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Inventor: Johnson; Joseph E.
Address: Nashua, NH
No. of patents: 13
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 7649031 |
Modified pigments having improved dispersion properties |
January 19, 2010 |
| Various modified pigment products are described which are preferably capable of being dispersed in a variety of materials such as coatings, inks, toners, films, plastics, polymers, elastomers, and the like. The modified pigments are pigments having attached groups, such as polymeric |
| 7056962 |
Modified pigments having improved dispersing properties |
June 6, 2006 |
| Various modified pigment products are described which are preferably capable of being dispersed in a variety of materials such as coatings, inks, toners, films, plastics, polymers, elastomers, and the like. The modified pigments are pigments having attached groups, such as polymeric |
| 6478863 |
Modified pigments having improved dispersing properties |
November 12, 2002 |
| Various modified pigment products are described which are preferably capable of being dispersed in a variety of materials such as coatings, inks, toners, films, plastics, polymers, elastomers, and the like. The modified pigments are pigments having attached groups, such as polymeric |
| 6432194 |
Method of attaching a group to a pigment |
August 13, 2002 |
| Various modified pigment products are described which are preferably capable of being dispersed in a variety of materials such as coatings, inks, toners, films, plastics, polymers, elastomers, and the like. The modified pigments are pigments having attached groups, such as polymeric |
| 6336965 |
Modified pigments having improved dispersing properties |
January 8, 2002 |
| Various modified pigment products are described which are preferably capable of being dispersed in a variety of materials such as coatings, inks, toners, films, plastics, polymers, elastomers, and the like. The modified pigments are pigments having attached groups, such as polymeric |
| 6328894 |
Processes of purifying a dispersion and making inkjet inks |
December 11, 2001 |
| A process to purify and classify a dispersion containing stabilized particles having counterions and ions as well as free species is disclosed. The solution may comprise an aqueous media, a solvent media, or a combination of both and can include more than one type of aqueous and/or s |
| 6277183 |
Ink compositions containing metal oxides |
August 21, 2001 |
| An ink composition is disclosed which comprises at least one ink vehicle, at least one colorant and at least one metal oxide. The colorant may be a dye or a pigment, or both, and the colorant is non-reactive with the metal oxide in the ink vehicle. Also disclosed are inkjet formulations |
| 6069190 |
Ink compositions having improved latency |
May 30, 2000 |
| An ink composition is disclosed including a liquid vehicle and an ionically charged organic pigment and a hydroxylated hydrocarbon humectant having at least two hydroxyl groups. The ionically charged pigment may be black, blue, brown, cyan, green, violet, magenta, red, orange, yellow, mi |
| 5958999 |
Ink compositions and method for generating images produced therefrom |
September 28, 1999 |
| An ink composition is disclosed including a colorant and at least one polymer selected from the group consisting of polyvinylimidazole, derivatives of polyvinylimidazole, copolymers of vinylimidazole and copolymers of vinylimidazole derivatives. The present invention also relates to |
| 5922118 |
Modified colored pigments and ink jet inks, inks, and coatings containing modified colored pigme |
July 13, 1999 |
| A modified colored pigment is described which comprises colored pigment having attached at least one organic group. The organic group comprises a) at least one aromatic group or a C.sub.1 -C.sub.12 alkyl group and b) at least one ionic group, at least one ionizable group, or a mixture of |
| 5837045 |
Colored pigment and aqueous compositions containing same |
November 17, 1998 |
| A surface-modified colored pigment is disclosed which includes a colored pigment having no primary amines and at least one attached hydrophilic organic group, wherein said organic group comprises a) at least one aromatic group, and b) at least one ionic group or ionizable group, or a |
| 5803959 |
Modified carbon products and ink jet inks, inks and coatings containing modified carbon products |
September 8, 1998 |
| A modified carbon product is described which comprises carbon having attached at least one organic group. The organic group comprises a) at least one aromatic group or a C.sub.1 -C.sub.12 alkyl group and b) at least one ionic group, at least one ionizable group, or a mixture of an io |
| 5571311 |
Ink jet ink formulations containing carbon black products |
November 5, 1996 |
| There is disclosed an aqueous ink jet ink composition comprising an aqueous vehicle and a carbon black product having attached at least one organic group. The organic group comprises a) at least one aromatic group and b) at least one ionic group, at least one ionizable group, or a mixtur |
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