- PLASTICIZER COMPOSITION, RESIN COMPOSITION AND METHODS OF PREPARING THE SAME
-
The present invention relates to a plasticizer composition, a resin composition and methods of preparing the same, and provides a plasticizer which is environmentally friendly so as to be suitable for use, exhibits excellent transparency and adhesiveness, and can be improved in basic properties such as tensile strength, an elongation rate, hardness and the like when used as a plasticizer for a resin composition, and a resin composition including the same.
- -
-
Paragraph 0098
(2018/06/16)
-
- A solid acid catalysis of the preparation process of benzoic acid ester plasticizer (by machine translation)
-
The present invention discloses a solid acidify catalytic benzoic acid ester plasticizer of the preparation process, the preparation method is: to benzoic acid and alcohol as the raw material, with agent and catalyst in direct reaction to produce benzoic acid ester compound; catalytic system of the invention compared with the sulfuric acid, toluene sulfonic acid and sulfuric acid to sodium has a better catalytic activity, so the catalyst less consumption, in addition, because of the use of the is supported on a solid acid catalyst, after the reaction directly filtering can realize the separation of the catalyst, and the catalyst can be reused, makes the production process more simple, and can be basically prevent the generation of waste water, makes the production process more green environmental protection. (by machine translation)
- -
-
Paragraph 0036; 0037
(2017/07/05)
-
- A two-benzoic acid preparation method of dihydric alcohol ester plasticizers (by machine translation)
-
A two-benzoic acid dihydric alcohol ester plasticizers of the preparation method, the method to benzoic acid and dihydric alcohol as raw materials, in under the catalytic action, 100 - 250 °C, to carry out the esterification reaction, the reaction 0.5 - 48h. By distilling under reduced pressure, to obtain two-benzoic acid dihydric alcohol ester product. Two-benzoic acid ester is a non-toxic alcohol plasticizer, can replace the phthalic acid ester used for plastic, rubber in the industry field. The method for preparing the product of high yield, product is easy to separate, environment friendly, has very good application prospect. (by machine translation)
- -
-
Paragraph 0017
(2017/06/14)
-
- High-efficiency production method of diethylene glycol dibenzoate
-
The invention discloses a method for efficiently producing diethylene glycol dibenzoate. Process flow of the method is as follows: weighing benzoic acid and diglycol, as well as a catalyst sodium hydrogen sulfate in proportion, and adding into a reaction kettle to carry out alcoholization; pumping into a neutralizing kettle, adding NaOH aqueous liquor for neutralizing, washing with water after layering, discoloring after layering, and then washing with water, drying, filtering and inspecting to obtain finished products. The invention discloses a method for producing a 4.5-tonnage high-quality plasticizer or DEDB (Diethylene Glycol Dibenzoate) in a reaction kettle with capacity of 5.5 cubic meters by taking sodium hydrogen sulfate as the catalyst.
- -
-
Paragraph 0032; 0040-0041
(2017/03/17)
-
- Chemical investigation of the marine sponges Clathria reinwardti and Haliclona cribricutis
-
Diethylene glycol dibenzoate (DEGDB) (1) and two fenvalerate isomers (4 and 5) have been isolated from the sponges Clathria reinwardti and Haliclona cribricutis respectively. Two other diethylene glycol esters (2 and 3) are also synthesized. The structures of the compounds have been established by means of spectroscopic analysis, optical rotations and comparison with known compounds. These compounds are evaluated for their antimicrobial and pesticidal activities.
- Goud, T. Venkateshwar,Krishnaiah,Reddy, S. Malla,Srinivasulu,Rao, M. Rama,Venkateswarlu
-
p. 607 - 610
(2007/10/03)
-
- 3,6-Dibenzoxyl-1,2-pyridazine: A new versatile benzoyl transferring agent for NH2, -OH and -SH benzoylations
-
A newly synthesized 3,6-dibenzoxyl-1,2-pyridazine 3 has been investigated for its potential to transfer the benzoyl group to various organic substrates carrying -NH2, -OH and -SH groups. The benzoyl transfer is fairly general in scope, occurs under convenient conditions and provides good to excellent yields of benzoylated products. Moreover, by choosing proper conditions, it is possible to achieve chemoselective benzoylation in bi-functional molecules. For instance, N-benzoylation of aromatic amines can be selectively accomplished over that of aliphatic amines and vice versa by manipulating reaction conditions. Selective N- or O-benzoylation in aminophenols is also possible. Although, not studied in detail, we final that dibenzoate 3 can also be used to effect C-benzoylation of reactive phenols and ketones, as exemplified by the C-benzoylation of resorcinol and acetophenone, respectively. Dibenzoate 3, besides being a crystalline, easy to handle, solid possesses twice the potential as an acyl carrier compared to the other known acyl carriers. These features make 3 as an attractive choice for many applications pertaining to benzoyl transfer reactions.
- Mashraqui, Sabir Hussain,Shivaji, Jadhav Latika
-
p. 927 - 935
(2007/10/03)
-
- Deacylation of Pyrrole and other Aromatic Ketones
-
Ethyl 4-acetyl-3,5-dimethyl-1H-pyrrole-2-carboxylate (1a) reacts rapidly with ethylene glycol in refluxing benzene with p-toluenesulfonic acid or perchloric acid as a catalyst to give ethyl 3,5-dimethyl-1H-pyrrole-2-carboxylate (3) in high yield (96 percent).Various 2- and 3-acylpyrroles can be efficiently deacylated by using this procedure.Other ketones which undergo deacylation include phenyl(2-phenylindol-3-yl)methanone (19), 1-(5-methyl-1-phenylpyrazol-4-yl)ethanone (20), and 2,4-dimethoxybenzophenone.Certain pyrrole ketones where the acyl group is flanked by two ring methyl groups are also cleaved under acidic conditions by using ethanedithiol.
- Moon, M. W.,Wade, R. A.
-
p. 2663 - 2669
(2007/10/02)
-
- DIOXETANO-CROWN ETHERS. STABILIZATION THROUGH COMPLEXATION WITH METAL IONS
-
The first members of dioxetanocrown ethers 3 and 4 were prepared in methylene blue-sensitized,photooxygenations of 9- and 18-membered stilbecrown ethers 1 and 2, and the activation paramethers for the thermolyses of 3 and 4 were obtained.Thermal decomposition of the bis-dioxetano-18-crown-6 4 was decelerated,or accelerated in the presence of alkali metal salts depending upon the nucleophilicity of the counter anion.
- Inoue, Yoshihisa,Ouchi, Mikio,Hayama, Hidekazu,Hakushi, Tadao
-
p. 431 - 434
(2007/10/02)
-
