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Inventor: Fritsch; Karl-Herbert
Address: Bergisch-Gladbach, DE
No. of patents: 6
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 5227458 |
Polycarbonate from dihydroxydiphenyl cycloalkane |
July 13, 1993 |
| Dihydroxydiphenyl cycloalkanes corresponding to the formula ##STR1## in which R.sup.1 and R.sup.2 independently of one another represent hydrogen, halogen, C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.6 cycloalkyl, C.sub.6 -C.sub.10 aryl and C.sub.7 -C.sub.12 aralkyl,m is an integer of fro |
| 5126428 |
Polycarbonate from dihydroxy diphenyl cycloalkane |
June 30, 1992 |
| Dihydroxydiphenyl cycloalkanes corresponding to the formula ##STR1## in which R.sup.1 and R.sup.2 independently of one another represent hydrogen, halogen, C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.6 cycloalkyl, C.sub.6 -C.sub.10 aryl and C.sub.7 -C.sub.12 aralkyl,m is an integer of fro |
| 5086159 |
Stabilized copolycarbonate from dihydroxy diphenyl cycloalkane |
February 4, 1992 |
| Copolycarbonates derived from known bisphenols and small quantities of dihydroxydiphenyl cycloalkanes corresponding to formula (I) ##STR1## wherein R.sup.1 and R.sup.2 denote, independently of one another, hydrogen, halogen, preferably chlorine or bromine, C.sub.1 -C.sub.8 alkyl, |
| 4982014 |
Dihydroxydiphenyl cycloalkanes, their production and their use for the production of high molecu |
January 1, 1991 |
| Dihydroxydiphenyl cycloalkanes corresponding to the formula ##STR1## in which R.sup.1 and R.sup.2 independently of one another represent hydrogen, halogen, C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.6 cycloalkyl, C.sub.6 -C.sub.10 aryl and C.sub.7 -C.sub.12 aralkyl,m is an integer of fro |
| 4794162 |
Preparation of high molecular weight polyarylene sulfide with mixing of polyarylene sulfide with |
December 27, 1988 |
| This invention relates to a process for the preparation of high molecular weight polyarylene sulphides from low molecular weight polyarylene sulphides by a reaction with elementary sulphur. |
| 4699745 |
Process for the production of polycarbonate injection-moulded shaped articles |
October 13, 1987 |
| The present invention relates to a process for the production of thermoplastic polycarbonate injection-moulded shaped articles from polycarbonate melt strands, which is characterized in that polycarbonate melt strands are pressed through a circular orifice with a diameter of 1 to 8 m |
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