Am I entitled to part value of my husband's business?

We live in PA and have been separated for 6 years. Neither one of us has filed for divorce. He started the business while we were married and living together. I helped with it while I lived with him. I never received child support for them. I received money here and there. I have dime debt that I paid down when I started living on my own and in school. I just found out that he purchased a house after years of him telling me he doesn’t make any money. From what I read, I have no claim for the equity in house since we were separated when he purchased it. He saved a nice chunk for the down payment but only claims to make 25k. So even though I didn't want to go after business in the past, I feel it is the right thing to do Now. I'm struggling working 2 jobs while my husband has a 500k house. Am I still entitled to part of business if I've been separated for so long. I am going to apply for child support. I was always afraid in past because I assumed I made more money than he made.