Surface coating binders which are self-crosslinking when heated,

Details Surface coating binders which are self-crosslinking when heated, Surface coating binders which are self-crosslinking when heated,

1983-10-31

1985-09-17

Pertilla, Theodore E.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

2041817, 523420, 523426, 524555, 524591, 524612, 524901, 525386, 525523, 525533, C08L 6302

Patent

active

045421730

ABSTRACT:
The present invention relates to surface coating binders which are self-crosslinking when heated and are based on resin-like polyadducts, polycondensates or polymers. These binders have a mean molecular weight M.sub.n of from 500 to 10,000 and contain, on average per molecule, at least two groups of the general formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are identical or different and are each hydrogen or a methyl or ethyl radical, and additionally contain hydroxyl and/or primary and/or secondary amino groups and may or may not contain tertiary amino groups.
They can be prepared by reacting appropriate resins containing primary amino groups with cyclic carbonates, and can be used, in solution in an organic solvent, as baking finishes, as well as for the preparation of cathodic electrocoating finishes.

REFERENCES:
patent: 4071482 (1978-01-01), Hopkins, Jr.
patent: 4388435 (1983-06-01), Loch

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