B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 27/36 (2006.01) A41D 31/00 (2006.01) B32B 27/12 (2006.01) D06N 3/12 (2006.01)
Patent
CA 2122308
WATERPROOF, BREATHABLE RAINWEAR AND WATERPROOF ARTICLES OF FOAM PLASTIC ABSTRACT Disclosed is the use of a laminate of a textile material covered with a copolyetherester film having a water vapor transmission rate of at least 1000 g/m2/day for the manufacture therefrom of waterproof rainwear, shoes, tents, and mattress covers, and for the complete covering therewith of molded articles of foam rubber for use in chairs or mattresses, the copolyetherester being composed of a plurality of recurrent intralinear long-chain ester units and short-chain ester units which are randomly joined head-to-tail through ester bonds, with at least 20 wt.% of the long-chain ester units being prepared from a long-chain glycol having a carbon to oxygen ratio in the range of 2.0 to 2.4, which glycol constitutes 15-45 wt.% of the copolyetherester, and with at least 70 wt.% of the short-chain ester units consisting of butylene naphthalate units constituting 20-80 wt.% of the copolyetherester. Compared with the known polyetherester-textile laminates, the claimed laminates exhibit surprisingly low permanent plastic deformation.
Jager Jan
Van de Ven Henricus Joannes Maria
Vrouenraets Cornelius Martinus Franciscus
Akzo Nobel Nv
Gowling Lafleur Henderson Llp
LandOfFree
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