Akzo Nobel N.v.

Akzo N.v.

Henricus J Van De Ven

Cornelius M Vrouenraets

Jan Jager

Jozef Christiaan Spijkers

Erik De Haan

A water vapor permeable, waterproof polyether ester membrane contains 1 to 10% by weight of finely dispersed carbon particles, especially soot particles, having an average size of 5 to 40 nm.

Water vapor permeable and waterproof polyester membrane pigmented with

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/m.sup.2 /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.

Waterproof, breathable rainwear and waterproof articles of foam plastic

Moldings made from foam plastic having an integrated covering of a laminate having a layer of certain copolyether esters. These are, in particular, foam-molded mattresses and cushions for furniture and vehicles, in particular car seats. Compared with the corresponding known moldings, having a polyurethane layer, they are distinguished by lower processing shrinkage and good bonding of the copolyether ester layer to the polyurethane core.

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Arnhem, Netherlands

Henricus J Van De Ven