Dsm IP Assets B.v.

Ilse Casteren Van

Ronald Tennebroek

Marc Roelands

Gerardus Cornelis Overbeek

Richard George Coogan

Ann Kuzmin

Geraldus Cornelis Overbeek

An aqueous composition with a sediment content &#x2266;5%, comprising a polyurethane dispersion wherein the polyurethane has an acid value in the range of from 25 to 65 mgKOH/g and comprises (i) 36 to 60 wt % of at least one aromatic polyisocyanate and where the polyurethane is prepared in the presence of (a) &#x2266;5 wt % of 1-methyl-2-pyrrolidinone by weight of the polyurethane, (b) 5 to 100 wt % of 1-ethyl-2-pyrrolidinone by weight of polyurethane and (c) water.

Low NWP aqueous polyurethane composition

An aqueous composition comprising a polyurethane dispersion with a sediment content &#x2266;5%, wherein the polyurethane has an acid value in the range of from 25 to 65 mgKOH/g and comprises (i) 36 to 60 wt % of at least one aromatic polyisocyanate and where the polyurethane is prepared in the presence of (a) &#x2266;5 wt % of 1-methyl-2-pyrrolidinone by weight of the polyurethane and (b) at least one reactive diluent.

Low NMP aqueous polyurethane composition with reactive diluent

An aqueous composition with a sediment content &#x3c;5%, comprising a polyurethane dispersion wherein the polyurethane has an acid value in the range of from 25 to 65 mgKOH/g and comprises (i) 36 to 60 wt % of at least one aromatic polyisocyanate and where the polyurethane is prepared in the presence of (a) &#x3c;5 wt % of 1-methyl-2-pyrrolidinone by weight of the polyurethane, (b) at least one diluent and (c) water.

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Waalwijk, Netherlands

Ilse Casteren Van