Injection blow molded nursing bottle of polyethersulfone
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 11, 2003
Grant Date -
Aug 15, 2002
app pub date -
Dec 18, 2000
filing date -
Jul 15, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An object of the present invention is to improve shock resistance of nursing bottles formed of a PES resin so as to provide them with such a sufficient falling impact strength that they can be used pleasantly and safely. The injection-blow-molded PES nursing bottle of the present invention has a gate flash (6) at a central portion of a bottom (5), the flash being generated when the resin is previously injected to prepare a parison. The central bottom portion (5) is raised to be of a convex shape to bulge up towards a mouth of the bottle. A height `h` of such a raised bottom portion is from 9% to 20% of an inner diameter `R` that is possessed by a floor-engaging rim of the bottom, the rim being generally circular in a bottom plan view.
First Claim
Family
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Cited Art Landscape
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