Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Reexamination Certificate
2009-01-08
2010-06-29
Boykin, Terressa M (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
C264S176100, C264S219000, C524S094000, C524S381000, C524S404000, C525S418000, C525S437000, C525S438000, C525S444000, C525S464000, C528S032000, C528S035000, C528S271000, C528S480000
Reexamination Certificate
active
07745563
ABSTRACT:
A method for processing polyester wastes, especially used polyester bottles, which comprises shredding, washing, drying and melting the waste mixture to obtain a starting raw material wherein a modifying agent selected from the group comprising a combination of polysiloxane and a plasticizer selected from the group of phthalates, or a combination of silazanes and silanes is added to the shredded and dried waste mixture, the amount of the modifying agent being 4 to 6% by weight, based on the waste mixture.
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Ulrich B. Steiner and Camille Borer: “The Role of Additives in the Solid State Polycondensation of Recycled Polyethylene Terephthalate (PET)” in ARC '96 Technology The Spark in Recycling Publication, Nov. 7,8, 1996.
Bulgakov Viktor
Dadiani Levan
Javakhishvili George
Boykin Terressa M
Buchanan & Ingersoll & Rooney PC
PTP Group Ltd.
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