Minnesota Mining and Manufacturing Company

Other

Eastman-kodak Company

3m Innovative Properties Company

Randall H Helland

William Donald Ramsden

Dian E Stevenson

Mark P Kirk

George V Tiers

Roger A Mader

Jonathan P Kitchin

Kumars Sakizadeh

Terence D Spawn

Mark B Mizen

Richard A Newmark

Sylvia A Farnum

Charles W Gomez

William C Frank

Tran V Thien

Eric E Rice

Lori S Harring

Craig A Burton

Gregory J McCarney

Jonathan P, Kitchin

The invention relates to a pavement marking composition comprising ceramic fibers. The ceramic fibers are preferably randomly dispersed within a polymeric material. The polymeric material preferably comprises a substantially non-crosslinked elastomer. The pavement marking composition is preferably formed into a sheet material such as a tape.

Pavement marking composition comprising ceramic fibers

Stable antihalation materials for photographic and photothermographic elements

Certain poly(lactic acid) and poly(glycolic acid) polymers or copolymers, and certain carbonates, lactones, lactates, lactylates, lactides, glycolates, glycolylates, and glycolides have been found to stabilize thermal-dye-bleach constructions containing a dye in association with a thermally-generated-bleaching agent. Preferably, the thermally-generated-bleaching agent is a thermal-carbanion-generating agent such as a quaternary ammonium salt of a phenylsulfonylacetic acid or a thermal-nucleophile-generating agent such as an ammonium salt of a phenylsulfonylacetic acid. These materials have been found to be particularly effective when used in acutance and antihalation systems for photothermographic and photographic elements.

Stabilized thermal-dye-bleach constructions

A thermal-dye-bleach construction comprising a dye in association with a thermal dye-bleaching agent of general formula I: ##STR1## wherein: each of R.sup.a and R.sup.b are individually selected from: hydrogen, an alkyl group, an alkenyl group, a cycloalkyl group, an aralkyl group, an aryl group, and a heterocyclic group, and preferably, both R.sup.a and R.sup.b represent hydrogen;

Quaternary-ammonium phenylsulfonylacetate thermal-dye-bleach agents

Dihydroperimidine squarylium dyes have been found to be particularly effective when used in acutance and antihalation systems for photothermographic and photographic articles.

Dihydroperimidine squarylium dyes as antihalation and acutance materials

Tetra-alkylammonium phenylsulfonylacetate thermal-dye-bleach agents

A thermal-dye-bleach construction comprising a polymethine dye having a nucleus of general formula I: ##STR1## in association with a thermal-carbanion-generating agent having the general formula: ##STR2## wherein the substituents are as defined in the specification and claims.

Thermal-dye-bleach construction comprising a polymethine dye and a

A photographic element containing a thermal-dye-bleach construction includes a thermal nucleophile-generating agent in association with a polymethine dye having a nucleus of general formula (I): ##STR1##

Photographic element containing a thermal dye bleach system

A thermal-dye-bleach construction comprising a thermal nucleophile-generating agent in association with a styryl dye having a nucleus of general formula (I): ##STR1## representing the nucleus of a styryl dye in which R=methyl or ethyl group

Thermal dye bleach construction sensitive to ultraviolet radiation

A thermal-dye-bleach construction comprising a thermal nucleophile-generating agent in association with a polymethine dye having a nucleus of general formula (I): ##STR1## in which: n is 0, 1, 2 or 3;

Thermal dye bleach construction

A photothermographic recording article comprises in sequence:

Primer/antihalation coating for photothermographic constructions

A flowable, dry powder of particles of a developing composition are provided. The compositions may be either heat- or pressure-fixable and utilize from about 0.4 to 10 parts by weight of fluorinated carbon per 100 parts by weight of a thermoplastic binder and a magnetically responsive material. The fluorinated carbon has a degree of fluorination in the range of 10% to 100% and an average diameter below about 2 microns. The developing powder compositions possess improved flow humidity resistance and provide dramatically improved copy quality.

Growing community of inventors

Maplewood, MN, United States of America

Randall H Helland