Abstract: Disclosed is a blown film or sheet material comprising a broad molecular weight distribution propylene polymer material having a molecular weight distribution M.sub.w /M.sub.n of about 4 to about 60, a melt flow rate of about 0.5 to about 50 dg/min, and xylene insolubles at 25.degree. C. of greater than or equal to 94%. A mixture of the broad molecular weight distribution propylene polymer material and a heterophasic olefin polymer composition can also be used.

Abstract: Apparatus for coating the interior surfaces of metal containers by electrostatic deposition of specific polyolefin compositions on the separate parts of the containers prior to assembly of the containers and melting of the polyolefin compositions, which includesa first spray booth containing at least one electrostatic powder spraying device for spraying a polyolefin composition powder, the first spray booth being adapted for spraying the bottoms and lids of the containers,means for conveying the bottoms and lids of containers in the first spray booth,a second spray booth containing at least one electrostatic powder spraying device for spraying a polyolefin composition powder, the second spray booth being adapted for spraying the bodies of the containers,means for conveying the bodies of containers in the second spray booth, andat least one electrostatic generator connected to the spraying devices.

Abstract: Disclosed is a drawn, polyolefin fiber useful for nonwoven fabrics, the thermobonding index of said fiber being 4.5-9 Newtons, and the flexibility index thereof being 1020-1500. The fiber is composed of a blend of specified polymers. Also disclosed is a process for making the fiber by spinning the blend from a die hole having at the output end a diameter less than 0.5 mm, and drawing the resulting fiber at a draw ratio of 1.1 to 1.8.

Abstract: The carbon monoxide contained in .alpha.-olefins and saturated hydrocarbons, in particular .alpha.-olefins and C.sub.2-4 saturated hydrocarbons, is removed, by contacting such .alpha.-olefins and saturated hydrocarbons, at a temperature ranging from 0.degree. to 150.degree. C., with a catalyst system comprising a mixture and/or the reaction product of:A) one or more oxides of metals selected from the group consisting of Cu, Fe, Ni, Co, Pt, Pd; andB) one or more oxides of metals selected from the group consisting of metals of groups V B, VI B, or VII B of the Periodic Table;thus reducing the content of carbon monoxide to values lower than 0.03 ppm.

Abstract: Disclosed are a crystalline propylene copolymer composition, film, sheet and plate made therefrom and laminates wherein at least one layer is made therefrom, having low seal initiation temperature and good ink adhesion properties. The composition comprises (percent by weight):A) 20-60% of a crystalline copolymer of propylene with 1 to 5% ethylene; andB) 40-80% of a crystalline copolymer of propylene with 1 to 5% ethylene and 6 to 15% C.sub.4 -C.sub.8 .alpha.-olefin.In the composition the total content of ethylene being 1% to 5% and of C.sub.4 -C.sub.8 .alpha.-olefin being 2.4% to 12%.

Abstract: Saxony carpet containing a pile yarn comprising propylene polymer yarn of increased resiliency and shrinkage, compared to crystalline propylene homopolymer yarn, having a continuous strand of multiple monofilament fibers, said fibers consisting essentially of certain propylene polymer blends and materials.

Abstract: A process for polymerizing olefins using a fluidized bed, in which the monomer entry point is located at a point above the bed height. A pre-polymerization step can be conducted using a Z/N catalyst along with an alkane diluent, and resultant liquid phase is introduced into the fluidized bed above the bed height. The process may use several reactors in series arrangement.

Abstract: Disclosed is a piperidinyl phosphite composition consisting of a piperidinyl phosphite compound and an additive having a melting point of greater than 155.degree. C. selected from the group consisting of (i) sorbitol compounds, (ii) phosphite compounds and (iii) sterically hindered phenolic compounds, and polyolefin compositions containing them.

Abstract: Disclosed is a normally solid, high molecular weight, non-linear, substantially gel-free, propylene polymer material characterized by high melt strength due to strain hardening which is believed to be caused by free-end long chain branches of the molecular chains forming the polymer.Also disclosed is a process for making the polymer by high energy radiation of a normally solid, high molecular weight, linear, propylene polymer in a reduced active oxygen environment, maintaining the irradiated material in such environment for a specific period of time, and then deactivating free radicals in the material.Further disclosed is the use of the strain hardening polymer in extensional flow operations such as, for example, extrusion coating, film production, foaming and thermoforming.

Abstract: Disclosed is a normally solid, high molecular weight, gel-free, amorphous to predominantly crystalline, propylene polymer characterized by high melt strength due to strain hardening which is believed to be caused by free-end long chain branches of the molecular chains forming the polymer.Also disclosed is a process for making the polymer by high energy radiation of a normally solid, high molecular weight, linear, propylene polymer in a reduced active oxygen environment, maintaining the irradiated material in such environment for a specific period of time, and then deactivating free radicals in the material.Further disclosed is the use of the strain hardening polymer in extensional flow operations such as, for example, extrusion coating, film production, and thermoforming.

Abstract: Fabric prepared from a propylene polymer yarn of increased resiliency and shrinkage, compared to crystalline propylene homopolymer yarn, comprising a strand of multiple monofilament fibers, the fibers consisting essentially of certain propylene polymer blends and materials.

Abstract: Disclosed is a composition comprising, by weight, (a) about 94% to about 30% of a graft copolymer comprising a backbone of a propylene polymer material having graft polymerized thereto monomers that form grafted copolymers or terpolymers, the monomers being selected from the group consisting of (i) styrene and acrylonitrile, and (ii) styrene and maleic anhydride, or alpha-methylstyrene, styrene and maleic anhydride, wherein the grafted copolymers or terpolymers formed from (i) or (ii) are present in an amount of about 10 to about 95 pph of propylene polymer material, (b) about 5% to about 40% of at least one aromatic polycarbonate, and (c) about 1% to about 15% of at least one aliphatic polyester. The composition optionally also comprises about 5% to about 20% of one or more rubber components, about 1% to about 50% of a propylene polymer material, or both.

Abstract: Polyolefin compositions comprising one or more crystalline polymers or copolymers of 1-olefins having Melt Index values higher that 20 g/10 min, and, dispersed in the above mentioned polymers or copolymers, a cellulosic material in the form of particles or fiber, as well as the process for the preparation of the above mentioned compositions in pelletized form and their conversion into products by way of injection molding.

Abstract: Disclosed are certain 1,3-2,4-di(substituted arylidene)-and 1,3-2,4-di(substituted heteroarylidene)-D-sorbitols which are useful as clarifying and nucleating additives for crystalline and semi-crystalline polyolefin compositions. Also disclosed are such poly(C.sub.1 -C.sub.8 alpha olefin) compositions containing them.

Abstract: Disclosed is a process for the production of a recycled plastic product from varnished plastic parts by multistagedly grinding but not pulverizing while at the same time subjecting same to a stretching treatment during the pulverizing step to loosen substantially completely all of the varnish sticking thereto. The resulting plastic and varnish particles are separated and thereafter packaged, typically, in the form of granulate. The resulting thermoplastic plastic recycled material does not contain any visible inclusions of more than 0.25 mm.sup.2 of varnished particles in the sheet test.

Abstract: A bituminous mixture having improved physical properties is obtained by adding to a bitumen a polyphosphoric acid (I) containing phosphorus, calculated as P.sub.2 O.sub.5, in amount from 80% to 87% by weight, and a polymer composition (II) comprising (A) a propylene homopolymer or copolymer, (B) optionally an ethylene copolymer fraction insoluble in xylene at ambient temperature and (C) a copolymer fraction soluble in xylene at ambient temperature.

Abstract: Parts of coatings made of plastic material on metal pipes, that have either been removed or damaged, are repaired by using one or more segments of a hollow cylinder having an inside radius equal to the outside radius of the metal pipe and an outside radius equal to the sum of the outside radius of the metal pipe plus a length from 80% to 120% of the thickness of the coating, said hollow cylinder segments being made up of a polymer composition, preferably foamed, comprising (percentages by weight):A) from 92% to 100% of a thermoplastic polymer selected from polypropylene; crystalline copolymers of propylene containing from 2% to 25% in moles of ethylene and/or C.sub.4 -C.sub.10 .alpha.-olefins; heterophasic compositions comprising said polypropylene or crystalline copolymers of propylene in combination with one or more elastomeric olefin copolymers;B) from 0% to 8% of a filler having the function of blocking UV radiation.

Abstract: A process for preparing hyperpure propylene (co)polymers comprising polymerizing the monomer(s) in liquid monomer in the presence of a catalyst obtained by reacting an Al-trialkyl compound with a solid catalyst component comprising magnesium dihalide in active form, having supported thereon a titanium chloride or chloroalcoholate, and an ether having the general formula: ##STR1## where R and R" are the same or different and are C.sub.2-18 alkyl, C.sub.3-18 cycloalkyl, C.sub.6-18 aryl, C.sub.7-18 arylalkyl or alkylaryl radicals.

Abstract: Disclosed is a normally solid, high molecular weight, gel-free, amorphous to predominantly crystalline, propylene polymer characterized by high melt strength due to strain hardening which is believed to be caused by free-end long chain branches of the molecular chains forming the polymer.Also disclosed is a process for making the polymer by high energy radiation of a normally solid, high molecular weight, linear, propylene polymer in a reduced active oxygen environment, maintaining the irradiated material in such environment for a specific period of time, and then deactivating free radicals in the material.Further disclosed is the use of the strain hardening polymer in extensional flow operations such as, for example, extrusion coating, film production, and thermoforming.

Abstract: A normally solid, high molecular weight, gel-free, irradiated ethylene polymer is characterized by high melt strength due to strain hardening elongational viscosity, which is believed to be caused by free-end long chain branching of the molecular chains forming the polymer. The polymer is prepared by (1) irradiating a normally solid, high molecular weight ethylene polymer without strain hardening elongational viscosity while in the solid state in an environment in which the active oxygen concentration is less than 15% by volume, maintaining the irradiated material in this environment while in the solid state for a specific period of time, and then deactivating free radicals present in the material.