Channelview, TX, United States
Channelview, TX, United States

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Patent
Equistar Chemicals and Basell Poliolefine Italia S.r.l. | Date: 2017-01-25

The present disclosure provides a polyolefin-based composition suitable for use as adhesives and/or tie-layer adhesive compositions as well as a multi-layered structure made from and/ or containing the polyolefin-based composition. The polyolefin-based composition is made from and/or contains (a) a grafted polyolefin composition, (b) a first polymer composition, (c) a polypropylene-containing blend composition, and (d) optionally, an additives composition having one or more additives.


A polyolefin-based composition made from or containing (A) a first polymer composition made from or containing a polyolefin grafted with an unsaturated monomer, (B) a second polymer composition made from or containing a polyethylene, and (C) a third polymer composition made from or containing (i) a first polyisobutylene and (ii) a second polyisobutylene. The first polyisobutylene has a Viscosity Average Molecular Weight (VAMW_(1)), and the second polyisobutylene has a Viscosity Average Molecular Weight (VAMW_(2)), wherein VAMW_(1)VAMW_(2). The polyolefin-based composition is useful as an adhesives or a tie-layer adhesive composition for multi-layered structures. In particular, the composition is useful as an adhesive to bind a metal layer to a dissimilar substrate.


Patent
Equistar Chemicals and Basell Poliolefine Italia S.r.l. | Date: 2017-06-21

A polymer composition and/or an article containing: (a) a random propylene terpolymer which comprises: (i) 90.0 - 96.0 wt. %, based on the total weight of the propylene terpolymer, of propylene derived units; (ii) 3.0 - 7.0 wt. %, based on the total weight of the propylene terpolymer, of 1- butene derived units; and (iii) 1.0 - 5.0 wt. %, based on the total weight of the propylene terpolymer, of ethylene derived units; and (b) about 0.01 to about 1.0 wt. %, based on the total weight of the propylene terpolymer, of a clarifying agent, with the balance of the polymer composition being the random propylene terpolymer and/or optionally at least one additive.


The present disclosure provides a polyolefin-based composition made from or containing (A) a first grafted polyolefin composition, (B) a second grafted polyolefin composition made from or containing a first metallocene-catalyzed linear low density polyethylene grafted with an unsaturated monomer, (C) a second metallocene-catalyzed linear low density polyethylene composition, (D) a Ziegler-Natta-catalyzed linear low density polyethylene composition, (E) an elastomeric composition made from or containing (i) an elastomeric ethylene copolymer and (ii) an ethylene-propylene elastomer, and (F) a tackifier composition. Optionally, the polyolefin- based composition may be further made from or contain an additives composition. The polymeric composition is suitable for use as a tie-layer adhesive composition.


Patent
Equistar Chemicals | Date: 2017-04-05

The present disclosure provides a tie-layer adhesive comprising a first polymer composition comprising a grafted polyethylene, a second polymer composition comprising a polyethylene derived from a metallocene catalyst, a third polymer composition that comprises low density polyethylene. In general embodiments, the tie-layer adhesive comprises a primary additive and/or a secondary additive.


The present disclosure provides for a polyolefin-based composition made from or comprising (A) a first polymer composition made from or containing an ethylene polymer grafted with an unsaturated monomer, and (B) a second polymer composition comprising a propylene polymer, wherein the ethylene polymer grafted with an unsaturated monomer is covalently bonded to the propylene polymer. The polymeric composition may be used as a tie-layer adhesive composition.


A molded article made from and/or containing a polymeric composition made from and/or containing a high melt flow rate polypropylene homopolymer composition, a compatibilizer, a polyethylene-based elastomer, and talc is provided. An automobile part, including bumper facias, body side-molding, instrumental panels, side pillars, and door trims, with improved coefficients of linear thermal expansion is also provided.


The present disclosure relates to catalysts comprising two heterogeneous chromium catalysts for the polymerization of olefins are provided herein. The catalysts, as well as related compositions and methods using the same, may be used to for the production of polyolefins, including for the production of bimodal molecular weight distribution polyolefins, e.g., polyethylene and copolymers of ethylene and 1-hexene.


Patent
LyondellBasell Industries and Equistar Chemicals | Date: 2016-05-17

Embodiments of the present disclosure include methods for producing aromatic products, the methods including separating a crude oil and condensate feed into at least a light naphtha stream, a heavy naphtha stream, and a bottoms stream, reforming at least a portion of the heavy naphtha stream to produce a reformate stream, feeding a cracker feed stream, comprising the light naphtha stream, the bottoms stream, and a reformate extraction raffinate, to an olefins cracker to produce cracker products comprising pyrolysis gasoline, and introducing an extractor feed stream comprising the pyrolysis gasoline and the reformate to an aromatic extraction unit to produce an aromatic product and the reformate extraction raffinate.


A tie layer adhesive composition for multilayer structures, wherein the tie layer is composed of a graft polyolefin and a hybrid polyolefin.

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