Getting g(x) from g(x)*h(y)

"I want to obtain a list of the coefficient before 'the term that depends on y', so I want as a result:

[a, -b*x, c, d]"


I can get this.

f:a*y*log(y) - b*x*y^2 + c*y + d$

makelist(ratcoeff(f,y,i), i,0,2);

>- [d,a*log(y)+c,-b*x]

Hope this helps. 

Rich