Description

Piperidine, 4-3-(Dichloromethylsilyl)Propoxy-2,2,6,6-Tetramethyl-, Hydrolyzed, Polymd. is a specialized organosilicon-modified hindered amine light stabilizer (HALS) polymer. This compound is engineered to provide exceptional long-term thermal and UV stability to polymeric materials, preventing degradation and extending service life. It is a critical additive for manufacturers in the plastics, coatings, and high-performance polymer industries seeking to enhance the durability of their products under harsh environmental conditions. CAS number 137898-96-5.

Application

• As a high-performance light stabilizer in automotive coatings and plastics to prevent fading and cracking.
• As a thermal stabilizer in polyolefin films, fibers, and molded articles for outdoor applications.
• As a polymer additive in agricultural films to extend service life under intense UV exposure.
• In engineering plastics such as polyamides and polyurethanes to improve weatherability.
• For the stabilization of adhesives and sealants against oxidative degradation.
• As a synergistic additive in combination with UV absorbers in advanced stabilization packages.

Basic Information

Product Name	Piperidine, 4-3-(Dichloromethylsilyl)Propoxy-2,2,6,6-Tetramethyl-, Hydrolyzed, Polymd.
CAS No.	137898-96-5
Molecular Formula	(C14H28Cl2NO2Si)n
Molecular Weight	Contact for details (Polymer)
Synonyms	Poly[[6-[(1,1,3,3-tetramethylbutyl)amino]-1,3,5-triazine-2,4-diyl][(2,2,6,6-tetramethyl-4-piperidinyl)imino]-1,6-hexanediyl[(2,2,6,6-tetramethyl-4-piperidinyl)imino]]; HALS Polymer; Silane-modified HALS; UV Polymer Stabilizer 137898-96-5; Polymeric Hindered Amine Light Stabilizer; N-alkoxy hindered amine light stabilizer; Chimassorb 2020 (related commercial analogue); Light stabilizer 783 (related commercial analogue)
EINECS	Contact for details

Quality Control

Our production of this advanced stabilizer adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Every lot is tested against key parameters including active content, molecular weight distribution, and functional group analysis. A comprehensive Certificate of Analysis (COA) detailing purity, appearance, and specific performance tests is provided with each shipment to support your quality assurance protocols.

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). This material is hygroscopic (moisture-sensitive); keep the original container tightly sealed to minimize exposure to atmospheric humidity.

Specification

Item	Specification
Appearance	White to light yellow powder or granules
Identification (IR)	Conforms to structure
Assay (Active Content)	≥ 95.0 %
Volatile Content	≤ 1.0 %
Ash Content	≤ 0.5 %
Molecular Weight (Mw)	Contact for details

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