Polymerizable composition

A polymerizable composition formed by mixing a first and a second composition;

• said first composition, comprising:
• a peroxide, which decomposes by at most fifty percent by weight of said peroxide within 10 hours at a temperature of at least 75.degree. C.,
• a polymerizable monomer, and from 0.01 to 0.2 percent by weight of amine,
• said second composition comprising a proton donor, and a metal containing compound,
• said polymerizable composition having from 0.2 to 5 percent by weight of said peroxide, from 5 to 99 percent by weight of said polymerizable monomer, and from 0.1 to 3 percent by weight of said proton donor, and from 0.02 to 3 percent by weight of said metal containing compound,
• said polymerizable composition having an initial setting time, said initial setting time being the setting time measured before sufficient storage of said first composition and said second composition, said setting time being started by mixing said first composition and said second composition,
• and said polymerizable composition having a storage setting time measured after storage of said first composition and said second composition for at least 12 months effectively at a temperature of at least 23.degree. C., the time period of said initial setting time being within 2 minutes of the time period of said storage setting time whereby the difference between the initial and storage setting times is less than 2 minutes.

A polymerizable composition formed by mixing a first and a second composition;

• said first composition, comprising:
• a peroxide is selected from the group consisting of tert-butyl peroxy benzoate, tert.-butyl peroxy (3,5,5-trimethylhexanoate), 2,5-dimethyl-2,5-di(benzolyperoxy)hexane, tert.-butylamyl peroxide, di-(tert.-butyl) peroxide, cumenhydo peroxide, tert.-butylhydro peroxide, tert.-butylperoxy-(3,5,5-tri-methylhexanoate) and tert.-butylperoxy-2-ethylhexyl carbonate, and
• a polymerizable monomer,
• said second composition comprising a proton donor, and a metal containing compound,
• said polymerizable composition having from 0.2 to 5 percent by weight of said peroxide, from 5 to 99 percent by weight of said polymerizable monomer, and from 0.1 to 3 percent by weight of said proton donor, and from 0.02 to 3 percent by weight of said metal containing compound,
• said polymerizable composition having an initial setting time and a storage setting time measured after storage of said first composition and said second composition for 12 months effectively at a temperature of at least 23.degree. C., the time period of said initial setting time being within 2 minutes of the time period of said storage setting time whereby the difference between the initial and storage setting times is less than 2 minutes.

A polymerizable composition formed by mixing a first and a second composition;

• said first composition, comprising:
• a peroxide, an amine, and
• a polymerizable monomer,
• said second composition comprising a proton donor, and a metal containing compound,
• said polymerizable composition having from 0.2 to 5 percent by weight of said peroxide, from 5 to 99 percent by weight of said polymerizable monomer, and from 0.1 to 3 percent by weight of said proton donor, and from 0.02 to 3 percent by weight of said metal containing compound,
• said polymerizable composition having an initial setting time and a storage setting time measured after storage of said first composition and said second composition for 12 months effectively at a temperature of 23.degree. C., the time period of said initial setting time being within 2 minutes of the time period of said storage setting time whereby the difference between the initial and storage setting times is less than 2 minutes.