Prepress sealer for use in hardboard manufacture

Details Prepress sealer for use in hardboard manufacture Prepress sealer for use in hardboard manufacture

C - Chemistry, Metallurgy

08

L

18/1010, 154/97

C08L 97/02 (2006.01) B27N 1/00 (2006.01) B27N 3/00 (2006.01) C08K 5/20 (2006.01) C09J 133/06 (2006.01) C08L 61/20 (2006.01)

Patent

CA 2034130

A prepress sealer for use in the process of making wood composition board is provided. The prepress sealer incorporates a crosslinking resin and an aqueous dispersion of acrylic polymer particles. The acrylic polymer particles have a THF gel content of greater than about 70%. Use of the prepress sealer provides improved press release during board manufacture and improved surface toughness and water resistance to the produced board.

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