Documents 15954620 Synthesis of Pentaerythritol Patent

5/11/2018 15954620 Synthesis of Pentaerythritol Patent 1/5United States Patent [19]Eek1 1 1 1 1 1 I I I 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 U l l 1 1 1 1 1 ~ I I~ ~ I I I I ~1…