Dupont Teijin Films U.S. Limited Partnership

Johnson Matthey Public Limited Company

Kinectrics UK Limited

Howard Colquhoun

Stephen William Sankey

David R Turner

Stephen Jones

William A Macdonald

Stephen Meehan

Nadia Michele Walsby

Zhixue Zhu

William Alexander Mortimore

Martin Philip Hogarth

Wayne Hayes

Erol Hasan

Benjamin Baker

David Turner

Disclosed herein are film, fiber, molding composition and molded article including copolyesters that exhibit improved heat-resistance and thermo-mechanical stability. The copolyester is derived from an aliphatic glycol, an aromatic dicarboxylic acid selected from naphthalene dicarboxylic acid and terephthalic acid, and 5-50 mol % (based on 100 mole % of all glycols) of an additional monomer, bis(2-hydroxyalkyl)-2,2'-(1,4-phenylene)bis(1,3-dioxoisoindoline-5-carboxylate). The aromatic dicarboxylic acid is at least one of naphthalene dicarboxylic acid and terephthalic acid and the aliphatic glycol is selected from C, Cor Caliphatic diols. Furthermore, the copolyesters have crystallinity of at least 10%.

Copolyesterimides comprising bis(2-hydroxyalkyl)-2,2'-(1,4-phenylene)bis(1,3-dioxoisoindoline-5-carboxylate) and articles made therefrom

A copolyester includes repeating units derived from an aliphatic glycol, terephthalic acid, and the monomer of formula (I): wherein n=2, 3 or 4; Z is C&#x2550;O; comonomer (I) constitutes a proportion of the glycol fraction of the copolyester and is present in a range of from about 5 to about 15 mol % of the glycol fraction of the copolyester; wherein said copolyester is semi-crystalline. A process tor making the copolyester includes annealing a copolyester of formula (I) at 20-80&#xb0; C. below the crystalline melting point (Tm) and above the glass transition temperature (Tg).

Copolyesterimides derived from N,N'-bis-(hydroxyalkyl)-benzophenone-3,3&#x2032;,4,4&#x2032;-tetracarboxylic diimide and films made therefrom

A semi-crystalline biaxially oriented film comprising a copolyester which comprises repeating units derived from an aliphatic glycol, an aromatic dicarboxylic acid, and the monomer of formula (I): (I) wherein n=2, 3 or 4, Z is C&#x2550;O, and wherein comonomer (I) constitutes a proportion of the glycol fraction of the copolyester and is present in an amount of at least about 4 mol % of the glycol fraction of the copolyester. 

A film comprising a copolyester wherein said copolyester comprises repeating units derived from an aliphatic glycol, an aromatic dicarboxylic acid, and a comonomer (M) selected from the group consisting of N,N'-bis-(2-hydroxyalkyl)-bicyclo-[2,2,2]-oct-7-ene-2,3,5,6-tetracarboxylic diimide (BODI) and 2-hydroxyalkyl-2-[p-(2-hydroxyethoxycarbonyl)phenyl]-1,3-dioxo-2H-isoindole-5-carboxylate (DOIC), wherein the number of carbon atoms is the 2-hydroxyalkyl group is 2, 3 or 4, and wherein comonomer (M) constitutes a proportion of the glycol fraction of the copolyester.

Copolyesterimides derived from aromatic dicarboxylic acids and aliphatic glycols and films made therefrom

A copolyester comprising repeating units derived from an aliphatic glycol, an aromatic dicarboxylic acid, and the monomer of formula (I): (Formula (I)) wherein n=2, 3 or 4, Z is S(&#x2550;O), and wherein comonomer (I) constitutes a proportion of the glycol fraction of the copolyester; and films, fibers, molding compositions or molded articles comprising said copolyester. 

[object Object]

A copolyester comprising repeating units derived from an aliphatic glycol, naphthalene-dicarboxylic acid, and the monomer of formula (I) wherein n=2, 3 or 4, and films, fibres, moulding compositions and moulded articles made therefrom. 

Copolyesterimides of poly(alkylene naphthalate)s having high glass transition temperature and film made therefrom

A copolyester comprising repeating units derived from an aliphatic glycol, terephthalic acid, and the monomer of formula (I): wherein n=2, 3 or 4, and films, fibres, moulding compositions and moulded articles made therefrom. 

Copolyesterimides of poly(alkylene terephthalate)s having high glass transition temperature and film made therefrom

An ion-conducting polymer wherein at least 80% of the repeat units comprise an ion-conducting region and a spacer region is disclosed. The ion-conducting region has an aromatic backbone of one or more aromatic groups, wherein at least one ion-conducting functional group is attached to each aromatic group. The spacer region has an aromatic backbone of at least four aromatic groups, wherein no ion-conducting functional groups are attached to the aromatic backbone. The polymer is suitable for use as a fuel cell membrane, and can be incorporated into membrane electrode assemblies.

Growing community of inventors

Reading, United Kingdom

Howard Colquhoun