Any association or corporation authorized to conduct a building and loan association, savings and loan association, building society or other similar business under prior law, by whatever name known, which has substantially the same purpose as an association, upon the effective date of the Savings and Loan Act, is subject to the provisions of the Savings and Loan Act unless otherwise expressly exempted, and shall thereafter be deemed to exist by virtue of the Savings and Loan Act. The name, rights, powers, privileges and immunities of each such association or corporation shall be governed, controlled, construed, extended, limited and determined by the provisions of the Savings and Loan Act as if the corporation had been incorporated pursuant thereto, and the articles of association, certificate of incorporation or charter, however entitled, bylaws and constitutions or other rules of every corporation are amended to conform with the provisions of the Savings and Loan Act, with or without the issuance or approval by the supervisor of conformed copies of the documents, and the same are void to the extent that they are inconsistent with the provisions of the Savings and Loan Act except that obligations or any valid contract existing at the effective date of the Savings and Loan Act is not impaired by the provisions of the Savings and Loan Act and no association shall be required to change its name.