Inventor

NAKAHARA YUTAKA

JP68 patents

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

NAKAHARA YUTAKA

ADEKA ARGUS CHEMICAL CO LTD

Polycarbonate resin compositions having improved resistance to deterioration when exposed to light and containing alkylidene bis(benzotriazolyl phenols)

2,2,6,6-Tetramethyl-4-piperidyl carboxylic acid esters and amides of mono and poly alcohols, phenols and amines as stabilizers for synthetic polymers

2,6-Di-tertiary butyl phenyl pentaerythritol spiro bis-phosphites enhancing the stability to heat and light of synthetic resin

Hydrocarbyl(polyphenol)-poly(2,2,6,6-tetramethyl piperidyl-1,3,5-triazines) as stabilizers for synthetic polymer compositions

Oligomers of 2,2,6,6-tetramethylpiperidinol polycarboxylic acid esters and synthetic polymer compositions

Poly(piperidylamine) alkanes and synthetic resin compositions stabilized thereby

Ortho-substituted aryl phosphite additive composition

Radiation sensitizer

Poly(2,2,6,6-tetramethyl piperidyl amino)-1,3,5-triazines as stabilizers for synthetic polymer compositions

Poly-2,2,6,6-tetramethyl piperidyl amino spiro glycol ether-1,3,5-triazines

Cyclic bis and tris phosphites and stabilized synthetic resin compositions

Hindered bisphenol diphosphonites and stabilized synthetic resin compositions containing the same

2,6-Di-tertiary butyl phenyl phosphites and synthetic resin compositions having enhanced stability to heat and light

Hindered bis-phenol phenyl phosphites and synthetic resin compositions having enhanced stability to heat and light

Stabilizer for polyolefin resin

N,N&#39;,N&#34;-tris((2,2,6,6-tetramethyl-4-piperidyl)triazinyl) undecane triamines as stabilizers for synthetic polymers

Alkylidene bisphenol phosphites and phosphates having 2,2,6,6-tetramethyl piperidinyl groups and synthetic resin composition

Poly(piperidylamine) alkanes and synthetic resin compositions stabilized thereby

2,2,6,6-Tetramethyl-4-piperidyl spiro aliphatic ethers and stabilizers for synthetic polymers

Stabilized vinyl chloride polymer comprising a phenylethylidene aryl phosphite

Weatherability and adherence of polypropylene

Weatherability and adherence of polypropylene

Vinyl benzyl 2,2,6,6-tetramethyl piperidines

Poly(2,2,6-tetramethyl piperidyl amino)-1,3,5-triazines as stabilizers for synthetic polymer compositions

Hydrocarbyl(polyphenol)-poly(2,2,6,6-tetramethyl piperidyl-1,3,5-triazines) as stabilizers for synthetic polymer compositions

Bis(2,2,6,6-tetramethylpiperidyl-1,3,5-triazinyl)-spirodiamines and spiroglycol ethers and synthetic resin compositions containing the same

Tetra-(2,2,6,6-tetramethyl-4-piperidinyl)-3-methyl-5-(1&#39;2&#39;-biscarboxylate)-ethyl-cyclohexane or 3-cyclohexene-1,2-dicarboxylates and synthetic resin compositions containing the same

Synthetic resin compositions containing 2,2,6,6-tetramethyl piperidinyl triazines

ARGUS CHEM

Glycol carbonate ester stabilizers for synthetic resins

Phenolic ester synthetic resin stabilizers

Process for preparing 3-alkylthiopropionic acid esters

Stabilized composition comprising a dihydric alcohol thiodipropionic acid ester

Phenolic ester synthetic resin stabilizers

Process for preparing 4-piperidone spiroketal compounds

Stabilizers for synthetic polymers comprising 2,2,6,6-tetramethyl-4-piperidyl ether alcohol or ether, phosphonic acid ester and phenolic antioxidant

Stabilizers for synthetic polymers comprising 2,2,6,6-tetramethyl-4-piperidyl carboxylic acid ester, phosphonic acid ester and phenol

Synthetic resin stabilizer comprising an organic phosphite and a carbonate

Synthetic resin stabilizer comprising a thioether ester and hindered phenolic carbonate

Carbonate ester stabilizers for polymers

Ortho-substituted phenyl phosphite additive composition

Ethylene polymer composition

Inorganic organic coester stabilizers

Process for preparing 4-piperidone spiroketal compounds

Organophosphonate coester stabilizers

NAKAHARA YUTAKA

Bis-phenol phosphates as clarifiers for polyolefin resins

Polyphenylene sulfide resin compositions having improved resistance to deterioration when exposed to light and containing alkylidene bis (benzotriazolylphenols)

HITACHI CHEMICAL CO LTD

Stabilized synthetic resin composition

LEISTNER WILLIAM E

Phenylethylidene-substituted phenyl polyphosphites

AKUTSU MITSUO

Polyphenylene oxide resin composition stabilizer

ASAHI DENKA KOGYO KK

Piperidine compounds

N,N',N"-tris((2,2,6,6-tetramethyl-4-piperidyl)triazinyl) undecane triamines as stabilizers for synthetic polymers

Tetra-(2,2,6,6-tetramethyl-4-piperidinyl)-3-methyl-5-(1'2'-biscarboxylate)-ethyl-cyclohexane or 3-cyclohexene-1,2-dicarboxylates and synthetic resin compositions containing the same