Patent · US Active

Composite ballistic resistant laminate

US9982967B2 · kind B2 · utility

1Cited by

14References

9Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

James Neal Singletary · Midlothian, US
Leopoldo Alejandro Carbajal · Newark, US
William George Kampert · Wilmington, US
Timothy A. Libert · Hockessin, US
Bryan Benedict Sauer · Boothwyn, US

Key dates

Filing date	May 12, 2015
Grant date	May 29, 2018
Priority date	—
Expiry date	Sep 24, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG01N2203/0232
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An impact penetration resistant laminate comprises a plurality of alternating layers of (i) non-fibrous ultra-high molecular weight polyethylene monolayers and (ii) a thermoplastic adhesive, the adhesive having a basis weight of no greater than 5 gsm and a zero-shear-rate viscosity, determined from an oscillating disc rheometer in a frequency sweep between 0.1 rad/s and 100 rad/s, conducted per ASTM D 4440 at 125° C., and calculated from fitting to a Carrea-Yasuda four parameter model, of at least 1500 Pa-s, wherein

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.