Back to results
US 8,011,778 B2Granted
Sealant for ink jet head, ink jet head, and ink jet recording apparatus
AssigneeCanon Kabushiki Kaisha
InventorsKouji Harada, Isao Imamura
Life of this patent
Estimating the term…
Abstract
A sealant for an ink jet head includes at least an oxetane compound having a biphenyl skeleton, an alicyclic epoxy compound, and a cationic polymerization initiator.
Claims9
A sealant for an ink jet head comprising a composition containing:
- an oxetane compound represented by general formula (I);
- an alicyclic epoxy compound;
- and
- a cationic polymerization initiator:
- wherein R1 represents an alkyl group, R2 represents —(CH2)p— (wherein p is 0 or 1), and R3 represents a hydrogen atom or an alkyl group.
2 more elements
An ink jet head comprising:
- a discharge element substrate including a discharge orifice discharging an ink and an energy generating element generating energy used for discharging the ink from the discharge orifice;
- an electric connection portion for electrically connecting the discharge element substrate;
- and
- a sealing member for coating the electric connection portion,
- wherein the sealing member is composed of a cured product of a composition containing at least an oxetane compound represented by general formula (I), an alicyclic epoxy compound, and a cationic polymerization initiator:
- wherein R1 represents an alkyl group, R2 represents —(CH2)— (wherein p is 0 or 1), and R3 represents a hydrogen atom or an alkyl group.
3 more elements
A recording apparatus comprising:
- an ink jet head for discharging an ink so that the ink discharged from the ink jet head is applied to a recording medium to perform recording, the ink jet head including:
- a discharge element substrate including a discharge orifice discharging an ink and an energy generating element generating energy used for discharging the ink from the discharge orifice;
- an electric connection portion for electrically connecting the discharge element substrate, the electric connection portion being opposed to the recording medium;
- and
- a sealing member for coating the electric connection portion,
- wherein the sealing member is composed of a cured product of a composition containing at least an oxetane compound represented by general formula (I), an alicyclic epoxy compound, and a cationic polymerization initiator:
- wherein R1 represents an alkyl group, R2 represents —(CH2)p— (wherein p is 0 or 1), and R3 represents a hydrogen atom or an alkyl group.
4 more elements
Dependencies are inferred from the claim text.