A COMPOSITION FOR SMC/BMC AUTOMOTIVE PARTS

WIPO Patent Application WO2003055946

A8

The invention relates to a composition for SMC/BMC automotive parts comprising: (a) an unsaturated polyester resin, (b) a suitable low profile or low shrink additive or a mixture thereof; (c) a mixture of at least two peroxides neither of which contains a benzoyl group, one having a one-hour half-life temperature of 100°C or lower and the other having a one-hour half-life temperature of higher than 100°C, and (d) a transition metal salt or complex. Preferably, the additive does not contain benzene. It is further preferred that a mixture of two peroxides is used, one having a one-hour half-life temperature of 75-95°C and the other having a one-hour half-life temperature of 105-125°C. Preferably, the composition comprises a cobalt salt or complex, a copper salt or complex, or a mixture thereof. The invention further relates to a process for preparing an SMC or BMC automotive part comprising curing said composition. The use of the composition of the present invention allows for the preparation of SMC/BMC products having a low total volatiles content and a low smell.

VAN DE BOVENKAMP-BOUWMAN ANNA (NL)
ROOLVINK-VERHAAGEN MAATJE GERH (NL)
REIJNDERS JOHANNES MARTINUS GE (NL)

PCT/EP2002/014516

May 21, 2004

December 18, 2002

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AKZO NOBEL NV (NL)
VAN DE BOVENKAMP-BOUWMAN ANNA (NL)
ROOLVINK-VERHAAGEN MAATJE GERH (NL)
REIJNDERS JOHANNES MARTINUS GE (NL)

C08F299/04; C08K3/24; C08L67/06; C08L25/06; C08L31/04; C08L67/02; C08L75/04; (IPC1-7): C08L67/06; C08K5/14

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