Inventor

WIEZER HARTMUT

41 patents

⚠️ This page may combine multiple inventors who share the name “WIEZER HARTMUT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

WIEZER HARTMUT

HOECHST AG

Ethers based on polyalkyl-1-oxadiazaspirodecanes

Triazine derivatives

Substituted diazaspirodecanes, their preparation and their use as stabilizers for organic polymers, and the polymers thus stabilized

Process for the preparation of 1-oxa-3,8-diaza-4-oxo-spiro(4.5)decane compounds

Triazine stabilizers

Copolymers of substituted piperidines, their manufacture and use

Derivatives of 1-oxa-3,8-diaza-spiro-[4,5]-decanes

Polytriazinylamines, process for their preparation

High-molecular esters and urethanes containing piperidine groups, a process for their preparation

Poly-bis-triazinylaminotriazinylamines, their preparation and their use as light stabilizers for plastics, and plastics which have been stabilized with them

Triazylaminotriazines, their preparation and their use for stabilizing synthetic polymers

N-substituted triaza-adamantanyl ureas as stabilizers for thermoplastic materials

1-Oxa-4,8-diazaspiro[4,5]decanes and polymers stabilized against UV light with these compounds

Aza-adamantane compound stabilizers for organic polymer compositions

Process for stabilizing a leuco-dye solution by means of a piperidine derivative

Photopolymerizable compositions a leuco dye and a leuco dye stabilizer

Urea derivatives, process for their manufacture and their use as light protecting agents for polymers

Alkylated diaza-spirodecanes

Polyalkyldiazaspirodecanylacetic acid derivatives, a process for their preparation and their use as light stabilizers for organic polymers

Polyalkyldiazaspirodecane derivatives

Poly-bis-triazinylimides, their preparation

Phosphazenes useful as stabilizers in polymers

Substituted piperidine hydroxamides, their preparation, and their use as light stabilizers

Phosphites of polyalcohols

Urea derivatives, their preparation, and their use as light stabilizers

Bis-(alkylphenyl)-alkanecarboxylic acid hydrazides, their preparation and use

Substituted tetraalkylpiperidone-4-oximes

14-Substituted 7,15-diazadispiro- 5.1.5.3!-hexadecanes as UV stabilizers

Novel phenolic antioxidants, their preparation and their use

Novel polyalkyl-piperidine polymers, their preparation and use

Glycerol phosphites esterified with phenolcarboxylic acids

Process for the manufacture of aza-spirodecanes

Process for the preparation of 2,2,6,6-tetramethylpiperidone-4

Radiation-polymerizable composition and recording material prepared from this composition

Process for the manufacture of 7-nitro-1,3,5-triaza-adamantane

Polyalkyl-piperidine diols and process for their preparation

Substituted triazaadmantane compounds

RODE KLAUS

Polysilazane-containing coatings for increasing the conversion efficiency of encapsulated solar cells

Method for producing ceramic passivation layers on silicon for solar cell manufacture

WIEZER HARTMUT

Polytriazinyl alcohols, esters and urethanes, a process for their preparation

HOECHST CELANESE CORP

Process for preparing acyl aminophenols