Abstract: The abrasion resistance of organic fiber based ropes and cords is increased by a outer woven cover of tapes of high molecular weight and more preferably ultrahigh molecular weight polyethylene
Type:
Application
Filed:
November 6, 2014
Publication date:
May 14, 2015
Applicant:
POLTECO INC.
Inventors:
Nina Zachariades, Dimitris J. Zachariades, Anagnostis E. Zachariades
Abstract: The abrasion resistance of organic fiber based ropes and cords is increased by a outer woven cover of tapes of high molecular weight and more preferably ultrahigh molecular weight polyethylene.
Type:
Grant
Filed:
April 27, 2011
Date of Patent:
November 11, 2014
Assignee:
Polteco, Inc.
Inventors:
Nina Zachariades, Dimitris J. Zachariades, Anagnostis E. Zachariades
Abstract: The abrasion resistance of organic fiber based ropes and cords is increased by a outer woven cover of tapes of high molecular weight and more preferably ultrahigh molecular weight polyethylene
Type:
Application
Filed:
April 27, 2011
Publication date:
August 18, 2011
Applicant:
POLTECO INC.
Inventors:
Nina Zachariades, Dimitris J. Zachariades, Anagnostis E. Zachariades
Abstract: The abrasion resistance of organic fiber based ropes and cords is increased by a outer woven cover of tapes of high molecular weight and more preferably ultrahigh molecular weight polyethylene.
Type:
Application
Filed:
October 14, 2009
Publication date:
April 29, 2010
Applicant:
POLTECO INC.
Inventors:
Nina Zachariades, Dimitris J. Zachariades
Abstract: A method of producing high modulus and high strength products of polyethylene and other thermoplastic polymers by swelling with a suitable solvent a melt crystallized, or compacted powder morphology to form a pseudo-gel, drying the pseudo-gel, compressing it, and drawing it. The optimum process involves swelling the initial morphology in the form of a tape/ribbon/rod/monofilament/sheet/tube in a non-volatile solvent at temperatures near the polymer crystalline melting point, cooling the morphology under controlled conditions, lightly compressing it to remove the non-volatile solvent, extracting the non-volatile solvent by volatile solvent, removing the volatile solvent by evaporation or vacuum, compressing the morphology between rolls, and then stretching it at temperatures below the crystalline melting point of the polymer to obtain tapes, ribbons, monofilaments, sheets or tubes with improved mechanical properties.
Type:
Grant
Filed:
February 23, 1995
Date of Patent:
January 2, 1996
Assignee:
Polteco, Inc.
Inventors:
Anagnostis E. Zachariades, Premal Shukla
Abstract: A method of producing high modulus and high strength products of polyethylene and other thermoplastic polymers by swelling with a suitable solvent a melt crystallized, or compacted powder morphology to form a pseudo-gel, drying the pseudo-gel, compressing it, and drawing it. The optimum process involves swelling the initial morphology in the form of a tape/ribbon/rod/monofilament/sheet/tube in a non-volatile solvent at temperatures near the polymer crystalline melting point, cooling the morphology under controlled conditions, lightly compressing it to remove the non-volatile solvent, extracting the non-volatile solvent by volatile solvent, removing the volatile solvent by evaporation or vacuum, compressing the morphology between rolls, and then stretching it at temperatures below the crystalline melting point of the polymer to obtain tapes, ribbons, monofilaments, sheets or tubes with improved mechanical properties.
Type:
Grant
Filed:
January 6, 1994
Date of Patent:
April 18, 1995
Assignee:
Polteco, Inc.
Inventors:
Anagnostis E. Zachariades, Premal Shukla