc hydroxide or an organic salt of zinc or magnesium, or a hydrotalcite; and at least one of C1) an UV absorber or C2) 2 pigment.Type: GrantFiled: July 10, 1997Date of Patent: December 11, 2001Assignee: CIBA Specialty Chemicals Corp.Inventor: François Gugumus
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Patent number: 6310129Abstract: A composition of thermoplastic polymer and powdered dried carbide lime. The composition may also be a composition comprising (a) 5-60 parts by weight of powdered dried carbide lime; (b) 20 -95 parts by weight of at least one thermoplastic material selected from the group consisting of thermoplastic polymer, thermoplastic elastomer, and thermoplastic rubber; and (c) 0-60 parts by weight of at least one additive selected from lubricants; stabiliser; antioxidants; plasticisers; pigments and dyes; anti-blocking, anti-static, blowing and release agents; flame-retardants; impact modifiers; coupling and wetting agents; other processing aids and fibrous reinforcing agents. Processes for preparing the powdered dried carbide lime for use as fillers in plastics are also disclosed.Type: GrantFiled: May 25, 2000Date of Patent: October 30, 2001Assignee: RebaseProducts Inc.Inventors: Martin J. Lilly, Mark D. Meade, Jacques Mortimer
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Patent number: 6306940Abstract: Colorant concentrates made from free-flowing polyoxymethylene copolymer as carrier, 15-80% by weight of colorant, 2-15% by weight of nitrogen-containing stabilizer and 0-15% by weight of dispersion aid for coloring pellets or molding compositions made from polyoxymethylene (POM) and for producing colored injection moldings or colored POM extrudates. The products produced with this colorant preparation are particularly stable during processing and have very low formaldehyde emissions.Type: GrantFiled: July 25, 2000Date of Patent: October 23, 2001Assignee: Ticona GmbHInventors: Stefan Disch, Peter Eckardt, Michael Hoffmockel, Karl-Friedrich Mück, Gerhard Reuschel
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Publication number: 20010025072Abstract: A purging agent which contains an ethylene-vinyl alcohol copolymer and which satisfies the conditions specified by the equations (1) and (2) below:Type: ApplicationFiled: June 18, 1997Publication date: September 27, 2001Inventors: TAICHI NEGI, SYUKITI KAWAMURA, HIROMICHI NAKANO, SATOSHI HIROFUJI
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Patent number: 6294603Abstract: The present invention provides a metal salt-containing resin composition, which comprises (a) a hydrophilic polymer which is a polymer or copolymer of an ethylene oxide-containing monomer, and (b) 0.1 to 30% of a metal salt, based on the weight of the hydrophilic polymer. The resin composition of the present invention has long lasting antistatic properties and a lower surface resistivity than the hydrophilic polymer alone.Type: GrantFiled: August 8, 2000Date of Patent: September 25, 2001Assignee: Industrial Technology Research InstituteInventors: Yuung-Ching Sheen, Pin-Sheng Wang, Mei-Ling Tong, Ya-Hui Lin, Juh-Shyong Lee
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Patent number: 6294120Abstract: A purging agent which contains an ethylene-vinyl alcohol copolymer and which satisfies the conditions specified by the equations (1) and (2) below: 20≧BT(120)≧0.1 (1) 500≧BT(250)/BT(120)≧1.5 (2), where BT(120) is weight loss (%) on heating in nitrogen at 120° C. for 24 hours, and BT(250) is weight loss (%) on heating in nitrogen at 250° C. for 6 hours, rapidly discharges residual thermoplastic resin containing EVOH from molding equipment, and also rapidly discharges itself when a fresh resin is fed again to the equipment. This leads to a remarkable reduction in loss due to residual purging agent. In addition, the purging agent causes only a small amount of resin to stick to the equipment, even after repeated purging. After purging, it is possible to restore normal operation within a short period of time.Type: GrantFiled: June 18, 1997Date of Patent: September 25, 2001Assignee: Kuraray Co., Ltd.Inventors: Taichi Negi, Syukiti Kawamura, Hiromichi Nakano, Satoshi Hirofuji
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Publication number: 20010021739Abstract: Novel latex or emulsion compositions containing internally plasticizing and crosslinkable monomers derived from traditional semi-drying or non-drying oils are disclosed and claimed. The monomers are ethylenically unsaturated derivatives of long-chain olefinic compounds. Preferred embodiments include latex formed from acrylate or methacrylate esters of fatty alcohols. A process for the synthesis of the latex composition is also disclosed, which involves (a) polymerization of the ethylenically unsaturated derivatives of a long-chain olefinic compound in an aqueous phase with at least one other copolymerizable monomer; and (b) blending of so formed polymer with at least one drier and a surfactant to form the novel latex or emulsion compositions. These compositions form films at low minimum film forming temperatures (MFT) ranging from −5 to 10° C.Type: ApplicationFiled: January 12, 2001Publication date: September 13, 2001Applicant: The University of Southern MississippiInventors: Shelby F. Thames, Kamlesh G. Panjnani, Olan S. Frunchey
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Patent number: 6284827Abstract: A polymerizable fluorine-containing composition is proposed, containing at least one polymerizable compound and at least one fluorine-containing compound, which for reducing the content of fluoride ions extractable with water of cured polymer masses obtainable from the composition additionally contains at least one magnesium compound. The composition is particularly suitable for bonding, potting and coating of electronic devices and for mounting electronic devices on printed circuit boards. Further proposed is a process for the preparation of cured polymer masses having a reduced content of fluoride ions extractable with water, comprising polymerizing and curing the composition to which at least one magnesium compound is added prior to the polymerization.Type: GrantFiled: March 11, 1999Date of Patent: September 4, 2001Assignee: Delo Industrieklebstoffe GmbH Co. KInventors: Gunther Eckhardt, Dietmar Dengler, Ursula Somnitz
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Publication number: 20010009941Abstract: This invention provides an apparatus and method for injecting an additive directly into a polymer melt stream. The method comprises supplying a melt flow of a polymeric host material to a die assembly having a thin-plate assembly and injecting at least one additive into at least one predetermined location in a cross-section of the melt flow of the polymeric host material while the melt flow passes through the die assembly. The method achieves uniform dosing of the one or more additives in the extrusion direction in the polymeric host material without homogeneously mixing the one or more additives and the polymeric host material. The apparatus for directly injecting one or more additives into a polymer melt stream comprises a pumping system, a die assembly having a thin-plate assembly, and a distribution line.Type: ApplicationFiled: February 27, 2001Publication date: July 26, 2001Applicant: BASF Corporation.Inventors: Charles F. Helms, Dominick A. Burlone, James L. Huff, Thomas Kessler
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Patent number: 6255374Abstract: A formulation based on polyvinyl chloride compounds (PVC) particularly to high mechanical resistance compounds, specially with regard to abrasion. The composition does not have heavy metal based stabilizers and is used for insulation of thin wall automotive primary cable. The present invention includes a process to prepare said formulation.Type: GrantFiled: August 17, 1998Date of Patent: July 3, 2001Assignee: Servicios Condumes S.A. de C.V.Inventors: Alfonso Perez Sanchez, Arturo Hjort Delgado
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Patent number: 6232375Abstract: The invention relates to 4-aminopyrimidinediones and oxazolidino-4-aminopyrimidinediones of the formula I and II given below, a process for their preparation, their use for stabilizing halogen-containing polymers, and compositions composed of compounds of the formula I or II and of chlorine-containing polymers, in particular PVC.Type: GrantFiled: April 4, 2000Date of Patent: May 15, 2001Assignee: Witco Vinyl Additives GmbHInventors: Wolfgang Wehner, Hans-Helmut Friedrich
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Patent number: 6232382Abstract: The saponified ethylene-vinyl acetate copolymer (EVOH) resin composition of the present invention is a composition comprising a saponified ethylene-vinyl acetate copolymer (EVOH) (A) having an ethylene content of 20-60 mole percent and a saponification degree of not less than 90 mole percent, magnesium acetate or/and calcium acetate (B) as an essential component and at least one of acetic acid (C), a boron compound (D) and sodium acetate (E) as an optional component, and is characterized in that the contents of the respective components in said composition, relative to 100 parts by weight of EVOH (A), are as follows: magnesium acetate or/and calcium acetate (B) 0.001-0.02 part by weight on the metal basis; acetic acid (C) 0-0.05 part by weight; the boron compound (D) 0-1 part by weight on the boron basis; and sodium acetate (E) 0-0.1 part by weight on the metal basis; and that the weight loss when said composition is maintained at a temperature (T+70)° C. higher by 70 ° C.Type: GrantFiled: October 1, 1998Date of Patent: May 15, 2001Assignee: Nippon Gohsei Kagaku Kogyo Kabushiki KaishaInventors: Kenji Ninomiya, Koji Kita, Makoto Kunieda
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Patent number: 6232383Abstract: The present invention is a shielding material that resists both nuclear radiation and high temperatures and is especially suited to encasing radioactive waster materials to immobilize them. The material is a mixture comprised of two or more organic polymers in which included fillers are cross-linked within the phenylic side chains of the polymers and copolymers. Other fillers provide radioactive shielding and may be merely included within the cross-linked matrix. The material contains a tough matrix with embedded particles of radiation shielding substances and thermoconductive materials with an overall ceramic-like or ceramometallic properties. The material is thermosetting and can present an extremely hard material—e.g., 20,000 p.s.i. shear strength. The material is comprised of a mixture of vulcanized rubber and/or rubber-like polymers, various radiation shielding inclusions, polyimide resin and phenolformaldehyde resin.Type: GrantFiled: November 6, 1998Date of Patent: May 15, 2001Assignee: Nurescell, Inc.Inventor: Adrian Joseph
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Patent number: 6218454Abstract: An acid-resistant, thermoplastic resin composition which is nonpoisonous and non-halogen and has an acid-resistance for a long period of time, the acid-resistant, thermoplastic resin composition containing a thermoplastic resin, 30 to 70% by weight of magnesium hydroxide which has a specific surface area of 20 m2/g or less and an average secondary particle diameter of 0.2 to 5.0 &mgr;m and is surface-treated with at least one surface-treating agent selected from a water-soluble silane-coupling agent, a phosphoric acid ester, a higher fatty acid or its alkali metal salt, and 1 to 20% by weight of a reaction type compatibilizing agent.Type: GrantFiled: October 15, 1998Date of Patent: April 17, 2001Assignee: Kyowa Chemical Industry Co., Ltd.Inventors: Tsutomu Nosu, Tomoko Tachifuji, Wataru Hiraishi
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Patent number: 6211268Abstract: A polyoxymethylene resin composition comprising: (A) 100 parts by weight of a polyoxymethylene copolymer; (B) 0.01 to 7 parts by weight of an amine-substituted triazine compound; and (C) 0.01 to 5 parts by weight of (C-1) polyethylene glycol having an average molecular weight of 10,000 or more and/or (C-2) modified polyolefin wax having an acidic group with an acid value of 0.5 to 60 mg-KOH/g. According to the present invention, there can be provided a polyoxymethylene resin molded product which has low shrink anisotropy, excellent thermal stability and dimensional stability.Type: GrantFiled: May 7, 1999Date of Patent: April 3, 2001Assignee: Mitsubishi Gas Chemical Co IncInventors: Takatoshi Matsumura, Chiharu Nishizawa, Hiroshi Mimura, Hiroshi Yada, Kazuo Kurashige
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Patent number: 6194051Abstract: A structure according to the invention comprises a series of interconnected structural members. The structural members, such as panels, are made of a composition comprising as its first essential ingredient a cured (cross-linked) resin having sufficient strength when filled as described below to support weights up to about 700 pounds without significant buckling, but which has sufficient resilience to flex and rebound from impacts such as low speed collisions with small boats or dropping of heavy human-carried objects without cracking or breaking. The cured resin matrix contains a first filler consisting essentially of inorganic particles effective to improve the impact resistance and flame resistance of the structure, and an amount of a second filler consisting essentially of fibers effective to enhance the rigidity of the structure and reduce crack propagation therein.Type: GrantFiled: July 15, 1997Date of Patent: February 27, 2001Assignee: Bradley CorporationInventors: John M. Gagas, Donald H. Mullett
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Patent number: 6194504Abstract: A method of making MAn salt in particulate form having improved dispersibility in elastomers, wherein M is a metal selected from zinc, calcium, and magnesium or other metals, A is acrylate or methacrylate, and n is 1-4, comprising contacting said salt with a solution of polymer in organic solvent, and then removing the solvent, thereby encapsulating said salt with said polymer. The resultant encapsulated metal acrylate salts, methods of use, and the resultant elastomers are also disclosed. The salts are especially useful as scorch retarders used in the processing of elastomers in a two roll mill or Banbury type internal mixer.Type: GrantFiled: April 28, 1997Date of Patent: February 27, 2001Assignee: Sartomer Technologies, Inc.Inventors: Walter R. Nagel, C. Richard Costin, Gary W. Ceska
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Patent number: 6191246Abstract: The invention provides a polymer which is a polymerization product obtained by polymerizing at least ethylene, 1-pentene and 1-hexene; and a process for producing a polymer by reacting at least ethylene, 1-pentene and 1-hexene in a reaction zone at a pressure between atmospheric and 60 kg/cm3 and at a temperature between 30° C. and 120° C., in the presence of a catalyst system. The invention also provides a polymer composition which comprises a terpolymer of ethylene, 1-pentene and 1-hexene, a phenolic stabilizer component, a metal salt of a higher aliphatic acid, and, optionally, at least one organic phosphite stabilizer.Type: GrantFiled: January 12, 1998Date of Patent: February 20, 2001Assignee: Sasol Technology (Proprietary) LimitedInventors: Dawid Johannes Joubert, Ignatius Hendrik Potgieter, Ioan Tincul, Peter Loggenberg
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Patent number: 6180709Abstract: There is provided a thermoplastic resin composition comprising the following components (A) to (E): component (A): 50 to 74.7% by weight of a Ziegler-Natta catalyst sequentially polymerized blend of a propylene homopolymer and an ethylene-propylene copolymer, component (B): 5 to 10% by weight of an ethylene-octene random copolymer, component (C): 5 to 10% by weight of an ethylene-butene random copolymer, component (D): 0.3 to 5% by weight of an elastomer.Type: GrantFiled: May 15, 1998Date of Patent: January 30, 2001Assignees: Japan Polychem Corporation, Toyota Jidosha Kabushiki KaishaInventors: Takeyoshi Nishio, Takayuki Nagai, Hisayuki Iwai, Yukihito Zanka, Izumi Ishii, Hiroki Satoh, Yoshihiro Sobajima, Mitsuhiro Murayama
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Patent number: 6174941Abstract: A description is given of compounds of the general formula I where Y is oxygen or sulfur, and R1 and R2 independently of one another are C1-C18-alkyl, C3-C6-alkenyl, unsubstituted or C1-C4-alkoxy-, C5-C8-cycloalkyl-, —OH— and/or Cl-substituted C1-C18-alkyl, C5-C8-cycloalkyl, phenyl or C7-C9-phenylalkyl which is unsubstituted or substituted on the phenyl ring by C1-C4-alkyl, C1-C4-alkoxy, C5-C8-cycloalkyl, —OH and/or Cl, and R3 is unsubstituted C9-C18-alkyl or is C1-C18-alkyl substituted by —OH, C1-C12-alkoxy, phenoxy, C6-C8-alkylphenoxy, C7-C9-alkoxyphenyl, —C═O(OR4) and/or —O—COR4, or is C3-C6-alkenyl, C5-C8-cycloalkyl, or mono- to tri-OH—, —C1-C4-alkyl-, —C1-C4-alkoxy-, —C═O(OR4)— and/or —O—COR4-substituted phenyl or naphthyl, and where R4 is C1-C12-alkyl, which are suitable for stabilizing chlorine-containing polymers, especially PVC.Type: GrantFiled: June 18, 1999Date of Patent: January 16, 2001Assignee: Witco Vinyl Additives GmbHInventors: Wolfgang Wehner, Hans-Helmut Friedrich, Rolf Drewes
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Olefin polymer composition having low smoke generation and fiber, film and fabric prepared therefrom
Patent number: 6172153Abstract: A polymer composition and fiber, film and fabric prepared therefrom. The composition contains (i) an acid neutralizing agent other than a metallic salt of a saturated or unsaturated fatty acid, (ii) a processing aid comprising a metallic salt of a saturated or unsaturated fatty acid, the metallic salt of a saturated or unsaturated being present in a maximum amount of 200 ppm, a stabilizer system containing (a) a phosphite selected from the group consisting of 2,2′,2″-nitrilo[triethyl-tris(3,3′,5,5′-tetra-tert.butyl-1, 1-biphenyl-2,2′-diyl)phosphite] and tris(2,4-di-tert-butylphenyl) phosphite; and (b) a N,N-dialkylhydroxylamine. Also disclosed is a method for preparing a polyolefin fiber, film or fabric which includes (A) incorporating the above additives into an olefin polymer, thereby producing a stabilized polyolefin polymer; and (B) extruding the stabilized olefin polymer through a die, thereby producing a olefin polymer fiber or film.Type: GrantFiled: June 12, 1998Date of Patent: January 9, 2001Assignee: Montell North America Inc.Inventor: Michael E. Starsinic -
Patent number: 6166114Abstract: This invention relates to polyester and polyamide compositions which contain a flame retardant, one or more alkaline earth metal salts, and a reinforcing agent. The flame retardant includes a melamine phosphate compound. Addition of at least one alkaline earth metal salt maintains the physical properties and the electrical properties of the resin composition, which degrade upon addition of melamine or melamine salts, while retaining the desired flame retardancy.Type: GrantFiled: August 13, 1998Date of Patent: December 26, 2000Assignee: E. I. du Pont de Nemours and CompanyInventors: Kevin Bodle Cosstick, Robert Valentine Kasowski
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Patent number: 6162876Abstract: Curable compositions used in circuit boards, structural composite, encapsulating resins, and the like, comprise at least one of a cyanate ester and a cyanate ester prepolymer, a cyanate ester-free aryloxytriazine, and a curing catalyst.Type: GrantFiled: June 11, 1998Date of Patent: December 19, 2000Assignee: General Electric CompanyInventors: Gary William Yeager, Yiqun Pan
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Patent number: 6159614Abstract: A polypropylene resin composition is herein disclosed which is obtainable by blending (A) 100 parts by weight of a polypropylene resin comprising (a) 100 to 20% by weight of a homopolymer of propylene and/or a propylene copolymer containing 4% by weight or less of another olefin unit in which in a pentad fraction by .sup.13 C-NMR, [rrrr/(1-mmmm)].times.100 is in the range of 20 to 60%, a Tm measured by a DSC is 150.degree. C. or more, and a melt enthalpy is 100 J/g or less, and (b) 0 to 80% by weight of a propylene copolymer containing 10 to 80% by weight of an olefin unit other than propylene, with (B.) 0.01 to 5 parts by weight of an octyltin salt of a fatty acid, an alkylenebisfatty acid amide, a fatty acid ester of a polyvalent alcohol, or a metal salt of an aliphatic monocarboxylic acid.Type: GrantFiled: June 1, 1999Date of Patent: December 12, 2000Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Yutaka Azuma, Satoshi Tamura, Tsunenosuke Hiramatsu, Keigo Umemoto, Toshio Kano, Masamichi Kondo
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Patent number: 6156834Abstract: The present invention provides a polyacetal resin composition improved, when molded, in environmental stress cracking resistance and in the physical properties of the weld portion. Environmental stress cracking resistance and physical properties of the weld portion before a heat aging resistance test can be improved by adding, to 100 parts by weight of a polyacetal resin, 0.001 to 1.0 part by weight of a difatty acid alkaline earth metal salt produced using two or more kinds of fatty acid and an alkaline earth metal. Also, the physical properties of the weld portion after a heat aging resistance test can be improved by further adding particular fatty acid ester compounds.Type: GrantFiled: March 17, 1999Date of Patent: December 5, 2000Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Toshiharu Seyama, Mikio Oka, Makoto Doki
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Patent number: 6156833Abstract: An improved emulsification base and a method for manufacturing same for non-aqueous chemical additives comprisesa mixture of water from 68 to 92 percent, of 2-amino-2 methyl-1 propanol from 0.1 to 0.2 percent, of an emulsifying surfactant blend from about 2.2 to 3.2 percent, of methyl esters of soybean oil from about 15-20 percent and of a 30% solution of polymer thickener from about 0.25 to 0.50 percent.Type: GrantFiled: February 12, 1999Date of Patent: December 5, 2000Assignee: PCI Group, Inc.Inventor: Thomas E. Rauls
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Patent number: 6150454Abstract: The invention is directed to improved poly(terephthalic acid diester)-poly(isophthalic acid diester) resins, and in particular to improved polyethylene terephthalate-polyethylene isophthalate resin formulations, the improved formulations containing nucleating and chain-branching agents. The improved formulations of the invention have particular utility in the manufacture of plastic bottles.Type: GrantFiled: November 3, 1998Date of Patent: November 21, 2000Assignee: Arteva North America S.A.R.L.Inventors: Audrey C. Wu, Xiaoyan Huang, Jim Schwietert
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Patent number: 6146557Abstract: Provided is a fire resistant resin composition comprising 100 parts by weight of a thermoplastic resin (I) such as a polyolefin base resin, 10 to 300 parts by weight of at least one flame retardant (II) selected from the group consisting of a nitrogen base flame retardant having no halogen atoms such as an aliphatic amine compound (a) and a triazine compound, a phosphorus base flame retardant having no halogen atoms such as a simple substance (b) of phosphorus, phosphates and polyphosphates and a nitrogen.multidot.phosphorus base flame retardant having no halogen atom such as a phosphate of an aliphatic amine compound (c), a polyphosphate of an aliphatic amine compound, a phosphate of a triazine compound and a polyphosphate of a triazine compound, and 1 to 100 parts by weight of phyllosilicate hydrate (III).Type: GrantFiled: May 6, 1998Date of Patent: November 14, 2000Assignee: Tokuyama CorporationInventors: Hitoshi Inata, Haruyuki Ishida, Tetsuo Kuwaki
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Patent number: 6147146Abstract: Disclosed are an oxymethylene polymer resin composition comprising an oxymethylene polymer, a sterically hindered phenol compound, a low-density polyethylene having a melt index of 0.2 to 100 g/10 minutes, a calcium salt of a fatty acid having 10 to 36 carbon atoms, wherein the calcium salt of a fatty acid has a calcium ion content of not larger than 50 ppm by weight and a chlorine ion content of not larger than 100 ppm by weight, and at least one formaldehyde-reactive substance selected from the group consisting of a non-polymeric compound containing a formaldehyde-reactive nitrogen atom and a polymer containing a formaldehyde-reactive nitrogen atom, and an extrusion molded article obtained from the above resin composition.Type: GrantFiled: March 25, 1999Date of Patent: November 14, 2000Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Mitsuhiro Horio, Toshiharu Seyama
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Patent number: 6143814Abstract: The invention relates to a fusible stabiliser combination for thermoplastic polymers with the features of the main claim. The invention also relates to a process for the preparation of said combination, and thermoplastic polymers produced by the use thereof.Type: GrantFiled: May 7, 1999Date of Patent: November 7, 2000Assignee: Chemson Polymer-Additive Gesellschaft mbHInventors: Michael Schiller, Hartmut Hensel, Charles Videler, Emil Lattacher, Paul Ebner, Klaus Dolleschal, Karoline Pacher, Claudia Umfahrer
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Patent number: 6107383Abstract: Solid form additive systems which are dispersible in aqueous media are disclosed, as are methods for preparing such additive systems and methods for dispersing such additive systems in aqueous media. Also disclosed are methods for applying additives to polymeric particles and the polymeric particles treated by such methods. These polymeric particles can be made into articles that can be used in a wide range of applications, e.g., as film or packaging for food, medicine and the like.Type: GrantFiled: February 22, 1994Date of Patent: August 22, 2000Assignee: Eastman Chemical CompanyInventor: Mahendra K. Sharma
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Patent number: 6103802Abstract: This invention relates to water-based release coating compositions. More particularly, the invention relates to compositions for coating ovenable and dual-ovenable paperboard. Food trays made from this coated paperboard have superior grease resistance, high temperature resistance, and excellent food release properties--characteristics which make these trays particularly suitable for use in baking applications.Type: GrantFiled: August 18, 1998Date of Patent: August 15, 2000Assignee: Westvaco CorporationInventors: Sukun Zhang, Charles G. Ruffner
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Patent number: 6100321Abstract: Ethylene/(meth)acrylic acid ionomers which have been modified with relatively low levels of a stearic acid moiety, particularly metal stearates and especially calcium stearate have improved resilience for a given level of hardness or PGA Compression values. The improvement is seen in bulk material when measurements are made on solid neat spheres. When used as cover material, the improvement is more manifest for softer material, and is less, or disappears, for typical mixed metal ionomer hard covers. The stearic-modified ionomers or ionomer blends are especially useful when the ionomer is formulated for use as a golf ball core, center, one-piece ball and as a soft golf ball cover. For covers, softer ionomer compositions will show an improvement.Type: GrantFiled: April 8, 1998Date of Patent: August 8, 2000Assignee: E. I. du Pont de Nemours and CompanyInventor: John Chu Chen
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Patent number: 6090883Abstract: A process of manufacture of phenolic resins using calcium catalysis not comprising any filtration stage. This result is obtained by holding back the precipitation of the calcium species by the combined use of a chelatant/sequestrant and of a dispersing anionic polymer. Resins which are stable in storage and with excellent water tolerance.Type: GrantFiled: July 10, 1998Date of Patent: July 18, 2000Assignee: Elf AtochemInventors: Stephane Fouquay, Chantal Poulet, Jean-Marc Benoit
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Patent number: 6087427Abstract: The invention relates to a moldable thermoplastic resin composition comprising:(a) 99.95-25% by weight of at least one polyamide-containing compound,(b) 0.05-5% by weight of at least one compound selected from the group consisting of magnesium-, zinc- and aluminium salts, and optionally(c) 0-70% by weight of at least one additive compound, which resin composition has an apparent melt viscosity according to ISO 11443 of less than 100 Pa.s, at a shear rate of 1000 s(-1) and at 0.1% by weight moisture content of the resin composition in the form of granules.This invention furthermore relates to molded articles comprising such a thermoplastic resin composition.Type: GrantFiled: November 12, 1996Date of Patent: July 11, 2000Assignee: E. I. du Pont de Nemours and CompanyInventors: Philip Leslie Boydell, Trevor John Hutley
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Patent number: 6077890Abstract: A stabilizer formulation particularly well suited for improving the properties of thermoplastic polymers is disclosed. The stabilizer formulation contains a combination of stabilizers that improves the process stability of a polymer, prevents the polymer from yellowing, increases the thermal aging stability of the polymer and inhibits the polymer from generating smoke during melt processing. Of particular advantage, the stabilizer formulation improves the stability of a polymer without significantly adversely affecting any other properties of the polymer. In one embodiment, the stabilizer formulation includes a hindered amine, a hydroxyl amine, and one or more hydrolytically resistant phosphites. In one embodiment, the formulation can further contain an acid scavenger for preventing an acid contained within the polymer or produced during processing from harming the polymer.Type: GrantFiled: December 4, 1997Date of Patent: June 20, 2000Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Robert L. Hudson, Mary Lou Delucia
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Patent number: 6077891Abstract: Damaged thermoplastics can be outstandingly stabilized by the use of a mixture comprising a) 0.05 to 20% by weight, based on the plastic to be stabilized, of at least one polyfunctional epoxide, b) 0.01 to 2% by weight, based on the plastic to be stabilized, of at least one sterically hindered phenol.Type: GrantFiled: August 27, 1997Date of Patent: June 20, 2000Assignee: Ciba Specialty Chemicals CorporationInventors: Heinz Herbst, Kurt Hoffmann, Rudolf Pfaendner
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Patent number: 6066689Abstract: Adhesive compositions exhibiting fast cure time in solid form, e.g. in the form of an applicator crayon or glue stick. The adhesive exhibiting polymer of the composition is based on a mixture of critical amounts of high molecular weight polyvinylpyrrolidone polymer, with a lower molecular weight polyvinylpyrrolidone polymer, with water, an organic solvent, and a salt of a long-claim fatty acid, e.g. sodium stearate. Color indicators and other optional ingredients, e.g. mildewcide, can be included.Type: GrantFiled: December 4, 1997Date of Patent: May 23, 2000Assignee: Elmer's Products, Inc.Inventors: Peter Spiros Columbus, John Anderson
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Patent number: 6054198Abstract: A thermally-conductive interface for conductively cooling a heat-generating electronic component having an associated thermal dissipation member such as a heat sink. The interface is formed as a self-supporting layer of a thermally-conductive material which is form-stable at normal room temperature in a first phase and substantially conformable in a second phase to the interface surfaces of the electronic component and thermal dissipation member. The material has a transition temperature from the first phase to the second phase which is within the operating temperature range of the electronic component.Type: GrantFiled: February 14, 1997Date of Patent: April 25, 2000Assignee: Parker-Hannifin CorporationInventors: Michael H. Bunyan, Miksa de Sorgo