Semi-thermoplastic molding composition having heat-stable custom

Details Semi-thermoplastic molding composition having heat-stable custom Semi-thermoplastic molding composition having heat-stable custom

1995-02-13

1997-06-03

Merriam, Andrew E. C.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

522 90, 522104, 522908, 528950, 433223, 433218, 433219, A61C 508, A61C 500

Patent

active

056355459

ABSTRACT:
Thermoplastic molding compositions are made from a mixture of thermoplastic material (for example, polycaprolactone), a free-radically polymerizable resin (for example, a urethane diacrylate oligomer), and free-radical initiator (for example, a visible-light cure photoinitiator). The mixture is solid at 38.degree. C., has a melting or softening point that comfortably can be withstood by oral tissues, and can be imprinted with a heat-stable custom shape memory and semi-thermoplastic properties by shaping the composition to a desired shape and then causing or permitting the resin to undergo polymerization.

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