MS2

Description

[Linden Nazareth] A brand name for a Polycyclohexanone resin prepared as the condensation product of methylcyclohexanone. Howards of Ilford first polymerized cyclohexanone resin in 1939. It was marketed as 'Resin MS2' and 'MS2 Resin' in 1941. MS2A resin, introduced in 1961, was prepared by treating MS2 resin with sodium borohydride to reduce the carbonyls to hydroxyl groups thus forming a polycyclohexanol resin. MS2B was introduced in 1963; it was made by the same reduction process but used AW-2, another polycyclohexanone resin, as a starting material. MS2B was discontinued in 1967. In the late 1960s, Howards of Ilford was acquired by Laporte Industries which discontinued the manufacturing of MS2A. The rights to MS2A were purchased by Linden Chemicals in 1993 and production has resumed.

See MS2A.

Synonyms and Related Terms

ketone resin

Risks

• Ingestion may be harmful.
• Skin contact may cause irritation.

Physical and Chemical Properties

• Soluble in turpentine and mineral spirits.
• Tg = 54.1 C
• Refractive Index = 1.518

Resources and Citations

• V. Routledge (Linden Nazareth) "MS2A Resin - The History of its Development" Conservation News, No. 70, November 1999.

• R.de La Rie, A.Shedrinsky, "The Chemistry of Ketone Resins and the Synthesis of a Derivative with Increased Stability and Flexibility" Studies in Conservation, 34:9-19, 1989.

• Hermann Kuhn, Conservation and Restoration of Works of Art and Antiquities, Butterworths, London, 1986

• Paintings Specialty Group, Painting Conservation Catalog, Wendy Samet (ed.), AIC, Washington, DC, 1998

• Teri Hensick, contributed information, 1998