HIGH STRENGTH POLYETHYLENE PRODUCTS AND A PROCESS FOR PREPARATION THEREOF

Title:

HIGH STRENGTH POLYETHYLENE PRODUCTS AND A PROCESS FOR PREPARATION THEREOF

Document Type and Number:

WIPO Patent Application WO/2014/192025

Kind Code:

A3

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.

Inventors:

MATHUR AJIT BEHARI (IN)
GANDHAM SATYA SRINIVASA RAO (IN)
SATPATHY UMA SANKAR (IN)
SARMA KRISHNA RENGANATH (IN)
PATIL YOGESH P (IN)
PATEL NANUBHAI F (IN)
MEHTA GAURANG M (IN)
JASRA RAKSH VIR (IN)

Application Number:

PCT/IN2014/000357

Publication Date:

February 26, 2015

Filing Date:

May 26, 2014

Export Citation:

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Assignee:

RELIANCE IND LTD (IN)

International Classes:

B29C51/00; C08F10/00; D02J1/22

Foreign References:

US5693708A	1997-12-02
JP2005313391A	2005-11-10
US5756660A	1998-05-26
EP2036942A1	2009-03-18

Other References: