In the field of building waterproof materials, Oriental Yuhong has always been a leader in the industry.
News came on June 10, 2026. Information from the State Intellectual Property Office showed that Beijing Oriental Yuhong Waterproof Technology Co., Ltd. successfully applied for a patent titled “Halogen-free flame-retardant waterproof layer, halogen-free flame-retardant waterproof board and preparation method thereof”. The authorization announcement number is CN120888130B, and the authorization announcement date is June 9, 2026.
The patent application publication number is CN120888130A, the application number is CN202511418475.7, the application publication date is June 9, 2026, and the application date is September 30, 2025.
Judging from the patent abstract, this invention belongs to the field of waterproof boards and flame retardant materials.
The halogen-free flame retardant waterproof layer contains, in parts by weight, 10-30 parts of high-density polyethylene resin, 20-60 parts of medium-density polyethylene resin, 0-10 parts of linear low-density polyethylene resin, 5-20 parts of ethylene-vinyl acetate copolymer resin, 5-10 parts of ethylene-acrylic copolymer compatibilizer, 5-50 parts of condensed phase halogen-free flame retardant, 0.1-
3 parts polyether block amide elastomer antistatic agent, 0.1 – 3 parts rare earth coupling agent, 0.1 – 1.5 parts dispersant, 0.1 – 1.5 parts antioxidant, 0.1 – 1.5 parts light stabilizer.
Among them, the condensed phase halogen-free flame retardant is selected from at least one of phosphorus-based flame retardants, phosphorus-nitrogen intumescent flame retardants, and silicon-based flame retardants.
The waterproof board is a multi-layer laminated structure, including a strong flame-retardant waterproof layer, a non-flame-retardant waterproof layer or a weak flame-retardant waterproof layer, and the strong flame-retardant waterproof layer is spaced apart from the non-flame-retardant waterproof layer and/or the weak flame-retardant waterproof layer.
Oriental Yuhong was established on March 30, 1998 and listed on the Shenzhen Stock Exchange on September 10, 2008. Its registered address and office address are both in Beijing.
As a leading company in the domestic waterproofing industry, it focuses on the research and development of building waterproofing materials and other businesses. It has strong technical strength and advantages in the entire industry chain.
It is engaged in the research and development, production, sales and waterproof engineering construction of building waterproof materials. The Shenwan industry it belongs to is building materials-decoration building materials-waterproof materials, involving conceptual sectors such as house inspection, prefabricated construction, and prefabricated construction.
In 2025, Oriental Yuhong’s operating income will reach 27.579 billion yuan, ranking 1/3 in the industry, far exceeding the 6.044 billion yuan of second-place Keshun Co., Ltd., higher than the industry average of 12.011 billion yuan and the median of 6.044 billion yuan.
Among its main businesses, waterproofing membrane revenue accounted for 41.20% of 11.361 billion yuan.
Net profit was 37.9821 million yuan, ranking 2/3 in the industry, second only to Karen Shares’ 38.475 million yuan, higher than the industry average – 157 million yuan, and the same as the industry median.
Recently, Oriental Yuhong has also obtained many other patent results.
For example, there are many invention patents such as the experimental device for the automated preparation of reactive coatings, glass fiber reinforced polyester base modified asphalt waterproofing membrane and its preparation method.
These patents cover many aspects of the waterproof field, fully reflecting Oriental Yuhong’s continuous investment and strong strength in technological innovation.
It is believed that in the future, Oriental Yuhong will continue to maintain its leading position in the waterproofing industry with these advanced technologies and patents, and make greater contributions to the global construction waterproofing industry.
