MGA Entertainment Inc. has asked a judge to delay enforcing an order requiring it to turn over all of its Bratz dolls, models and marketing materials to rival Mattel Inc. until MGA can appeal his permanent injunction preventing the company from making and selling the toys.

In a motion for stay filed late Friday, MGA lawyers told U.S. District Court Judge Stephen Larson that carrying out his Dec. 3 order prior to its appeal to the U.S. Ninth Circuit Court of Appeals would cause irreparable damage to the Van Nuys toymaker even if it eventually won the appeal.

Larson ordered a permanent injunction after a Riverside jury this fall found that the trendy Bratz fashion dolls infringed on El Segundo-based Mattel’s copyrights. Larson already had planned not to enforce the order until after he ruled on the parties’ post-trial motions at a February hearing.

The Riverside jury awarded Mattel $100 million in damages after finding that a Mattel doll designer created the Bratz name and characters while working for the company and improperly took the idea to MGA.