Abstract: A method of stabilizing an acid cured coating formulation against photo and/or thermal degradation without adverse effect on acid cure is disclosed. The method discloses incorporating a stabilizingly effective amount of a hindered amine light stabilizer (HALS) represented by Formula I: ##STR1## wherein R is a saturated or unsaturated, optionally alkyl- or alkenyl-substituted alkylene or cycloalkylene radical having 2-20 C-atoms and R' is selected from the group consisting of:hydrogen;an alkyl radical having 1-20 C-atoms;an alkenyl radical having 3-5 C-atoms;an aralkyl radical having 7-12 C-atoms;--CH.sub.2 --CH.sub.2 --CN;--CH.sub.2 --COO--alkyl;--CH.sub.2 --CH(CH.sub.3)--COO--alkyl; an acyl radical; and--(CH.sub.2 --CH.sub.2 O).sub.n H, wherein n can be 1-10.Also disclosed is an acid cured coating composition stabilized against photo and/or thermal degradation. The composition comprises: a stabilizingly effective amount of HALS represented by Formula I above.

Abstract: Polyolefin compositions which are pigmented with titanium dioxide are rendered actinic radiation stabilized by incorporating therein a C.sub.12-20 alkyl ester of 3,5-di-tert.butyl-4-hydroxybenzoic acid.

Abstract: Compounds of the formula: ##STR1## wherein at least one of the groups contains a 4-piperidinyl moiety are disclosed as light stabilizers for polymers.

Abstract: Polymers based upon a monomer of the formula ##STR1## wherein R or R.sup.1 contain a polymerizable double bond are useful as ultraviolet light stabilizers for polymers.

Abstract: A method of stabilizing a polymer which is normally subject to degradation by UV radiation by incorporating therein an ultraviolet stabilizingly effective amount of a polymer based upon a monomer of the formula ##STR1## wherein R or R.sup.1 contain a polymerizable double bond.

Abstract: Oligomers of the formula: ##STR1## wherein at least one of the substituents contains a piperidyl group are disclosed as light stabilizers for polymers. Also disclosed is a method for stabilizing a polymer which is normally subject to degradation by ultraviolet radiation, by incorporating therein an ultraviolet stabilizingly effective amount of such oligomer.

Abstract: Compounds of the formula ##STR1## wherein at least one of the groups contains a 4-piperidinyl moiety are disclosed as light stabilizers for polymers.

Abstract: Oligomers prepared from alkoxycarbonylalkyleneamino halotriazines and diamines are useful as light stabilizers for polymers subject to ultraviolet radiation degradation.

Abstract: Polymers and oligomers of the formula ##STR1## are useful as ultraviolet light stabilizers for various polymers, especially polyolefins.

Abstract: Polymers of the following monomer ##STR1## wherein R and/or R.sup.1 contains a polymerizable double bond are disclosed as light stabilizers for polymers.

Abstract: Ultraviolet light stabilizers for polymers are disclosed.

Abstract: Isopropylidenedicyclohexylene esters of 2,2,6,6-tetramethylpiperidine-4-carboxylic acid are disclosed as well as their use as light stabilizers for thermoplastic polymers such as polypropylene.

Abstract: Ketonimine dyes of the formula selected from: ##STR1## wherein X.crclbar. is a chloride, bromide, thiocyanate, sulfamate, formate, acetate, lactate, hydrogen sulfate or dihydrogen phosphate ion; and ##STR2## wherein Y is a sulfate or hydrogen phosphate ion are hydrosulfite bleachable dyes for paper.