Teijin Aramid B.v.

Adriaan Anton Schaap

Hanneke Boerstoel

Johannes Bos

Dennis Wilbers

Antonius Henricus Maria Schotman

Kurt Rainer Hans-Heinrich Stolze

Sanjay Rastogi

Soon Joo Bovenschen

Joris Van Der Eem

Leonardus Antonius Godfried Busscher

Jules Armand Wilhelmina Harings

Leonardus Antonuis Godfried Busscher

A ballistic-resistant article includes a stack of sheets containing reinforcing linear tension members, the direction of the linear tension members within the stack being no unidirectionally, wherein some of the linear tension members are linear tension members comprising high molecular weight polyethylene and some of the linear tension members comprise aramid. A sheet and a consolidated sheet package contain the ballistic-resistant article, and a method of manufacturing produces the ballistic-resistant article.

Ballistic-resistant articles

The invention relates to a method for obtaining high-tenacity aramid yarn, wherein the yarn is made of a copolymer obtained from a mixture of monomers comprising DAPBI, an aromatic para-diamine, and an aromatic para-diacid, wherein the yarn is heated in at least two process steps, characterized in that in a first step the yarn is heated at a temperature of 200 to 360&#xb0; C. at a tension of at least 0.2 cN/dtex, followed by a second step wherein the yarn is heated at a temperature of 370 to 500&#xb0; C. at a tension of less than 1 cN/dtex. The invention further pertains to a multifilament aramid yarn spun from a sulfuric acid spin dope and having a tenacity of at least 2500 mN/tex.

Method for obtaining high-tenacity aramid yarn

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Oosterbeek, Netherlands

Adriaan Anton Schaap