Pressure vessel with composite sleeve

A self scaling vessel assembly for high pressure microwave assisted chemistry, said vessel assembly comprising:

• a polymeric cylinder and a circular polymeric cap for said cylinder;
• said cylinder being closed at one end and open at the other end to receive said cap;
• said open end of said cylinder comprising a lip that is beveled inwardly from said open end;
• said circular polymeric cap having a beveled lower edge that engages said beveled lip when said cap is place upon said polymeric cylinder;
• a composite sleeve surrounding said polymeric cylinder, said composite sleeve being formed of a microwave transparent inner cylindrical tetrafluoroethylene polymeric layer, a first microwave transparent wound layer adjacent to and concentric with said inner polymeric layer in which said winding is selected from the group consisting of filaments and yarns, a structural polymer layer on said wound layer, and a microwave transparent outer tetrafluoroethylene polymeric layer on said structural polymer layer;
• a supporting frame that extends along said cylinder and across said lid and across said closed end of said cylinder for preventing said lid from being displaced from said cylinder when pressure is generated inside of said vessel;
• and
• a choke cylinder depending from said beveled lower edge of said cap, said choke cylinder having an outer diameter substantially the same as the inner diameter of said polymeric cylinder so that said choke provides a self sealing mechanism for said cylinder as pressure from a chemical reaction increases within said cylinder.