Process for Manufacturing a Product Containing a Catalytically Active Titanium Compound

A process for manufacturing a product comprising a catalytically active titanium compound, the process comprises:

• at least one step wherein the catalytically active titanium compound is contacted with a cellulose ester biopolymer substrate in a liquid phase comprising
• a solvent having a carbonyl function and a C—H bond in α-position to said carbonyl
• function, wherein the solvent is a C3-C6 ketone, and
• an inhibitor selected from citric acid, lactic acid, or mixtures thereof,
• wherein the catalytically active titanium compound is a carbon-modified nano-structured titanium compound, and wherein the carbon-modified nano-structured titanium compound consists of optionally agglomerated crystallites having an average particle size of from 1 to 150 nm,
• wherein there is from 1 to 20% weight of the inhibitor, relative to the weight of catalytically active titanium compound,
• wherein there is from 10 to 50% weight of the substrate, relative to total weight of the liquid phase;
• wherein the liquid phase contains up to 4 wt. % said inhibitor and said catalytically active titanium compound, wherein said inhibitor and said catalytically active titanium compound are present.

A process for manufacturing a product comprising a catalytically active titanium compound, the process comprising:

• (a) providing a first liquid phase including the catalytically active titanium compound, a first solvent, wherein the first solvent is a C3-C6 ketone, and an inhibitor selected from citric acid, lactic acid, or mixtures thereof ;
• (b) adding the first liquid phase to a second liquid phase, the second liquid phase including a cellulose ester biopolymer substrate and a second solvent wherein the second solvent is a C3-C6 ketone,;
• and
• optionally, (c) extruding the first liquid phase and the second liquid phase in combination through a die,
• wherein the catalytically active titanium compound is a carbon-modified nano-structured titanium compound, and wherein the carbon-modified nano-structured titanium compound consists of optionally agglomerated crystallites having an average particle size of from 1 to 150 nm,
• wherein there is from 1 to 20% weight of the inhibitor, relative to the weight of catalytically active titanium compound,
• wherein there is from 10 to 50% weight of the substrate, relative to total weight of the liquid phase;
• wherein the total liquid phase contains up to 4 wt. % said inhibitor and said catalytically active titanium compound, wherein said inhibitor and said catalytically active titanium compound are present.

A process for manufacturing a product comprising a catalytically active titanium compound, the process comprising:

• (a) providing a first liquid phase including the catalytically active titanium compound, a first quantity of cellulose ester biopolymer substrate, a first solvent, wherein the solvent is a C3-C6 ketone, and an inhibitor selected from citric acid, lactic acid, or mixtures thereof;
• (b) adding the first liquid phase to a second liquid phase, the second liquid phase including a second quantity of cellulose ester biopolymer substrate and a second solvent wherein the solvent is C3-C6 ketone;
• and
• optionally, (c) extruding the first liquid phase and the second liquid phase in combination through a die,
• wherein the first solvent and the second solvent each have a carbonyl function and a C—H bond in α-position to said carbonyl function and,
• wherein the catalytically active titanium compound is a carbon-modified nano-structured titanium compound, and wherein the carbon-modified nano-structured titanium compound consists of optionally agglomerated crystallites having an average particle size of from 1 to 150 nm,
• wherein there is from 1 to 20% weight of the inhibitor, relative to the weight of catalytically active titanium compound,
• wherein there is from 10 to 50% weight of the total substrate, relative to total weight of the liquid phase;
• wherein the total liquid phase contains up to 4 wt. % said inhibitor and said catalytically active titanium compound, wherein said inhibitor and said catalytically active titanium compound are present.