Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1997-08-28
1999-02-23
Marquis, Melvyn I.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525131, 525455, 528 68, 528 75, 528 76, C08F 830
Patent
active
058745025
ABSTRACT:
The invention provides novel macromonomer and carboxyl functional polyurethanes having a high carboxyl content. The invention further provides dispersions, coatings and magnetic recording media comprising these polyurethanes, or blends or copolymers of these polyurethanes with quaternary ammonium compounds. The invention further provides novel dispersions, coatings and magnetic recording media comprising combinations of carboxyl functional polyurethanes having a high carboxyl content with quaternary ammonium polymers.
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Anderson Jeffrey T.
Blagev Albena V.
Carlson James G.
Rotto Nelson T.
Spawn Carol-Lynn
Dowdall Janice L.
Marquis Melvyn I.
Minnesota Mining and Manufacturing Company
Schulte Daniel C.
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