公开(公告)号：US20240343894A1

公开(公告)日：2024-10-17

申请号：US18634566

申请日：2024-04-12

Applicant: LyondellBasell Advanced Polymers Inc.

Inventor： Melanie Longanecker

IPC: C08L23/06 ,  C08J3/00 ,  C08J5/18 ,  C08K3/32 ,  C08K5/13 ,  C08L23/12 ,  C08L23/14

CPC classification number: C08L23/06 ,  C08J3/005 ,  C08J5/18 ,  C08L23/12 ,  C08L23/14 ,  C08J2323/06 ,  C08J2323/12 ,  C08J2323/14 ,  C08K3/32 ,  C08K5/13 ,  C08K2201/012 ,  C08L2205/08 ,  C08L2207/066 ,  C08L2310/00

Abstract: Provided are linear low density polyethylene (LLDPE) compositions including a LLDPE polymer and from 100 ppm to 10,000 ppm of a high molecular weight ethoxylate polymer processing aid (PPA) that is substantially free of fluorine-containing compounds. Also provided are polyolefin masterbatches including from 1 wt. % to 50 wt. % of such inventive high molecular weight ethoxylate PPAs and methods of decreasing melt fracture % in linear low density polyethylene films by blending such high molecular weight ethoxylate polymer processing aids and polyolefin masterbatches into cast films and blown films during extrusion processing.

公开(公告)号：US20240309133A1

公开(公告)日：2024-09-19

申请号：US18576017

申请日：2022-06-30

Applicant: W.R. Grace & Co.-Conn.

Inventor： Zhiru MA ,  Jose Manuel REGO ,  Jonathan REEDS ,  Ping CAI

IPC: C08F210/06 ,  B32B27/08 ,  B32B27/32 ,  C08J5/18

CPC classification number: C08F210/06 ,  B32B27/08 ,  B32B27/32 ,  C08J5/18 ,  B32B2250/24 ,  B32B2307/308 ,  B32B2439/46 ,  B32B2439/70 ,  C08J2323/14

Abstract: A propylene terpolymer is constructed that is particularly well suited for use in heat seal applications. The propylene terpolymer, for instance, can be used to form a heat seal layer on a multilayer film. The heat seal layer can be used to bond two opposing layers of film together for forming packages and other articles. The propylene terpolymer is formed with an increased random ethylene distribution that results in reduced polymer crystallinity, reduced melting temperature, and lower heat seal temperature.

公开(公告)号：US20240301186A1

公开(公告)日：2024-09-12

申请号：US18282050

申请日：2022-01-07

Applicant: Sumitomo Chemical Company, Limited

Inventor： Kensuke ONISHI ,  Hiroshi TOYODA

IPC: C08L23/14 ,  C08J5/18

CPC classification number: C08L23/14 ,  C08J5/18 ,  C08J2323/14 ,  C08J2423/14 ,  C08L2205/025

Abstract: An olefin-based polymer composition capable of forming a film that can be heat-sealed at a relatively low temperature and having good anti-blocking property in the film and a film containing the olefin-based polymer composition are provided. The olefin-based polymer composition contains an olefin-based polymer and satisfies the following requirements (1) to (3): (1): in temperature gradient interaction chromatography of the olefin-based polymer composition measured using a gel permeation chromatograph equipped with a graphite-packed column, an elution amount measured at 70° C. to 95° C. is 10.0 mass % to 28.0 mass % based on 100 mass % of an elution amount measured up to 160° C., (2): an amount of a cold xylene soluble component is 20.0 mass % or less, and (3): a melting point of the olefin-based polymer composition is 150° C. or lower.

公开(公告)号：US20240228759A1

公开(公告)日：2024-07-11

申请号：US18572537

申请日：2022-06-23

Applicant: MITSUI CHEMICALS, INC.

Inventor： Nana TAKAYAMA ,  Hidetake NAKANO ,  Takeshi KANEHARA ,  Yasuhiro KITAHARA ,  Remi KUSUMOTO

IPC: C08L23/08 ,  C08J3/24 ,  C08L23/14 ,  C08L23/16

CPC classification number: C08L23/0815 ,  C08J3/24 ,  C08L23/14 ,  C08L23/16 ,  C08J2323/08 ,  C08J2323/14 ,  C08J2323/16 ,  C08J2423/08 ,  C08J2423/14 ,  C08J2423/16 ,  C08L2205/03

Abstract: A thermoplastic elastomer composition, including 100 parts by mass of an ethylene⋅α-olefin non-conjugated polyene copolymer (A), 20 to 5,000 parts by mass of a soft propylene-based copolymer (B), a melting point (TmB) is not observed or is lower than 115° C., 10 to 500 parts by mass of a crystalline polyolefin (C), a melting point (TmC) is 115° C. or higher, 0 to 70 parts by mass of a softener (D), and 0.01 to 10 parts by mass of a crosslinking agent (E), the soft propylene-based copolymer (B) further satisfies the following requirements (b-1) and (b-2): (b-1) 90 to 50 mol % of a constituent unit derived from propylene, 0 to 30 mol % of a constituent unit derived from 1-butene, and 5 to 30 mol % of a constituent unit derived from ethylene, are contained; (b-2) a molecular weight distribution (Mw/Mn) obtained by gel permeation chromatography (GPC) is in a range of 1.0 to 3.5.

公开(公告)号：US11981801B2

公开(公告)日：2024-05-14

申请号：US16622569

申请日：2018-07-13

Applicant: BOREALIS AG

Inventor： Jingbo Wang ,  Simon Schwarzenberger ,  Klaus Bernreitner ,  Markus Gahleitner

IPC: C08L23/14 ,  C08J5/18

CPC classification number: C08L23/142 ,  C08J5/18 ,  C08J2323/14 ,  C08J2423/14 ,  C08L2203/162 ,  C08L2205/025

Abstract: New polypropylene composition which combines low sealing initiation temperature (SIT), low overall migration, good optical properties, like low haze and good retortability, its use and articles made therefrom.

公开(公告)号：US20240132707A1

公开(公告)日：2024-04-25

申请号：US18479847

申请日：2023-10-03

Applicant: Ticona LLC

Inventor： David W. Eastep ,  Uta Schoenwald-Otten ,  Gennaro Signorelli

IPC: C08L23/14 ,  C08J5/24 ,  C08K7/14

CPC classification number: C08L23/14 ,  C08J5/244 ,  C08K7/14 ,  C08J2323/14

Abstract: A fiber-reinforced polymer composition that contains a polymer matrix and a plurality of long reinforcing fibers distributed within the polymer matrix is provided. The polymer matrix contains a propylene impact copolymer having a first melt flow rate of from about 10 to about 100 grams per 10 minutes and a metallocene-catalyzed propylene homopolymer having a second melt flow rate of from about 10 to about 100 grams per 10 minutes, wherein the ratio of the second melt flow rate to the first melt flow rate is from about 0.1 to about 2. The composition exhibits a toluene equivalent volatile organic content of about 50 μgC/g or less as determined in accordance with VDA 278:2002.

公开(公告)号：US20240093014A1

公开(公告)日：2024-03-21

申请号：US18272409

申请日：2021-12-02

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： Paola Massari ,  Andrea Felisati ,  Claudio Cavalieri ,  Monica Galvan ,  Michele Grazzi

IPC: C08L23/14 ,  B32B27/08 ,  B32B27/32 ,  C08J5/18

CPC classification number: C08L23/142 ,  B32B27/08 ,  B32B27/32 ,  C08J5/18 ,  B32B2250/02 ,  B32B2250/242 ,  B32B2270/00 ,  B32B2307/518 ,  B32B2307/546 ,  B32B2553/00 ,  C08J2323/14 ,  C08J2423/20 ,  C08L2203/16 ,  C08L2205/025

Abstract: A polymer composition made from or containing:



A) from 70 wt % to 95 wt % of a propylene polymer composition made from or containing:

A1) from 15 wt % to 35 wt % of a propylene 1-butene copolymer; and
A2) from 65 wt % to 85 wt % of a propylene ethylene 1-butene terpolymer; and


B) from 5.0 wt % to 30.0 wt % of a copolymer of 1-butene and ethylene containing from 3.0 wt % to 4.2 wt % of ethylene derived units, based upon the total weight of the copolymer of 1-butene and ethylene, wherein the sum of the amounts of A) and B) being 100 wt %.

公开(公告)号：US11732070B2

公开(公告)日：2023-08-22

申请号：US17518103

申请日：2021-11-03

Applicant: BRASKEM AMERICA, INC.

Inventor： Ranadip Ganguly

IPC: C08F210/06 ,  B65D65/38 ,  C08J5/18

CPC classification number: C08F210/06 ,  B65D65/38 ,  C08J5/18 ,  C08F2500/26 ,  C08F2800/20 ,  C08J2323/14 ,  C08F210/06 ,  C08F210/16 ,  C08F2500/26 ,  C08F2500/15

Abstract: This invention relates to the use of ethylene/propylene random copolymers for the production of films having low-haze. In particular, the present invention involves the use of ethylene/propylene random copolymer comprising 90-96.5 wt % propylene and 3.5-10 wt % ethylene demonstrated to have low haze. This invention also relates to an ethylene/propylene random copolymer composition comprising about 3.5-10 wt % ethylene content and about 90-96.5 wt % propylene content, for production of a low-haze film.

公开(公告)号：US20230242748A1

公开(公告)日：2023-08-03

申请号：US16622569

申请日：2018-07-13

Applicant: BOREALIS AG

Inventor： Jingbo WANG ,  Simon Schwarzenberger ,  Klaus Bernreitner ,  Markus Gahleitner

IPC: C08L23/14 ,  C08J5/18

CPC classification number: C08L23/142 ,  C08J5/18 ,  C08L2205/025 ,  C08L2203/162 ,  C08J2323/14 ,  C08J2423/14

Abstract: New polypropylene composition which combines low sealing initiation temperature (SIT), low overall migration, good optical properties, like low haze and good retortability, its use and articles made therefrom.

公开(公告)号：US20180201771A1

公开(公告)日：2018-07-19

申请号：US15741794

申请日：2016-07-14

Applicant: Total Research & Technology Feluy

Inventor： Philippe Lodefier ,  Marc Dufrenoy ,  Julie Dubuisson ,  Amélie Buffard ,  Cristo Boukalidis

IPC: C08L23/14 ,  C08J5/18 ,  C08J3/00

CPC classification number: C08L23/14 ,  B29C51/02 ,  B29K2023/12 ,  B29K2105/256 ,  C08J3/005 ,  C08J5/18 ,  C08J2323/14 ,  C08J2423/12 ,  C08L23/142 ,  C08L2203/30 ,  C08L2205/02 ,  C08L2205/025 ,  C08L23/12

Abstract: The present invention relates to a polypropylene composition for thermoforming comprising: from 50% by weight to at most 90% by weight of a polypropylene A, wherein polypropylene A is a polypropylene random copolymer, based on the total weight of the polypropylene composition; and from 10% by weight to at most 50% by weight of a polypropylene B, wherein polypropylene B is a polypropylene homopolymer, based on the total weight of the polypropylene composition; wherein the melt flow index of polypropylene B is at most 1.0 g/10 min, as measured according to the method of standard ISO 1133, condition M, at 230° C. and under a load of 2.16 kg; and wherein the ratio of the melt flow index of polypropylene A to the melt flow index of polypropylene B is at least 80.