公开(公告)号：US20240279452A1

公开(公告)日：2024-08-22

申请号：US18648964

申请日：2024-04-29

Applicant: QINGDAO UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Aihua HE ,  Chenguang LIU ,  Huafeng SHAO

IPC: C08L23/22 ,  C08F2/01 ,  C08F2/06 ,  C08F4/659 ,  C08F210/08

CPC classification number: C08L23/22 ,  C08F2/01 ,  C08F2/06 ,  C08F4/65912 ,  C08F210/08 ,  C08F2400/02 ,  C08F2800/20 ,  C08L2205/025 ,  C08L2205/035 ,  C08L2207/10

Abstract: Disclosed are a high temperature blasting resistance isotactic polybutene alloy and a preparation method thereof. The isotactic polybutene alloy of the present invention comprises 1-40% of isotactic polypropylene in parts by mass, 0.1-10% of a polypropylene-polybutene-1 block copolymer in parts by mass, 35-95.9% of isotactic polybutene-1 of a medium molecular weight in parts by mass, and 3-15% of isotactic polybutene-1 of a high molecular weight in parts by mass. The alloy material is prepared using a method of segmented polymerization of propylene polymerization, high hydrogen content butene polymerization and low hydrogen content butene polymerization. The prepared isotactic polybutene alloy has excellent high temperature blasting resistance and high temperature hydrostatic pressure, is high in vicat softening temperature, and is applicable to pressure pipes.

公开(公告)号：US12065522B2

公开(公告)日：2024-08-20

申请号：US17262075

申请日：2019-07-25

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Erik Delsman ,  Petrus Johannes Hubertus Bronsaer ,  Henrica Norberta Alberta Maria Steenbakkers-Menting ,  Gopala Krishna Surisetty

IPC: C08F210/06 ,  C08F2/01 ,  C08F4/646 ,  C08F4/654 ,  C08F210/02 ,  C08F210/08 ,  C08F210/14 ,  C08L23/16 ,  B01J19/00 ,  C08F210/16 ,  C08L23/20

CPC classification number: C08F210/06 ,  C08F2/01 ,  C08F4/646 ,  C08F4/654 ,  C08F210/02 ,  C08F210/08 ,  C08F210/14 ,  C08L23/16 ,  B01J19/0053 ,  B01J2219/182 ,  C08F210/16 ,  C08L23/20 ,  C08L2314/02

Abstract: The invention relates to a process for production of terpolymers, in particular for the polymerization of propylene, and two other distinct monomers chosen from a group comprising ethylene and a C4-C12 α-olefin in a horizontal stirred reactor comprising an agitated bed and several reaction zones for forming polymer particles.

公开(公告)号：US20240228758A1

公开(公告)日：2024-07-11

申请号：US18396849

申请日：2023-12-27

Applicant: Braskem S.A.

Inventor： Marcelo Farah ,  Paulo Lourenço Brito Herrmann ,  Augusto Cesar Esteves

IPC: C08L23/08 ,  B29C45/00 ,  B29K23/00 ,  C08F210/08

CPC classification number: C08L23/0815 ,  B29C45/0001 ,  B29C45/0055 ,  C08F210/08 ,  B29K2023/065 ,  C08L2205/025 ,  C08L2207/062 ,  C08L2207/066 ,  C08L2314/06

Abstract: A polyethylene-based resin composition for injection stretch blow-molding including a co-crystallized blend of a high density polyethylene (HDPE) base resin and a linear low density polyethylene (LLDPE). A method of producing a polyethylene-based resin composition includes adding the LLDPE to the HDPE base resin at a molten state to provide a blend of HDPE and LLDPE, wherein at the molten state, the LLDPE is fully miscible with the HDPE base resin and co-crystallizing the blend of HDPE and LLDPE.

公开(公告)号：US11912838B2

公开(公告)日：2024-02-27

申请号：US17292880

申请日：2019-11-26

Applicant: ABU DHABI POLYMERS CO. LTD. (BOROUGE) L.L.C ,  BOREALIS AG

Inventor： Subrata Das Kumar ,  Ashish Kumar ,  Shawn Khoo ,  Raghvendra Singh ,  Niraj Dixit

IPC: C08F110/02 ,  C08F210/02 ,  C08J5/18 ,  C08F297/08 ,  C08L23/06 ,  C08L23/08 ,  C08F210/08 ,  C08F210/16

CPC classification number: C08J5/18 ,  C08F110/02 ,  C08F210/02 ,  C08F210/08 ,  C08F210/16 ,  C08F297/083 ,  C08L23/06 ,  C08L23/0815 ,  C08J2353/00 ,  C08F110/02 ,  C08F210/02 ,  C08F2500/04 ,  C08F2500/05

Abstract: The present invention relates to a polyethylene composition comprising a base resin comprising a low molecular weight ethylene polymer component and a high molecular weight ethylene polymer component, wherein the high molecular weight ethylene polymer component has a higher weight average molecular weight than the low molecular weight ethylene polymer component, wherein the base resin has a density of at least 958.0 kg/m3, and the polyethylene composition a melt flow rate MFR2 (190° C., 2.16 kg) of from 0.50 to 0.80 g/10 min and a molecular weight distribution being the ratio of the weight average molecular weight and the number average molecular weight, Mw/Mn, of from 10.0 to 15.0, a process for producing said polyethylene composition, an article comprising said polyethylene composition and the use of said polyethylene composition for the production of a film.

公开(公告)号：US20230340246A1

公开(公告)日：2023-10-26

申请号：US18343193

申请日：2023-06-28

Applicant: Braskem S.A.

Inventor： Tadeu Mezacasa Forest ,  Gustavo Gori Lusa

IPC: C08L23/12 ,  C08F2/34 ,  C08F210/02 ,  C08F210/08

CPC classification number: C08L23/12 ,  C08F2/34 ,  C08F210/02 ,  C08F210/08 ,  C08F2800/10 ,  C08L2205/02 ,  C08L2205/22 ,  C08L2207/02

Abstract: Heterophasic polypropylene copolymer compositions and methods of making the same include a matrix phase of a random polypropylene-based copolymer; and an elastomeric rubber phase dispersed in the matrix phase, wherein the elastomeric rubber phase includes propylene and one or more comonomers and has a viscosity index ratio, relative to a viscosity index of the random polypropylene-based copolymer, that ranges from 0.3 to 1.1; and wherein an average particle size of the dispersed elastomeric rubber phase is less than 300 nm. Methods include dispersing an elastomeric rubber phase that includes propylene and one or more comonomers into a matrix phase of a random polypropylene-based copolymer, wherein the elastomeric rubber phase has a viscosity index ratio, relative to a viscosity index of the random polypropylene-based copolymer that ranges from 0.3 to 1.1.

公开(公告)号：US11760869B2

公开(公告)日：2023-09-19

申请号：US17106328

申请日：2020-11-30

Applicant: Westlake Longview Corporation

Inventor： John H. Brindle, Jr. ,  Richard K. Stuart, Jr. ,  James H. Scott ,  David B. Conner ,  Kevin J. Taylor ,  Scott T. Trochim

IPC: C08F255/02 ,  C08L51/06 ,  C08L91/06 ,  C09J151/06 ,  C08F2/01 ,  C08L23/26 ,  C08L91/00

CPC classification number: C08L51/06 ,  C08F2/01 ,  C08F255/02 ,  C08L23/26 ,  C08L91/00 ,  C08L91/06 ,  C09J151/06 ,  C08F255/02 ,  C08F222/06 ,  C08F210/16 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/08 ,  C09J151/06 ,  C08L23/26 ,  C08L91/00 ,  C09J151/06 ,  C08L91/00 ,  C08F210/16 ,  C08F210/08 ,  C08F2500/12 ,  C08F2500/08

Abstract: Disclosed is a linear low-density polyethylene grafted with maleic anhydride (MAH-g-LLDPE). The MAH-g-LLDPE has a unique combination of properties including a low density and a high melt index.

公开(公告)号：US11708468B2

公开(公告)日：2023-07-25

申请号：US17275939

申请日：2019-09-04

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： Paola Massari ,  Claudio Cavalieri ,  Caroline Cathelin ,  Davide Tartari ,  Marco Ciarafoni ,  Roberto Pantaleoni

IPC: C08L23/16 ,  C08L23/20 ,  C08F210/08 ,  C08F210/02 ,  C08F210/06 ,  C08F210/16 ,  C08J5/18 ,  C08L23/14 ,  C08F2/00

CPC classification number: C08J5/18 ,  C08L23/14 ,  C08F2/001 ,  C08F210/02 ,  C08F210/06 ,  C08F210/08 ,  C08F210/16 ,  C08J2323/14 ,  C08J2423/14 ,  C08L23/16 ,  C08L23/20 ,  C08L2203/162 ,  C08L2205/025 ,  C08L23/16 ,  C08L23/20 ,  C08F2500/12 ,  C08F2500/34 ,  C08F2500/35 ,  C08F2500/36 ,  C08F2800/20

Abstract: A terpolymer compositions made from or containing:

A) From 80 wt % to 97 wt %; of a first propylene, ethylene, 1-butene terpolymer having:

i) the content of ethylene derived units ranging from 0.5 wt % to 3.2 wt %;
ii) the content of 1-butene derived units ranging from 7.2 wt % to 14.8 wt %; and


B) From 20 wt % to 3 wt %; of a second propylene, ethylene, 1-butene terpolymer having:

i) the content of ethylene derived units ranging from 0.5 wt % to 3.2 wt %;
ii) the content of 1-butene derived units ranging from 14.4 wt % to 26.5 wt %; and


the terpolymer composition having the melt flow rate, MFR, measured according to ISO 1133 at 230° C. with a load of 2.16 kg, ranging from 3.0 g/10 min to 20.0 g/10 min; the sum of the amounts of A) and B) being 100 wt %.

公开(公告)号：US20190211122A1

公开(公告)日：2019-07-11

申请号：US16323991

申请日：2017-10-25

Applicant: LG CHEM, LTD.

Inventor： Jeong Kyu LEE ,  Pum Suk PARK ,  In Young SONG ,  Sung Joon OH ,  Yi Young CHOI ,  Soon Ho SUN

IPC: C08F210/16

CPC classification number: C08F210/16 ,  C08F4/65904 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65925 ,  C08F4/65927 ,  C08F2420/06 ,  C08L23/08 ,  C08L23/16 ,  C08F210/08 ,  C08F2500/02 ,  C08F2500/13

Abstract: The present invention relates to an ethylene/alpha-olefin copolymer and, more particularly, to an ethylene/alpha-olefin copolymer that exhibits excellent environmental stress crack resistance by appropriately controlling the ratio of crystal structure domain and amorphous domain, and the like. The ethylene/alpha-olefin copolymer comprises an ethylene repeating unit and an alpha-olefin repeating unit, and has a crystal structure including a crystalline domain containing lamellar crystals and an amorphous domain containing a tie molecule that mediates bonding between the lamellar crystals. The lamellar crystal thickness (dc) of the ethylene/alpha-olefin copolymer as calculated from the result of Small Angle X-ray Scattering (SAXS) analysis is between 12.0 and 16.0 nm, the amorphous domain thickness (da) is between 4.0 and 5.3 nm, and the thickness ratio da/dc is between 0.3 and 0.4.

公开(公告)号：US20190211116A1

公开(公告)日：2019-07-11

申请号：US16335910

申请日：2017-10-25

Applicant: Yingkou Xiangyang Catalyst Co., Ltd. ,  Dalian University of Technology

Inventor： Licai Wang ,  Zhanxian Gao ,  Qinghai Sun ,  Limei Yu ,  Huan Wang ,  Wei Li ,  Guotong Zheng ,  Qingxin Dong ,  Yongqiang Wang ,  Wenwei Wang ,  Zhe Yuan ,  Yang Li

IPC: C08F4/642 ,  C08F2/38 ,  C08F210/02 ,  C08F210/06 ,  C08F210/08 ,  C08F4/649 ,  C08F4/659 ,  C08F2/34

CPC classification number: C08F4/6421 ,  C08F2/34 ,  C08F2/38 ,  C08F4/642 ,  C08F4/649 ,  C08F4/6494 ,  C08F4/654 ,  C08F4/65916 ,  C08F10/06 ,  C08F10/08 ,  C08F210/02 ,  C08F210/06 ,  C08F210/08

Abstract: Disclosed are a Z-N catalyst for α-olefin polymerization and an application thereof, specifically, an industrial production catalyst consisting of (A) a solid catalyst component, (B) a cocatalyst organoaluminum compound and (C) an external electron donor compound and used for α-olefin polymerization or copolymerization processes. The catalyst component is prepared from a transition metal such as titanium and magnesium and a composite aromatic diacid diester/1,3-diether as an internal electron donor. One or more organoaluminum compounds or a mixture thereof serve as the cocatalyst. One or more structure control agent hydrocarbyl alkoxysilicons are compounded with one or more activity regulator organic acid esters as the external electron donor capable of automatically adjusting the polymerization rate. The Z-N catalyst is used for α-olefin polymerization/copolymerization, and can automatically adjust the polymerization rate at a higher polymerization temperature so as to maintain stable operation of a reactor.

公开(公告)号：US20180355229A1

公开(公告)日：2018-12-13

申请号：US16106846

申请日：2018-08-21

Applicant: HENKEL AG & CO. KGAA

Inventor： Ai TAKAMORI

IPC: C09J129/14 ,  C09J7/21 ,  B31F5/04 ,  B32B27/10 ,  B32B27/32 ,  B32B29/08 ,  C08L23/08 ,  C09J7/35 ,  C08L93/04 ,  C08L23/02 ,  C08L53/02 ,  C08F220/32 ,  C08F220/18 ,  C08F222/02 ,  C08F220/14 ,  C08F220/02 ,  C08F218/08 ,  C08F210/16 ,  C08F210/14 ,  C08F210/08 ,  C08F210/06 ,  C08F210/02 ,  C08L91/06 ,  C09J191/06

CPC classification number: C09J129/14 ,  B31F5/04 ,  B32B27/10 ,  B32B27/32 ,  B32B29/08 ,  B32B2255/12 ,  B32B2307/306 ,  B32B2405/00 ,  C08L23/02 ,  C08L23/0815 ,  C08L23/0869 ,  C08L53/025 ,  C08L91/06 ,  C08L93/04 ,  C08L2205/035 ,  C09J7/21 ,  C09J7/35 ,  C09J191/06 ,  C09J2400/283 ,  C09J2409/00 ,  C09J2423/00 ,  C09J2423/04 ,  C09J2423/10 ,  C09J2431/00 ,  C09J2433/00 ,  C09J2491/00 ,  C08F210/02 ,  C08F220/14 ,  C08F2220/325 ,  C08F2500/22 ,  C08F210/14 ,  C08F222/02 ,  C08F2220/1808 ,  C08F210/06 ,  C08F210/16 ,  C08F210/08 ,  C08F220/02 ,  C08F218/08

Abstract: The object of the present invention is to provide a hot melt adhesive which is less likely to cause stringing and has excellent thermal stability, and further has excellent adhesion, in particular adhesion to a paper substrate. The present invention relates to a hot melt adhesive comprising: (A) a polar functional group-modified polymer, (B) a butyral resin, (C) an olefin-based polymer, and (D) a tackifier resin.