Vestopal W, also known as polyvinyl acetate (PVAc), is a water-based, synthetic polymer emulsion that serves as a versatile adhesive, sealant, and binder. It is widely used in various industries, including construction, woodworking, and paper processing, due to its excellent adhesion, water resistance, and flexibility. The chemical is derived from vinyl acetate monomers and is known for its eco-friendly properties, as it emits low volatile organic compounds (VOCs) and is biodegradable. Vestopal W's properties can be tailored for specific applications by adjusting the degree of polymerization and the addition of various additives, making it a popular choice for a broad range of粘合剂 and coatings.
The CAS Registry Mumber 78920-44-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,9,2 and 0 respectively; the second part has 2 digits, 4 and 4 respectively. Calculate Digit Verification of CAS Registry Number 78920-44: (7*7)+(6*8)+(5*9)+(4*2)+(3*0)+(2*4)+(1*4)=162 162 % 10 = 2 So 78920-44-2 is a valid CAS Registry Number.