Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
2005-06-14
2008-11-04
Wyrozebski, Katarzyna (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
C524S186000, C524S447000
Reexamination Certificate
active
07446143
ABSTRACT:
A method of manufacturing a nanocomposite composition comprising forming an intercalating composition comprising 1% to about 90% by weight of a purified sodium smectite clay that contains at least 75% Na+ions based on the total interlayer exchangeable cations, that has been intercalated and thereby swollen sufficiently for polyamide monomer or oligomer intercalation, with a protonated organic, non-carboxylic acid moiety-containing onium ion swelling agent; and about 10% to about 99% of a lactam ring-containing monomer or oligomer, and heating the intercalating composition to a temperature above the melting point of the lactam to open the lactam ring and polymerize the lactam to form the polyamide while in contact with the smectite clay.
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Lan Tie
Liang Ying
Omachinski Scott
AMCOL International Corp.
Marshall & Gerstein & Borun LLP
Wyrozebski Katarzyna
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