DIALLYL PHTHALATE (DAP) RESIN

Diallyl phthalate (DAP) resin a full bar means this is the highest value in the relevant set. 
Diallyl phthalate (DAP) resin a half-full bar means it's 50% of the highest, and so on.
Diallyl phthalate (DAP) resin is a thermosetting polymer derived from diallyl phthalate monomer, widely used in electrical, electronic, and high-performance industrial applications due to its excellent thermal and dimensional stability.

CAS Number: 131-17-9
Molecular Formula: C14H14O4
Molecular Weight: 246.26
EINECS Number: 205-016-3

Synonyms: DIALLYL PHTHALATE, 131-17-9, Allyl phthalate, Diallylphthalate, Dapon R, Dapon 35, Phthalic acid, diallyl ester, 1,2-Benzenedicarboxylic acid, di-2-propenyl ester, o-Phthalic acid, diallyl ester, 1,2-Benzenedicarboxylic acid, 1,2-di-2-propen-1-yl ester, NCI-C50657, Diallylester kyseliny ftalove, DTXSID7020392, Di-2-propenyl 1,2-benzenedicarboxylate, Diallylester phthalic acid, bis(prop-2-enyl) benzene-1,2-dicarboxylate, F79L0UL6ST, NSC-7667, Diallyl ester o-phthalic acid, DTXCID70392, 1,2-bis(prop-2-en-1-yl) benzene-1,2-dicarboxylate, 205-016-3, RefChem:132597, Phthalic Acid Diallyl Ester, NSC 7667, MFCD00008646, phthalic acid, bis-allyl ester, CAS-131-17-9, CCRIS 1361, HSDB 4169, EINECS 205-016-3, 143318-73-4, Diallylester kyseliny ftalove [Czech], UNII-F79L0UL6ST, BRN 1880877, AI3-02574, DAP monomer, di-allyl phthalate, diallyl benzene-1,2-dicarboxylate, DIPROP-2-ENYL BENZENE-1,2-DICARBOXYLATE, Diallyl phthalate, 97%, EC 205-016-3, SCHEMBL15174, 4-09-00-03188 (Beilstein Handbook Reference), MLS002415725, Diallyl ester of phthalic acid, orb1705696, WLN: 1U2OVR BVO2U1, RX 1-501N (Salt/Mix), CHEMBL1329372, DIALLYL PHTHALATE [HSDB], SCHEMBL29362146, MSK1131, NSC7667, HMS2267F17, RX 3-1-530 (Salt/Mix), Tox21_201961, Tox21_300135, Nonflammable decobest DA (Salt/Mix), Diallyl phthalate, analytical standard, AKOS015891274, NCGC00091365-01, NCGC00091365-02, NCGC00091365-03, NCGC00091365-04, NCGC00254197-01, NCGC00259510-01, BS-14891, SMR001253767, NS00011513, P0290, ST50405391, Di(prop-2-en-1-yl) benzene-1,2-dicarboxylate, F87052, prop-2-enyl 2-(prop-2-enyloxycarbonyl)benzoate, Q2161731, Diallyl ortho-phthalate; 1,2-Benzenedicarboxylic acid di-2-propenyl ester; Phthalic acid, bis-allyl ester; Phthalic acid diallyl ester; InChI=1/C14H14O4/c1-3-9-17-13(15)11-7-5-6-8-12(11)14(16)18-10-4-2/h3-8H,1-2,9-10H, DAP(Diallyl Phthalate);DIALLYL PHTHALATE OEKANAL, 250 MG;di-2-propenyl1,2-benzenedicarboxylate;Diallyl ester of phthalic acid;Diallyl ester o-phthalic acid;Diallylester kyseliny ftalove;Diallylester phthalic acid;diallylesterkyselinyftalove

Diallyl phthalate (DAP) resin has the lowest tensile strength among thermoset plastics.
Diallyl phthalate (DAP) resin has the lowest mechanical heat stability and a fairly high dielectric strength. 
The graph bars on the material properties cards below compare DAP to other thermoset plastics (top) and the entire database (bottom). 

Diallyl phthalate (DAP) resin is commonly referred to as DAP resin.
Diallyl phthalate (DAP) resin belongs to the class of allylic thermosetting resins.

Diallyl phthalate (DAP) resin is an ester of phthalic acid with allyl alcohol, containing two allyl (–CH₂–CH=CH₂) groups.
During curing, these allyl groups undergo polymerization and crosslinking.
This forms a rigid, three-dimensional network structure.

Diallyl phthalate (DAP) resin is typically supplied as a powder, granule, or prepolymer molding compound.
After curing, it becomes a hard, rigid, and dimensionally stable solid.
Diallyl phthalate (DAP) resin is usually light-colored or translucent.

Diallyl phthalate (DAP) resin exhibits excellent thermal stability and heat resistance.
It maintains properties at elevated temperatures.
This makes it suitable for electrical and electronic components.

The material shows low shrinkage during curing, which ensures high dimensional accuracy.
Diallyl phthalate (DAP) resin also has good mechanical strength.
This is important for precision parts.

Diallyl phthalate (DAP) resin provides excellent electrical insulation properties.
Diallyl phthalate (DAP) resin has high dielectric strength and low dielectric loss.
This makes it widely used in electrical applications.

The resin is resistant to chemicals, moisture, and environmental conditions.
Diallyl phthalate (DAP) resin maintains performance in harsh environments.
Diallyl phthalate (DAP) resin is best described as a thermosetting polymer with excellent electrical, thermal, and dimensional stability, widely used in electrical, electronic, and industrial components.

Diallyl phthalate (DAP) resin exhibits high crosslink density after curing, which contributes to its rigidity and thermal resistance.
The tightly crosslinked network limits molecular mobility.
This results in excellent dimensional and mechanical stability.

The material shows low dielectric constant and low dielectric loss.
These properties are critical for high-frequency electrical applications.
They ensure efficient insulation performance.

DAP resin has good flame resistance compared to many thermosetting polymers.
It does not easily propagate flames under normal conditions.
This enhances safety in electrical components.

Diallyl phthalate (DAP) resin demonstrates good machinability after curing.
Finished parts can be drilled, cut, or shaped with precision.
This allows post-processing when required.

Diallyl phthalate (DAP) resin maintains stable properties over a wide temperature range.
Diallyl phthalate (DAP) resin resists thermal deformation and retains strength.
This makes it suitable for demanding environments.

Diallyl phthalate (DAP) resin also exhibits low creep and high dimensional retention under load.
This ensures long-term performance in structural and electrical components.
It is important for reliability.

Melting point: -70 °C
Boiling point: 165–167 °C / 5 mmHg (lit.)
Density: 1.121 g/mL at 25 °C (lit.)
vapor density: 8.3 (vs air)
vapor pressure: 2.3 mm Hg (150 °C)
refractive index: n20/D 1.519 (lit.)
Flash point: >230 °F
storage temp.: Inert atmosphere, 2–8°C
solubility: 0.18 g/L
form: Liquid
color: Clear colorless to light yellow
Odor: mild odor
Water Solubility: 6 g/L (20 ºC)
BRN: 1880877
Major Application: cleaning products; cosmetics; environmental; food and beverages; personal care
InChI: 1S/C14H14O4/c1-3-9-17-13(15)11-7-5-6-8-12(11)14(16)18-10-4-2/h3-8H,1-2,9-10H2
InChIKey: QUDWYFHPNIMBFC-UHFFFAOYSA-N
SMILES: C=CCOC(=O)c1ccccc1C(=O)OCC=C
LogP: 3.23 at 20℃

Diallyl phthalate (DAP) resin cures through a free-radical polymerization mechanism, typically initiated by peroxides.
The allyl double bonds react to form crosslinks.
This results in a highly stable three-dimensional network.

Diallyl phthalate (DAP) resin exhibits excellent dimensional stability during and after curing.
Diallyl phthalate (DAP) resin shows minimal warping or distortion.
This is critical for precision-molded components.

Diallyl phthalate (DAP) resin has low water absorption, which helps maintain its electrical and mechanical properties.
It performs well in humid environments.
This makes it suitable for outdoor and electrical uses.

The material demonstrates good arc resistance and tracking resistance.
Diallyl phthalate (DAP) resin resists electrical degradation under high voltage conditions.
This is important in electrical insulation applications.

Diallyl phthalate (DAP) resin is often used in glass fiber–reinforced molding compounds.
Reinforcement improves mechanical strength and rigidity.
This expands its application range.

Diallyl phthalate (DAP) resin exhibits good surface finish and moldability.
Parts can be produced with smooth and detailed surfaces.
This enhances product quality.

Diallyl phthalate (DAP) resin has good resistance to solvents, oils, and many chemicals.
It maintains integrity in aggressive environments.
This supports industrial durability.

Diallyl phthalate (DAP) resin can be processed using compression molding or transfer molding techniques.
It cures under heat and pressure.
This allows efficient production of complex parts.

Diallyl phthalate (DAP) resin is a crosslinked thermosetting material with excellent electrical insulation, dimensional stability, and chemical resistance, making it highly suitable for precision and high-performance applications.
The material is often selected for applications requiring tight tolerances and consistent performance.
Its low shrinkage during curing supports this requirement.

This is valuable in precision engineering.
Diallyl phthalate (DAP) resin can be combined with fillers and reinforcements to tailor properties such as strength, thermal conductivity, or electrical behavior.
This flexibility enhances its industrial usefulness.

Diallyl phthalate (DAP) resin allows customized formulations.
Diallyl phthalate (DAP) resin is a high-performance thermosetting polymer characterized by strong crosslinking, excellent electrical insulation, thermal stability, and precision moldability, making it ideal for advanced engineering applications.

Uses Of Diallyl phthalate (DAP) resin:
Diallyl phthalate (DAP) resin is used as a reagent in ring-closing ruthenium based reactions.
Diallyl phthalate (DAP) resin is an important monomer for the production of thermosetting molding compounds, which must have good dimensional stability and electrical properties, and be resistant to heat and solvents. Diallyl phthalate can be polymerized or copolymerized. 
This usually is done by dissolving the diallyl phthalate monomer in 2- propanol, adding 50% hydrogen peroxide at about 105 ℃, and precipitating the prepolymer from the cooled, viscous solution with excess 2- propanol. 

Copolymers containing diallyl phthalate are suitable for specialty coating and for embedding, especially in the production of electronic devices. 
For example, the moisture-sensitive epoxy compounds now used in light-emitting diode (LED) displays can be replaced by stable diallyl phthalate epoxy encapsulating resins. 
By adding inorganic materials to diallyl phthalate prepolymer compositions, reinforced thermosetting molding compounds can be obtained. Glass cloth or paper can be impregnated with a solution of prepolymer, monomer, and peroxide initiator. 

After removal of the solvent, the glass cloth or paper is cured to give the desired film-protected material, which is used for decoration, stain-resistant overlays for household articles, and furniture.
Diallyl phthalate (DAP) resin is widely used in electrical and electronic components due to its excellent insulating properties.
Diallyl phthalate (DAP) resin is used in connectors, switches, coil forms, and terminal blocks.

In molded electrical parts, DAP resin is used for high-precision components.
Its low shrinkage allows accurate molding.
This is important for tight-tolerance applications.

Diallyl phthalate (DAP) resin is applied in circuit boards and insulating supports.
It provides stability and resistance to heat and electrical stress.
This supports long-term durability.

In automotive electrical systems, it is used for connectors and insulating parts.
Diallyl phthalate (DAP) resin withstands heat and mechanical stress.
This improves reliability in demanding environments.

Diallyl phthalate (DAP) resin is used in aerospace and defense applications for high-performance components.
It offers stability under extreme conditions.
This supports advanced engineering systems.

In industrial equipment, it is used for molded parts requiring chemical and thermal resistance.
It maintains performance in harsh environments.
This enhances equipment longevity.

Diallyl phthalate (DAP) resin is applied in glass fiber–reinforced composites.
It improves mechanical strength and dimensional stability.
This expands its use in structural applications.

In precision molded parts, such as housings and structural components, it provides excellent surface finish and stability.
Diallyl phthalate (DAP) resin supports detailed and complex designs.
This improves product quality.

Diallyl phthalate (DAP) resin is also used in electrical insulation systems for high-frequency applications.
Its low dielectric loss ensures efficient performance.
This is important in communication and electronic devices.

Diallyl phthalate (DAP) resin is used wherever high electrical insulation, thermal stability, dimensional accuracy, and mechanical strength are required, especially in electronics, automotive, aerospace, and industrial applications.
Diallyl phthalate (DAP) resin is used in high-frequency electronic components, such as coil forms and antenna supports.

Diallyl phthalate (DAP) resins low dielectric loss ensures efficient signal transmission.
This is important in communication systems.

In switchgear and electrical housings, DAP resin provides insulation and structural integrity.
Diallyl phthalate (DAP) resin resists heat and electrical stress.
This improves safety and durability.

Diallyl phthalate (DAP) resin is applied in precision instrumentation components.
Its dimensional stability ensures accurate performance.
This is critical in measurement devices.

In encapsulation and potting compounds, it protects sensitive electronic parts.
Diallyl phthalate (DAP) resin provides insulation and environmental resistance.
This extends component lifespan.

Diallyl phthalate (DAP) resin is used in molded parts for industrial machinery where chemical and thermal resistance are required.
It maintains performance under harsh conditions.
This supports reliability.

Diallyl phthalate (DAP) resin is applied in military and aerospace-grade connectors and insulators.
It performs well under extreme environmental conditions.
This ensures dependable operation.

In laminated composites and reinforced panels, it contributes to strength and stability.
Diallyl phthalate (DAP) resin works well with glass fiber reinforcements.
This supports structural applications.

Diallyl phthalate (DAP) resin is used in terminal boards and electrical mounting systems.
It provides strong insulation and mechanical support.
This enhances electrical system performance.

Diallyl phthalate (DAP) resin is also applied in heat-resistant molded parts, such as components exposed to elevated temperatures.
It retains shape and properties under heat.
Diallyl phthalate (DAP) resin is used wherever precision molding, electrical insulation, thermal resistance, and structural reliability are required, particularly in advanced engineering and high-performance systems.

Safety Profile Of Diallyl phthalate (DAP) resin:
Suspected carcinogen with experimental carcinogenic data. 
Moderately toxic by ingestion, skin contact, intraperitoneal, and subcutaneous routes. 
An eye irritant mutation data reported. 

Combustible when exposed to heat or flame; can react with oxidzing materials. 
To fight fire, use CO2 or dry chemical when heated to decomposition it emits acrid smoke and irritating fumes.
Diallyl phthalate (DAP) resin presents low to moderate hazard potential in its cured form, but higher risks in monomer or uncured resin form, mainly due to irritation and potential toxicity.

Safety depends on processing stage and exposure conditions.
Diallyl phthalate (DAP) resin proper handling precautions are required.

Skin contact with uncured resin or monomer may cause irritation or sensitization.
Symptoms can include redness, itching, or dermatitis with repeated exposure.
Protective gloves and clothing should be used.

Eye contact may cause irritation or injury, especially with liquid monomer or dust from powders.
Symptoms include redness, tearing, and discomfort.
Immediate rinsing with water is required.

Inhalation of dust or vapors may cause respiratory irritation.
Monomer vapors or decomposition fumes can be more harmful.
Adequate ventilation and respiratory protection are recommended.

Ingestion is harmful and may cause gastrointestinal irritation.
Diallyl phthalate (DAP) resin is not intended for oral exposure.
Medical attention should be sought if swallowed.