Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1981-10-15
1982-11-23
Milestone, Norma S.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
546242, C07D21146
Patent
active
043606750
ABSTRACT:
Homopolymers and copolymers of vinyl ethers of the formula I ##STR1## in which R is hydrogen or methyl and R.sup.1 is hydrogen C.sub.1 -C.sub.8 -alkyl, benzyl, allyl or C.sub.1 -C.sub.2 -acyl, are effective stabilizers for plastics, especially to protect them against photochemical degradation. The monomeric vinyl ethers of the formula I are novel compounds, which can be prepared from the corresponding piperidinols by vinylation by means of acetylene or by transvinylation by means of vinyl ethers or vinyl esters.
REFERENCES:
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patent: 3984371 (1976-10-01), Murayama et al.
patent: 4014887 (1977-03-01), Randell et al.
patent: 4046737 (1977-09-01), Holt et al.
W. Reppe, Annalen der Chemie 601, 81-111 (1956).
Ciba-Geigy Corporation
Falber Harry
Milestone Norma S.
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