公开(公告)号：US20240384019A1

公开(公告)日：2024-11-21

申请号：US18693842

申请日：2022-09-20

Applicant: ARLANXEO NETHERLANDS B.V.

Inventor： Philip James HOUGH ,  John BEELEN ,  Raffaele BERNARDO

IPC: C08F210/18 ,  C08F2/06 ,  C08J3/20 ,  C08J3/24 ,  C08K3/04 ,  C08K3/06 ,  C08L23/16

Abstract: A polymer composition comprising at least one EPDM polymer, wherein the at least one EPDM has an ENB content per polymer chain (EPC) of from 80 to 150 determined according to equation (I): EPC = ( [ ENB ] × 10 × Polymer ⁢ Mn ) / 120 ⁢ g / mol ( I ) wherein ‘[ENB]’ is the content of units derived from ENB in the EPDM polymer in % by weight (based on the total weight of the polymer which is 100% by weight) and Polymer Mn is the number average molecular weight in kg/mol of the EPDM polymer as determined by gel permeation chromatography a content of ENB from 6 to 20% by weight. Also provided is a polymer blend composition comprising a blend of a first EPDM polymer and a second EPDM polymer wherein the polymer blend has an ENB content per polymer chain (EPC) of from 80 to 150 and wherein the polymer blend has a total ENB content of from 7.5 to 20% by weight based on the total weight of the polymer blend. Also provided are curable compounds containing the polymer or the blend, methods of making the compounds, cured compounds and articles.

公开(公告)号：US20230183461A1

公开(公告)日：2023-06-15

申请号：US17925497

申请日：2021-05-12

Applicant: ARLANXEO NETHERLANDS B.V.

Inventor： Maria Montserrat ALVAREZ GRIMA ,  John BEELEN ,  Rafaele BERNARDO ,  Christoph GOEGELEIN

IPC: C08L23/16 ,  C08L91/00

CPC classification number: C08L23/16 ,  C08L91/00 ,  C08L2203/14

Abstract: A composition comprising an ethylene copolymer comprising units derived from ethylene, at least one C3-C20 α-olefin, and at least one non-conjugated diene, wherein the copolymer contains

(i) up to and including 58% by weight based on the total weight of the copolymer of units derived from ethylene, preferably from 35 to 56% by weight and more preferably from 38 to 52% by weight;
(ii) up to and including 57% by weight, preferably from 17 to 55% by weight, based on the total weight of the copolymer of units derived from the at least one C3-C20 α-olefins, preferably from propylene; wherein the ethylene copolymer has from about 80 up to about 125 units derived from the one or more diene per polymer chain and wherein the ethylene copolymer is mixed with the oil and the total amount of oil in the composition is 29 phr or less and wherein the composition contains from 60% by weight to 100% by weight, based on the total weight of the composition which is 100%, of ethylene copolymer and oil. Also provided are rubber compositions and rubber compounds and articles comprising the copolymer, and methods of making such articles, compositions and compounds.