Claims
- 1. A heterogeneous mixture of polyethylene terephthalate (PET) material mixture which is suitable for subsequent processing, comprising:a single batch mixture of heterogeneous PET material which has a relatively wide distribution of intrinsic viscosity (IV) values, which are primarily within the range of 0.60 to 0.80 dl/g, but as high as 0.90 dl/g, and wherein said single batch mixture has been derived from an initial mixture comprising substantially crystalline flake segments and substantially non-crystalline chunk segments from which said substantially non-crystalline chunk segments have been removed such that said mixture comprises substantially only said substantially crystalline flake segments, whereby when said heterogeneous mixture of said PET materials comprising substantially only said substantially crystalline flake segments is processed further so as to increase said intrinsic viscosity (IV) values of said PET materials, the generation of a substantial amount of heat of crystallization within said processed mixture of said PET materials will be effectively prevented.
- 2. A mixture as set forth in claim 1, wherein:said further processed PET materials have an intrinsic viscosity (IV) value range of 0,90 dl/g to 1.5 dl/g.
- 3. A heterogeneous solid stated polyethylene terephthalate (PET) material for use in making high-performance strapping, comprising:a single batch mixture of heterogeneous PET material which has a relatively wide distribution of intrinsic viscosity (IV) values, which are primarily within the range of 0.60 to 0.80 dl/g, but as high as 0.90 dl/g, wherein said single batch mixture has been derived from an initial mixture comprising substantially crystalline flake segments and substantially non-crystalline chunk segments from which said substantially non-crystalline chunk segments have been removed such that said mixture comprises substantially only said substantially crystalline flake segments, and wherein said single batch mixture has been solid stated directly while in said heterogeneous mixture state so as to increase said intrinsic viscosity (IV) values of said PET materials without generating a substantial amount of heat of crystallization.
- 4. A heterogeneous solid stated polyethylene terephthalate (PET) materials as set forth in claim 3, wherein:said solid stated PET material has an intrinsic viscosity (IV) value range of 0.90 dl/g to 1.5 dl/g.
- 5. A high performance plastic strap, comprising:a polyethylene terephthalate (PET) material which has been solid stated directly from a single batch heterogeneous mixture of PET material which has a relatively wide distribution of intrinsic viscosity (IV) values, which are primarily within the range of 0.60 to 0.80 dl/g, but as high as 0.90 dl/g, and wherein said single batch heterogeneous mixture has been derived from an initial mixture comprising substantially crystalline flake segments and substantially non-crystalline chunk segments from which said substantially non-crystalline chunk segments have been removed such that said said initial mixture comprises substantially only said substantially crystalline flake segments so as to increase said intrinsic viscosity (IV) values of said PET materials without generating a substantially amount of heat of crystallization.
- 6. A high-performance plastic strap as set forth in claim 5, wherein:said solid stated polyethylene terephthalate (PET) material has an intrinsic viscosity (IV) value range of 0.90 dl/g to 1.5 dl/g.
CROSS-REFERENCE TO RELATED PATENT APPLICATION
This patent application is a Continuation-In-Part (CIP) Patent Application of U.S. patent application Ser. No. 08/794,538 filed on Feb. 3, 1997, now U.S. Pat. No. 5,886,058, in the name of Donald Van Erden et al. and entitled INLINE SOLID STATE POLYMERIZATION OF PET FLAKES FOR MANUFACTURING PLASTIC STRAP, and is being filed herewith under 37 CFR 1.53(b).
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Continuation in Parts (1)
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Number |
Date |
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Parent |
08/794538 |
Feb 1997 |
US |
Child |
09/170808 |
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US |