Polyether L-63 (CAS No.: 9003-11-6), also known as Polyether Polyol L-63, is a nonionic polyether polyol product manufactured by Haian Guoli Chemical Co., Ltd. It appears as a colorless to slightly yellow transparent viscous liquid and belongs to the poloxamer-type nonionic surfactant category. This product exhibits good tolerance to acids, bases, and hard water, with stable foam and high processing tolerance, providing uniform cell structure and excellent resilience to the finished product.
In terms of safety, Polyether L-63 is classified as a non-hazardous substance. Its acute oral toxicity is practically non-toxic (LD50 > 5000 mg/kg), non-irritating to the skin, has a high flash point (closed cup > 200°C), is classified as a non-flammable liquid, and is readily biodegradable, making it an environmentally friendly chemical raw material.
The core applications of Polyether L-63 are concentrated in the polyurethane industry, specifically in the following five areas:
1. High-Resilience Flexible Polyurethane Foam (Cold Cure Molding Process)
As the primary application area, it is used in the cold cure molding foaming process to produce high-resilience foams for automotive seats, furniture cushions, etc., endowing the product with excellent resilience, comfort, and durability.
2. Self-Skinning Foam
Used to manufacture polyurethane self-skinning products such as automotive steering wheels, armrests, headrests, and interior trim components, forming an integral structure with a dense skin and soft core, offering good tactile feel, wear resistance, and appearance quality.
3. Semi-Rigid Foam
Applied in semi-rigid polyurethane foam products like automotive dashboards, door inner liners, impact-absorbing cushions, etc., providing balanced resilience, impact resistance, and energy absorption characteristics to meet safety and lightweight requirements.
4. Microcellular Elastomers
Suitable for preparing high-performance polyurethane microcellular elastomers, typical products include shoe soles, insoles, damping pads, seals, etc., imparting high wear resistance, excellent resilience, and light weight with fatigue resistance.
5. Polyurethane Adhesives and Coatings
As the polyol component in two-component polyurethane adhesives and coatings, it enhances the system's adhesion, flexibility, chemical resistance, and weather resistance, widely used in automotive, construction, and general industrial coating and bonding applications.
| Parameter | Value |
|---|---|
| Product Name | Polyether L-63 (Polyether Polyol L-63) |
| CAS No. | 9003-11-6 |
| Product Type | Nonionic Polyether Polyol (Poloxamer Type) |
| Appearance | Colorless to slightly yellow transparent viscous liquid |
| Ion Type | Nonionic |
| Flash Point (Closed Cup) | >200°C |
| Acute Oral Toxicity LD50 | >5000 mg/kg (Practically Non-Toxic) |
| Skin Irritation | Non-Irritating |
| Biodegradability | Readily Biodegradable (OECD 301F, Biodegradation >60% ThOD) |
| Hazard Classification | Non-Hazardous Substance |
Although Polyether L-63 is a non-hazardous substance, avoid contact with eyes during operation as it may cause mild temporary irritation. In case of eye contact, immediately rinse with plenty of water for several minutes; if irritation persists, seek medical attention. Keep the product away from strong oxidizers, strong acids, and other incompatible materials. Waste should be disposed of in licensed waste treatment facilities in accordance with local regulations; do not discharge into soil, waterways, or public sewage systems.