Piperidine derivatives, their production and stabilized polymer

Details Piperidine derivatives, their production and stabilized polymer Piperidine derivatives, their production and stabilized polymer

1984-08-27

1986-03-25

Kight, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

546 17, 546187, C08K 534

Patent

active

045784108

ABSTRACT:
There are provided piperidine derivatives having the formula ##STR1## wherein R represents a hydrogen atom or a C.sub.1 -C.sub.3 group, and R.sup.2 and R.sup.3 represent a hydrogen atom or taken together, form ##STR2## There is also provided a method for producing the above compounds which comprises reacting a tricetonamine derivative represented by the formula ##STR3## wherein R has the same meaning as described above, or its salt with sorbitol.
The subject piperdine derivatives are useful as stabilizers for preventing the deterioration of polymers by light.

REFERENCES:
patent: 3899464 (1975-08-01), Murayama et al.
patent: 4016168 (1977-04-01), Murayama et al.
patent: 4128608 (1978-12-01), Minagawa et al.
patent: 4287337 (1981-09-01), Guglielmetti et al.

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