Laminate comprising a polyurethane layer

Details Laminate comprising a polyurethane layer Laminate comprising a polyurethane layer

1997-08-13

1998-10-13

Weisberger, Richard

Fabric (woven, knitted, or nonwoven textile or cloth, etc.)

Nonwoven fabric

Including particulate material other than strand or fiber...

442 43, 442 85, 528 51, 528 56, 528 58, 528 65, 528 83, 528440, 528453, D21H 1924, D06N 314, B32B 900

Patent

active

058211802

ABSTRACT:
A laminate comprising a layer formed by melt molding a thermoplastic polyurethane and a fibrous base layer, a film or sheet melt molded from the thermoplastic polyurethane, and a thermoplastic polyurethane composition comprising the thermoplastic polyurethane and tin compound in an amount of 0.3 to 15 ppm (in terms of tin atom) based on the thermoplastic polyurethane; the thermoplastic polyurethane being a thermoplastic polyurethane obtained from a polymeric diol (a) having a number average molecular weight of 1,500 to 4,000, an organic diisocyanate (b) and a chain extender (c) and having an inherent viscosity of at least 0.9 dl/g and a retention of long-chain hard segments when heat melted of at least 80%, the polymeric diol (a) having a crystallization enthalpy (.DELTA.H) of not more than 70 J/g and having low molecular diol units comprising at least 30 mole % of 1,9-nonanediol units. These articles are excellent in resistance to abrasion melting and abrasion and resistance to bleed/whitening and also good in tensile strength and like mechanical properties, durability and cold resistance, as well as softness and flexibility, so that they can be used for leather-like products and other various purposes.

REFERENCES:
patent: 5310852 (1994-05-01), Hirai et al.

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