The ornamental design for a spraycap for aerosolcontainer, as shown and described.
FIG. 1 is a perspective view of a spray cap for aerosol container showing our new design;
FIG. 2 is another perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a top view thereof; and,
FIG. 8 is a bottom view thereof.
The evenly broken lines represent parts of the article that form no part of the claimed design. The dot-dash line represents the boundaries of the claim and form no part thereof.