Polyarylethersulfone compositions exhibiting reduced yellowness and high light transmittance properties and articles made therefrom
AssigneeSolvay Advanced Polymers, L.L.C.
InventorMohammad El-Hibri
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Abstract
A polyarylethersulfone polymer composition comprising a polyarylethersulfone having reduced yellowness and high light transmittance is provided. The composition includes an organic phosphorous-containing compound and at least one of the following two additives: a colorant, and an optical brightener. The polyarylethersulfone composition of the present invention is used to form molded articles suitable for food and beverage service, medical components, and lighting components.
Claims26
1-19. (canceled)
A polyarylethersulfone polymer composition comprising:
- a polyethersulfone or a polyphenylsulfone;
- an organic phosphorous-containing compound;
- and
- at least one additive selected from the group consisting of:
- a colorant;
- and
- an optical brightener.
A polyarylethersulfone polymer composition comprising:
- a polyethersulfone or a polyphenylsulfone;
- from 30 ppm to 3000 ppm of an organic phosphorous-containing melt stabilizer;
- and
- at least one additive selected from the group consisting of:
- from 0.1 ppm to 200 ppm of a blue to violet dye;
- and
- from 1 ppm to 10,000 ppm of an optical brightener.
A polyarylethersulfone polymer composition comprising:
- a polyethersulfone or a polyphenylsulfone;
- an organic phosphorous-containing compound;
- a colorant;
- and
- an optical brightener.
Dependencies are inferred from the claim text.