Description

Fatty Acids, Soya, Polymers With Hydroxy-Terminated Me Ph Siloxanes, Pentaerythritol And Phthalic Anhydride CAS NO 68552-43-2 is a specialized polymeric resin synthesized from soy fatty acids, pentaerythritol, phthalic anhydride, and hydroxy-terminated methyl phenyl siloxanes. This unique hybrid chemistry combines the flexibility and hydrophobicity of silicones with the film-forming and adhesion properties of alkyd-type polyesters. It is engineered to deliver enhanced performance as a modifying agent or resin component in high-performance coatings and sealants. Key industries that utilize this advanced material include industrial coatings, high-temperature resistant paints, and specialty adhesives seeking improved weatherability and surface compatibility.

Application

• High-Performance Industrial Coatings: Used as a modifying resin to improve flexibility, thermal stability, and adhesion of coatings for automotive, aerospace, and machinery.
• Heat-Resistant Paints: Serves as a key component in formulations designed for exhaust systems, engines, and industrial equipment exposed to elevated temperatures.
• Silicone-Modified Alkyd (SMA) Resins: Acts as a core polymer in SMA resins, enhancing weatherability, moisture resistance, and gloss retention in architectural and maintenance paints.
• Specialty Adhesives and Sealants: Imparts excellent adhesion to diverse substrates and elastic recovery in sealants for construction and automotive applications.
• Water-Repellent Coatings: Utilized in formulations where enhanced hydrophobicity and protection against corrosion are required.
• Plastic and Rubber Additives: Functions as a processing aid or surface modifier to improve lubricity and release properties.

Basic Information

Product Name	Fatty Acids, Soya, Polymers With Hydroxy-Terminated Me Ph Siloxanes, Pentaerythritol And Phthalic Anhydride
CAS No.	68552-43-2
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Silicone-modified alkyd resin (soya based); Poly(pentaerythritol phthalate-co-soya fatty acid-co-methylphenylsiloxane); Soya fatty acid, pentaerythritol, phthalic anhydride, hydroxy-terminated methyl phenyl siloxane polymer; SMA resin (silicone modified alkyd); Methyl phenyl siloxane, hydroxy-terminated, polymer with pentaerythritol, phthalic anhydride and soya fatty acids; Alkyd-silicone copolymer; Polyester-silicone hybrid resin
EINECS	Contact for details

Quality Control

Our production of this advanced polymeric resin adheres to strict quality management protocols to ensure batch-to-batch consistency and performance reliability. Key parameters such as viscosity, acid value, silicone content, and thermal stability are rigorously monitored. Certificates of Analysis (COA) detailing specific lot specifications are available upon request, supporting your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources and open flames. Under these conditions, the product is typically stable for 24 months from the date of manufacture.

Specification

Item	Specification
Appearance	Viscous liquid to solid resin
Color (Gardner)	≤ 8
Viscosity (at 25°C)	Contact for details
Acid Value (mg KOH/g)	≤ 10
Non-Volatile Matter (%)	≥ 98.0
Silicon Content (%)	Contact for details
Softening Point	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.