Ruikai Company, the inventor of heat shrinkable materials, was acquired by Tyco (1999) in September, and its pipeline anticorrosion business was renamed Tyco Adhesive. At the end of 2005, Tyco sold the anti-corrosion part of the pipeline to Apollo Company of the United States. Of course, Tyco is still doing it himself in the field of electronic power. Here, I'd like to describe the anticorrosion materials for pipelines: In February 2006, a new company, Kelun Company, was established. Covalence has four brands: Raychem (thermal shrinkage), Polyken (cold wound tape), Powercrete (epoxy resin) and AnodoFlex (flexible anode). In the same year, Apollo acquired Berry, and Berry and Covalence merged in 2007. 20 12 Berry acquired STOPAQ (Viscoelastic Body) and listed on NYSE in the same year. Berry is a company specializing in food plastic packaging, and the anti-corrosion category is operated by its subsidiary Seal for Life. Seal for Life has five brands in the industry, namely Covalence (Raychem brand is no longer used for heat shrinkable tubes), Polyken (cold wound tape), Powercrete (epoxy resin), AnodoFlex (flexible anode) and STOPAQ (viscoelastic materials), and three civil brands, namely Synergyq, Blockr and SealTAQ.

It has changed hands several times anyway. It can be said that after 2005, Ruikai has nothing new (referring to heat shrinkable materials).

At present, the bushings of Ruikan in the market, such as electronics/power/communication, are basically marked with TE, that is, Tyco Electronics.

However, some agents (both at home and abroad) still use Raychem's trademark to promote heat shrinkable materials. Many products are actually produced by OEM, while few products are produced in the United States and Belgium. China's production base is in Jiangsu.