US 4,613,527 A · PUR-coating compositions which are cross-linkable under heat, a process for their production and their use thereof as an adhesive coat for textiles

Abstract

The present invention relates to coating compositions based on polyurethane polymers and melamine- and/or urea-formaldehyde resins as cross-linking agents. At least a portion of the chain lengthening agent used to prepare the polyurethane polymers is based on 2,2-bis(hydroxymethyl)propionic acid amide. By using this particular chain lengthening agent, the coating composition can be applied to textile substrates by the direct or reverse coating process and curved at lower temperatures. The present invention additionally relates to the preparation of these coating compositions and to their use as the adhesive coat in preparing coated textile substrates by the direct or reverse coating process.

Claims9

Dependent claims

A coating composition which is cross-linkable by heating which comprises a mixture of

(A) a substantially linear polyurethane polymer which is based on a relatively high molecular weight polyol, a diisocyanate and a chain lengthening agent, and additionally contains 2,2-bis(hydroxymethyl)-propionic acid amide in a quantity of about 0.5 to 10% by weight, based on the weight of said polyurethane polymer, as the sole chain lengthening agent or a portion thereof, and
(B) melamine- and/or urea-formaldehyde resins.

Dependencies are inferred from the claim text.

PUR-coating compositions which are cross-linkable under heat, a process for their production and their use thereof as an adhesive coat for textiles

Life of this patent

PUR-coating compositions which are cross-linkable under heat, a process for their production and their use thereof as an adhesive coat for textiles

Life of this patent

Abstract

Claims9