The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 27, 2019
Filed:
May. 26, 2014
Reliance Industries Limited, Mumbai, IN;
Ajit Behari Mathur, Vadodara, IN;
Satya Srinivasa Rao Gandham, Vadodara, IN;
Uma Sankar Satpathy, Vadodara, IN;
Krishna Renganath Sarma, Vadodara, IN;
Yogesh Popatrao Patil, Vadodara, IN;
Nanubhai Fuljibhai Patel, Vadodara, IN;
Gaurang Manilal Mehta, Vadodara, IN;
Raksh Vir Jasra, Vadodara, IN;
Reliance Industries Limited, Maharashtra, Mumbai, IN;
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.