Eastman-kodak Company

Eastman Chemical Company

William Ronald Darnell

Winston J Jackson, Jr

Jean Carroll Fleischer

Theodore R Walker

Wesley Raymond Hale

David L Murray

Timothy Edward Long

Allan S Jones

Richard L McConnell

John C Morris

Kab Sik Seo

Gordon C Newland

James Rodney Bradley

Douglas Weldon Carico, Jr

Sara Stanley Wells

Abraham J Cox

The invention pertains to methods for preparing modified condensation polymers wherein the steps include: (a) preparing a polymer colloid system comprising a first polymer dispersed in a liquid continuous phase; (b) introducing the polymer colloid system into a glycolysis reaction medium prior to or during a glycolysis reaction wherein the glycolysis reaction medium comprises a polyester, copolyester, polyesteramide, polycarbonate or a mixture thereof; wherein the glycolysis reaction medium optionally comprises a diol component; and polymerizing the fully or partially glycolyzed polyester, copolyester, polyesteramide, polycarbonate or mixture thereof, thereby providing a condensation polymer/first polymer matrix.

Methods of making modified condensation polymers

The invention provides a method of making an amide-type polymer/first polymer blend comprising the steps of: a) preparing a polymer colloid system comprising a first polymer dispersed in a liquid continuous phase; b) introducing the polymer colloid system into an amide-type polymerization reaction medium prior to or during the reaction, wherein the reaction medium comprises 1) a diacid component and a diamine component, an oligomer of a diacid and a diamine component, or a mixture thereof; and c) polymerizing the components of b)1, thereby providing an amide-type polymer/first polymer blend. Polymer blends made by the methods herein are also provided.

Polyamide/emulsion polymer blends

The invention provides a method of making an amide-type polymer/silicone polymer blend comprising the steps of preparing a silicone polymer emulsion comprising a silicone polymer dispersed in a liquid continuous phase; introducing the silicone polymer emulsion into an amide-type polymerization reaction medium prior to or during the reaction, wherein the reaction medium comprises 1) a diacid component and a diamine component, an oligomer of a diacid and a diamine component, or a mixture thereof; and polymerizing the components of b)1, thereby providing an amide-type polymer/silicone polymer blend. A amide-type polymer/silicone polymer blends are also provided.

Amide-type polymer/silicone polymer blends and processes of making the same

Disclosed are novel compositions containing an LCP and one or more aromatic phosphonites. Also disclosed is a novel process for preparing LCPs in the presence of one or more aromatic phosphonites. The process enables the preparation of LCPs in a more controlled manner so that the LCPs have excellent thermal/oxidative stability. The LCPs are useful where the combination of good mechanical properties, excellent thermal resistance properties, and excellent thermal stability are desired, such as in electrical/electronic applications and electrical connectors.

Liquid crystalline polyesters compositions containing aromatic phosphonites and a process for the preparation thereof

Disclosed is a select class of liquid crystalline polyesters and molding compositions comprising the polyesters and glass fiber. The liquid crystalline polyesters consist essentially of (1) diacid residues consisting essentially of (i) cyclohexanedicarboxylic acid residues and (ii) other diacid residues selected from terephthalic acid residues, 2,6-naphthalenedicarboxylic acid residues, or a mixture thereof; (2) diol residues consisting essentially of hydroquinone residues, 4,4&prime;-biphenol residues or a mixture thereof; and, optionally, (3) p-hydroxybenzoic acid residues. In the above definition, the moles of diol residues are equal to the moles of diacid residues and the total of the (1), (2) and (3) mole percentages is equal to 100. The liquid crystalline polyesters have melting points determined by differential scanning calorimetry equal to or less than 360&deg; C.

Liquid crystalline polyesters having a surprisingly good combination of a low melting point, a high heat distortion temperature, a low melt viscosity, and a high tensile elongation

This invention relates to a polycarbonate represented by the formula (I):

Process for preparing poly (2,2,4,4-tetramethyl-1,3-cyclobutylene carbonate)

The invention relates to a process of deactivating a polycarbonate, by mixing a polycarbonate having an active alkali metal catalyst residue therein with a deactivator represented of a formula of:

Process for deactivating alkali metal catalyst residues in poly(2,2,4,4-tetramethyl-1,3-cyclobutylene carbonate residues

The invention relates to a process of deactivating a polycarbonate, by mixing a polycarbonate containing an active alkali metal catalyst residue with a carboxylic acid, but not removing the deactivated catalyst. The invention further relates to a process of deactivating a polycarbonate, by mixing a solid state polycarbonate containing an active alkali metal catalyst and a carboxylic acid, followed by heating the mixture of step at a temperature to melt the mixture and deactivate the alkali metal catalyst, wherein the deactivated catalyst is not removed. The invention further relates to a process of making a polycarbonate, by polymerizing a polycarbonate in the presence of an alkali metal catalyst to produce an activated polycarbonate, and mixing the activated polycarbonate with a carboxylic acid to deactivate the alkali metal catalyst and form a polycarbonate, wherein the deactivated alkali metal catalyst is not removed from the polycarbonate. The invention further relates to products made by the processes described above. The invention further relates to polycarbonates containing an alkali metal carboxylate therein.

Process for deactivating polycarbonate catalyst residues

The invention relates to a method for preparing a polycarbonate, by mixing (i) 2,2,4,4-tetramethyl-1,3-cyclobutanediol, (ii) dimethyl carbonate, and (iii) a basic catalyst, and heating components (i)-(iii) to produce an intermediate, followed by heating the intermediate at a temperature of less than or equal to 300.degree. C. to produce the polycarbonate. The invention further relates to the polycarbonates produced by the methods of the present invention.

Process for preparing poly (2,2,4,4-tetramethyl-1,3-cyclobutylene

Disclosed is a select class of liquid crystalline polyesters and molding compositions comprising the polyesters and glass fiber. The liquid crystalline polyesters consist essentially of (1) diacid residues consisting essentially of (i) cyclohexanedicarboxylic acid residues and (ii) other diacid residues selected from terephthalic acid residues, 2,6-naphthalene-dicarboxylic acid residues, or a mixture thereof; (2) diol residues consisting essentially of hydroquinone residues, 4,4'-biphenol residues or a mixture thereof; and, optionally, (3) p-hydroxybenzoic acid residues. In the above definition, the moles of diol residues are equal to the moles of diacid residues and the total of the (1), (2) and (3) mole percentages is equal to 100. The liquid crystalline polyesters have melting points determined by differential scanning calorimetry equal to or less than 360.degree. C.

Liquid crystalline polyesters having a surprisingly good combination of

The invention relates to a method for preparing a polycarbonate, by mixing a compound having the structure I: ##STR1## and a basic catalyst, and heating the mixture to produce the polycarbonate. The invention also relates to poly(2,2,4,4-tetramethyl-1,3-cyclobutylene carbonate) with an inherent viscosity of at least 0.7 dL/g. The invention also relates to an article made from the polycarbonate and a blend containing poly(2,2,4,4-tetramethyl-1,3-cyclobutylene carbonate).

Process for preparing the polycarbonate of

The invention relates to the compounds having the structures I and II: ##STR1## The invention also relates to a method of making the compound having the structure I by mixing 2,2,4,4-tetramethyl-1,3-cyclobutanediol; dimethyl carbonate; and a basic catalyst, and heating the mixture.

Carbonic acid 3-methoxycarbonyloxy-2,2,4,4-tetramethyl-cyclobutyl ester

This invention relates to a method of preparing a reinforced polyester composition comprising the steps of: I. mixing

Reinforced polyester compositions and method of making same

Disclosed is a process for the preparation of poly(ester-carbonates) wherein (1) an aromatic diol, (2) methyl phenyl carbonate and (3) an alkyl carboxylate ester component selected from an aromatic dicarboxylate ester, a hydroxy aromatic carboxylate ester or a mixture thereof are contacted in the presence of a transesterification/polycondensation catalyst under transesterification/polycondensation conditions of pressure and temperature.

Process for the preparation of poly(ester-carbonates)

A new process for preparing polyketones (1) from at least one aromatic compound and at least one aromatic, aliphatic, and/or cycloaliphatic dicarboxylic acid or (2) from at least one self-polymerizable aromatic monocarboxylic acid or (3) from a mixture of (1) and (2) is disclosed.

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Weber City, VA, United States of America

William Ronald Darnell