Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5663421 | Separation of a diester of (meth)acrylic acid with a C.sub.4 -C.sub.6 -alkanediol | Helmut Lermer, Ulrich Rauh, Gerhard Nestler | 1997-09-02 |
| 5637760 | Preparation of 1,4-butanediol mono(meth)acrylate by esterification of (meth)acrylic acid with 1,4-butanediol, in which an aqueous solution of unconverted 1,4-butanediol is obtained | Helmut Lermer, Klaus Bittins, Gerhard Nestler, Gundo Brauch | 1997-06-10 |
| 5618971 | Separation of a mono(meth)acrylate of a C.sub.4 -C.sub.6 alkanediol from an aqueous solution containing a mono(methacrylate) of a C.sub.4 -C.sub.6 alkanediol and the said C.sub.4 -C.sub.6 alkanediol | Helmut Lermer, Ulrich Rauh, Gerhard Nestler | 1997-04-08 |