Inventor

CHEN FRANK J

US22 patents

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

CHEN FRANK J

EXXON CHEMICAL PATENTS INC

Organo-Al-chloride catalyzed poly-n-butenes process

Process for preparing polybutenes having enhanced reactivity using boron trifluoride catalysts (PT-647)

Immobilized Lewis Acid catalysts

Immobilized Lewis acid catalysts

Supported Lewis acid catalysts derived from superacids useful for hydrocarbon conversion reactions

Direct synthesis by living cationic polymerization of nitrogen-containing polymers

Direct synthesis by cationic polymerization of nitrogen-containing polymers

Supported lewis acid catalysts for hydrocarbon conversion reactions

Direct synthesis by living cationic polymerization of nitrogen-containing polymers

Terminally-substituted polymeric compositions from cationically polymerizable monomers and initiators

Immobilized Lewis acid catalysts

AlCl3 -catalyzed process for preparing poly-N-butenes from mixed butenes

Fixed bed process for polymerizing liquid butenes

Polybutene process

Process for preparing alkyl phenol-sulfur condensate lubricating oil additives

Method of preparing alkyl phenol-formaldehyde condensates

Immobilized Lewis Acid catalysts

Polybutene process

Preparation of linear alkyl aromatics

EXXON RESEARCH ENGINEERING CO

Succinimide lubricating oil dispersant

Polyisobutylene process

Multistep process for the manufacture of novel polyolefin lubricants from sulfur containing thermally cracked petroleum residua