Claims
- 1. A co-layer stretch blow molding preform, comprising:an outer plastic preform; and an inner plastic preform, said inner plastic preform including an infrared energy absorbing material which is substantially absent from the outer plastic preform.
- 2. The co-layer stretch blow molding preform according to claim 1, wherein the inner plastic preform and outer plastic preform are prepared from PET, PEN, polystyrene, polyacrylates, polymethacrylates, polyvinyl chloride, polyacrylonitrile, polyvinyl acetate, polyvinyl alcohol, polyolefins, polyesters, polycarbonates, polyethers, polyamides, as well as derivatives, blends, and copolymers thereof.
- 3. The co-layer stretch blow molding preform according to claim 1, wherein the inner plastic preform and outer plastic preform are prepared from different plastics.
- 4. The co-layer stretch blow molding preform according to claim 1, wherein the inner plastic preform is prepared from PEN.
- 5. The co-layer stretch blow molding preform according to claim 1, wherein the outer plastic preform is prepared from PET.
- 6. The co-layer stretch blow molding preform according to claim 1, wherein the infrared energy absorbing material is a colorant.
- 7. A co-layer stretch blow molding preform, comprising:an outer PET preform; and an inner PEN preform, said inner PEN preform including an infrared energy absorbing colorant which is substantially absent from the outer PET preform.
Parent Case Info
This Patent Application is a Divisional of U.S. patent application Ser. No. 09/264,404 filed Mar. 8, 1999 U.S. Pat. No. 6,261,656.
US Referenced Citations (10)
Non-Patent Literature Citations (1)
Entry |
Streitwieser et al., Introduction to Organic Chemistry, 4th Ed., (1995), Section 17.10, pp. 471-473. |