C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
402/412, 402/513
C08F 220/28 (2006.01) B22D 31/00 (2006.01) B22F 3/26 (2006.01) B27K 3/15 (2006.01) C04B 41/48 (2006.01) C08F 20/18 (2006.01) C09D 4/00 (2006.01) C09J 4/00 (2006.01) C22C 32/00 (2006.01)
Patent
CA 1311582
ABSTRACT IMPREGNANT COMPOSITIONS FOR POROUS ARTICLES The invention relates to the sealing of small pores in porous rigid articles by impregnation with a liquid synthetic resin impregnant and subsequent curing of resin in the pores and provides a liquid (meth)acrylic ester impregnant composition comprising a free radical catalyst, an inhibitor and a higher alkyl (meth)acrylic ester and/or polyfunctional (meth)acrylic ester which has been obtained by transesterification in the presence of an organotitanium catalyst and from which the catalyst residue has not been removed. The catalyst residue has been found to improve sealing and thermal stability of the cured impregnant.
554286
Gowling Lafleur Henderson Llp
Young Peter D.
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