1-9 A-D E-G H-M N-P Q-S T-Z

DIMER ACID




Dimer Acid = dimerized fatty acid = Fatty acids, C18-unsatd., dimers
www.atamankimya.com

Dimer acid is the highest-molecular-weight dibasic acids commercially available.
Dimer acid, also known as dimerized fatty acid, belongs to the class of dicarboxylic acids, obtained by dimerizing unsaturated fatty acids.

Dimer acid, or dimerized fatty acid, is dicarboxylic acid prepared by dimerizing unsaturated fatty acids obtained from tall oil, usually on clay catalysts. 
The CAS number of the material is 61788-89-4. 

CAS No.: 61788-89-4
EC / List no.: 500-148-0
Mol. formula: C144H254O16

Synonyms: dimerized fatty acids

Fatty acids, C18-unsatd., dimers
61788-89-4
9-[(Z)-non-3-enyl]-10-octylnonadecanedioic acid
C36 Dimer acid
C18-Unsatd. fatty acids dimers
Fatty acids, C18 unsaturated dimers
DIMERACID
Fatty acid, C-18-unsaturated, dimers
EC 500-148-0
SCHEMBL633756
DTXSID70873445
9-[(3Z)-non-3-en-1-yl]-10-octylnonadecanedioic acid
1572670-81-5


Dimer acid is being used in the manufacturing of alkyd resins that are majorly used for synthetic paintings and coatings, which are employed in the construction industry due to their properties.
- The properties of dimer acid include high molecular weight, difficulty in crystallization and distillation, highly flexible cyclic structure, soluble in hydrocarbons, and easily controlled reactivity.
- Polyamide hot-melt adhesives largely use dimer acid in the manufacturing process. These hot-melt adhesives are used on metal, paper, wood, and many plastics, like PVC, surface-treated polypropylene, and polyethylene for excellent adhesion purposes, due to their characteristics.
- Hot-melt adhesives have high thermal stability, high melting points, and good chemical resistance to many compounds. These properties are increasing the demand for these adhesives over other adhesives in the current scenario.
- Increasing applications for the adhesives inpackaging industry, owing to the strong demand from end-user industries, such as food and beverages, are driving the market for dimer acid.



Major uses of ATAMAN' s Dimer Acid include curing agents, alkyd resins, rheology modifiers, lubricity additives and corrosion inhibitors.
Dimer acids belong to the class of dicarboxylic acid and are manufactured by dimerizing fatty acids. 
It is the process by which two or more molecules combine to form another compound. 
Dimer acids have yellow & viscous appearance and are non-toxic in nature. 
Dimer acids can be classified as either non-reactive or reactive. 
Dimer acids are widely utilized as curing agents for resins which are used to manufacture coatings and industrial adhesives. 
Dimer acids are also utilized in manufacturing hot melt adhesive, printing inks, fuel additives, surfactants, and lubricants.



Dimer acid is used primarily for synthesis of polyamide resins and polyamide hot melt adhesives. 
Dimer acid is also used in alkyd resins, adhesives, surfactants, as fuel oil additives, lubricants, etc.
Dimer acid is a light yellow or yellow viscous transparent liquid.

The application segment of Dimer Acid comprises non-reactive polyamides, reactive polyamides, oilfield chemicals, and others. 
Product types for dimer acid include standard, distilled, distilled, and hydrogenated

APPLICATIONS OF DIMER ACIDS:
Alkyd Resins
Adhesives and Elastomers
Polyamide Resin
Lubricants
Fuel Oil Additives
Non-reactive polyamides
Reactive polyamides
Oilfield chemicals
Others


Dimer acid has unique high-performance characteristics to enhance chemical properties in polymer resins such as polyesters, polyamides, and epoxies. 
The branched structure of Dimer Acid offers flexibility to the resin when included in the synthesis. 
The hydrocarbon character of dimer acid imparts water repellency: when incorporated into a resin, brings excellent hydrophobicity, and hydrolytic resistance. 
Dimer Acid's branched structure reduces the tendency to absorb moisture. 
Dimer modification of the different resins provides improved adhesion to various substrates, including low-polarity substrates such as PP. 

By modifying resins with dimer acid it brings:

100% renewable carbon content
Flexibility (also at low temperatures)
Adhesion to a wide range of substrates, including low-polarity plastics
Low melt viscosity, improved melt flow and substrate wetting
Excellent hydrolytic stability and chemical resistance
Enhanced hydrophobicity
Reduces water absorption
Low moisture absorption
Dicarboxylic functionality
The dicarboxylic functionality of dimer diacid allows it to be built-in into polyesters, polyamides and epoxies. 
Those polymers are typically used in applications such as adhesive, coating and engineering plastics. 




Dimer acid usually contains predominantly a dimer of stearic acid. It is also called C36 dimer acid.

Trimer acid is a corresponding material where the resulting molecule consists of three fatty acid molecules. 
Its CAS number is 68937-90-6.

Dimer acids can be converted to dimer amines by reaction with ammonia and subsequent reduction.



Dimer Acid is known as dimerized fatty acids, and it belongs to the group of the dicarboxylic acids. 
Dimer acid finds its application in surface coatings, lubricants, and fuel additives, among others.

Dimer acid is being used in the manufacturing of alkyd resins that are majorly used for synthetic paintings and coatings, which are employed in the construction industry due to their properties.

The properties of dimer acid include high molecular weight, difficulty in crystallization and distillation, highly flexible cyclic structure, soluble in hydrocarbons, and easily controlled reactivity.

Polyamide hot-melt adhesives largely use dimer acid in the manufacturing process. 
These hot-melt adhesives are used on metal, paper, wood, and many plastics, like PVC, surface-treated polypropylene, and polyethylene for excellent adhesion purposes, due to their characteristics.

Hot-melt adhesives have high thermal stability, high melting points, and good chemical resistance to many compounds. 
These properties are increasing the demand for these adhesives over other adhesives in the current scenario.

Increasing applications for the adhesives inpackaging industry, owing to the strong demand from end-user industries, such as food and beverages, are driving the market for dimer acid.


Ataman's Dimer Acid is a distilled dimer acid that provids high dimer acid content with a very low monomer and low trimer content and improved color and color stability. 
This dimer acid is designed for use in high quality, high molecular weight, low color polyamide resins and specialty polyesters. 
Other uses of dimer acid include: surfactants, urethane polymers, ink resins, various surface coatings, hot melt adhesives and lubricants.

Major uses of ATAMAN' s Dimer Acid include curing agents, alkyd resins, rheology modifiers, lubricity additives and corrosion inhibitors.



Oilfield chemicals find wide application scope in oil and gas extraction and processing activities along with other applications such as well drilling, refining, and hydraulic fracturing. 
Key oilfield chemicals that utilize dimer acid as a raw material include corrosion & scale inhibitors, wetting agents, surfactants, and demulsifiers.

The shift in trend from energy imports to domestic generation, to become self-sufficient &cater to the growing energy demand in emerging economies is also likely to encourage dimer acid applications.

The increasing number of drilling activities across the globe to meet excess energy demand is expected to positively impact oilfield chemicals and positively impact dimer acid demand


Expanding water transport and shipping industry is poised to drive marine coatings demand. 
Marine coatings are increasingly utilizing dimer acid in the form of acid based polyamide resins for enhanced coatings performance



Production of Dimer Acid
Dimer acid (DA) is a dicarboxylic acid prepared by dimerizing unsaturated fatty acids by a Diels-Alder
Dimer fatty acid is produced from different fatty acids by heating. 
Necessary are a fatty acid with conjugated double bonds or other unsaturated fatty acids. 
Examples of such fatty acids are conjugated linoleic acids. 
The reaction is carried out via Diels-Alder addition, whereby a partially unsaturated C6 ring is formed.
Besides the dimer, trimers as well as (unreacted) monomers of the fatty acids may be present in the mixture.

Since its main raw material is derived from natural oils such as tall oil, cottonseed oil, and soybean oil, Dimer Acid is also an important renewable resource, and it is used primarily in the synthesis of polyamide resins, alkyd resins, and some functional copolymers


Industrial Dimer Acid usually contains predominantly a dimer of stearic acid. 
In contrast to lignin, the aliphatic carbon chains confer considerable flexibility to Dimer Acid. 
The introduction of Dimer Acid into Lignin may increase the backbone flexibility of the graft copolymer, and thereafter reduce the chain stiffness of the polymers modified by Lignin. 

Dimer acid is non-toxic and have yellow viscous transparent appearance. 
Dimer acids are predominantly used to make polyamide resins and hot melt adhesives. 
Based on properties, dimer acid-based polyamide resins can be classified as either reactive or non-reactive. 
Reactive polyamides act as curing agents for epoxy resins, which are used to manufacture adhesives and surface coatings. 
Whereas, non-reactive polyamides are largely used to manufacture printing inks and hot-melt adhesives. 
In addition, dimer acid-based polyamide resins are widely used as fuel oil additives, and lubricants in alkyd resins, adhesives, and surfactants.

The demand for dimer acid is expected to increase due to its comprehensive applications in industries, such as paints & coatings, adhesives, and oilfield chemicals among others. 
These industries would witness a persistent growth in the future, thereby augmenting the growth of world dimer acid market. 
Currently, non-reactive polymer dominates the application segment in the dimer acid market. 
However, reactive polymers are forecast to exhibit the highest CAGR due to its growing popularity in construction and marine coatings.
Despite its optimistic stance, the dimer acid industry, is likely to witness fluctuations in the price of raw materials such as rapeseed oil, cottonseed oil, and soybean oil that can hamper the growth of the market




Dimer acid is widely used in manufacturing thermally stable coatings for utilization in various industries such as automotive, construction, and electronics. 
Its chemically inert and low toxic nature makes it a viable choice for manufacturers owing to rising stringent regulations for high quality and customer centric safe products.
 

They are also known as dimerized fatty acids and are prepared from unsaturated fatty acids obtained from oleic acid, canola oil, cotton seed oil, or tall oil. 
They are widely utilized for manufacturing polyamide hot melt adhesives, alkyd resins, surfactants, lubricants, and fuel oil additives. 
Its nontoxic nature, economic feasibility, and easy availability makes it attractive to manufactures. 
It is utilized in various industries such as adhesives, oil & gas, and lubricants owing to chemical and thermally stable characteristics which may accelerate dimer acid market value.



Dimer acid, often referred to as dimerized fatty acids, are a class of dicarboxylic acids that are synthesized by clay catalysed oilgomerization of unsaturated fatty acids (C18). 
Unsaturated fatty acids that form the raw material for dimer acids are obtained from natural sources including tall oil fatty acids, rapeseed oil, cottonseed oil, and soybean oil, among the others. 
Dimer acid based products find application across a diverse set of industries including paints & coatings, adhesives and oilfield chemicals among the others. 
Depending on the purity of the final product and the processes to which it is subjected to, these dimer acids may be standard, distilled and distilled & hydrogenated dimer acids. 
The primary application areas of dimer acids include reactive polyamides, non-reactive polyamides, oilfield chemicals, and other miscellaneous applications such as lubrication, metal working fluids, etc.

The key drivers identified in the dimer acid industry include its wide-ranging applications in end-use industries, such as adhesives, paints & coatings, and oilfield chemicals. 
These industries are expected to witness sustained growth in the future, owing to which the demand for dimer acid is expected to increase.

Also, for synthesizing polyamide resins, dimer acid is widely used. 
Hence, the polyamide resins are of two types such as non-reactive polyamide and reactive polyamide. 
Among these two types, reactive polyamide is extensively used for epoxy resin for molded resin, marine coating, thermosetting surface coating, adhesives, potting materials & lining, heavy-duty coating, and others as a curing agent. 
On the other hand, the non-reactive polyamide is widely used for printing inks and producing hot melt adhesives. 
Along with that, the Dimer Acid is extensively used in oilfield applications as a wetting agent, corrosion & scale inhibitor, demulsifier, and surfactants. 
Moreover, Dimer Acid is widely used in cosmetics & personal care products like depilatory wax removal products, making safer nail polishes and hair color products. 
The increasing demand for surface coating, paint & inks, adhesives, and sealants is increasing the growth of the construction industry. 

It is predicted that the increasing growth of the construction industry might increase the growth of the global Dimer Acid Market. 
In addition to this, the increasing demand for oilfield chemicals is predicted to boost the global market due to the increasing number of drilling activities in various regions to meet excess energy demands. 
Furthermore, the Global Dimer Acid Market is growing on a large scale due to the increasing cosmetics application in various regions.

Dimer acids also known as dimerized fatty acids are known to be dicarboxylic acids that are produced by a process of dimerizing unsaturated fatty acids. 
These unsaturated fatty acids are obtained from fatty acid feedstock such as tallow oil, rapeseed oil and tall oil among others. 
Crude dimer is produced from tall oil fatty acid by heat treatment with or without use of a suitable catalyst. 
They act as building blocks for several end-products due to its di-carboxylic acid reactivity. 
Dimeric acids usually consist of stearic acids, therefore called as C36 dimer acid. 
This chemistry of Dimer acid can further produce trimer acid comprising of three fatty acid molecules. 
Dimer acids are transparent light yellow colored viscous liquids which are non-toxic in nature.

The major application of dimer acids is in manufacturing polyamide resins which are used in inks and coatings and adhesives among others. 
The other areas of application of dimer acids include reactive and non-reactive polyamides for epoxy resins, fuel additives, synthetic lubricants, polyol esters, alkyd resins, corrosion inhibitors, personal care and oil field drilling muds among others.

Growing demand for dimer acids for manufacturing polyamides is the major factor driving the global dimer acid market. 
Increasing demand from the automobile industry is another factor generating scope for growth of global dimer acid market. 
Moreover, increasing demand from the end-user industries such as inks and coatings, adhesives and oil and petroleum industries is also expected to boost demand for dimer acids in the near future.

However, the limitation to the growth of global dimer acid market is due to low availability of feedstock such as C18 tall oil fatty acid. 
This tall oil is a result of kraft wood pulping operations. Major production of dimer acids is carried out from tall oil fatty acids. 
This factor is expected to hamper the growth of global dimer acid marker in the near future.

The environmental friendly nature of dimer acids has led to its application in wide range of applications in various end-user industries. 
Growing opportunities from the automobile industry for corrosion inhibitors, personal care and cosmetics and flexographic ink industry are expected to boost market demand for dimer acids in the developing as well as developing economies in the near future.


Vegetable oils such as soybean & corn are witnessing high demand from the food and biofuels industry, resulting in dwindling supplies for dimer acid production

Polyamide hot-melt adhesive is reacted from dimer acid and diamine. This hot-melt adhesive has high bonding strength, good suppleness, high temperature resistance and good media resistance. This polyamide hot-melt adhesive is mainly used in fabric, leather, cable heat shrink sleeve, electrical union seal, adhesive and fix electron component. 
It is also be used for adhesive wood, plastic, metal, ceramic and so on.

Product name: polyamide hot-melt adhesive
Performance: yellowish granula transparent solid. 
Non-toxic, no stimulation, can be soluble in most organic solvents, non-soluble in water.

Properties: polyamide hot-melt adhesive can be soluble in general organic solvents. 
It can be soluble and melt at low temperature, stable at high temperature, has good flexible property.

Uses: polyamide hot-melt adhesive can be used as adhesive for garments, shoes, leather and electric products seal. 
It is also be used as hot-melt bonding material.


Hot melt polyamides exhibit high adhesive strength. 
The polyamides synthesized from dimer fatty acids and diamines can present low crystallinity and a broad range of melting temperatures. 
In this work, polyamides with different compositions of dimer fatty acids, piperazine, ethylenediamine, sebacic acid and stearic acid and different content of secondary diamine (piperazine) and primary diamine (ethylenediamine) were synthesized. 
Polyamides with higher purity of dimer acids showed greater molecular weight, adhesion performance and a better mechanical resistance evaluated in stress/strain test. 
Softening point increased with increase in monomers content. 
By differential scanning calorimetry analysis, it was observed that polyamides with low percentage of monomer content show only one narrow melting peak in 100 °C. 
The increase in the acids monomer content leads to a larger temperature range of melting peak. 
The use of dimer fatty acid with a low content of monomers (up to 6%) in the polyamides synthesis promotes the formation of hot melt adhesives with good adhesion performances. 
The lowest monomer content leads to an increase in molecular weight, viscosity and mechanical properties of polyamide. 
Increase in the content of primary amines in polyamides increases crystallinity, viscosity and mechanical properties due to the higher number of hydrogen bonds formed by amide groups.


High softening-point dimeric acid type polyamide hot melt adhesive tackiness agent is widely used in the making of electric parts and automobile component.
For example, because the dimeric acid type polyamide hot melt adhesive of high softening-point has good resistance to mineral oiliness, good lower temperature resistance and cohesiveness, it for the manufacture of oil resistant filter core, is also done the making of the coated moulding of sealing by many automobile filters factory by some electric parts station-services.
But, the high high-temp stability of high softening-point dimeric acid type polyamide hot melt adhesive tackiness agent poor (because high softening-point hot melt adhesive need use in operation at 230 ℃ of higher melt temperatures).
Make like this hot melt adhesive can not repeatedly heat melting, can not reclaim use, and shortened the at high temperature time of adjustable of hot melt adhesive glue-injection machine.
It is that main raw material is made that dimeric acid type polyamide hot melt adhesive resin generally adopts dimerization oleic acid, owing to existing a small amount of trimer acid in dimeracid, and there are many free two keys to exist (except hydrogenated dimer acids, hydrogenated dimer acids price is very expensive), the dimeric acid type polyamide hot melt adhesive resin being synthesized is thus to be at high temperature easy to be aging, and produces the phenomenon of cross linked gel, skinning.
Especially the dimeric acid type polyamide hot melt adhesive resin of high softening-point, because of it must be under 230 ℃ of left and right or above condition melting operation.For high-temperature oxidation resistance and the thermostability of this dimeric acid type polyamide hot melt adhesive resin to high softening-point require higher.
Therefore, in this area in the urgent need to a kind of high-temperature oxidation resistance and the good high softening-point dimeric acid type polyamide hot melt adhesive composition of high high-temp stability.



Polyamide hot-melt adhesive is reacted from dimer acid and diamine. 
This hot-melt adhesive has high bonding strength, good suppleness, high temperature resistance and good media resistance. 
This polyamide hot-melt adhesive is mainly used in fabric, leather, cable heat shrink sleeve, electrical union seal, adhesive and fix electron component. 
It is also be used for adhesive wood, plastic, metal, ceramic and so on


Dimer acids which are also known as dimerized fatty acids belong to the group of dicarboxylic acids. 
Dimer acids are viscous fluids that are transparent and non-toxic in nature. 
Dimer acids are manufactured by dimerizing unsaturated fatty acids that are obtained from oleic acid, canola oil, tallow, cottonseed, tall oil and rapeseed among others.  
Dimer acids are widely used to synthesize polyamide resins and hot melt adhesives. 
Dimer acid-based polyamide resins have varied properties which makes them either reactive or non-reactive in nature. 
Reactive polyamides are primarily used as curing agents for epoxy resins that are generally used in the manufacturing of adhesives and surface coatings. 
On the other hand, the non reactive polyamides are predominantly used in the manufacturing of printing inks and hot-melt adhesives. 
Dimer acid-based polyamide resins exhibit physical properties such as heat resistance, cold resistance, film flexibility, fast curing, oil resistance, excellent adhesion and good compatibility among others. 
Dimer acid-based polyamide resins are widely used as decorative coatings, fabrics, interlining, shoe stretch, fold plastic and Baotou glue.

Growing economies of developing countries coupled with rising disposable income has boosted the overall demand for residential properties which in turn is expected to augment the overall growth of construction industry. Construction industry is the major application of adhesives and surface coatings. 
Thus, the growing demand for adhesives and surface coatings from various end-use industries such as construction is expected to drive the overall dimer acid-based polyamide resins market. Dimer acid-based polyamide resins are also mainly consumed in the manufacturing of printing inks. 
Dimer acid-based polyamide resins exhibit improved freeze thaw characteristics to the printing ink compositions. 
Thus, the use of dimer acid-based polyamide resins plays a crucial role in improving the overall quality of the printing inks. 
Thus, growing demand for printing ink is expected to augment the overall growth of dimer acid-based polyamide resins market.

China is the major consumer of dimer acid-based polyamide resins owing to the presence of huge demand for adhesives and surface coatings from construction and automobile applications. North America is expected to be the next largest consumer of dimer acid-based polyamide resins owing to the presence of huge demand for printing inks in the region. 
The demand for DAB polyamide resins is expected to grow rapidly in Europe owing to the huge demand for surface coatings from the automobile industry present in the region. 
Rest of Asia Pacific is anticipated to experience huge demand for dimer acid-based polyamide resins owing to the growing construction industry in countries such as India, Japan and Korea present in the region


Growing Demand for Alkyd Resins and Adhesives

– Dimer Acid is known as dimerized fatty acids, and it belongs to the group of the dicarboxylic acids. Dimer acid finds its application in surface coatings, lubricants, and fuel additives, among others.

– Dimer acid is being used in the manufacturing of alkyd resins that are majorly used for synthetic paintings and coatings, which are employed in the construction industry due to their properties.
– The properties of dimer acid include high molecular weight, difficulty in crystallization and distillation, highly flexible cyclic structure, soluble in hydrocarbons, and easily controlled reactivity.
– Polyamide hot-melt adhesives largely use dimer acid in the manufacturing process. These hot-melt adhesives are used on metal, paper, wood, and many plastics, like PVC, surface-treated polypropylene, and polyethylene for excellent adhesion purposes, due to their characteristics.
– Hot-melt adhesives have high thermal stability, high melting points, and good chemical resistance to many compounds. These properties are increasing the demand for these adhesives over other adhesives in the current scenario.
– Increasing applications for the adhesives inpackaging industry, owing to the strong demand from end-user industries, such as food and beverages, are driving the market for dimer acid.


Ataman Chemicals © 2015 All Rights Reserved.