Sheet materials

Details Sheet materials Sheet materials

1988-11-30

1991-11-26

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428260, 428283, 428290, 4283197, 4284231, 528 83, B32B 516, B32B 2740

Patent

active

050681435

ABSTRACT:
Tough, heat-formable sheet material and mouldable articles produced therefrom comprising a high-molecular weight synthetic resin as stiffening component wherein the stiffening component is a low-melting, highly-crystalline polyesterurethane formed by reacting polyester chains with isocyanate to obtain sufficient molecular weight to give desired properties.
Products are especially suitable for use in shoe counters and can be formulated to combined desired mechanical properties with predetermined set-up times during which mouldability is retained to enable several shoe-making operations to be carried out without the need for further heating.

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patent: 4327145 (1982-04-01), Mitani et al.
patent: 4485228 (1984-11-01), Chang et al.
patent: 4689385 (1987-08-01), MacPhee et al.

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