Naphtha-soluble, hydrogenated alkyl aryl ketone/formaldehyde res

Details Naphtha-soluble, hydrogenated alkyl aryl ketone/formaldehyde res Naphtha-soluble, hydrogenated alkyl aryl ketone/formaldehyde res

1983-11-10

1985-09-17

Anderson, Harold D.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

528227, C08G 230

Patent

active

045421943

ABSTRACT:
A naphtha-soluble, hydrogenated C.sub.1-4 -alkyl C.sub.6-10 -aryl ketone/formaldehyde resin, having an oxygen content of at least 6% by weight and a softening point of at least 70.degree. C. can be produced by a process comprising the step of hydrogenating a C.sub.1-4 -alkyl C.sub.6-10 -aryl ketone/formaldehyde resin under a hydrogen pressure of at least 200 bar and a temperature of 140.degree.-300.degree. C., in the presence of a nickel, palladium, palladium/copper or palladium
ickel catalyst. These resins are useful, for example, as additives to improve the hardness of varnishes and other coatings.

REFERENCES:
patent: 2380142 (1945-07-01), Ballard et al.
patent: 2600764 (1952-06-01), Harvey

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