name a strong alkali usually found in oven cleaners.
Since this is not my area of expertise, I searched Google under the key words "'oven cleaner' alkali" to get these possible sources:
http://www.freepatentsonline.com/EP0103466A.html
http://answers.yahoo.com/question/index?qid=20070927014128AAilS6k
http://www.patentstorm.us/patents/5364551/description.html
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.
I hope thhis helps. Thanks for asking.