PLASTICIZED ANAEROBIC COMPOSITION

• Main Author: BACHMANN A,US
• Format: Patent
• Language: English
• Published: 26.02.1974
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DYES; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS AS ADHESIVES

1405272 Anaerobic curing compositions LOCTITE CORP 9 Aug 1972 [9 Aug 1971] 37069/72 Heading C3P An anaerobic curing composition comprises a polymerizable acrylate ester monomer, a peroxy polymerization initiator capable of polymerizing the monomer at room temperature in the substantial absence of oxygen and from 10-30% of a primarily aliphatic polyester plasticizer having an average molecular weight of from 1800 to 15,000. Primarily aliphatic means that the molecular weight of the carbocyclic entities does not comprise more than about 20% of the molecular weight of the polyester plasticizer and preferably not more than 10%. Typical examples of polyester plasticizers are the result of condensation of adipic, azelaic, glutaric or succinic acids with ethylene glycol, propylene glycol, butylene glycol or neopentyl glycol. The polyacrylate esters used may be represented by the formula where R2 is hydrogen or halogen or C 1 to C 4 alkyl, q is 1 or more, preferably 1 to 4, and X is an organic radical containing at least two carbon atoms having a total bonding capacity of q + 1. Alternatively the polyacrylate esters may have the formula where R1 represents H, C 1 to C 4 alkyl, hydroxy C 1 to C 4 alkyl or a radical of formula where R2 is as hereinbefore defined and R3 is H, OH or a radical of formula m is at least 1, e.g. 1 to 15, and preferably 1 to 8, n is at least 1, e.g. 1 to 40, preferably 2 to 10, and p is 0 or 1. Many examples are provided. The preferred peroxy polymerization initiators have the formula R4OOH where R4 is a hydrocarbon radical of up to 18 carbon atoms, e.g. alkyl, aryl or aralkyl containing C 3 to C 12 . Accelerators containing N and S are also specified, as well as quinone inhibitors.