Equistar Chemicals

Channelview, TX, United States

Equistar Chemicals

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 (VAMWi), and the second polyisobutylene has a Viscosity Average Molecular Weight (VAMW2), wherein VAMWi VAMW2. 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.


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.


Patent
Equistar Chemicals | Date: 2017-09-06

A film having an A/B/A structure comprising an layer A and a layer B. The layer A is present in an amount ranging from 25 to 65 wt. %, based upon the total weight of the A/B/A structure, and the layer A comprises a first A layer and a second A layer each independently comprise linear low density polyethylene. The layer B is present in an amount ranging from 35 to 75 wt. %, based upon the total weight of the A/B/A structure, and the layer B, which comprises high density polyethylene, is positioned between the first A layer and the second A layer.


The present disclosure provides a thermoplastic olefinic composition made from or containing: (A) a first polymer composition made from or containing a homopolymer polypropylene; (B) a second polymer composition made from or containing a polypropylene polymer grafted with an unsaturated monomer; (C) a third polymer composition made from or containing a first elastomeric ethylene copolymer; and (D) a carbon fiber composition made from or containing a carbon fiber coupled with a sizing composition. Optionally, the thermoplastic olefinic composition may be further made from or contain (a) a fourth polymer composition made from or containing a heterophasic polypropylene copolymer, (b) a fifth polymer composition made from or containing a second elastomeric ethylene composition, (c) an inorganic filler composition, (d) an additives composition, or (e) any combination of these components. The thermoplastic olefinic composition is suitable for use as a metal-replacement component, including automotive components.


Patent
Equistar Chemicals | Date: 2017-04-26

The present disclosure provides a filled composition made from and/or containing (A) a first polymer composition made from and/or containing (i) a heterophasic polypropylene copolymer and (ii) a polypropylene blend, and (B) a biofiller composition made from and/or containing a cellulose-based biofiller. The filled composition can additionally be made with and/or contain an elastomeric ethylene copolymer composition. Optionally, the filled composition can further be made with and/or contains a grafted polyolefin composition. The filled composition is useful in making automotive components.


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.


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.


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.

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