Microporous ink-jet recording elements

Patent 5605750 Issued on February 25, 1997. Estimated Expiration Date:

December 29, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

Recording sheet
Patent #: 5104730
Issued on: 04/14/1992
Inventor: Misuda, et al.

Recording sheet for an ink jet printer
Patent #: 5264275
Issued on: 11/23/1993
Inventor: Misuda, et al.

Electrostatic image transfer recording sheet
Patent #: 5354634
Issued on: 10/11/1994
Inventor: Misuda, et al.

Recording sheet and process for its production Patent #: 5463178
Issued on: 10/31/1995
Inventor: Suzuki, et al.

Inventors

Application

No. 580698 filed on 12/29/1995

US Classes:

428/32.17, Microporous synthetic resin support (e.g., microcracked, microembossed, etc.)347/105, Receiving medium428/331, Silicic material428/500, Of addition polymer from unsaturated monomers428/532Of carbohydrate

Examiners

Primary: Schwartz, Pamela R.

Attorney, Agent or Firm

Everett; John R.

Foreign Patent References

0507255A1 EP. 10/12/1992
0634287A1 EP. 01/12/1995
2276670 JP. 11/12/1990
3143678 JP. 06/12/1991
3215082 JP. 09/12/1991
4115984 JP. 04/12/1992
4263982 JP. 09/12/1992
4263983 JP. 09/12/1992
4320877 JP. 11/12/1992
5032037 JP. 02/12/1993
5024335 JP. 02/12/1993
5024336 JP. 02/12/1993
6262844 JP. 09/12/1994
6270530 JP. 09/12/1994
6297831 JP. 10/12/1994
95002430 JP. 01/12/1995

International Class

B41M 005/00

Abstract

An opaque image-recording element for an ink-jet printer which comprises an opaque substrate having on at least one surface thereof a lower layer of a solvent-absorbing microporous material which comprises:(a) a matrix of substantially water-insoluble thermoplastic organic polymer;(b) finely divided substantially water-insoluble filler particles, of which at least 50 percent by weight are siliceous particles, the filler particles being distributed throughout the matrix and constituting from 40 to 90 percent by weight of the microporous material;(c) a network of interconnecting pores communicating substantially throughout the microporous material, the pores constituting from 35 to 95 percent by volume of the microporous material, andan upper image-forming layer of porous, pseudo-boehmite having an average pore radius of from 10 to 80 Å.