| Patent Number |
Title Of Patent |
Date Issued |
| 5672434 |
Mulching composite |
September 30, 1997 |
| A novel agricultural mulch is disclosed comprising a paper substrate having coated thereon on the top and bottom side film forming latexes resistant to water permeability. The superior paper mulch according to the invention is degradable but possesses most of the beneficial aspects of |
| 5157012 |
Di[bis-(indolyl)ethylenyl]tetrahalophthalide record materials |
October 20, 1992 |
| Pressure-sensitive and heat-sensitive record materials are described comprising a substrate, an acidic developer and chromogenic di-[bis-(indolyl) ethylenyl]tetrahalophthalides of the formula ##STR1## wherein each X.sup.1, S.sup.2, X.sup.3, and X.sup.4 is independently selected f |
| 5124307 |
Thermally-responsive record material |
June 23, 1992 |
| A novel thermally-responsive record material is disclosed comprising a support having provided thereon in substantially contiguous relationship an electron donating dye precursor and a fluorene bisphenol of the formula ##STR1## wherein each R is independently selected from hydrogen a |
| 5030281 |
Record material |
July 9, 1991 |
| A color developer material comprising a homogeneous mixture of a color developer containing a certain weight percent phenolic group, divalent zinc, and an aromatic carboxylate component possessing certain properties. These mixtures are particularly useful as color developer materials for |
| 4910183 |
Fluoran derivatives and their use in recording materials |
March 20, 1990 |
| The invention relates to novel fluoran compounds of the general formula ##STR1## wherein R.sub.1 and R.sub.2, each independently of the other, are lower alkyl;A is ##STR2## or a pyrrolidinyl, piperidino, morpholino or piperazino radical; and R.sub.3 and R.sub.4, each indepen |
| 4895827 |
Thermally-responsive record material |
January 23, 1990 |
| An improved thermally-responsive record material having improved image retention is disclosed. The invention is an improved thermally-responsive record member, typically a sheet material, bearing a thermally-responsive color-forming composition comprising a chromogenic material, an acidi |
| 4880766 |
Record material |
November 14, 1989 |
| A color developer material comprising a homogeneous mixture of a color developer containing a certain weight percent phenolic group, divalent zinc, and an aromatic carboxylate component possessing certain properties. These mixtures are particularly useful as color developer materials for |
| 4870047 |
Thermally-responsive record material |
September 26, 1989 |
| A novel thermally-responsive record material is disclosed which is resistant to image fade from one or more common external challenges including contact with common fats or oils, skin oil, carbonless solvents, plasticizers or high heat and humidity, such as in a 90.degree.F./90% humi |
| 4837210 |
Fluoran derivatives and their use in recording materials |
June 6, 1989 |
| The invention relates to novel fluoran compounds of the general formula ##STR1## wherein R.sub.1 and R.sub.2, each independently of the other, are lower alkyl;A is ##STR2## or a pyrrolidinyl, piperidino, morpholino or piperazino radical; and R.sub.3 and R.sub.4, each indepen |
| 4820683 |
Thermally-responsive record material |
April 11, 1989 |
| An improved thermally-responsive record material having improved image retention is disclosed. The invention is an improved thermally-responsive record member, typically a sheet material, bearing a thermally-responsive color-forming composition comprising a chromogenic material, an acidi |
| 4586061 |
Thermally-responsive record material |
April 29, 1986 |
| A thermally-sensitive color-forming composition is disclosed which comprises chromogenic material and certain acidic developer material. Record material comprising this color-forming composition exhibits improved color-forming efficiency and/or image density. |
| 4535347 |
Thermally-responsive record material |
August 13, 1985 |
| A thermally-sensitive color-forming composition is disclosed which comprises chromogenic material, acidic developer material and a hydroxyanilide compound. Record material comprising this color-forming composition exhibits an absence of image bloom and improved color-forming efficien |
| 4520379 |
Thermally-responsive record material |
May 28, 1985 |
| A thermally-sensitive color-forming composition is disclosed which comprises chromogenic material and certain acidic developer material. Record material comprising this color-forming composition exhibits substantially improved performance in certain Group 3 facsimile equipment. |
| 4470057 |
Thermally-responsive record material |
September 4, 1984 |
| A thermally-sensitive color-forming composition is disclosed which comprises chromogenic material, acidic developer material and a phenylhydroxynaphthoate compound. Record material comprising this color-forming composition exhibits improved color-forming efficiency and/or image densi |
| 4230514 |
Process for making form sets from carbonless copy paper sheets |
October 28, 1980 |
| A process for separating a collated stack of carbonless copy paper sheets into form sets, which comprises pretreating the edge of the stack of sheets to be padded with a non-aqueous material, drying, applying an adhesive composition, drying and separating the unit sets. |
| 4217162 |
Process for making form sets from carbonless copy paper sheets |
August 12, 1980 |
| A process for separating a collated stack of carbonless copy paper sheets into form sets, which comprises pretreating the edge of the stack of sheets to be padded with water or an aqueous solution or dispersion, drying, applying an adhesive composition, drying and separating the unit |
| 4116973 |
Thermal sensitive materials |
September 26, 1978 |
| Thermal sensitive indigo compounds are disclosed.A thermal sensitive sheet material is disclosed utilizing dehydroindigo di(alkyl acylates) as a color producing component. The material can be a copy medium and it can be transparent or non-transparent.The indigo compounds are substantially co |
| 3978270 |
Thermal sensitive materials |
August 31, 1976 |
| Thermal sensitive indigo compounds are disclosed.A thermal sensitive sheet material is disclosed utilizing dehydroindigo di(alkyl acylates) as a color producing component. The material can be a copy medium and it can be transparent or non-transparent.The indigo compounds are substantially co |
