MP Diol Glycol
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Description
What is MP Diol Glycol (2-Methyl-1,3-Propanediol)?
MP Diol Glycol, also known as 2-Methyl-1,3-Propanediol (MPO) or 1,3-Dihydroxy-2-methylpropane, is a branched aliphatic diol containing two primary hydroxyl groups. According to the supplied product data, its unique branched molecular structure inhibits crystallization, enabling it to remain in a liquid state even at low temperatures. This characteristic, combined with its reactive hydroxyl functionality, makes it a versatile intermediate for a wide range of industrial formulations.
MP Diol Glycol is widely used in the production of unsaturated polyester resins, saturated polyester resins, alkyd resins, polyurethane systems, polyester polyols, plasticizers, modified PET, UV-curable monomers, and personal care formulations. Its two primary hydroxyl groups and branched structure contribute to improved processing characteristics in various polymer systems, making it a valuable raw material for the resin, coatings, adhesives, plastics, and specialty chemical industries.
Why Choose MP Diol Over Conventional Glycols?
| Feature | MP Diol Glycol | Conventional Linear Glycols |
|---|---|---|
| Molecular Structure | Branched | Linear |
| Crystallization Tendency | Low | Higher |
| Low Temperature Handling | Excellent | Moderate |
| Polyester Toughness | Improved | Standard |
| Weatherability | Excellent | Good |
| Resin Processing | Faster Esterification | Standard |
How MP Diol Glycol Improves Polymer Performance?
MP Diol Glycol contributes to polymer performance through its branched molecular structure and two primary hydroxyl groups. During polymer synthesis, it helps reduce crystallization tendencies while supporting efficient chain formation, resulting in improved processability and balanced mechanical properties across polyester and polyurethane systems.
Key Features
- Branched aliphatic diol with two primary hydroxyl groups
- Low viscosity liquid
- Low tendency to crystallize, remaining liquid at low temperatures
- High boiling point for resin manufacturing processes
- Suitable for polyester resin production
- Used in polyurethane coatings, adhesives, sealants, and elastomers
- Compatible with conventional polyols in polyurethane applications
- Useful in modified PET manufacturing and polyester polyols
- Applicable in UV-curable systems and specialty intermediates
- Used as a humectant and emulsifier in personal care formulations
Technical Specifications
| Property | Specification |
|---|---|
| Product Name | MP Diol Glycol |
| Chemical Name | 2-Methyl-1,3-Propanediol |
| Other Name | 1,3-Dihydroxy-2-methylpropane |
| CAS Number | 2163-42-0 |
| Appearance | Colorless liquid |
| Assay | ≥98.0% |
| Water | ≤0.08% |
| Color (APHA) | ≤20 |
| Carbonyl (as CHO) | ≤500 ppm |
| Iron | ≤0.5 ppm |
| Boiling Point | 212°C |
| Freezing Point | -54°C |
| Specific Gravity (20°C/20°C) | 1.015 |
| Flash Point | 127°C |
| Ignition Temperature | 380°C |
Applications
Polyester Resin Industry
- Unsaturated polyester resins
- Composite manufacturing
- Fiberglass resins
- Gel coats
- Marine composites
- Fiberglass panels
Paints & Coatings Industry
- Saturated polyester coatings
- Polyester binders
- Industrial coatings
- High-weatherability coating systems
- Thermosetting coatings
Polyurethane Industry
- Polyurethane coatings
- Polyurethane dispersions
- Urethane elastomers
- Polyurethane adhesives
- Sealants
- Chain extender applications
- Polyester polyols
Adhesives & Sealants
- Industrial adhesives
- Urethane adhesives
- Flexible sealants
- Clear adhesive formulations
Plastics Industry
- Plasticizers
- PVC compound formulations
- Polyester derivatives
- Modified PET
- Polyester bottle resin
- Polyester fiber production
UV & Specialty Chemicals
- UV-curing monomers
- Glycol diacrylates
- Alkoxylate diacrylates
- Cross-linking agents
- Paper finishing agents
- Photosensitive materials
- Copolymer modifiers
Personal Care
- Emulsifier
- Humectant
- Personal care formulations
Why MP Diol Glycol Delivers Superior Performance?
Every performance advantage of MP Diol Glycol can be traced back to its molecular structure. The illustration below demonstrates how its branched architecture drives superior processability, resin flow, toughness, and long-term weather resistance.
Advantages of MP Diol Glycol
| Application | Key Benefit |
|---|---|
| Polyester Resins | Faster processing, lighter color & improved toughness |
| Gel Coats | Superior weatherability & blister resistance |
| Coatings | Excellent flexibility with low crystallization |
| Polyurethane | Compatible chain extender for adhesives & elastomers |
| Modified PET | Improved transparency, fiber strength & dyeability |
Packaging
- 200 Kgs Sealed Intact MS Barrels
- 20 MT ISO Tank
- 20 MT Flexibag
Storage & Handling
- Store away from strong mineral acids.
- Keep containers tightly closed when not in use.
- Minimize exposure to atmospheric moisture where low water content is required.
- Use a nitrogen blanket for moisture-sensitive applications.
- Store in phenolic-lined mild steel or stainless steel containers.
- Use clean, compatible transfer equipment to prevent contamination.
- Follow good industrial handling practices and refer to the applicable Safety Data Sheet (SDS) before us
Industries Served
MP Diol Glycol is supplied to a wide range of manufacturing industries, including:
- Polyester Resin Manufacturing
- Paints & Coatings Industry
- Polyurethane Industry
- Adhesives & Sealants Industry
- Plastics & Polymer Industry
- UV & Specialty Chemicals Industry
- Personal Care Industry
- Composite Manufacturing Industry
- Fiberglass & FRP Industry
Why Partner with Chemex Chemicals?
Choosing the right supplier is as important as selecting the right raw material. At Chemex Chemicals, we combine reliable sourcing, responsive customer service, and technical understanding to help manufacturers procure specialty chemicals with confidence. From product selection to order fulfilment, our team is committed to supporting your business with dependable supply and professional assistance.
- 40+ Years of Industry Experience – Supporting manufacturers with reliable specialty chemical solutions and a commitment to quality and service.
- Reliable Product Availability
- Quality-Focused Sourcing
- Technical Product Support
- Fast Quotation & Enquiry Response
- Flexible Supply Options
- Efficient Logistics
- Long-Term Supply Partnership
Frequently Asked Questions (FAQs)
What is MP Diol Glycol?
MP Diol Glycol (2-Methyl-1,3-Propanediol) is a branched aliphatic diol used as a chemical intermediate in polyester resins, polyurethanes, coatings, adhesives, plasticizers, and specialty polymers.
What are the main applications of MP Diol Glycol?
It is used in polyester resins, polyurethane systems, coatings, adhesives, sealants, plasticizers, modified PET, and personal care formulations.
Why is MP Diol Glycol used in polyester resin manufacturing?
It helps improve esterification rates, resin toughness, productivity, weatherability, and flexibility.
Is MP Diol Glycol suitable for polyurethane applications?
Yes. It is used in polyurethane coatings, elastomers, adhesives, sealants, dispersions, and polyester polyols, and can also function as a chain extender.
Can MP Diol Glycol be used in PET modification and UV-curable systems?
Yes. It is used as a crystallization modifier in modified PET and as an intermediate in UV-curable monomers and specialty chemical formulations.
How can I request a quotation for MP Diol Glycol?
Contact Chemex Chemicals with your required quantity, application, and delivery location to receive product information and a quotation.
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