Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – By mechanically introducing gas into material
Patent
1998-10-22
2000-01-04
Kuhns, Allan R.
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
By mechanically introducing gas into material
264234, 264345, B29C 4402
Patent
active
060106514
ABSTRACT:
A latex leather sheet fabrication method includes the steps of (a) pre-heating natural latex to about 30.degree. C.; (b) flow mixing pre-heated natural latex with a chemical solution containing oleic acid, sulfur and zinc oxide powder by flow mixing for about 1.about.3 hours; (c) mixing the latex mixture with forced air into a foamed viscous liquid; (d) shape-forming the foamed viscous liquid into a hardened foamed sheet material; (e) heating and drying the foamed sheet material into a foamed leather sheet; and (f) air cooling the finished latex leather sheet.
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Bushnell Esq. Robert E.
Kuhns Allan R.
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