US 9,915,012 B2Granted

Compact polymeric gel and fibers made therefrom

AssigneeReliance Industries Limited

InventorsUma Sankar Satpathy, Satya Srinivasa Rao Gandham, Ajit Behari Mathur, Raksh Vir Jasra, Krishna Renganath Sarma, Amit Kumar Punamchand Shah, Yogini Maheshbhai Amin, Gaurang Manilal Mehta, Nanubhai Fuljibhai Patel, Viralkumar Patel

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Abstract

The present disclosure relates to a compact polymer gel consisting of ultrahigh molecular weight polyethylene (UHMWPE), at least one nucleator, at least one filler and at least one fluid medium. The present disclosure also provides a process for the preparation of the compact polymeric gel and fibers from the compact polymeric gel. The fibers prepared in accordance with the present process have tensile strength ranging from 2.5 to 10 GPa and tensile modulus ranging from 110 to 300 GPa.

Claims11

Dependent claims

A compact polymeric gel comprising:

i. ultrahigh molecular weight polyethylene (UHMWPE) in an amount ranging from 2.0 to 25.0% with respect to the total mass of the gel;
ii. at least one nucleator in an amount ranging from 0.05 to 3.0% with respect to the total mass of the gel;
iii. montmorillonite modified with a quaternary ammonium salt as filler, in an amount ranging from 0.025 to 1.0% with respect to the total mass of the gel;
and
iv. at least one fluid medium,
said gel characterized in that the UHMWPE is selected from the group consisting of entangled UHMWPE and a combination of entangled UHMWPE with disentangled UHMWPE (dis-UHMWPE), wherein the amount of dis-UHMWPE is less than the amount of entangled UHMWPE.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/892,817Filed 21 May 2014
Priority: IN 1801/MUM/201321 May 2013
Published: US 2016/0168758 A116 Jun 2016
Granted: 13 Mar 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification18 codes

D01F 6/04
From homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds: from polyolefins
B29C 48/022
Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor:…
B29C 48/05
Characterised by the shape of the extruded material at extrusion: filamentary, e.g. strands
B29C 48/278
Of materials: of additives or processing aids