Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1987-12-04
1990-10-16
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526342, 525 30, C08F 1224
Patent
active
049635964
ABSTRACT:
A metal treatment solution comprising an effective amount of a soluble or dispersible compound which is a derivative of a polyphenol. Novel derivatives of polyphenol compounds useful in the treatment of the surface of metal articles is provided. Novel surface treatment solutions or dispersions, and methods for using these solutions is provided. Carbohydrate-modified polyphenol compounds are utilized in the present invention. The molecular weight of the polyphenols used in the preparation of derivatives of the present invention are in the range of about 360 to about 30,000 or greater. The resulting derivatives will 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:
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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.
Lindert Andreas
McCormick David R.
Pierce John R.
Zimmermann William D.
Brennan Michael P.
Henkel Corporation
Jaeschke Wayne C.
Sarofim N.
Schofer Joseph L.
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