Inventor

SHEEHAN MICHAEL T

US42 patents

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

SHEEHAN MICHAEL T

HOECHST CELANESE CORP

Method for preparing 4-hydroxystyrene

Hot melt adhesives containing poly(p-hydroxystyrene) homopolymers and copolymers and bonding methods employing same

Process for making low optical polymers and copolymers for photoresists and optical applications

Process for making low optical density polymers and copolymers for photoresists and optical applications

Amphoteric copolymer derived from vinylpyridine and acetoxystyrene

Polyamines derived from THPB and processes for preparing the same

Process for the preparation of 4-hydroxystyrene polymers from 4-acetoxystyrene polymers

Functionalized tris(hydroxyphenyl) compounds

Processes for preparing amines

Process for preparing coumarin sulfonates

Amphoteric copolymer derived from vinylpyridine and acetoxystyrene

Amphoteric copolymer derived from vinylpyridine and acetoxystyrene

Di-amino compounds and processes for preparing the same

Amines and processes for preparing the same

Amines derived from THPE and processes for preparing the same

Substituted phenyl compounds and processes for preparing the same

Amines derived from THPE

Di-amino compounds

Substituted benzyl amines

Substituted triphenyl compounds &amp; processes for preparing the same

Method for preparing a salt of 4-hydroxystyrene and for preparing 4-tertiary-butoxycarbonyloxystyrene therefrom

Photoactive coumarin derivatives

Method for preparing a salt of 4-hydroxystyrene and for preparing 4-tertiary-butoxycarbonyloxystyrene therefrom

Photoactive coumarin sulfonate compounds

Substituted phenyl compounds and processes for preparing the same

Processes for preparing diamino compounds

Process for preparing photoactive coumarin derivatives

DUPONT ELECTRONIC POLYMERS L P

Derivatized novolak polyhydroxystyrene from hydroxyphenylmethylcarbinol

Derivatized novolak polyhydroxystyrene

Anhydrous, liquid phase process for preparing hydroxyl containing polymers of enhanced purity

Polymer purification

Epoxy resin, blocked polyisocyanate or polymers with polyhydroxystyrenes having novolak structure

Derivatized polyhydroxystyrenes with a novolak type structure and processes for preparing the same

CHEMFIRST ELECTRONIC MATERIALS

Purification means

Preparation of homo-, co- and terpolymers of substituted styrenes

Purification means

TRIQUEST LP

Purification means

Algistats

PONT ELECTRONIC POLYMERS L P D

Derivatized polyhydroxystyrenes (DPHS) with a novolak type structure and blocked DPHS (BDPHS) and processes for preparing the same

Epoxy resins or polyisocyanates reacted with derivatized novolak polyhydroxystyrene

CHEM FIRST ELECTRONIC MATERIAL

Anhydrous, liquid phase process for preparing hydroxyl containing polymers of enhanced purity

SHEEHAN MICHAEL T

Propanoates and processes for preparing the same

Substituted triphenyl compounds & processes for preparing the same