Eastman-kodak Company

Eastman Chemical Company

Richard H Wang

Gether Irick, Jr

James G Pacifici

Joseph S Zannucci

James C Ownby

Garry L Myers

David M Pond

Max Allen Weaver

Samuel D Hilbert

Wayne P Pruett

Gordon C Newland

Daniel A Jervis

Ping P Shang

James J Krutak

Mahendra K Sharma

Chung-Ming Kuo

Richard T Bogan

William W Blount

Barbara Crawford Jackson

Michael Bellas

Bill A Eller

John W Thompson

Carl A Bryan, Jr

The present invention provides acrylic polymer-optical brightener compositions. The invention also provides acrylic polymer-optical brightener compositions further comprising near infrared absorbing compounds. The invention also provides processes for making such compositions. Still further, the invention provides methods for detecting and/or separating fluorescing and/or near infrared emitting articles from non-fluorescing and/or non-near infrared emitting articles.

Waterborne acrylic polymers containing polymeric fluorescent compounds

The invention relates to a polymer prepared from the repeat units of residues of a monomer of at least one dicarboxylic acid or ester; a monomer comprising a diol, diamine or a mixture thereof; a monomer comprising at least one sulfonate group and at least one polyester reactive group, and a monomer comprising an optical brightener agent having at least one polyester reactive group. The invention further relates to a method for preparing a polymer. The invention further relates to method of marking an article or composition with the polymer. The invention further relates to a method for detecting and separating an article contacted with the polymer. The invention further relates to an article or composition contacted with the polymer. The invention further relates to a method for enhancing the optical brightness of an article or composition, by contacting the article or composition with the polymer.

Polymers containing optical brightener compounds copolymerized therein

Disclosed is a process for the preparation of 4,4'-stilbenedicarboxylate esters by a 4-step process starting with an alkyl p-formylbenzoate and utilizing intermediate phosphite and phosphonate compounds. The steps comprise

Process for the preparation of stilbenedicarboxylate esters

Disclosed is a process for the preparation of 4,4'-stilbenedicarboxylate esters by a 3-step process utilizing p-toluic acid, an alkyl p-formylbenzoate and a trialkyl phosphite. The steps comprise

Process for the preparation of esters of stilbenedicarboxylic acid

Disclosed is an improved process for the preparation of 4,4'-bis(2-benzoxazolyl)stilbene compounds by the reaction of 4,4'-stilbenedicarboxylic acid with 2-aminophenol compounds in the presence of a tin or titanium catalyst and certain solvents.

Process for the preparation of bis (2-benzoxazolyl) stilbenes

Disclosed are a class of phenolic-hydrazide compounds of diverse structure which are useful as stabilizers for polyolefins. The phenolic-hydrazide compounds inhibit oxidative degradation of polyolefins which is attributable to heat and/or ultraviolet light and is promoted or accelerated by metals, e.g., copper, in contact with the polyolefin.

Phenolic-hydrazide compounds and polyolefin compositions stabilized

Disclosed is a class of bis(phenolic-amine)quinone compounds which are useful as stablizers for polyolefins. The bis(phenolic-amine)quinone compounds inhibit oxidative degradation of polyolefins which is attributable to heat and/or ultraviolet light and is promoted or accelerated by metals, e.g., copper, in contact with the polyolefin. The compounds also exhibit excellent thermal stability.

Bis(phenolic-amine)quinone compounds and polyolefin compositions

Disclosed are polyolefin compositions containing a phosphite compound having the formula ##STR1## wherein R.sup.1 is hydrogen, alkyl or aralkyl; R.sup.2 is hydrogen or alkyl; and R.sup.3 is alkyl or aryl.

Tris-(2-alkyl-4-alkoxyphenyl) phosphites as processing stabilizers for

Disclosed are novel bis-cyclic phosphite compounds having the formula ##STR1## wherein each R.sup.1 is independently selected from hydrogen, alkyl, aralkyl, aryl, carboxy, alkoxycarbonyl or halogen;

Bis-cyclic phosphite compounds and polymeric materials stabilized

Disclosed are novel cyclic phosphite compounds having the formula ##STR1## wherein each R.sup.1 is independently selected from hydrogen, alkyl, aralkyl, aryl, carboxy, alkoxycarbonyl or halogen;

Cyclic phosphites and stabilized polymeric compositions

Disclosed are novel cyclic phosphite compounds having the formula ##STR1## wherein R.sup.1 is hydrogen, alkyl or aralkyl; R.sup.2 is hydrogen or alkyl; R.sup.3 is alkyl or aryl; and R.sup.4 and R.sup.5 each is alkyl. Also disclosed are polyolefin compositions stabilized with one or more of the above compounds.

Dioxaphosphorinane compounds and polyolefin compositions sabilized

Disclosed are bis-benzotriazolylphenol compounds having the formula ##STR1## wherein R.sup.1 and R.sup.2 each is a 2-benzotriazolyl radical;

Bis-benzotriazolyl compounds and polymeric materials stabilized therewith

Disclosed is a three-step process for the preparation of 3-chloro-4-alkyl-7-hydroxy or alkoxycoumarin compounds starting with resorcinol or a monoalkyl ester of resorcinol and chlorinating an intermediate compound with sulfuryl chloride in the presence of acetic acid or an alkyl acetate.

Process for the preparation of coumarin compounds

Polyester compositions useful in formed articles such as beverage bottles and having condensation reacted therein at least one UV-absorbing compound of the formula ##STR1## wherein X is hydroxyl, carboxy, carbalkoxy, substituted carbalkoxy, or acyloxy; Y is cyano, carbamyl, substituted carbamyl, aryl, acyl, alkylsulfonyl, substituted alkylsulfonyl, phenylsulfonyl, or substituted phenylsulfonyl; R is selected from -alkylene-O-alkylene-, -alkylene-S-alkylene-, -alkylene-N(-SO.sub.2 alkyl)-alkylene-, straight or branched chain alkylene or such alkylene substituted with an X substituent; and R.sub.1 is hydrogen or 1-3 groups selected from alkyl, alkoxy and halogen.

Growing community of inventors

Kingsport, TN, United States of America

Richard H Wang