Paper making and fiber liberation – Processes and products – Non-fiber additive
Reexamination Certificate
2004-03-23
2008-03-18
Griffin, Steven P. (Department: 1791)
Paper making and fiber liberation
Processes and products
Non-fiber additive
C162S158000, C162S164100, C162S168300, C162S183000, C008S188000, C008S194000, C554S035000, C554S051000
Reexamination Certificate
active
07344621
ABSTRACT:
A paper additive composition comprising an amide compound (a) obtained by reacting a polyamine and a carboxylic acid or a salt of the amide compound (a) is provided. The polyamine is shown by formula (1):in-line-formulae description="In-line Formulae" end="lead"?R—(NH—R1)n-NH2 (1)in-line-formulae description="In-line Formulae" end="tail"?(wherein R is H2N—R1or R2, and each R1is independently an alkylene group having 1 to 4 carbon atoms, R2is an alkyl group or alkenyl group having 12 to 22 carbon atoms, and n is an integer of 1 to 3); the number of carbon atoms of the carboxylic acid is 10 to 24; the amide compound is obtained by reacting the carboxylic acid at a ratio of 0.5 to 4.3 moles per 1 mol of the polyamine; and the ratio of a tertiary amine value to a total amine value of the amide compound (a) is 0.60 to 0.99.
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JP 2002-275786 A, full translation.
Asakura Kazumichi
Nakamura Yasuyuki
Tamai Tetsuya
Cordray Dennis R.
Griffin Steven P.
NOF Corporation
The Webb Law Firm P.C.
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