| Patent Number |
Title Of Patent |
Date Issued |
| 7227158 |
Stick-on self-indicating instant radiation dosimeter |
June 5, 2007 |
| A dual dosimeter system with (1) a stick-on, self-indicating, instant radiation dosimeter applied onto (2) a conventional radiation dosimeter and/or detector for monitoring high energy radiations, such as X-ray, electrons and neutrons. Radiation dosimeters, such as X-ray film and TLD |
| 6472214 |
Freeze monitoring device |
October 29, 2002 |
| A device composed of (1) a color changing indicator, (2) an optional polymeric binder, preferably having gel forming capability, and (3) an activator solvent system which induces a color change in the indicator when device is frozen, in the region of about 0 to -30.degree. C. An exam |
| 5672465 |
Polyethyleneimine binder complex films |
September 30, 1997 |
| Described is a radiation sensitive imaging film containing a heat fixable radiation sensitive element, e.g., a diacetylene, of the formula: R--C.tbd.C--C.tbd.C--R', where R and R' are, e.g., both --CH.sub.2 --O--CONH--(CH.sub.2).sub.5 CH.sub.3. After exposure to X-radiation during di |
| 5591354 |
Etching plastics with nitrosyls |
January 7, 1997 |
| There is disclosed a process of etching the surface of polymeric materials made of polymers having at least one oxidatively degradable functionality which comprises treating said surface with a solution of at least one member of the etchant group consisting of nitronium, nitrosonium ions |
| 5420000 |
Heat fixable high energy radiation imaging film |
May 30, 1995 |
| Described is a radiation sensitive imaging film containing a heat fixable radiation sensitive element, e.g., a diacetylene, of the formula: R--C.tbd.C--C.tbd.C--R', where R and R' are, e.g., both --CH.sub.2 --O--CONH--(CH.sub.2).sub.5 CH.sub.3. After exposure to X-radiation during di |
| 5254473 |
Solid state device for monitoring integral values of time and temperature of storage of perishab |
October 19, 1993 |
| An indicator composition and process capable of changing color in relationship to its exposure to a temperature above and below a base line temperature and to the time of said exposure, for monitoring the time-temperature history of a substrate, depositable as a layer on said substra |
| 5049230 |
Single step pre-swelling and etching of plastics for plating |
September 17, 1991 |
| A one-step process for treating polymer surfaces prior to electroless deposition is disclosed. Polymer parts are dipped in a solution containing a good solvent for the polymer, a substantial non-solvent for the polymer, an etchant and, where one of these is immiscible with one or more of |
| 5045283 |
Moving boundary device for monitoring shelf-life of a perishable product |
September 3, 1991 |
| A moving boundary device for monitoring the time-temperature storage history, i.e. shelf life, of perishable products. The device is constructed of an activator tape, containing an activator composition in an activator matrix, an indicating tape, containing an indicating composition |
| 5015329 |
Pre-swelling and etching of plastics for plating |
May 14, 1991 |
| Formulations are provided for pre-swelling and etching of functionalized polymers, such as polycarbonate in two or three steps. The etched surface can then be plated with electroless nickel or copper with satisfactory adhesion of the plated metals. Swelling agents make polymer molecules |
| 4941940 |
Pre-swelling and etching of plastics for plating |
July 17, 1990 |
| Formulations are provided for pre-swelling and etching of functionalized polymers, such as polycarbonate in one, two and three steps. The etched surface can then be plated with electroless nickel or copper with satisfactory adhesion of the plated metals. Swelling agents make polymer |
| 4699997 |
Metal salts of polyacetylenic compounds and uses thereof |
October 13, 1987 |
| Water-soluble polyacetylenic alkali metal salts from monomers and polymers of carboxymethyl urethanes of di-, tetra-, and hexayne diols, or from the corresponding diacids; useful in thermal and irradiation exposure indicators and/or in detection and/or removal of nonalkali metal ions |
| 4646674 |
Indicator device using metal salts of polyacetylenic compounds |
March 3, 1987 |
| Water-soluble polyacetylenic alkali metal salts from monomers and polymers of carboxymethyl urethanes of di-, tetra-, and hexayne diols, or from the corresponding diacids; useful in thermal and irradiation exposure indicators and/or in detection and/or removal of nonalkali metal ions |
| 4550150 |
Coloration of acetylenic monomers by gases |
October 29, 1985 |
| Process of detecting the presence of certain gases, including certain pollutants, in small concentrations; or to cause partial polymerization of certain polyacetylene compositions for use in time/temperature history indicators or radiation dosage indicators. The process involves contacti |
| 4505786 |
Pretreatment of plastic materials for metal plating |
March 19, 1985 |
| This invention relates to a process for conditioning the surfaces of natural and synthetic plastic materials for electroless plating of a metal coating thereon by exposing such materials to an atmosphere comprising an effective amount of ozone and thereafter contacting said exposed mater |
| 4452995 |
Dialkoxycarbonylmethyleneurethane diynes |
June 5, 1984 |
| Polydiacetylene gel compositions, comprised of a polydiacetylene and a gel-forming liquid therefor, are described which undergo a change in color and in physical state to a solution when heated to a predetermined temperature. The gel compositions exhibit hysteresis temperature charac |
| 4439346 |
Polydiacetylene gels |
March 27, 1984 |
| Polydiacetylene gel compositions, comprised of a polydiacetylene and a gel-forming liquid therefor, are described which undergo a change in color and in physical state to a solution when heated to a predetermined temperature. The gel compositions exhibit hysteresis temperature charac |
| 4422907 |
Pretreatment of plastic materials for metal plating |
December 27, 1983 |
| This invention relates to a process for conditioning the surfaces of natural and synthetic plastic materials for electroless plating of a metal coating thereon by exposing such materials to an atmosphere comprising an effective amount of ozone and thereafter contacting said exposed mater |
| 4389217 |
Integrated time-temperature or radiation-dosage history recording device |
June 21, 1983 |
| A recording device is described, useful as an integrated time-temperature or radiation-dosage history indicator. The device contains a substrate having deposited thereon at least two indicating units, one being unreacted and representing zero time of exposure and the other unit being |
| 4384980 |
Co-crystallized acetylenic compounds |
May 24, 1983 |
| A composition is described comprising at least two co-crystallized acetylenic compounds, of different chemical structures, each containing at least one --C.tbd.C--C.tbd.C-- group and substituents selected from the group consisting of sulfonate, urethane and alcohol radicals, at least one |
| 4373032 |
Metal salts of polyacetylenic compounds and uses thereof as ion exchange and thermochromic polym |
February 8, 1983 |
| Water-soluble polyacetylenic alkali metal salts from monomers and polymers of carboxymethyl urethanes of di-, tetra-, and hexayne diols, or from the corresponding diacids; useful in thermal and irradiation exposure indicators and/or in detection and/or removal of nonalkali metal ions |
| 4339951 |
Tempeature measurement and display of indicia using thermochromic polyacetylenes |
July 20, 1982 |
| Certain polyacetylenes exhibit reversible color changes at transition temperatures in the range -180.degree. to 220.degree. C., wherein the thermochromic cycles can be repeated many times with no apparent degradation and little change in spectroscopic properties.These thermochromic polya |
| 4339240 |
Color changing polyacetylenic compounds |
July 13, 1982 |
| Acetylenic compounds such as 2,6-hexadiyn-1,6-diol-bis(p-phenylazophenylsulfonate) having a conjugated acetylenic portion capable of polymerization on exposure to actinic radiation and thermal annealing and a chromophoric portion. The color of the chromophoric portion provides a back |
| 4328259 |
Process of printing by impact and for marking areas where impact or pressure is applied |
May 4, 1982 |
| A printing or reproducing or pressure-detecting process comprising producing on a substrate a surface consisting essentially of a colored acetylenic composition of partially polymerized monomer which has at least two triple bonds which are conjugated, and having certain substituents in |
| 4276190 |
Process for monitoring time-temperature histories of perishables utilizing inactive form of diac |
June 30, 1981 |
| An improved process and device are described, for monitoring time-temperature histories of perishable articles, utilizing an inactive form of a diacetylene compound, incapable of undergoing a color change upon thermal annealing, but capable of conversion to an active form upon contac |
| 4242440 |
Thermochromic polyacetylenes used in laser beam recording method |
December 30, 1980 |
| Certain polyacetylenes exhibit reversible color changes at transition temperatures in the range -180.degree. to 220.degree. C., wherein the thermochromic cycles can be repeated many times with no apparent degradation and little change in spectroscopic properties.These thermochromic polya |
| 4238352 |
Co-polymerized acetylenic compositions |
December 9, 1980 |
| A composition is described comprising at least two co-crystallized acetylenic compounds, of different chemical structures, each containing at least one --C.tbd.C-C.tbd.C-- group and substituents selected from the group consisting of sulfonate, urethane and alcohol radicals, at least one |
| 4235108 |
Device for measuring temperature using co-crystallized acetylenic compositions |
November 25, 1980 |
| A composition is described comprising at least two co-crystallized acetylenic compounds, of different chemical structures, each containing at least one --C.tbd.C--C.tbd.C-- group and substituents selected from the group consisting of sulfonate, urethane and alcohol radicals, at least one |
| 4228126 |
Diacetylene time-temperature indicators |
October 14, 1980 |
| An improved recording device is described, useful for measuring the integrated time-temperature or integrated radiation-dosage history of an article, comprising a substrate onto which an acetylenic compound, containing at least two conjugated C.tbd.C groups, in an inactive form, is d |
| 4215208 |
Thermochromic polyacetylenes containing urethane groups |
July 29, 1980 |
| Certain polyacetylenes exhibit reversible color changes at transition temperatures in the range -180.degree. to 220.degree. C., wherein the thermochromic cycles can be repeated many times with no apparent degradation and little change in spectroscopic properties.These thermochromic polya |
| 4208186 |
Process for monitoring time-temperature histories of perishables utilizing inactive form of diac |
June 17, 1980 |
| An improved process and device are described, for monitoring time-temperature histories of perishable articles, utilizing an inactive form of a diacetylene compound, incapable of undergoing a color change upon thermal annealing, but capable of conversion to an active form upon contac |
| 4195058 |
Vapor permeation time-temperature indicator |
March 25, 1980 |
| An improved time-temperature indicator (t-T indicator) is described which is useful for monitoring the shelf lives of various perishable articles. The device is constructed of a vapor-permeable barrier positioned between a vapor and a liquid indicator, both housed in a vapor-impermeable |
| 4195057 |
Vapor-phase moving-boundary indicator |
March 25, 1980 |
| An improved vapor-phase moving-boundary indicator is described, which is useful for monitoring the time-temperature histories of perishables. The device functions by allowing a vapor to permeate through a porous substrate contacted with a solution of a polydiacetylene indicating comp |
| 4195056 |
Vapor permeation time-temperature indicator |
March 25, 1980 |
| A time-temperature indicator (t-T indicator) is described which is useful for monitoring the shelf lives of various perishable articles. The device is constructed of a vapor-permeable barrier positioned between a vapor and an indicator, both housed in a vapor-impermeable container. The d |
| 4195055 |
Vapor-phase moving-boundary indicator |
March 25, 1980 |
| A vapor-phase moving-boundary indicator, is described, which is useful for monitoring the time-temperature histories of perishable articles. The device functions by allowing a vapor to permeate through a porous substrate coated with an indicating solid which undergoes a color change |
| 4189399 |
Co-crystallized acetylenic compounds |
February 19, 1980 |
| A composition is described comprising at least two co-crystallized acetylenic compounds, of different chemical structures, each containing at least one --C.tbd.C--C.tbd.C-- group and substituents selected from the group consisting of sulfonate, urethane and alcohol radicals, at least one |
| 4164458 |
Production of radiation crosslinked polymeric compositions using diacetylenes |
August 14, 1979 |
| Crosslinked polymeric compositions, useful as electrical insulators, heat shrinkable packaging, and lightweight foam plastics, are described. The crosslinked polymeric compositions are produced by admixing a diacetylene monomer, oligomer, polymer or mixture thereof, wherein the monomer h |
| 3999946 |
Time-temperature history indicators |
December 28, 1976 |
| Compositions containing at least two conjugated acetylene groups (-C.tbd.C-C.tbd.C-) are suitable as integral time-temperature history indicators. These compositions exhibit sequences of irreversible color changes at combinations of times and temperatures specific to each composition |
