Inventor

KURUMADA TOMOYUKI

JP36 patents

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

KURUMADA TOMOYUKI

SANKYO CO

Thiazolidine derivatives, their preparation and compositions containing them

Tris(piperidylaminotriazylamino) compounds, their preparation and their use as polymer stabilizers

Piperidine derivatives

Stabilization of synthetic polymers by penta-or-hexa-substituted 4-piperidinol derivatives

Piperidine derivatives and their use as stabilizers

Triazine derivatives

Piperidine derivatives and their use as stabilizers

Piperidine-spiro-hydantoin derivatives and their use as stabilizers

Polymers containing polyalkylpiperidines and use thereof as stabilizers

2,2,6,6-Tetramethylpiperidine derivatives

Polyalkylated 4-aminopiperidine derivatives

Stabilization of synthetic polymers

Stabilization of synthetic polymers

Process for preparing triacetonamine

Piperidine derivatives

Stabilization of poly(mono-olefins)

Piperidine derivatives

1,3,8-Triazaspiro 4.5!decane-2,4-dione polymer stabilizers

Polymer compositions containing piperidine derivatives as stabilizers

Piperidine derivatives

Novel piperidine derivatives for the stabilization of synthetic polymers

Resistant resin compositions

Piperidine-spiro-hydantoin derivatives

Polyalkylpiperdine side chain stabilizers for synthetic polymer compositions

Piperidine-spiro-hydantoin derivatives and their use as polymer stabilizers

Hydantoin derivatives and their use as polymer stabilizers

Synthetic polymer stabilizers

4,4&#39;-Bipiperidylidene derivatives and their use as stabilizers

Process for preparing triacetonamine

4-Piperidone derivatives, their preparation and their use as stabilizers

4,4-(O-phenylenedioxy)-2,2,6,6-tetramethyl piperidine

Piperidine derivatives and their use as polymer stabilizers

Phenylalkanoic acid esters and their use as antioxidants

CIBA GEIGY CORP

Derivatives of 4-aminopiperidine as stabilizers for polymers

Stabilization of polymers by penta- or hexa-substituted 4-piperidinol derivatives

Derivatives of 4-oxopiperidines and their use as polymer stabilizers

4,4'-Bipiperidylidene derivatives and their use as stabilizers