Silicone composition and a paper treatment agent comprising the same

Paper treated with a paper treatment agent comprising a composition comprising the following components:

• 100 parts by weight of an organopolysiloxane (A),
• 0.1 to 30 parts by weight of a crosslinking agent (B),
• 50 to 1,000 parts by weight of a polyvinyl alcohol homopolymer or copolymer (C),
• 0 to 5 parts by weight, as an active ingredient, of a catalyst (D),
• 100 to 100,000 parts by weight of water (E), 0.1 to 100 parts by weight of a surfactant (F), and
• 1 to 250 parts by weight of a silane (G) containing a hydrolyzable group, at least part of the silane (G) having been converted to silanol by mixing the silane (G) with water (E) prior to adding the silane (G) to other components, and/or a silanol containing condensate of such a silanol with a degree of polymerization of 2,
• wherein
• component (A) is a mixture of an organopolysiloxane (A2) having at least two hydroxyl groups and represented by the following average compositional formula (2):
• wherein each R1 may be same or different and is a group having 1 to 20 carbon atoms selected from the group consisting of alkyl groups, alicyclic groups, and aryl groups, whose hydrogen atoms bonded to the carbon atoms may partly be replaced with a halogen atom or a cyano group, R3 is a hydroxyl group, and X2 is the group represented by the following formula:
• wherein a2, b2, c2 and d2 are such numbers that the organopolysiloxane (A2) has a viscosity at 25 degrees C. of from 0.05 to 500 Pa·s, and b2, c2 and d2 may be zero, and
• an organopolysiloxane (A1) represented by the following average compositional formula (1):
• wherein each R1 may be same or different and is a group having 1 to 20 carbon atoms selected from the group consisting of alkyl groups, alicyclic groups, and aryl groups, whose hydrogen atoms bonded to the carbon atoms may partly be replaced with a halogen atom or a cyano group, and X1 is the group represented by the following formula:
• wherein a1, b1 and d1 are such numbers that the organopolysiloxane (A1) has a viscosity at 250° C. of from 0.05 to 500 Pa·s, and b1 and d1 may be zero, and
• component (B) is an organopolysiloxane (B2) having at least three SiH or hydrolyzable groups per molecule.