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Inventor: W ullscheidt; Wilhelm
Address: Bottrop, DE
No. of patents: 2
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 5596068 |
Polyester resin for producing articles having high transparency and a neutral color |
January 21, 1997 |
| The invention relates to a polyester resin for producing a thick-walled bottles having high transparency and a neutral color. The polyester resin, containing at least one antimony compound, one germanium compound and one phosphorus compound, is produced by reacting a dicarboxylic acid wi |
| 5128021 |
Pitch from coal tar pitch, method of its production, as well as application of such pitch materi |
July 7, 1992 |
| A novel pitch material made from coal tar pitch has:a) mesophase content of .ltoreq.2%,b) content of toluene-insolubles (.beta.-resin) between 58 and 75%,c) content of quinoline-insolubles of <2%,d) softening point in the 200.degree. to 300.degree. C. range, according to the Kramer-Sarnow (KS |
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