Patent classifications
C08F2500/20
Ethylene interpolymer
Metallic complexes having indenyl ligands can be used as an ingredient of a catalyst system. The catalyst system can be used in polymerizations of ethylenically unsaturated hydrocarbon monomers that include both olefins and polyenes. Embodiments of the catalyst system can provide interpolymers that include polyene mer and from 40 to 75 mole percent ethylene mer, with a plurality of the ethylene mer being randomly distributed. The catalyst system also can be used in solution polymerizations conducted in C.sub.5-C.sub.12 alkanes, yielding interpolymers that include at least 10 mole percent ethylene mer.
Ethylene interpolymer
Metallic complexes having indenyl ligands can be used as an ingredient of a catalyst system. The catalyst system can be used in polymerizations of ethylenically unsaturated hydrocarbon monomers that include both olefins and polyenes. Embodiments of the catalyst system can provide interpolymers that include polyene mer and from 40 to 75 mole percent ethylene mer, with a plurality of the ethylene mer being randomly distributed. The catalyst system also can be used in solution polymerizations conducted in C.sub.5-C.sub.12 alkanes, yielding interpolymers that include at least 10 mole percent ethylene mer.
Door assembly
A door assembly. The door assembly may include at least one door panel and a door frame having a plurality of frame members including a header and a pair of side jambs. The invention may also be considered a frame member. The frame member may include a core; and a two-piece top piece adjoining the core to form a structural member. The core and the top piece may be a composite of cellulosic material and at least one other material. The door assembly may further include at least one adjacent panel. Also disclosed are door jamb frame members and mullion frame members.
PERMANENTLY TACKY ADHESIVES WITH IMPROVED ENVIRONMENTAL COMPATIBILITY
The invention provides resin- and mineral oil-free pressure-sensitive adhesive compositions, comprising 55%-100% by weight of a copolymer of propylene and one or more further monomers selected from the group composed of ethylene and 1-olefins having 4 to 20 carbon atoms, wherein the copolymer has been prepared with the aid of metallocene catalysts and is characterized by a. a melt viscosity at 170° C. of 20 to 8000 mPas (DIN 53019); b. a density of 0.84 to 0.90 g/cm.sup.3 (23° C., ISO 1183); c. a glass transition temperature of less than −30° C. (DIN EN ISO 11357-2:2014); and d. a flow point, measured according to ASTM D97, of less than 50° C.,
which due to their permanently tacky properties are suitable as pressure-activated pressure-sensitive adhesives.
PERMANENTLY TACKY ADHESIVES WITH IMPROVED ENVIRONMENTAL COMPATIBILITY
The invention provides resin- and mineral oil-free pressure-sensitive adhesive compositions, comprising 55%-100% by weight of a copolymer of propylene and one or more further monomers selected from the group composed of ethylene and 1-olefins having 4 to 20 carbon atoms, wherein the copolymer has been prepared with the aid of metallocene catalysts and is characterized by a. a melt viscosity at 170° C. of 20 to 8000 mPas (DIN 53019); b. a density of 0.84 to 0.90 g/cm.sup.3 (23° C., ISO 1183); c. a glass transition temperature of less than −30° C. (DIN EN ISO 11357-2:2014); and d. a flow point, measured according to ASTM D97, of less than 50° C.,
which due to their permanently tacky properties are suitable as pressure-activated pressure-sensitive adhesives.
Bimodal polypropylene random copolymer
The application provides a bimodal polypropylene random copolymer with good response to nucleating agents, increased crystallization temperature, good mechanical and optical properties, as well as low amounts of extractables and good processability in the sense of high Melt Flow Rate. The present invention further relates to articles made thereof, and the use of the bimodal polypropylene random copolymer for specific applications. It also relates to a process for the preparation of said bimodal polypropylene random copolymer.
Bimodal polypropylene random copolymer
The application provides a bimodal polypropylene random copolymer with good response to nucleating agents, increased crystallization temperature, good mechanical and optical properties, as well as low amounts of extractables and good processability in the sense of high Melt Flow Rate. The present invention further relates to articles made thereof, and the use of the bimodal polypropylene random copolymer for specific applications. It also relates to a process for the preparation of said bimodal polypropylene random copolymer.
Branched ethylene copolymers produced via use of vinyl transfer agents and processes for production thereof
This invention relates to the use of pyridyldiamido and/or quinolinyldiamido transition metal complexes and catalyst systems with an activator and a metal hydrocarbenyl chain transfer agent, such as an aluminum vinyl-transfer agent (AVTA), to produce branched ethylene copolymers, preferably ethylene-butene, ethylene-hexene and ethylene-octene copolymers.
Branched ethylene copolymers produced via use of vinyl transfer agents and processes for production thereof
This invention relates to the use of pyridyldiamido and/or quinolinyldiamido transition metal complexes and catalyst systems with an activator and a metal hydrocarbenyl chain transfer agent, such as an aluminum vinyl-transfer agent (AVTA), to produce branched ethylene copolymers, preferably ethylene-butene, ethylene-hexene and ethylene-octene copolymers.
HETEROPHASIC POLYPROPYLENE COMPOSITION
The invention relates to a new soft heterophasic propylene copolymer with increased melting temperature, improved stiffness and optical properties, as well as the process by which the heterophasic propylene copolymer is produced. Further the present invention is directed to articles made of the inventive heterophasic propylene copolymer, particularly to blow moulded, extrusion blow moulded or injection moulded articles and their use in e.g. medical, pharmaceutical or alimentary applications.