| Patent Number |
Title Of Patent |
Date Issued |
| 4361508 |
Cable filler compositions comprising a mixture of (a) styrene block copolymer, (b) crystalline p |
November 30, 1982 |
| A cable filler composition comprises a mixture of mineral oil, a styrene-ethylene butylene-stryene block copolymer, and about 2-6 percent by weight of a thermoplastic polymer comprising an isotactic, crystalline polypropylene copolymer containing 0.1-4% by weight of an olefinic comon |
| 4361507 |
Cable filler composition containing (a) crystalline polypropylene homopolymer, (b) styrene block |
November 30, 1982 |
| A cable filler composition comprises a mixture of a mineral oil, a styrene-ethylene-butylene-stryene block copolymer and 2 to 6 weight percent of an isotactic, crystalline polypropylene, the polypropylene having an average molecular weight of between 20,000 and 50,000. |
| 4315841 |
Filled molding composition featuring star-block copolymer conjugated diene and vinyl aromatic co |
February 16, 1982 |
| A molding composition consists of an intimate mixture of:(1) about 25 to about 40 percent calcium carbonate having an average particle size range of from about 450 to about 850 millimicrons and(2) about 60 to about 75 percent star-block copolymer of:(a) about 60 to about 95 percent vinyl aromati |
| 4304874 |
Fire-retardant anhydride copolymers |
December 8, 1981 |
| Copolymers of monovinyl aromatic monomers and the anhydrides of ethylenically unsaturated dicarboxylic acid monomers are blended with water as a blowing agent, bromodiphenylethers as fire retardants, and metal oxides as synergist for the ethers to form a composition which can be foam |
| 4304810 |
Apparatus for and method of making foam articles having densified reinforcing regions |
December 8, 1981 |
| Low density, lightweight foam articles may be provided with certain portions or regions thereof, that are reinforced, having higher density and strength, obtained by compression of the foam in these locations, during or after formation of the foam. Such locations may be made sufficie |
| 4304797 |
Fast-cooling styrene polymer foams |
December 8, 1981 |
| Expandable styrene polymer particles which have fast cooling rates during molding are produced by dry blending styrene polymer particles in the presence of 0.06 to 0.60 parts of decaglyceroloctaoleate per 100 parts of polymer particles. The oleate may be added as sole fast cool agent or |
| 4304796 |
Fast-cooling styrene polymer foams |
December 8, 1981 |
| Expandable styrene polymer particles which have fast cooling rates during molding are produced by dry blending styrene polymer particles in the presence of 0.06 to 0.60 parts of a mixture of alkyl esters of fatty acids per 100 parts of polymer particles. The ester mixture may be added as |
| 4303784 |
Production of polystyrene reflector beads |
December 1, 1981 |
| Many reflector beads have been made from plastics more costly then polystyrene. By the present invention, water white, crystal clear polystyrene beads are prepared from styrene by polymerization in an aqueous solution having a concentration of from about 2.5 to about 6 molar inorgani |
| 4303783 |
Production of reflector beads from precursor beads for expandable polystyrene |
December 1, 1981 |
| Several established methods produce precursor beads suitable for subsequent impregnation with a volatile agent for making expandable polystyrene beads. Different methods have led to production of reflector beads of crystal clear polystyrene for use as reflectors in movie screens, signs, |
| 4298705 |
Rubber-modified fire-retardant imide copolymers |
November 3, 1981 |
| Rubber-modified copolymers of monovinyl aromatic, monomers and imide derivatives of ethylenically unsaturated dicarboxylic acid monomers are blended with water as a blowing agent, bromodiphenylethers as fire retardants, and metal oxides as synergist for the ethers to form a compositi |
| 4298704 |
Fire-retardant monocarboxylic acid amide copolymers |
November 3, 1981 |
| Copolymers of monovinyl aromatic monomers and ethylenically unsaturated monocarboxylic acid amide monomers are blended with water as a blowing agent, bromodiphenylethers as fire retardants, and metal oxides as synergist for the ethers to form a composition which can be foamed to dens |
| 4298703 |
Fire-retardant imide copolymers |
November 3, 1981 |
| Copolymers of monovinyl aromatic monomers and imide derivatives of ethylenically unsaturated dicarboxylic acid monomers are blended with water as a blowing agent, bromodiphenylethers as fire retardants, and metal oxides as synergist for the ethers to form a composition which can be f |
| 4288578 |
High efficiency catalyst for high bulk density polyethylene |
September 8, 1981 |
| A unique high efficiency catalyst for the polymerization of alpha-olefins has been developed based on the use of methanol treated magnesium oxide as support, an equimolar mixture of titanium tetrachloride and tetrabutyltitanate as titanium source impregnated on the support, and an or |
| 4287314 |
Maleimide-styrene copolymer blend with polyurethane |
September 1, 1981 |
| An advantageous blend suitable for compression molding, injection molding, or general molding of plastic articles is prepared by mechanically mixing at an elevated controlled temperature a polyurethane resin and a resin derived from copolymerization maleimide and styrene. |
| 4286070 |
Fire-retardant, rubber-modified, monocarboxylic acid copolymers |
August 25, 1981 |
| Rubber-modified copolymers of monovinyl aromatic monomers and ethylenically unsaturated monocarboxylic acid monomers are blended with water as a blowing agent, bromodiphenylethers as fire retardants, and metal oxides as synergist for the ethers to form a composition which can be foamed t |
| 4284735 |
Polyphenylene oxide blend with rubber-maleimide-styrene copolymer |
August 18, 1981 |
| An advantageous blend suitable for the molding of plastic articles is prepared by mechanically mixing a polyphenylene ether resin and a resin prepared by conducting the polymerization of a mixture of a rubber, maleimide, and styrene. |
| 4284734 |
Moldable blend of interpolymer of rubber, methacrylic acid and styrene with polyurethane |
August 18, 1981 |
| The invention concerns thermoplastic molding compositions consisting essentially of a blend of:A. From about 40% to about 70% by weight of an interpolymer comprising from about 8% to about 16% block polyalkadiene, and from about 51% to about 85% styrene and from about 5% to about 35% met |
| 4278775 |
Maleimide-styrene copolymer blend with polyphenylene oxide |
July 14, 1981 |
| An advantageous blend suitable for the molding of plastic articles is prepared by mechanically mixing a polyphenylene ether resin and a polymeric resin derived from maleimide and styrene. |
| 4278768 |
Rubber-modified fire-retardant anhydride copolymers |
July 14, 1981 |
| Rubber-modified copolymers of monovinyl aromatic monomers and the anhydride of ethylenically unsaturated dicarboxylic acid monomers are blended with water as a blowing agent, bromodiphenylethers as fire retardants, and metal oxides as synergist for the ethers to form a composition which |
| 4278767 |
Fire-retardant monocarboxylic acid copolymers |
July 14, 1981 |
| Copolymers of monovinyl aromatic monomers and ethylenically unsaturated monocarboxylic acid monomers are blended with water as a blowing agent, bromodiphenylethers as fire retardants, and metal oxides as synergist for the ethers to form a composition which can be foamed to densities of |
| 4278732 |
Antilumping expandable styrene polymers |
July 14, 1981 |
| Expandable styrene polymer particles are surface-coated with decaglyceroloctaoleate to prevent the particles from lumping together during expansion. The coating is applied by adding 0.02-0.05 part of decaglyceroloctaoleate to an aqueous suspension containing 100 parts of polymer part |
| 4278731 |
Fast-cooling styrene polymer foams |
July 14, 1981 |
| Expandable styrene polymer particles which have fast cooling rates during molding are produced by dry blending styrene polymer particles in the presence of 0.06 to 0.60 parts of a mixture of alkyl esters of fatty acids per 100 parts of polymer particles. The ester mixture may be added as |
| 4278730 |
Fast-cooling styrene polymer foams |
July 14, 1981 |
| Expandable styrene polymer particles which have fast cooling rates during molding are produced by dry blending styrene polymer particles in the presence of 0.06 to 0.60 parts of decaglyceroloctaoleate per 100 parts of polymer particles. The oleate may be added as sole fast cool agent or |
| 4271271 |
Fire-retardant monocarboxlylic acid amide copolymers |
June 2, 1981 |
| Copolymers of monovinyl aromatic monomers and ethylenically unsaturated monocarboxylic acid amide monomers are blended with water as a blowing agent, bromodiphenylethers as fire retardants, and metal oxides as synergist for the ethers to form a composition which can be foamed to dens |
| 4269871 |
Antilumping expandable styrene polymers |
May 26, 1981 |
| Expandable styrene polymer particles are surface-coated with conjugated diene elastomers to prevent the particles from lumping together during expansion. The coating is applied by adding 0.05-0.25 part of conjugated diene elastomer to an aqueous suspension containing 100 parts of polymer |
| 4266038 |
Rubber-modified fire-retardant imide copolymers |
May 5, 1981 |
| Rubber-modified copolymers of monovinyl aromatic monomers and imide derivatives of ethylenically unsaturated dicarboxylic acid monomers are blended with water as a blowing agent, bromodiphenylethers as fire retardants, and metal oxides as synergist for the ethers to form a compositio |
| 4266037 |
Fire-retardant imide copolymers |
May 5, 1981 |
| Copolymers of monovinyl aromatic monomers and imide derivatives of ethylenically unsaturated dicarboxylic acid monomers are blended with water as a blowing agent, bromodiphenylethers as fire retardants, and metal oxides as synergist for the ethers to form a composition which can be f |
| 4265964 |
Lightweight frothed gypsum structural units |
May 5, 1981 |
| Compositions useful for lightweight structural units such as wallboard panels and the like are provided in which low density expandable thermoplastic granules or particles that have been expanded are used in conjunction with a cementitious base material, such as, gypsum (generally ca |
| 4265963 |
Flameproof and fireproof products containing monoethanolamine, diethylamine or morpholine |
May 5, 1981 |
| Flameproof and fireproof products are formed from a fire-unstable material coated with a polymeric material which is capable of intumescing beginning at a low temperature and has adhesive qualities in conjunction with the fire-unstable material. Upon the application of heat or flame to t |
| 4248984 |
Clear impact resistant thermoplastic star-block copolymers |
February 3, 1981 |
| The preparation of a branched, radial block copolymer having improved falling weight impact properties, especially at temperatures from room temperature to -40.degree. C., and having bimodal distribution of molecular structure in the arms of the block copolymer is described. |
| 4248983 |
Clear impact resistant thermoplastic star-block copolymers |
February 3, 1981 |
| The preparation of a branched, radial block copolymer having improved falling weight impact properties, especially at temperatures from room temperature to -40.degree. C. is described. |
| 4248982 |
Clear impact resistant thermoplastic star-block copolymers |
February 3, 1981 |
| The preparation of a branched, radial block copolymer having improved falling weight impact properties, and having trimodal distribution of molecular structure in the arms of the block copolymer is described. |
| 4248981 |
Clear impact resistant thermoplastic star-block copolymers |
February 3, 1981 |
| The preparation of a branched, radial block copolymer having improved falling weight impact properties, and having trimodal distribution of molecular structure in the arms of the block copolymer is described. |
| 4248980 |
Clear impact resistant thermoplastic star-block copolymers |
February 3, 1981 |
| The preparation of a branched, radial block copolymer having improved falling weight impact properties, and having monomodal distribution of molecular structure in the arms of the block copolymer is described. |
| 4223066 |
Fire retardant treatment of fire unstable materials and products obtained |
September 16, 1980 |
| Pressure treatment of fire unstable materials by an intumescent fire retardant composition which is injected or insinuated into the surface of fire unstable materials results in a fire and flameproof structure with a high capacity to withstand prolonged exposure to flame and heat. |
| 4221884 |
Clear impact resistant thermoplastic star-block copolymers |
September 9, 1980 |
| The preparation of a branched, radial block copolymer having improved falling weight impact properties, especially at temperatures from room temperature to -40.degree. C., and having bimodal distribution of molecular structure in the arms of the block copolymer is described. |
| 4221880 |
Moldable blend of interpolymer of rubber, maleic anhydride and styrene with polyphenylene oxide |
September 9, 1980 |
| The invention concerns thermoplastic molding compositions consisting essentially of a blend of:A. From about 40% to about 95% by weight of a interpolymer comprising from about 8 to about 15% block interpolymers prepared in a stereospecific system using from 5% to 35% vinyl aromatic compo |
| 4209594 |
Thermoplastic elastomer blends having improved resistance to oil |
June 24, 1980 |
| An elastomeric blend having excellent resistance to oil is made from a block copolymer rubber and a graft copolymer made by copolymerizing a macromolecular monomer with one or more alkyl acrylates. The blends are especially useful in shoe sole compositions to impart oil resistance th |
| 4180530 |
Clear impact resistant thermoplastic star-block copolymers |
December 25, 1979 |
| The preparation of a branched, radial block copolymer having improved falling weight impact properties, especially at temperatures from room temperature to -40.degree. C. is described. |
| 4170699 |
Bead size distribution in the suspension polymerization of vinyl aromatic monomers in the presen |
October 9, 1979 |
| The production of polymer beads by a suspension polymerization process in which a vinyl aromatic monomer having a free-radical generating catalyst dissolved therein is suspended in an aqueous medium with the aid of from 0.1 to 2.0 percent by weight, based on monomer, of a finely divided |
| 4169828 |
Bead size distribution in the suspension polymerization of vinyl aromatic monomers |
October 2, 1979 |
| The production of polymer beads by a suspension polymerization process in which a vinyl aromatic monomer having a free-radical generating catalyst dissolved therein is suspended in an aqueous medium with the aid of from 0.1 to 2.0 percent by weight, based on monomer, of a finely divided |
| 4169078 |
Fire and flame retardant compositions in powdered form |
September 25, 1979 |
| An improved flame and fire retardant composition is obtained by reacting the appropriate ingredients in liquid form, drying the product to cake form and pulverizing to obtain a fire and heat retardant powder. This powdered form is advantageous in that it may be readily handled and may be |
| 4168347 |
Fire and heat resistant structures |
September 18, 1979 |
| Fire and heat resistant structures made by the use of fire retardant compositions of the type involving the reaction of phosphoric acid and a reducing sugar are rendered insensitive to moisture by heat curing using high frequency electric current during the production of the fire and hea |
| 4167493 |
High efficiency catalyst for high bulk density polyethylene |
September 11, 1979 |
| A unique high efficiency catalyst for the polymerization of ethylene has been developed based on the use of methanol treated magnesium oxide as support, an equimolar mixture of titanium tetrachloride and tetrabutyltitanate as titanium source impregnated on the support, and an organoa |
| 4160792 |
Thermoplastic molding composition comprising styrene-maleimide and polycarbonate |
July 10, 1979 |
| Thermoplastic molding compositions consist of:(a) 10-90% by weight copolymer of maleimide and styrene containing about 5-35% maleimide and 60-95% styrene; and(b) 10-90% by weight of a polycarbonate of a dihydric phenol and a derivative of carbonic acid. |
| 4154563 |
Apparatus for making structural profiles |
May 15, 1979 |
| The technique uses an extruder for delivering a supply of softened thermoplastic resin material containing a foaming or expanding agent, the resin material being under pressure and therefore unexpanded in the extruder, but being delivered into an unconfined zone of lower pressure for |
| 4153171 |
Resin-coated glass articles |
May 8, 1979 |
| Articles of glass are coated with copolymers of ethylene and 2-norbornenes or terpolymers of ethylene, 2-norbornenes and 1-butene. The coating serves to reduce shatter of the glass and its scatter on breaking. Resin-coated bottles are especially useful for bottling carbonated beverages t |
| 4139522 |
Stabilized ethylene-carbon monoxide copolymers |
February 13, 1979 |
| Ethylene-carbon monoxide copolymer compositions are stablized against degradation by the incorporation therein of manganous salts of phosphorus oxy acids. |
| 4136072 |
Thermoplastic polyolefin film compositions |
January 23, 1979 |
| Improved thermoplastic polyolefin films are provided with the desired improvements in certain properties to make them especially suitable for packaging fresh meat and other foods, as well as for packaging other products, by the use of selected additives to improve or maintain certain |
| 4136058 |
High efficiency catalysts for olefin polymerization |
January 23, 1979 |
| Olefin polymerization catalysts prepared by reducing transition metal compounds with an organometallic compound are rendered highly efficient by reacting excess organometallic compound with a deactivation agent, such as hydrogen chloride, prior to activation of the catalyst with organoal |
