Polyisobutylene succinimide in engine oil-Blog-Dry Lubricant And Oil Additives Suppliers

Polyisobutylene succinimide in engine oil

2024-02-19 08:47:46  Blog

Introduction of Boronized Polyisobutylene Succinimide

Lubrizol engine oil additives are designed to meet the special protection needs of a variety of engines, including heavy-duty vehicles, passenger cars, and marine engines, as well as smaller engines in recreational vehicles and power tools. With a deep understanding of the chemistry, technology, and additive markets and decades of product development experience, Lubrizol develops products that not only meet basic technical requirements but also offer cutting-edge innovative features.

Boronized Polyisobutylene Succinimide 

Application of Boronized Polyisobutylene Succinimide

Polyisobutylene succinimide (PIBSA) is used to manufacture dispersants in custom formulations to meet the demanding requirements of engine oils. Lubrizol's polyisobutylene succinimide is a vital engine oil additive that keeps engines clean by dispersing harmful residues that can cause oil thickening, wear, and filter clogging during engine operation. It also reduces deposits on metal surfaces and continues to generate micelles, preventing soot from clumping. Its dispersing action keeps particles suspended so the oil filter can remove them without collecting on the engine.

Physical and Chemical Properties of Boronized Polyisobutylene Succinimide

Polyisobutylene succinimide is typically produced by reacting polyisobutylene succinic anhydride with an amine. Highly refined lubricant base stocks are used as solvents in the production process and remain in the final product to maintain stability and physicochemical properties. Its molecular weight ranges from 500 to 10,000 Daltons but usually falls between 1,000 and 3,000 Daltons. Due to their low water solubility and low vapor pressure, they are difficult to separate into water or air.

Health Effects

Polyisobutylene succinimide, which is classified as a petroleum additive succinimide dispersant, has been evaluated for its health effects under the U.S. Environmental Protection Agency's (EPA) voluntary High Volume Production (HPV) Challenge Program. Based on the results of studies on the oral cavity and skin of animals, polyisobutylene succinimide has very low acute toxicity. It does not result in irritation or allergic reactions to the skin or eyes. Test results from similar products show that exposure to PIBSA will not have adverse effects on the skin and will not cause reproductive or developmental toxicity if inadvertently ingested. The high molecular weight makes PIBSA less biologically active, which is consistent with the lack of adverse effects of the product. It has been observed that polyisobutylene succinimide is not mutagenic or chromosomally teratogenic and is, therefore, not a carcinogen.

Boronized Polyisobutylene Succinimide 

Environmental Impact

Polyisobutylene succinimide, classified as a succinimide dispersant, has also been assessed for its environmental impact by the U.S. EPA (Environmental Protection Agency) voluntary High Volume Volume (HPV) Challenge Program. HPV assessment determined that polyisobutylene succinimide is not readily biodegradable and does not contain easily hydrolyzable functional groups. In addition, it cannot be photodegraded, and its low water solubility means that water is not an ideal carrier for it, thus limiting its potential for accumulation in organisms. Ecotoxicity studies show that they have low acute aquatic toxicity.

Regulatory Information

Polyisobutylene succinimide monomers and other reactants are currently subject to the European Commission's REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) regulations. Lubrizol is working with suppliers to ensure that registration documents and Chemical Safety Reports for such substances are submitted to the ECHA (European Chemicals Agency) within the required deadlines. Polyisobutylene succinimide is approved in most industrialized countries through a global notification as described in the Lubrizol Safety Data Sheet.

Boronized Polyisobutylene Succinimide 

Environmental Dissemination

Lubrizol's polyisobutylene succinimide products are primarily sold to industrial customers who formulate motor oils. Workers, professional workers, and consumers working in such industrial production environments may be exposed to polyisobutylene succinimide through dermal penetration. Due to its low volatility, exposure through inhalation is less likely. However, certain industrial operations performed at higher temperatures increase the potential for inhalation exposure. Due to the low levels of polyisobutylene succinimide in formulated products and finished engine oils, the potential for exposure by technicians and consumers is low. The degree of exposure will differ depending on the conditions of use, such as in a closed system, as well as the length and frequency of use. The potential for oral exposure is low and limited to accidental ingestion. Indirect exposure via the environment is negligible due to the low water solubility, low volatility, and low content in formulated products.

Risk Management

Information about the safe handling of these products is disseminated primarily through the provision of material safety data sheets to workers who manufacture the products and formulate engine oils. These documents provide a variety of safety information, including hazard warnings and risk management measures. They describe the engineering controls, work methods, and personal protective equipment required to control exposure during manufacturing and compounding processes. Good industrial hygiene practices should also be implemented to avoid skin contact. Environmental risks can be significantly mitigated by strictly preventing leakage and discharge into nature.

Boronized Polyisobutylene Succinimide 

In Conclusion

Lubrizol's polyisobutylene succinimide is designed to meet the special protection needs of various types of engines. Their outstanding physical and functional properties make them ideal for use in lubricants that enhance engine durability and performance. The EPA HPV Program has evaluated representative analogs of polyisobutylene succinimide, and there is currently no evidence that it can cause skin or eye irritation or produce an allergic skin reaction. It has less impact on health and the environment. Risks can be effectively managed by implementing appropriate engineering controls, work procedures, environmental emission controls and regulations, and wearing personal protective equipment.


Infomak is dedicated to the technology development of special oil additives, combined the Technology of nanomaterials developed dry lubricant and oil additives two series. It accepts payment via Credit Card, T/T, West Union and Paypal. Infomak will ship the goods to customers overseas through FedEx, DHL, by air, or by sea. If you are looking for high-quality TR-108 Long-Chain Linear Alkyl Benzene High Base Synthetic Calcium Sulfonate, please feel free to contact us and send an inquiry. (emma@rboschco.com).


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