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US 6,270,209 B1Granted
Ink tank
AssigneeCanon Kabushiki Kaisha
InventorAkihiko Shimomura
Life of this patent
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Abstract
An ink tank for a recording device that has good transparency and with which an ink cartridge is mounted provides good printing without causing any printing disturbances even when the ink cartridge is placed under various environmental conditions. The ink tank is molded from a polypropylene or polyethylene composition containing hydrotalcite (basic aluminum magnesium carbonate) as a neutralization agent and certain sorbitol derivatives as a nucleating agent.
Claims9
An ink tank for a recording device molded from a composition comprising:
- a) a polypropylene or polyethylene resin;
- (b) hydrotalcite (basic aluminum magnesium carbonate) as a neutralization agent;
- and (c) sorbitol derivatives as a nucleating agent for said polypropylene or polyethylene, said sorbitol derivatives shown by general formula (1)
- wherein R1, identical or different, each represents an alkyl groups having 1-10 carbon atoms, and/or general formula (2)
- wherein R2, identical or different, each represents an alkyl group having 2-10 carbon atoms.
2 more elements
Dependencies are inferred from the claim text.