公开(公告)号：WO2014054055A3

公开(公告)日：2014-04-10

申请号：PCT/IN2013/000604

申请日：2013-10-04

Applicant: RELIANCE INDUSTRIES LIMITED

Inventor： MATHUR AJIT BEHARI ,  RAO GANDHAM SATYA SRINIVASA ,  SATPATHY UMA SANKAR ,  SARMA KRISHNA RENGANATH ,  KADAM VIJAY SHIVAJI ,  JASRA RAKSH VIR

IPC: C08L23/06 ,  C08L23/04 ,  B29C65/00 ,  B32B3/00

Abstract: A polymer composition has homogenous dispersion of a first polymer with a second polymer. The first polymer includes but is not limited to ethylene based homopolymer and ethylene based copolymer. The second polymer has molecular weight higher than the molecular weight of the first polymer and heat of fusion greater than 200 J/g.

公开(公告)号：WO2014102813A1

公开(公告)日：2014-07-03

申请号：PCT/IN2013/000769

申请日：2013-12-13

Applicant: RELIANCE INDUSTRIES LIMITED

Inventor： SARMA KRISHNA RENGANATH ,  PATIL YOGESH POPATRAO ,  PATEL VIRALKUMAR ,  BAGUI MAHUYA ,  MATHUR AJIT BEHARI ,  JASRA RAKSH VIR ,  VAKIL SUKETU ,  VIJAY SHIVAJI KADAM ,  SATPATHY UMA SANKAR ,  GANDHAM SATYA SRINIVASA RAO ,  PATEL JYOTINDRA BACHUBHAI ,  SHETH MITUL SURESHCHANDRA

IPC: C08F4/654 ,  C08F4/76 ,  C08F2/14

CPC classification number: C08F110/02 ,  C08F4/6425 ,  C08F4/6426 ,  C08F4/6455 ,  C08F4/6457 ,  C08F4/649 ,  C08F10/00 ,  C08F2500/01 ,  C08F2500/17 ,  C08F2500/18 ,  C08F2500/24 ,  C08F4/6465 ,  C08F4/654

Abstract: The present disclosure provides a heterogeneous Ziegler-Natta catalyst system to be used in the preparation of ultra-high molecular weight polymers (UHMWP). The system includes at least one procatalyst, at least one co-catalyst, at least one hydrocarbon medium and at least one external donor, wherein the ratio of elemental magnesium to elemental titanium to halide, in the procatalyst, is 1 : 1.3: 3.7; the ratio of elemental aluminum, present in the co-catalyst to elemental titanium, present in the procatalyst, ranges between 6:1 and 12: 1; and the ratio of elemental silicon, present in the external donor to elemental titanium, present in the procatalyst, ranges between 1 : 10 and 10: 1. The present disclosure also provides a process for preparation of UHMWPE using the heterogeneous Ziegler-Natta catalyst system of the present disclosure.

Abstract translation: 本公开提供了用于制备超高分子量聚合物（UHMWP）的异质齐格勒 - 纳塔催化剂体系。 该系统包括至少一种前催化剂，至少一种助催化剂，至少一种烃介质和至少一种外部供体，其中前催化剂中元素镁与元素钛与卤化物的比例为1:1.3:3.7; 存在于前催化剂中的助催化剂中元素钛的元素铝的比例在6:1至12:1之间; 并且存在于前催化剂中的存在于外部供体与元素钛的元素硅的比例在1:10至10:1之间。本公开还提供了使用异质齐格勒 - 纳塔催化剂体系制备UHMWPE的方法 的本公开。

公开(公告)号：WO2014192025A2

公开(公告)日：2014-12-04

申请号：PCT/IN2014/000357

申请日：2014-05-26

Applicant: RELIANCE INDUSTRIES LIMITED

Inventor： MATHUR AJIT BEHARI ,  GANDHAM SATYA SRINIVASA RAO ,  SATPATHY UMA SANKAR ,  SARMA KRISHNA RENGANATH ,  PATIL YOGESH P. ,  PATEL NANUBHAI F. ,  MEHTA GAURANG M. ,  JASRA RAKSH VIR

IPC: C08F10/00

CPC classification number: C08J5/00 ,  B29C43/24 ,  B29K2023/0683 ,  B29K2105/0032 ,  B29K2105/0044 ,  B29K2105/16 ,  B29K2995/0077 ,  B29L2007/007 ,  B32B27/32 ,  C08F110/02 ,  C08J2323/06 ,  C08F2500/01 ,  C08F2500/11

Abstract: The present disclosure relates to a process for the preparation of high strength and high modulus polyethylene products/ laminates consisting of steps such as providing a pre-dried, at least 50% disentangled ultra-high molecular weight polyethylene (UHMWPE) powder, feeding the UHMWPE powder having temperature ranging from -15 °C to 50 °C, at the nip of at least one pair of heated, polished counter rotating calendaring rollers, rotating at different roller speeds to obtain at least one pre- laminate and hot stretching the pre-laminate(s) at a pre-determined temperature and pre-determined stretching speed to obtain high strength laminates. The laminates provided by the present disclosure have tensile strength ranging between 0.5 GPa and 3.0 GPa and tensile modulus ranging between 40 GPa and 200 GPa.

Abstract translation: 本公开涉及一种制备高强度和高模量聚乙烯产品/层压材料的方法，所述高强度和高模量聚乙烯产品/层压材料由诸如提供预干燥的，至少50％的解缠结的超高分子量聚乙烯（UHMWPE）粉末，进料UHMWPE 在至少一对加热的，抛光的反向旋转压延辊的辊隙处，在-15℃至50℃的温度范围内的粉末，以不同的辊速度旋转，以获得至少一个预层压板和热拉伸预热层压板， 层压板以预定的温度和预定的拉伸速度获得高强度层压材料。 由本公开提供的层压体具有在0.5GPa和3.0GPa之间的拉伸强度和在40GPa和200GPa之间的拉伸模量。