Electrical laminate

B - Operations – Transporting – 32 – B

Patent

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154/100, 154/91.

B32B 27/04 (2006.01) B32B 15/08 (2006.01) C09J 5/00 (2006.01) D21H 17/53 (2006.01) H05K 1/03 (2006.01)

Patent

CA 1149716

ABSTRACT OF THE DISCLOSURE Manufacture of an electrical laminate comprising layers of a resin impregnated fibrous substrate is dis- closed. The impregnating resin is a liquid at room tem- perature with a viscosity of 0.1 to 30 poise. When cured, it has a glass transition point from about 20°C to 80°C and comprises a cured product of a mixture of an unsatu- rated polyester polymer and a cross-linking monomer. The laminate exhibits an improved punchability in the tempera- ture range 20°C - 100°C.

355492

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