BR9809662A - Process for the preparation of ester
Invention Patent: "PROCESS FOR THE PREPARATION OF ESTER PLASTIFIERS" . The invention relates to a process for the preparation of ester plasticizers by reacting di- or polycarboxylic acids or their anhydrides with alcohols in the presence of a catalyst containing titanium, zirconium or tin. is characterized by the fact that a mixture of acid or anhydride of acid and alcohol is allowed to
Plasticizers - Chemical Economics Handbook (CEH) | S&P Global
Flexible PVC (and thus plasticizers) is found in the following applications: construction (flooring, wall coverings), electrical (wire and cable jacketing), consumer goods (toys, footwear, etc.), packaging, transportation (inside and outside of vehicles), furnishings, and medical uses (tubing, blood bags).
Development of biodegradable flexible films of starch and
The plasticization of the PLA with the esters and mixture stages added through extrusion was critical to achieve a blend capable of producing films by blow extrusion. Adipate esters were the most effective plasticizers because they interacted best with the PLA and yielded films with appropriate mechanical properties. Highlights
Tadayoshi Takefumi Inventions, Patents and Patent
Abstract: Provided is a process for producing a plasticizer ester characterized by previously removing dissolved oxygen in a starting alcohol, and then subjecting an organic acid or its anhydride and the alcohol to an esterification reaction in the presence of an organic metal compound catalyst, which process can substantially reduce formation of coloring impurities and can easily provide a
US5880310A - Process for producing plasticizer esters
Provided is a process for producing a plasticizer ester characterized by previously removing dissolved oxygen in a starting alcohol, and then subjecting an organic acid or its anhydride and...
- Are methyl and acetoxy plasticizers suitable for soybean fatty acid esters?
- Methoxy and acetoxy plasticizers of soybean fatty acid esters (methyl and n -butyl) showed good PVC compatibility, high efficiency, and gelling properties comparable to the properties of the commercial plasticizer, di-isononyl phthalate.
- Can cyclohexanecarboxylic acid be used as a plasticizer?
- Currently, there are many alternative plasticizers to DOP, one of which are secondary alcohol esters of cyclohexanecarboxylic acids, that have been used to prepare flexible PVC compounds with enhanced low temperature flexibility, low toxicity, and improved resistance to outdoor aging [9, 10].
- Do plasticizers migrate from ESO to Green?
- The samples with ESO showed a high exudation rate, around 35%. These results demonstrate that the migration of plasticizers should be constant. Besides, the search for new plasticizers from ESO or other green sources has been gaining space in recent years .
- Can epoxidized soybean oil plasticize PVC?
- Epoxidized soybean oil and its methyl esters were tested as plasticizers for PVC by Chaudhary et al. . The authors showed that ESO, even having a high molar mass, proved compatible with PVC, plasticizing it efficiently.
- Is ESO a primary PVC plasticizer?
- Therefore, Karmalm et al. studied ESO as a primary PVC plasticizer in the formation of plastisols and noticed that after aging the material became stiff and opaque, due to the formation of a cross-linking network between ESO and PVC.
- Is epoxidized soybean oil a plasticizer?
- Among the vegetable plasticizers, epoxidized soybean oil (ESO) stands out, being among the green plasticizers recognized by the Food and Drugs Administration of the United States . Epoxidized soybean oil (ESO) is known as an additive in plasticized PVC since it functions both as a plasticizer and stabilizer.
