Method for making continuous and closed hollow bodies, hollow bo

Details Method for making continuous and closed hollow bodies, hollow bo Method for making continuous and closed hollow bodies, hollow bo

1986-07-24

1988-02-02

Tufariello, T. M.

Chemistry: electrical and wave energy

Processes and products

C25D 102

Patent

active

047227702

ABSTRACT:
A method for manufacturing continuous, closed and hollow bodies which comprises (a) using cores (25) which are soluble in a solvent, (b) depositing on each core a coating (3) with a suitable mechanical strength to be self-supporting and having open pores to pass a solvent, and (c) placing the cores so coated into a solvent for dissolving the cores; the method of the invention may be implemented in bulk parts, in an economical manner, and allows making hollow bodies, in particular hollow balls, each comprising a continuous skin devoid of any macroscopic perforation and of a kind and with a thickness which are easily adjusted in relation to the desired properties.

REFERENCES:
patent: 4464231 (1984-08-01), Little
Chemical Abstracts, vol. 101, 1984, p. 470, Nos. 62625v, 62626w, Columbus, Ohio, U.S.; & JP-A-59 35 695 (Sanyo Electric Co., Ltd.) 27-02-1984-JPA 59-35 696 (Sanyo Electric Co., Ltd.) 27-02-1984.

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