摘要:
The invention provides novel 4-carbamoyl derivatives of 1-oxa-3-oxo-4,8-diaza-spiro-[4,5]-decanes and their preparation from 1 oxa-3-oxo-4,8-diaza-spiro-[4,5]-decanes and isocyanates. The products are suitable light stabilizers for thermoplastics.
摘要:
Novel derivatives of 2,2,6,6-tetraalkylpiperidone-4-oximes constitute excellent stabilizers for synthetic polymer compositions against the action of ultraviolet radiation and heat. The compounds can be used either per se or in admixture with known stabilizers.
摘要:
The present invention relates to mixtures comprising the compound I in a proportion of 65-95% by weight, the compound II in a proportion of 5-35% by weight and the compound III in a proportion of 0-10% by weight wherein the substituents are as defined in the description, and to mixtures with other compounds. The mixtures are suitable for stabilizing organic material against the effect of light and heat.
摘要:
Polytriazinylpiperidylamines of the general formula ##STR1## are obtained by reacting cyanuric halides with a monofunctional amino compound and a difunctional amine, it being necessary for at least the difunctional amine to be substituted by a polyalkylpiperidyl radical. The new resinous polymers have a very low volatility. They have an atactic structure and are used to stabilize synthetic polymers towards photoinduced oxidative degradation.
摘要:
Poly-bis-triazinylimides of the formula ##STR1## are prepared from bis-(2,4-dichloro-1,3,5-triazin-6-yl)imides and polyalkylpiperidylamines.They are used as light stabilizers for polymers.
摘要:
Poly-bis-triazinylaminotriazinylamines are prepared from cyanuric chloride, triazinylamines and two different diamino compounds. They are light stabilizers, of low volatility and resistant to migration, for synthetic polymers.
摘要:
Triazinylaminotriazines of the general formula ##STR1## which are used as stabilizers for polymers, are prepared by reacting a cyanuric halide with amines containing triazinyl and polyalkylpiperidylamino groups.
摘要:
The invention provides derivatives of polyalkyl-1-oxa-diaza-spirodecanes prepared from compounds of the formula ##STR1## in which X is ##STR2## and mono- or dihalo-hydrocarbons by alkylation at the nitrogen atom of the 5-membered ring, and the salts thereof. The novel compounds are migration-resistant light stabilizers of low volatility for synthetic polymers.
摘要:
The invention relates to a process for the stabilization of halogen-free or halogen-containing synthetic polymers against the degradation by light and heat, which comprises the addition of special 1,3,5-triaza-7-adamantanyl ureas to the polymers.
摘要:
The present invention provides novel organo-tin compounds of the formula ##STR1## AND THEIR USE AS STABILIZERS FOR HALOGEN CONTAINING POLYMERS. As compared to the known tin stabilizers, the tin compounds of the invention have improved stabilizing properties at identical tin content.