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Highly selective for methyl tert-butyl ether (MTBE) synthesis under low-pressure conditions.
Exceptional thermal and hydrothermal stability ensuring extended catalyst life in fixed-bed reactors.
Low acid leaching performance, minimizing corrosion risk and downstream purification burden.
Optimized pore structure for improved mass transfer and reduced pressure drop across the reactor bed.
Consistent batch-to-batch reproducibility supported by Clariant’s ISO 9001-certified manufacturing.
Production of methyl tert-butyl ether (MTBE) in petroleum refining.
Isobutylene recovery and purification via selective oligomerization suppression.
Co-processing of bio-isobutanol feedstocks in integrated oxygenate units.
Refinery alkylation support where low-water-tolerance catalysts are required.
| Chemical Type | Sulfonic acid-functionalized macroreticular polystyrene-divinylbenzene resin |
| Product Form | Uniform spherical beads |
| Appearance | Off-white to light amber, free-flowing granules |
| Primary Applications | MTBE synthesis, isobutylene hydration, tertiary butanol (TBA) production |
| Key Features | High acid capacity, low swelling ratio, excellent mechanical strength |
| Benefits | Reduced catalyst replacement frequency, lower energy consumption, simplified regeneration protocol |
| Storage Conditions | Store dry at 5–30 °C; avoid exposure to strong oxidizers or amines |
Q1: What is the primary function of Clariant CMG 1 Catalyst in polymer processing?
A: Clariant CMG 1 Catalyst is a specialized transition metal-based catalyst designed to promote controlled crosslinking and condensation reactions—particularly in silicone elastomer and silane-modified polymer systems—enhancing cure efficiency, final mechanical integrity, and thermal stability without excessive by-product formation.
Q2: Is CMG 1 compatible with moisture-cure formulations?
A: Yes, CMG 1 is formulated for compatibility with ambient-moisture-curing systems, where it accelerates the reaction between alkoxysilane end groups and atmospheric water—enabling faster tack-free times and improved depth-of-cure, especially in thick-section or low-humidity applications.
Q3: How should CMG 1 be incorporated into a formulation?
A: CMG 1 is typically added during the late-stage mixing phase under inert or dry conditions to preserve catalytic activity. It disperses readily in common silicone oils and silane-functional resins, and dosage generally ranges from 0.1% to 2% by weight, depending on desired cure profile and base polymer reactivity.
Q4: Does CMG 1 require post-cure treatment?
A: In most standard applications, CMG 1 enables full cure at ambient or mildly elevated temperatures, eliminating the need for extended post-cure cycles. However, for demanding performance requirements—such as maximum compression set resistance or long-term thermal aging stability—a mild thermal post-cure may be beneficial.
Q5: How does CMG 1 compare to traditional tin-based catalysts in terms of regulatory acceptance and handling safety?
A: CMG 1 is a non-tin, heavy-metal-free alternative developed to address evolving regulatory expectations and sustainability goals. It avoids the handling, disposal, and end-use restrictions associated with dibutyltin dilaurate (DBTDL), while maintaining robust catalytic performance in demanding industrial sealant and adhesive formulations.
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