FIELD: metallurgy.
SUBSTANCE: thread is produced from polyethylene of super-high molecular weight with characteristic viscosity of 8-40 dl/g. Note here that said thread features creep rate defined at 70°C and 600 MPa equal to at most 5-10-6s-1. Complex thread produced from polyethylene of super-high molecular weight with characteristic viscosity of 8-40 dl/g containing 0.2-10 alkyl groups C1-C4 per 1000 atoms of C features creep rate defined at 70°C and 600 MPa equal to at most 3-10-6s-1. Invention covers also semi-finished articles including said thread, particularly, super-strong ropes, bullet-proof modules, medical implants.
EFFECT: better thread characteristics.
14 cl, 4 dwg, 5 tbl, 28 ex
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Authors
Dates
2013-10-20—Published
2004-12-23—Filed