Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1987-12-04
1990-11-13
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525380, C08F 1602
Patent
active
049702645
ABSTRACT:
A metal treatment solution comprising an effective amount of a soluble or dispersible compound which is a derivative of a polyphenol. The present invention comprises novel derivatives of polyphenol compounds useful in the treatment of the surface of metal articles. The present invention also encompasses novel surface treatment solutions or dispersions, and methods of using these solutions or dispersions. The compositions of the present invention include amine oxide containing polyphenol compounds and derivative thereof. The molecular weight of the polyphenols used in derivatives of the present invention have molecular weights of from about 360 to about 30,000 or greater. The resulting derivatives of the present invention typically have a molecular weight of up to about 2,000,000 with molecular weights within the range of about 700 to about 70,000 being preferred.
REFERENCES:
patent: 4376000 (1983-03-01), Lindert
patent: 4424272 (1984-01-01), Taylor
patent: 4433015 (1984-02-01), Lindert
patent: 4457790 (1984-07-01), Lindert et al.
patent: 4517028 (1985-05-01), Lindert
patent: 4544727 (1985-10-01), Ema et al.
Metal Finishing Guidebook and Directory, pp. 590-603 (1972).
U.S. Ser. No. 128,672, filed Dec. 4, 1987, entitled "Treatment and After-Treatment of Metal with Polyphenol Compounds".
U.S. Ser. No. 128,673, filed Dec. 4, 1987, entitled "Treatment and After-Treatment of Metal with Carbohydrate Modified Polyphenol Compounds".
Metal Handbook, vol. II, 8th Edition, pp. 529-547, American Society for Metals.
Lindert Andreas
McCormick David R.
Pierce John R.
Brennan Michael P.
Henkel Corporation
Jaeschke Wayne C.
Sarofim N.
Schofer Joseph L.
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