摘要:
A container comprising a polyolefin composition comprising: A) from 59 wt % to 84 wt %, of a propylene homopolymer having isotactic pentads (mmmm) measured with by 13C-NMR higher than 96%, B) from 16 wt % to 41 wt %, of a copolymer of propylene and ethylene with from 30 wt % to 44 wt %, of ethylene derived units; the sum A) +B) being 100; the composition having an MFR L (Melt Flow Rate according to ISO 1133, condition L, i.e. 230° C. and 2.16 kg load) comprised from 72 to 100 g/10 min.
摘要:
A container comprising a polyolefin composition comprising: A) from 59 wt. % to 84 wt. %, based upon the total weight of the polyolefin composition, of a propylene homopolymer having isotactic pentads (mmmm) measured with 13C-NMR higher than 96%, B) from 16 wt. % to 41 wt. %, based upon the total weight of the polyolefin composition, of a copolymer of propylene and ethylene, wherein the copolymer of propylene and ethylene comprises from 30 wt. % to 44 wt. %, of ethylene derived units based upon total weight of the copolymer of propylene and ethylene; the sum A)+B) being 100 wt. %; the polyolefin composition having an MFR L (Melt Flow Rate according to ISO 1133, condition L, i.e. 230° C. and 2.16 kg load) between 72 and 100 g/10 min.
摘要:
Stretch blow molded containers produced from a propylene polymer composition produced with a Ziegler Natta catalyst, the propylene polymer composition comprising: A. 25.0 wt % to 65.0 wt % of a homopolymer or minirandom copolymer of propylene containing up to 1.0 wt % of at least one of ethylene and C4-C10α-olefins, having an isotactic index greater than about 80%; and B. 35.0 wt % to 75.0 wt % of a random copolymer of propylene and at least one olefin chosen from ethylene and C4-C10 α-olefins, containing about 0.3 to about 30 wt % of said olefin, and having an isotactic index greater than 60.0%; wherein the propylene polymer composition has a melt flow rate of 1 to 25 and a molecular weight distribution greater than 3.5.
摘要:
Stretch blow molded containers comprising a propylene polymer composition produced with a metallocene catalyst, the propylene polymer composition comprising: A. 25.0 wt % to about 75.0 wt % of a homopolymer or minirandom copolymer of propylene containing up to 1.0 wt % of at least one of ethylene and C4-C10 α-olefins, having an isotactic index greater that about 80%; and B. 25.0 wt % to about 75.0 wt % of a random copolymer of propylene and at least one olefin chosen from ethylene anti C4-C10 α-olefins, containing about 0.3 to about 30 wt % of said olefin, and having an isotactic index greater than about 60%; wherein the propylene copolymer composition has a melt flow rate of 1 to 50 and a molecular weight distribution or less than 3.5.
摘要:
A process for producing clear injection stretch blow molded containers comprising: I. molding a propylene polymer composition comprising: (A) a propylene polymer chosen from: (i) a homopolymer or minirandom copolymer of propylene containing up to 1.0 wt % of at least one of ethylene and C4-C10 α-olefins; (ii) a random copolymer of propylene and at least one olefin chosen from ethylene and C4-C10 α-olefins; and (iii) mixtures thereof, the propylene polymer having a melt flow rate of from about 1 to about 50; and (B) about 1 to about 1000 ppm, based on the weight of the propylene polymer, of at least one radiant heat absorbent; thereby forming a preform; and II. stretch blow molding the preform; wherein in step II, heat is supplied by infrared radiation, and the containers have a haze value less than 25.0%.
摘要:
A three-piece molded plastic enclosure for disconnect switches consisting of a base, cover, and door individually fabricated by means of an injection molding process. The base has integrally molded extension tabs cooperating with an integrally molded hasp on the door for allowing the enclosure to be padlocked. A two-part hinge wherein part of the hinge is integrally formed with the cover and the remaining part is integrally formed with the door allowing the door to be assembled to the cover in a hinge-like fashion. Electrical components are attached to the interior of the base and the base is secured to the cover by means of a screw. The screw is only accessible from behind the door when the compartment is unlocked. Besides providing a disconnect switch that is tamper-proof behind a locked door, the molded plastic enclosure is water-tight and environmentally secure.