Another Technical Breakthrough – Invention Patent Obtained for Special Impermeable Materials
Release Time:
2026-02-10
Recently, the company has achieved another milestone and new breakthrough in the field of special engineering materials, being officially granted the invention patent titled Polymer Impermeable Material with Combined Oil Resistance and Impermeability, Its Preparation Method and Application.
Targeting the core impermeability requirements of harsh oil storage environments such as underground water-sealed cavern oil depots, the patented technology independently developed an innovative polyurethane-based impermeable material. Boasting outstanding oil resistance, water resistance and high adhesion performance in humid conditions, this material delivers critical material support for the safe construction and long-term protection of China’s oil depots, filling a niche technical gap in impermeable materials for special oil storage facilities.

Four Core Technical Advantages Reinforce the Special Impermeability Barrier
Multiple innovations have been made to the material formula and preparation process of this invention patent, featuring prominent core technical highlights. Its four major advantages comprehensively guarantee impermeability performance and application adaptability:
1. Intelligent anti-permeability for precise adaptation to harsh environments
Carboxymethyl cellulose and hydrogen phosphate salts are innovatively incorporated. The material automatically improves compactness in alkaline surroundings to effectively block oil and water penetration, greatly boosting its core water and oil resistance, and fully meeting the long-term protection demands of oil storage environments.
2. High tensile bonding for stable adhesion without detachment
Composite fillers of sodium acrylate and sodium alginate hydrogel micropowder are adopted. While enhancing the material’s inherent strength, they drastically improve its adhesion under humid conditions, enabling firm attachment to the concrete surfaces of oil depots and eliminating impermeability failures caused by poor bonding.
3. Balanced performance integrating practicality and construction convenience
Scientific optimization of component ratios delivers fully balanced material performance. While maintaining high compressive strength, the material features excellent medium stability and construction adaptability. It flexibly accommodates diverse construction scenarios to reduce construction difficulty and improve work efficiency.
4. Targeted positioning with broad application potential
Centered on oil depot impermeability, the material is also applicable to a wide range of other severe environments, presenting great value for expanded application scenarios.
This polymer impermeable material is tailor-made for the impermeability, leakage stoppage and reinforcement needs of underground water-sealed cavern oil depots, and is particularly suitable for protection construction on humid and alkaline structures such as shotcrete and rock bolt layers of cavern depots.
Its successful development and patent authorization not only markedly boost China’s independent innovation capacity for safety protection materials used in special oil storage facilities and break relevant technical barriers, but also provide a brand-new high-performance material solution for impermeability projects in similarly harsh environments including chemical storage tanks and offshore platforms, driving technological upgrading of the industry’s impermeability technologies.
Adhering to the core philosophy of "solving engineering challenges through material technological innovation", the company has long focused on the R&D of special engineering materials. The acquisition of this invention patent marks another substantive breakthrough in the company’s development of high-performance special engineering materials, demonstrating its robust independent R&D capacity and innovative vitality.
Going forward, the company will continue to deepen technological innovation and strengthen the layout of independent intellectual property rights. By delivering higher-quality and more efficient material solutions, it will contribute solid scientific and technological strength to advancing the safe, eco-friendly and sustainable development of national energy infrastructure.
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