摘要:
The invention provides a composition comprising at least one oil, and a first composition comprising the following: A) a first composition A comprising an ethylene/α-olefin/non-conjugated diene interpolymer A, B) an ethylene/α-olefin/non-conjugated diene interpolymer B; and wherein the weight ratio of component A to component B is from 1/1 to 20/1; wherein the Mw of the ethylene/α-olefin/non-conjugated diene B is greater than the Mw of the first composition A; and wherein the composition has a Mooney Viscosity (ML1+4, 100C) from 20 to 100.
摘要:
Bis phenolate transition metal complexes are disclosed for use in alkene polymerization, with optional chain transfer agent, to produce polyolefins.
摘要:
The present invention relates to a A metal complex of formula (1), CyYMLjXn (formula 1) wherein Cy is a cyclopentadienyl-type ligand; M is a metal of group 4; L is a neutral Lewis basic ligand wherein the number of said neutral ligands "j" is in the range of 0 to the amount that satisfies the 18-electron rule; X is an anionic ligand; n is an integer denoting the number of anionic ligands X and is 1 or 2, preferably is 2; Y is a cyclic amidine-containing ligand moiety represented by formula (2), wherein the amidine-containing ligand is covalently bonded to the metal M via the imine nitrogen atom N 2 ; S is a -CH2- unit, and t is the integer number denoting the number of S and is in the range of 1-4, more preferably in the range of 1-2, most preferably is 1; Sub 1 is an aliphatic cyclic or linear substituent comprising a group 14 atom through which Subi is bonded to the amine nitrogen atom N 1 ; Sub2 is an optionally substituted C2 unit in which the 2 carbon atoms may be sp 2 or sp 3 hybridized.
摘要:
A process and the resultant product from the process for continuously making an EPDM utilizing ethylene, propylene, and dienes. This process allows for the creation of products with high diene contents and broad molecular weight distributions while utilizing a continuous flow reactor and a known catalyst. The process allows for these products to be made without gelling, or fouling of the reactor, which are problems known in the art.
摘要:
The present invention relates to a polymer composition comprising a polyolefin, peroxide and a sulphur containing antioxidant, wherein said peroxide is present in an amount which corresponds to X mmol −O-O-/kg polymer composition and said sulphur containing antioxidant is present in an amount which corresponds to Y mmol −OH /kg polymer composition, wherein Y 1 ≤ Y ≤ Y 2 , X ≤ 45 and 0.9 * Y + m ≤ X ≤ n − k * Y, wherein Y 1 is 0.50 and Y 2 is 10, and m is 0.8, n is 70 and k is 4.7; and wherein said polymer composition has a melt flow rate (MFR) of less than 1.7, and said polymer composition comprises less than 0.05 % by weight (wt%) 2,4-Diphenyl-4-methyl-1-pentene; a crosslinked polymer composition, and use thereof, a power cable insulation, a power cable, useful in high voltage (HV DC) and extra high voltage (EHV DC) direct current applications, and a method for reducing electrical conductivity of a crosslinked polymer composition.
摘要:
Compositions may include a monomer, an organic crosslinker, an inorganic crosslinker, and an initiator. Furthermore, compositions may include at least one monomer and triethoxyvinylsilane (TEVS) to provide crosslinking among the at least one monomer.
摘要:
본 발명은 우수한 기계적 물성 및 탄성(유연성)을 동시에 충족할 수 있는 3원계 탄성 공중합체 및 이의 제조 방법에 관한 것이다. 상기 3원계 탄성 공중합체는 4족 전이금속 촉매의 존재 하에 얻어진, 40 내지 70 중량%의 에틸렌, 15 내지 55 중량%의 탄소수 3 내지 20의 알파올레핀 및 0.5 내지 20 중량%의 디엔의 공중합체로서, i) GPC로 측정한 중량 평균 분자량이 100,000 내지 500,000이고, ii) 100℃에서 고무 가공처리 분석기(Rubber Process Analyzer)로 측정한 0.2rad/s의 각진동수에서의 tanδ 값과 100.0 rad/s의 각진동수에서의 tanδ값의 차이인 Δtanδ가 0.5이하이다.
摘要:
본 발명은 전체 공정의 에너지 효율이 최적화되고 고점도 및 고분자량을 가지는 에틸렌-알파올레핀-디엔계 탄성 공중합체의 제조방법에 관한 것이다. 상기 탄성 공중합체의 제조방법은 에틸렌/α-올레핀/디엔계 탄성 공중합체의 공중합 후 용매와 미반응 단량체를 정제하는 공정에서 기액 분리기 및 스트리퍼를 순차 사용하여 중합체 용액으로부터 용매와 미반응 단량체를 분리 및 제거하고, 상기 탄성 공중합체를 회수하는 단계를 포함한다.