Unsaturated beta-keto-ester acetals

Details Unsaturated beta-keto-ester acetals Unsaturated beta-keto-ester acetals

1989-06-09

1991-10-22

Springer, David B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549447, 560187, C07D31722, C07D31904, C07F 69708

Patent

active

050596985

ABSTRACT:
Polymeric .beta.-keto-ester acetals which, in combination with compounds which release acid under the action of actinic radiation, are suitable as positive photoresists, which are suitable for the production of printing plates, printed circuit boards, integrated circuits or silver-free films, can be prepared by free-radical polymerization from compounds of the formula I or II ##STR1## in which n is zero, 1 or 2 and, for example, R.sup.1 is an H atom, C.sub.1 -C.sub.10 -alkyl, phenyl or benzyl, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 independently of one another are each an H atom, halogen atom, C.sub.1 -C.sub.10 alkyl, phenyl, naphthyl or the radical --COOR.sup.9, ##STR2## or --SO.sub.2 R.sup.9, in which R.sup.9 is C.sub.1 -C.sub.6 alkyl or phenyl, X is O, S or NR.sup.10, in which R.sup.10 is an H atom, C.sub.1 -C.sub.6 alkyl or phenyl, Y is a radical of the following formulae ##STR3## in which R.sup.11 is an H atom, C.sub.1 -C.sub.6 alkyl or phenyl and Z is an aliphatic radical containing at least two methylene groups, and R.sup.12 and R.sup.13 independently of one another are each C.sub.1 -C.sub.10 alkyl, phenyl or naphthyl.

REFERENCES:
patent: 3779778 (1973-12-01), Smith et al.
patent: 4247611 (1981-01-01), Sander et al.
patent: 4248957 (1981-02-01), Sander et al.
patent: 4294909 (1981-10-01), Lee
patent: 4311782 (1982-01-01), Buhr et al.
patent: 4356252 (1982-10-01), Lee
patent: 4737426 (1988-04-01), Roth
Kosar, "Light Sensitive Systems," John Wiley & Sons, N.Y. pp. 339-352 (1965).
Chem. Abst. 87:68333n (1977).
C. A. 98:126774x (1983).
F. Gasparrini et al., Tetrahedron, vol. 40, pp. 1491-1500 (1984).
J. Org. Chem., vol. 49, pp. 5102-5105 (1984).
C. A. 78: 148429c (1973).
C. A. 82: 77588y (1975).

Affiliated with

Also associated with

Rating

Unsaturated beta-keto-ester acetals does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Unsaturated beta-keto-ester acetals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Unsaturated beta-keto-ester acetals will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-109349