Injection moulding process and apparatus for making articles from two components
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United States of America Patent
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Oct 15, 2002
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N/A
app pub date -
Aug 12, 1999
filing date -
Feb 14, 1997
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Abstract
A process for making a molded article of two components e.g., plastic material and elastomer, in which internal cores are used to form a hollow toothbrush body, and elastomer is injected to form surface features. The toothbrush body can be made bulky in shape but light by virtue of being hollow.
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