METHODS OF PREPARING POLYMER-ORGANOCLAY COMPOSITES AND ARTICLES DERIVED THEREFROM
申请人:Chan Pong Kwok
公开号:US20080004391A1
公开(公告)日:2008-01-03
A method for preparing a polymer-organoclay composite composition comprises combining a solvent and an unexfoliated organoclay to provide a first mixture, wherein the unexfoliated organoclay comprises alternating inorganic silicate layers and organic layers, and has an initial spacing between the silicate layers; exposing the first mixture to an energized condition of a sufficient intensity and duration to increase the initial spacing of the inorganic silicate layers, to provide a second mixture; contacting the second mixture with a polymer composition so that the polymer composition fills at least one region located between at least one pair of silicate layers, wherein the polymer composition is at least partially soluble in the solvent; and removing at least a portion of the solvent from the second mixture, wherein the inorganic silicate layers remain separated by the polymer after removal of the solvent.
In one embodiment, a plastic layer can comprise a substrate layer and a contrast layer, wherein the film has a light transmission of less than or equal to about 10% as measured on a 0.050 inch thick film sample. The contrast layer can comprise a virgin plastic, a white pigment, and a non-white colorant. The contrast layer can have a whiteness index of greater than or equal to about 50, a contrast layer yellowness index of less than 10, and a brightness of greater than or equal to 50, as measured on a 3 mm thick color chip under D65 illuminant and 2 degree observer.
Plastic compositions and products produced therefrom
申请人:Cao Feng
公开号:US20070078216A1
公开(公告)日:2007-04-05
In one embodiment, a plastic composition can comprise: a plastic, a white pigment, and a non-white colorant. The composition can have a whiteness index of greater than or equal to about 50, and a composition yellowness index of less than 10, as measured on a 3 mm thick color chip under D65 illuminant and 2 degree observer. Also disclosed are articles made from the plastic composition.
Polyarlyl ether ketone polymer blends
申请人:Aneja Ashish
公开号:US20070066765A1
公开(公告)日:2007-03-22
Phase separated blends of polyaryl ether ketones, polyaryl ketones, polyether ketones, polyether ether ketones and mixtures thereof with at least one polysulfone etherimide, wherein the polysulfone etherimide has greater than or equal to 50 mole % of the polymer linkages contain at least one aryl sulfone group are described. Such blends have improved load bearing capability at high temperature. In another aspect a high crystallization temperature, especially at fast cooling rates, is achieved.
POLY ARYL ETHER KETONE POLYMER BLENDS
申请人:Aneja Ashish
公开号:US20070197739A1
公开(公告)日:2007-08-23
Filled phase-separated blends of polyaryl ether ketones, polyaryl ketones, polyether ketones, polyether ether ketones and mixtures thereof with at least one polysulfone etherimide, wherein the polysulfone etherimide has greater than or equal to 50 mole % of the polymer linkages contain at least one aryl sulfone group are described. Such filled blends have improved load-bearing capability at high temperature. In another aspect the filled blends have a higher crystallization temperature, especially at fast cooling rates.