Polyolefin-based coating composition
AssigneeTOYOBO MC Corporation
InventorsHokuto Yamasaki, Kenji Kashihara
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Abstract
The present invention provides a paint formulation that has good storage stability and weather resistance, and that is capable of forming a paint film having excellent water resistance, chemical resistance such as gasohol resistance and fuel resistance, and adhesion. The paint formulation comprises an acid-modified polyolefin (A) and a tackifier (B), and satisfies the following (a) and (b): (a) the acid-modified polyolefin (A) has crystallinity; and (b) the tackifier (B) has a double-bond equivalent of 40 or more, as defined by the formula: double-bond equivalent=weight average molecular weight/number of double bonds in a molecule, or contains no double bond.
Claims7
A paint formulation comprising an acid-modified polyolefin (A) and a tackifier (B), and satisfying the following (a) and (b):
- (a) the acid-modified polyolefin (A) has crystallinity;
- and
- (b) the tackifier (B) has a double-bond equivalent of 40 or more, as defined by the formula:
- double-bond equivalent=weight average molecular weight/number of double bonds in a molecule, or contains no double bond,
- wherein the paint formulation comprises the tackifier (B) in an amount of 60 to 400 parts by mass per 100 parts by mass of the acid-modified polyolefin (A).
Dependencies are inferred from the claim text.