Thermoplastic supportive structure
Abstract
Abstract THIS COMPOSITE SUPPORTIVE STRUCTURE COMPRISES A WEB OF OPEN-CELL, RESILIENT NON-THERMOPLASTIC FOAM, SUCH AS POLYURETHANE FOAM, CONTAINING WITHIN THE SAME A MATRIX OF FOAM-LIKE THERMOPLASTIC MATERIAL, SUCH AS TRANS-1,4POLYISOPRANE, WHICH IS COHESIVE AND SUFFICIENTLY PLASTIC AT ELEVATED EMPERATURES TO BE READILY MOLDABLE AND YET CRYSTALLIZABLE INTO A RIGID STRUCTURE AT ROOM TEMPERATURE. THE FOAM-LIKE THERMOPLASTICMATRIX IS PRESENT IN SUFFICIENT QUANTITY AND DISTRIBUTED THROUGHOUT THE CELLULAR STRUCTURE OF THE WEB SO AS TO SUBSTANTIALLY IMPART ITS MOLDABILITY AND RIGIDITY CHARACTERISTICS THERETO. HE COMPOSITE FOAM-WITHIN-A-FOAM STRUCTURE IS ADVANTAGEOUSLY EMPLOYED, PREFERABLY IN PERFORATED FORM, AS AN ORTHOPEDIC WRAP WHICH, UPON HEATING, CAN BE READILY MOLDED TO AN INJURED LIMB AND THEREAFTER ALLOWED TO CRYSTALLIZED AND HARDEN TO FORM A SMOOTH, RIGID SUPPORTIVE AND PROTECTIVE CAST.
Inventors
- 👤 G Buese
Bibliographic Details
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