Inventor
POWERS KENNETH W
25 patents
⚠️ This page may combine multiple inventors who share the name “POWERS KENNETH W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
EXXON CHEMICAL PATENTS INC
13 patentsUS5162445ANov 10, 1992
Para-alkylstyrene/isoolefin copolymers and functionalized copolymers thereof
EXXON CHEMICAL PATENTS INC369 citations98
US5013793AMay 7, 1991
Dynamically cured thermoplastic olefin polymers and process for producing the same
EXXON CHEMICAL PATENTS INC138 citations98
US5548029AAug 20, 1996
Graft copolymers of para-alkylstyrene/isoolefin copolymers
EXXON CHEMICAL PATENTS INC45 citations95
US5071913ADec 10, 1991
Rubbery isoolefin polymers exhibiting improved processability
EXXON CHEMICAL PATENTS INC64 citations94
US5426167AJun 20, 1995
Para-alkylstyrene/isoolefin copolymers having substantially homogeneous compositional distribution
EXXON CHEMICAL PATENTS INC36 citations93
US5548023AAug 20, 1996
Graft copolymers of para-alkylstyrene/isoolefin copolymers as blend compatibilizers
EXXON CHEMICAL PATENTS INC23 citations92
US5453465ASep 26, 1995
Process for preparing thermoplastic compositions
EXXON CHEMICAL PATENTS INC20 citations92
US5244961ASep 14, 1993
Thermoplastic compositions and process for preparing the same
EXXON CHEMICAL PATENTS INC26 citations92
US5182333AJan 26, 1993
Production of rubbery isoolefin polymers
EXXON CHEMICAL PATENTS INC41 citations91
US5286804AFeb 15, 1994
Halogenation of star-branched butyl rubber with improved neutralization
EXXON CHEMICAL PATENTS INC36 citations90
US5430118AJul 4, 1995
Para-alkylstyrene/isoolefin copolymers having substantially homogeneous compositional distribution
EXXON CHEMICAL PATENTS INC18 citations82
US5369182ANov 29, 1994
Impact modification of polyamides
EXXON CHEMICAL PATENTS INC11 citations73
US5182350AJan 26, 1993
Ozone-resistant butyl elastomer
EXXON CHEMICAL PATENTS INC2 citations63
EXXON RESEARCH ENGINEERING CO
9 patentsUS4074035AFeb 14, 1978
Halomethylated aromatic interpolymers
EXXON RESEARCH ENGINEERING CO82 citations95
US4474924AOct 2, 1984
Stabilized slurries of isoolefin polymers
EXXON RESEARCH ENGINEERING CO52 citations92
US3948868AApr 6, 1976
Homogeneous styrene/isoolefin copolymers
EXXON RESEARCH ENGINEERING CO43 citations92
US3932371AJan 13, 1976
Process for preparing low bulk viscosity polymers
EXXON RESEARCH ENGINEERING CO29 citations82
US4245060AJan 13, 1981
Functional group containing cyclic diolefin butyl rubbers
EXXON RESEARCH ENGINEERING CO16 citations73
US4228254AOct 14, 1980
Functional group containing cyclic diolefin butyl rubbers
EXXON RESEARCH ENGINEERING CO9 citations73
US4780513AOct 25, 1988
Modified Lewis acid catalyzed polymerization
EXXON RESEARCH ENGINEERING CO9 citations71
US4358560ANov 9, 1982
Stabilized slurries of isoolefin polymers
EXXON RESEARCH ENGINEERING CO12 citations71
US4252710AFeb 24, 1981
Stabilized slurries of isoolefin polymers
EXXON RESEARCH ENGINEERING CO10 citations71
EXXONMOBIL CHEM PATENTS INC
3 patentsUS6444768B1Sep 3, 2002
Production of polyisobutylene copolymers
EXXONMOBIL CHEM PATENTS INC21 citations91
US6620898B2Sep 16, 2003
Production of polyisobutylene copolymers
EXXONMOBIL CHEM PATENTS INC8 citations72
US6939933B2Sep 6, 2005
Process for polymerizing cationically polymerizable monomers
EXXONMOBIL CHEM PATENTS INC2 citations58