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Patent Searching and Data

Document Type and Number:
Japanese Patent JP3173776
Kind Code:
Sports or leisure ball comprising an outer layer (1, 10, 20) made of foam with an integral skin, of polyurethane or of polyurethane- urea, having a total thickness approximately from 1.5 to 5 mm, this outer layer comprising a microcellular core (4, 14, 24) and a compact surface skin (3, 13, 23) having a thickness approximately from 0.5 to 2 mm; the core structure advantageously comprises pores (8, 18, 28) most of which communicate very little and are preferably closed. The invention makes it possible to produce balls of various types, for example of the hand-sewn type, of the laminated type and of the overmoulded type. The invention also relates to a process for obtaining such balls.

Jean-Marie Sontag
Jack kasper
Application Number:
Publication Date:
June 04, 2001
Filing Date:
March 03, 1990
Export Citation:
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Adida salagan france
International Classes:
A63B39/00; A63B39/06; A63B41/00; A63B41/08; A63B37/00; A63B45/00; B29C43/14; B29C43/18; B29C44/12; B29C49/48; B29C70/66; B29C70/70; B29D22/04; B32B27/40; C08G18/40; B29L31/54; C08G101/00; (IPC1-7): A63B41/00; B29C49/48; B32B27/40; B29L31:54
Foreign References:
Attorney, Agent or Firm:
Akihide Sugimura (1 outside)