dioctyl terephthalate plasticizer and method

Bis(2-ethylhexyl) terephthalate - Wikipedia

Bis (2-ethylhexyl) terephthalate commonly abbreviated DEHT (Dioctyl terephthalate or DOTP), is an organic compound with the formula C 6 H 4 (CO 2 C 8 H 17) 2. It is a non- phthalate plasticizer, being the diester of terephthalic acid and the branched-chain 2-ethylhexanol, which is referred to as octyl.

From Wikipedia, the free encyclopedia ) is a substance that is added to a material to make it softer and more flexible, to increase its , to decrease its , and/or to decrease during its handling in manufacture.

Phthalate and novel plasticizer concentrations in food items

A method for enhancing reaction efficiency of a terephthalate plasticizer involves using a homogenizer to fine PTA to slurry having a particle size of 80-110 μm, and esterifying the PTA...

In plastisols, these plasticisers (US: plasticizers) provide lower initial viscosity and better stability but requires higher fusion and processing temperature. Terephthalates exhibit lower levels of compatibility with PVC than ortho-phthalates limiting their use for the production of durable goods.

(PDF) A mini-review on different synthesis reactions of

The invention is DOTP (Di octly terephthalate) production method at normal atmospheric pressure without using any inert gas by separating the water formed in the reaction by means of column in...

( 12 ) United States Patent

plasticizers , and more particularly to a method of enhancing 10 in a homogenizer for 2-8 hours to form a PTA slurry reaction efficiency and reducing reaction time at least by having a PTA particle size of ranging between 80 and 110 37.5 % in a process for producing the dioctyl terephthalate um ; plasticizers .

Dioctyl terephthalate plasticizer and method of enhancing

US-10472317-B2 chemical patent summary.

RU2612302C1 - Method for dioctyl terephthalate production

The method for preparation of dioctyl terephthalate plasticizer comprises esterifying of terephthalic acid by 2-ethylhexanol in the presence of titanium alkoxide catalyst with further...

Alcoholysis of polyethylene terephthalate to produce dioctyl

Dioctyl terephthalate (DOTP) is a new kind of green and non-toxic plasticizer. The traditional process to prepare DOTP is costly and complicated, thus it is very necessary to find an efficient and environmentally-friendly way to obtain DOTP. In this study, we prepared DOTP from the alcoholysis of polyethylen

Plasticizer - Wikipedia

From Wikipedia, the free encyclopedia ) is a substance that is added to a material to make it softer and more flexible, to increase its , to decrease its , and/or to decrease during its handling in manufacture.

(PDF) A mini-review on different synthesis reactions of

Most commonly used phthalate plasticizers include: DEHP: Low molecular weight ortho-phthalate. Still the world’s most widely used PVC plasticizer DINP, DIDP: High molecular weight ortho-phthalates Aliphatic dibasic acid Esters – These include chemicals such as glutarates, adipates, azelates and sebacates.

( 12 ) United States Patent

A method for enhancing reaction efficiency of a terephtha late plasticizer involves using a homogenizer to fine PTA to slurry having a particle size of 80-110 um , and esterifying the PTA slurry with a C6 - C10 alcohol in the presence of a titanium - based catalyst .

( 19 ) United States ( 12 ) Patent Application Publication

late plasticizers , and more particularly to a method of enhancing reaction efficiency and reducing reaction time at least by 37 . 5 % in a process for producing the dioctyl terephthalate plasticizers . 2 . Description of Related Art [ 0003 ] Dioctyl terephthalate ( DOTP ) is an important phthalate - free plasticizer and is environmentally

RU2612302C1 - Method for dioctyl terephthalate production

The method for preparation of dioctyl terephthalate plasticizer comprises esterifying of terephthalic acid by 2-ethylhexanol in the presence of titanium alkoxide catalyst with further...

Methods for manufacturing and decolorizing dioctyl terephthalate

US-10472317-B2 chemical patent summary.

ChemFlexx DOTP - The Chemical Company

TCC’s ChemFlexx DOTP Dioctyl terephthalate (bis (2-ethylhexyl) benzene-1,4-dicarboxylate), commonly abbreviated DOTP, is an organic compound. It is the most important of the phthalate-free orthophthalate plasticizers. It is an environmentally safe, colorless viscous liquid that possesses good plasticizing properties. Applications

Machine learning-assisted non-destructive plasticizer

The invention discloses a production method of a dioctyl terephthalate composite plasticizer, which comprises the following steps of: (1) reacting terephthalic acid with isooctanol under the action of a nonacid catalyst to obtain dioctyl terephthalate; (2) reacting oil dimeric dibasic acid with isooctanol under the action of the nonacid catalyst to obtain dioctyl dimeric dibasic acid; and (3

A mini-review on different synthesis reactions of dioctyl

Among the numerous alternative plasticizers are dioctyl terephthalate (DEHT) (a terephthalate isomeric with DEHP) and 1,2-cyclohexane dicarboxylic acid diisononyl ester (DINCH) (a hydrogenated version of DINP). Both DEHT and DINCH have been used in high volumes for a variety of products used in contact with humans as alternative plasticizers

(PDF) A mini-review on different synthesis reactions of

Atpresent, DOTP has become one of the plasticizers with the mostinvestment in the United States [8], Europe [9] and Russia [10].The production methods of DOTP can generally be divided intothree categories: 1) direct esterification of terephthalic acid (PTA)with 2-ethylhexanol (2-EH) [11]; 2) alcoholysis of polyethylene tere-phthalate (PET) with

( 19 ) United States ( 12 ) Patent Application Publication

late plasticizers , and more particularly to a method of enhancing reaction efficiency and reducing reaction time at least by 37 . 5 % in a process for producing the dioctyl terephthalate plasticizers . 2 . Description of Related Art [ 0003 ] Dioctyl terephthalate ( DOTP ) is an important phthalate - free plasticizer and is environmentally

( 12 ) United States Patent

A method for enhancing reaction efficiency of a terephtha late plasticizer involves using a homogenizer to fine PTA to slurry having a particle size of 80-110 um , and esterifying the PTA slurry with a C6 - C10 alcohol in the presence of a titanium - based catalyst .

ChemFlexx DOTP - The Chemical Company

TCC’s ChemFlexx DOTP Dioctyl terephthalate (bis (2-ethylhexyl) benzene-1,4-dicarboxylate), commonly abbreviated DOTP, is an organic compound. It is the most important of the phthalate-free orthophthalate plasticizers. It is an environmentally safe, colorless viscous liquid that possesses good plasticizing properties. Applications

Comparative table of indicators of plasticizers DOP and DOTP

A.F. Fedorova In this article investigates the effect of the content of plasticizers on the properties of rubbers based on rubber BNKS-18 AMN. The traditional, widely used dioctyl phthalate...

Methods for manufacturing and decolorizing dioctyl terephthalate

US-10472317-B2 chemical patent summary.

Pseudo-homogeneous kinetic modeling of dioctyl terephthalate

Dioctyl Terephthalate, also known as DOTP, is a non-phthalate containing plasticizer. It is used primarily as a plasticizer in PVC production. DOTP-based end products comply with environmental requirements such as 16P, ROHS and REACH regulation. It has no adverse effects on human health.